CN107501599A - A kind of whisker by expandable microspheres foaming supports polypropylene plastics and preparation method - Google Patents
A kind of whisker by expandable microspheres foaming supports polypropylene plastics and preparation method Download PDFInfo
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- CN107501599A CN107501599A CN201710695018.1A CN201710695018A CN107501599A CN 107501599 A CN107501599 A CN 107501599A CN 201710695018 A CN201710695018 A CN 201710695018A CN 107501599 A CN107501599 A CN 107501599A
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- polypropylene
- expandable microspheres
- whisker
- foaming
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 126
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 108
- -1 polypropylene Polymers 0.000 title claims abstract description 106
- 238000005187 foaming Methods 0.000 title claims abstract description 66
- 229920000103 Expandable microsphere Polymers 0.000 title claims abstract description 58
- 229920003023 plastic Polymers 0.000 title claims abstract description 32
- 239000004033 plastic Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 58
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 21
- 238000005215 recombination Methods 0.000 claims description 15
- 230000006798 recombination Effects 0.000 claims description 15
- 239000000155 melt Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000012661 block copolymerization Methods 0.000 claims description 6
- TUZBYYLVVXPEMA-UHFFFAOYSA-N butyl prop-2-enoate;styrene Chemical compound C=CC1=CC=CC=C1.CCCCOC(=O)C=C TUZBYYLVVXPEMA-UHFFFAOYSA-N 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 3
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 3
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- SPTHWAJJMLCAQF-UHFFFAOYSA-N 1,2-di(propan-2-yl)benzene;hydrogen peroxide Chemical compound OO.CC(C)C1=CC=CC=C1C(C)C SPTHWAJJMLCAQF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims 1
- 238000007664 blowing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 25
- 239000000463 material Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 238000011056 performance test Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- OKIRBHVFJGXOIS-UHFFFAOYSA-N 1,2-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=CC=C1C(C)C OKIRBHVFJGXOIS-UHFFFAOYSA-N 0.000 description 2
- WWXUGNUFCNYMFK-UHFFFAOYSA-N Acetyl citrate Chemical compound CC(=O)OC(=O)CC(O)(C(O)=O)CC(O)=O WWXUGNUFCNYMFK-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000012148 binding buffer Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 244000248349 Citrus limon Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/22—Expandable microspheres, e.g. Expancel®
-
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/14—Copolymers of propene
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- C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2353/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Materials Engineering (AREA)
- Emergency Medicine (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of whisker by expandable microspheres foaming and supports polypropylene plastics and preparation method, it must be blended using organic crystalline with expandable microspheres, low density polyethylene (LDPE) wraps up composite foamable agent, then carries out mould foaming processing with polypropylene, polypropylene foam is prepared.The present invention provides the above method, overcome and polypropylene expanded process be present during EPP is prepared in the prior art and be difficult to control, the low technological deficiency for causing polypropylene foam of low quality of polyacrylic melt strength, effective RPP melt is realized, foaming process is effectively controlled, and Air Bubble Size is uniform, the higher technique effect of the product quality of acquisition, process program is simple, and cost is cheap, is suitable for mass producing.
Description
Technical field
The present invention relates to polymer composite manufacture field, and in particular to a kind of whisker by expandable microspheres foaming supports
Polypropylene plastics and preparation method.
Background technology
EPP (Expanded Polypropylene) is expanded polypropylene material, and it is a kind of the highly crystalline of performance brilliance
Type polymer/gas recombination material, fastest-rising environment-friendly novel resistance to compression at present is turned into its unique and superior performance and buffered
Heat-barrier material.
EPP products have very excellent antidetonation energy absorption performance, response rate is high after deformation, good heat resistance, chemically-resistant
Product, oil resistivity and thermal insulation;Meanwhile its light weight, article quality can be greatly reduced;In addition, EPP or a kind of environmentally friendly material
Material, it is prone to which β degrades, and polypropylene（PP）Foam is easy to recycle, and its environment friendly is better than other foamed materials, because
And it is referred to as " green " foam.The excellent properties showed just because of it so that EPP turns into after polystyrene (EPS), gathered
The novel foam material of application value and market potential is had more after urethane (EPU), polyethylene (EPE) foamed material.
However, itself foaming process of one side PP is difficult to control.The PP of conventional method production is a kind of line style hemicrystalline
Polymer, strand is seldom branched, molecular weight distribution relative narrower, this cause its softening point and fusing point very close to.In temperature
Before reaching fusing point, it does not flow substantially, and after temperature exceedes fusing point, melt strength drastically declines, and this melt is difficult to encase
Gas;In addition, polypropylene is changed into crystalline state from molten state can release substantial amounts of heat, the time required to being solid by melt transform
It is longer;In addition polypropylene air penetrability is high, and foamed gas are easily escaped.Therefore, foaming process narrow suitable for polypropylene expanded temperature range
It is difficult to control, steep that wall rupture in foaming process, gas escape are easily caused, abscess caves in and bubble merges.
On the other hand, PP melt strength is low, significantly limit its range of work and application field, is such as led in thermoforming
Domain, because PP melt strengths are low, when causing plastics sucking moulding, container wall thickness is uneven or rupture;When extrusion coated, common PP tables
Reveal obvious constriction and melt resonance, thus phenomena such as edge curl, shrink occur;During extrusion foaming, micro-pore wall easily occurs
Rupture, expansion ratio is low etc..
Chinese Patent Application No. 201110364411.5 discloses a kind of polypropylene expanded technique, has used and has waited rule poly- third
Alkene, and add LDPE, pretreated SGF and silicon whisker and unify mixing granulation, son will be granulated and include the formyl of azo two
Ammonium AC, foamed promoter ZnO, nucleating agent SiO2 Common composite foamable agent mixed foaming, expanded polypropylene is prepared,
But each foamed promoter foaming condition is different in composite foamable agent, foaming process is difficult to control, and influences product quality.
Chinese Patent Application No. 201410260862.8 discloses a kind of foaming enhancing halogen-free polypropylene flame redardant and its preparation
Method, using surface through the graphene that titanate coupling agent is handled as reinforcing material, on the one hand because graphene is easily reunited,
It is uniformly dispersed in polypropylene material more difficult, on the other hand, graphene price is higher, using graphene as reinforcing agent,
Add product cost.
In summary, PP itself foaming process during EPP is prepared be present to be difficult to control, PP melt strength is low to ask
Topic causes EPP foaming difficulties, and the EPP of acquisition is of low quality, limits EPP uses of large-scale production.And system of the prior art
Standby technique has PP foam material to be optimized, therefore expecting high quality, there is provided one kind can improve PP melt strengths
Preferable foam pattern is crucial.
The content of the invention
It is difficult to control for PP foaming process be present during EPP is prepared in the prior art, PP melt strength is low to lead
EPP technological deficiencies of low quality are caused, the present invention proposes that a kind of whisker by expandable microspheres foaming supports polypropylene plastics and system
Preparation Method, the nanoscale organic crystalline after surface treatment must be blended with melt polypropylene, in the presence of expandable microspheres, pass through mould
Tool foaming prepares polypropylene foam, realizes and PP foaming process is controlled, while improve the intensity of PP melts, Jin Erti
High EPP quality.
To solve the above problems, the present invention uses following technical scheme：
On the one hand a kind of whisker by expandable microspheres foaming is provided support polypropylene plastics, the polypropylene plastics is by following masses
The raw material of part is prepared：
Polypropylene powder 69-71 parts
Low density polyethylene (LDPE) 14-16 parts
Organic crystalline must 8-10 parts
Expandable microspheres 2-10 parts
Modifying agent 3-5 parts
Dispersant 0.5-2.5 parts
Preferably, described polypropylene powder be HOPP, block copolymerization polypropylene and atactic copolymerized polypropene one kind or
Several blends, the granularity of the polypropylene powder is 200-800 mesh.
Preferably, described organic crystalline must be cellulose whiskers, poly- (butyl acrylate-styrene) whisker, poly- (4- hydroxyls
At least one of benzoic ether) whisker, described organic crystalline palpus draw ratio is 80-500：1.
Preferably, the expandable microspheres are selected from least one of F-78KD, F-82D, F-100D, MSH-550.
Preferably, the modifying agent is benzoyl peroxide, cumyl peroxide, di-tert-butyl peroxide, peroxide
Change at least one of hydrogen diisopropylbenzene (DIPB).
Preferably, described dispersant be oleamide, erucyl amide, polyethylene glycol adipate, phthalic acid ester,
At least one of citrate, acetyl citrate, monoglyceride and pentaerythritol ester.
On the other hand, there is provided a kind of whisker by expandable microspheres foaming supports the preparation method of polypropylene plastics, using poly-
Propylene melt and organic crystalline must be raw material, be blended with expandable microspheres, then carry out mould foaming and handle to obtain whisker support poly- third
Alkene plastics, specific method are as follows：
（1）By 8-10 mass parts organic crystalline palpus, 2-10 mass parts expandable microspheres, 3-5 mass parts modifying agent and 0.5-2.5 mass parts
Dispersant, with the 600-1200rpm scattered 10-25min of rotating speed mixing, obtains surface recombination organic crystalline palpus in high-speed mixer
Expandable microspheres；
（2）By step（1）The expandable microspheres and 14-16 part Ldpe Melts of obtained surface recombination organic crystalline palpus are total to
It is mixed, stir, obtain the composite foamable agent of low density polyethylene (LDPE) parcel；
（3）By step（2）The composite foamable agent of obtained low density polyethylene (LDPE) parcel mixes with 69-71 parts polypropylene powder melt
Close, injected after stirring in grinding tool, under the foaming effect of expandable microspheres, whisker is uniformly dispersed by foaming and support poly-
Acrylic plastic, polypropylene foam is prepared.
Preferably, the preparation method of the Ldpe Melt heats to be placed in water-bath or oil bath, water-bath or oil
Bath temperature is set as 150-180 DEG C, and stirring adds 0.1-1 hours；
The preparation method of the melt polypropylene heats to be placed in water-bath or oil bath, and water-bath or oil bath temperature are set as 160-
185 DEG C, agitating and heating 0.2-1 hours.
Preferably, the foaming process temperature is 200-215 DEG C, expandable microspheres expansion, in the case where temperature is 80-130 DEG C, is protected
After warm 0-5 hours, carry out producing polypropylene foam after curing molding is down to room temperature.
Prior art uses each foamed promoter foaming condition difference, foaming process in composite foamable agent to be difficult to control
System, influences product quality, thus is necessary that the preferable foam process of PP melt strengths can be improved by developing one kind.The present invention adopts
It must be blended with organic crystalline with expandable microspheres, low density polyethylene (LDPE) parcel composite foamable agent, then carry out mould foaming with polypropylene
Processing, whisker is uniformly dispersed by foaming and support polypropylene plastics, organic nano whisker not only plays to melt polypropylene
Supporting role, solves the low caused foaming problem of melt strength of polypropylene, it is possible to increase the mechanical property of foamed plastics.
Further, the present invention is prevented in foaming process using low density polyethylene (LDPE) as binding agent and buffer, swollen by internal gas
Internal stress tear organic crystalline caused by swollen must be with polypropylene interface, and so as to play a part of stress buffer, organic crystalline be able to must have
Effect enhancing PP melts, foaming process are effectively controlled, and Air Bubble Size is uniform, and the product quality of acquisition is higher.
The present invention provides a kind of whisker by expandable microspheres foaming and supports polypropylene plastics and preparation method, with prior art
Compare, its protrude the characteristics of and excellent effect be：
1st, the present invention must be blended with expandable microspheres using organic crystalline, and low density polyethylene (LDPE) wraps up composite foamable agent, then with poly- third
Alkene carries out mould foaming processing, whisker is uniformly dispersed by foaming and supports polypropylene plastics, organic nano whisker is not only right
Melt polypropylene is played a supporting role, and solves the low caused foaming problem of melt strength of polypropylene.
2nd, low density polyethylene (LDPE) is used to be prevented as binding agent and buffer in foaming process, by inside in this programme
Caused by gas expansion internal stress tear organic crystalline must with polypropylene interface, so as to play a part of stress buffer, organic crystalline palpus
PP melts can effectively be strengthened, foaming process is effectively controlled, and Air Bubble Size is uniform, and the product quality of acquisition is higher.
3rd, scheme preparation technology disclosed by the invention is simple, and the polypropylene foam property prepared is stable, is easy to real
Existing scale industrial production.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
（1）It is 500 by draw ratio：1 poly- (butyl acrylate-styrene) whisker of 8 mass parts, 5 mass parts F-100D expansions are micro-
Ball, 5 mass parts di-isopropylbenzene hydroperoxides and 0.5 mass parts are polyethylene glycol adipate, phthalic acid ester, acetyl lemon
Acid ester mixtures dispersant, with the 1100rpm scattered 18min of rotating speed mixing, obtains surface recombination organic crystalline in high-speed mixer
The expandable microspheres of palpus；
（2）Low density polyethylene (LDPE) is placed in water-bath or oil bath and heated, polypropylene powder is HOPP, block copolymerization polypropylene
With one or more of blends of atactic copolymerized polypropene, the granularity of the polypropylene powder is 800 mesh, water-bath or oil bath temperature
Degree is set as 180 DEG C, and stirring adds 1 hour, obtains Ldpe Melt；By step（1）Obtained surface recombination organic crystalline
The expandable microspheres of palpus and 16 parts of Ldpe Melts blendings, stir, obtain the compound hair of low density polyethylene (LDPE) parcel
Infusion；
（3）Polypropylene is placed in water-bath or oil bath and heated, water-bath or oil bath temperature are set as 185 DEG C, agitating and heating 1 hour
Afterwards, melt polypropylene is obtained, by step（2）The composite foamable agent and 69 parts of polypropylene of obtained low density polyethylene (LDPE) parcel
Powder melt mixed, inject in grinding tool and foam after stirring, foaming process temperature is 215 DEG C, expandable microspheres foaming and intumescing, in temperature
Spend at 80 DEG C, after being incubated 5 hours, curing molding produces polypropylene foam after being down to room temperature.
After performance test being carried out to what is prepared in embodiment by the whisker support polypropylene plastics of expandable microspheres foaming,
It is as shown in table 1 to obtain data.
Embodiment 2
（1）It is 400 by draw ratio：1 10 parts by mass of cellulose whiskers, poly- (butyl acrylate-styrene) whisker, poly- (4- hydroxyls
Yl benzoic acid ester) mixture of whisker, 9 mass parts F-82D expandable microspheres, 4 mass parts cumyl peroxides, di-t-butyl mistake
Oxide mixture modifying agent and 0.5 mass parts monoglyceride disperse 15min in high-speed mixer with 900rpm rotating speed mixing,
Obtain the expandable microspheres of surface recombination organic crystalline palpus；
（2）Low density polyethylene (LDPE) is placed in water-bath or oil bath and heated, polypropylene powder is HOPP, block copolymerization polypropylene
With one or more of blends of atactic copolymerized polypropene, the granularity of the polypropylene powder is 700 mesh, water-bath or oil bath temperature
Degree is set as 160 DEG C, and stirring adds 0.8 hour, obtains Ldpe Melt；By step（1）Obtained surface recombination is organic
The expandable microspheres of whisker and 14 parts of Ldpe Melt blendings, stir, obtain the compound of low density polyethylene (LDPE) parcel
Foaming agent；
（3）Polypropylene is placed in water-bath or oil bath and heated, water-bath or oil bath temperature are set as 175 DEG C, agitating and heating 0.8 hour
Afterwards, melt polypropylene is obtained, by step（2）The composite foamable agent and 71 parts of polypropylene of obtained low density polyethylene (LDPE) parcel
Powder melt mixed, inject in grinding tool and foam after stirring, foaming process temperature is 210 DEG C, expandable microspheres foaming and intumescing, in temperature
Spend at 120 DEG C, after being incubated 2 hours, curing molding produces polypropylene foam after being down to room temperature.
After performance test being carried out to what is prepared in embodiment by the whisker support polypropylene plastics of expandable microspheres foaming,
It is as shown in table 1 to obtain data.
Embodiment 3
（1）It is 350 by draw ratio：19 parts by mass of cellulose whiskers, 5 mass parts MSH-550,3.5 mass parts hydrogen peroxide two
Isopropylbenzene and 2 mass parts are that citrate, the mixed dispersant of acetyl citrate are turned in high-speed mixer with 800rpm
The scattered 15min of speed mixing, obtains the expandable microspheres of surface recombination organic crystalline palpus；
（2）Low density polyethylene (LDPE) is placed in water-bath or oil bath and heated, polypropylene powder is HOPP, block copolymerization polypropylene
Blend, the granularity of polypropylene powder is 500 mesh, and water-bath or oil bath temperature are set as 150 DEG C, stirring plus when 0.8, is obtained low
Density polyethylene melt；By step（1）The expandable microspheres of obtained surface recombination organic crystalline palpus and 16 parts of low density polyethylene (LDPE)s melt
Body is blended, and stirs, and obtains the composite foamable agent of low density polyethylene (LDPE) parcel；
（3）Polypropylene is placed in water-bath or oil bath and heated, water-bath or oil bath temperature are set as 185 DEG C, agitating and heating 0.2 hour
Afterwards, melt polypropylene is obtained, by step（2）The composite foamable agent and 69 parts of polypropylene of obtained low density polyethylene (LDPE) parcel
Powder melt mixed, inject in grinding tool and foam after stirring, foaming process temperature is 200 DEG C, expandable microspheres foaming and intumescing, in temperature
Spend at 100 DEG C, after being incubated 1 hour, curing molding produces polypropylene foam after being down to room temperature.
After performance test being carried out to what is prepared in embodiment by the whisker support polypropylene plastics of expandable microspheres foaming,
It is as shown in table 1 to obtain data.
Embodiment 4
（1）It is 200 by draw ratio：1 poly- (4-HBA ester) whisker of 10 mass parts, 10 mass parts F-100D, 3 mass parts
Cumyl peroxide, the mixture of di-tert-butyl peroxide and 0.5 mass parts erucyl amide are crossed in high-speed mixer with
The 1200rpm scattered 10min of rotating speed mixing, obtains the expandable microspheres of surface recombination organic crystalline palpus；
（2）Low density polyethylene (LDPE) is placed in water-bath or oil bath and heated, polypropylene powder is atactic copolymerized polypropene, the polypropylene
The granularity of powder is 400 mesh, and water-bath or oil bath temperature are set as 160 DEG C, and stirring adds 0.5 hour, obtain low density polyethylene (LDPE) and melt
Body；By step（1）The expandable microspheres of obtained surface recombination organic crystalline palpus and 14 parts of Ldpe Melts blendings, stirring are equal
It is even, obtain the composite foamable agent of low density polyethylene (LDPE) parcel；
（3）Polypropylene is placed in water-bath or oil bath and heated, water-bath or oil bath temperature are set as 165 DEG C, agitating and heating 0.5 hour
Afterwards, melt polypropylene is obtained, by step（2）The composite foamable agent and 69 parts of polypropylene of obtained low density polyethylene (LDPE) parcel
Powder melt mixed, inject in grinding tool and foam after stirring, foaming process temperature is 205 DEG C, expandable microspheres foaming and intumescing, in temperature
Spend at 100 DEG C, curing molding produces polypropylene foam after being down to room temperature.
After performance test being carried out to what is prepared in embodiment by the whisker support polypropylene plastics of expandable microspheres foaming,
It is as shown in table 1 to obtain data.
Embodiment 5
（1）It is 80 by draw ratio：1 10 parts by mass of cellulose whiskers, poly- (butyl acrylate-styrene) whisker mixture, 2 matter
Measure part F-78KD, expandable microspheres, 5 mass parts benzoyl peroxides and 1.5 mass parts be oleamide in high-speed mixer with
The 600rpm scattered 25min of rotating speed mixing, obtains the expandable microspheres of surface recombination organic crystalline palpus；
（2）Low density polyethylene (LDPE) is placed in water-bath or oil bath and heated, polypropylene powder is HOPP, block copolymerization polypropylene
With atactic copolymerized polypropene blend, the granularity of polypropylene powder is 200 mesh, and water-bath or oil bath temperature are set as 150 DEG C,
Stirring adds 0.1 hour, obtains Ldpe Melt；By step（1）The expandable microspheres of obtained surface recombination organic crystalline palpus
It is blended, stirs with 16 parts of Ldpe Melts, obtains the composite foamable agent of low density polyethylene (LDPE) parcel；
（3）Polypropylene is placed in water-bath or oil bath and heated, water-bath or oil bath temperature are set as 160 DEG C, agitating and heating 1 hour
Afterwards, melt polypropylene is obtained, by step（2）The composite foamable agent and 71 parts of polypropylene of obtained low density polyethylene (LDPE) parcel
Powder melt mixed, inject in grinding tool and foam after stirring, foaming process temperature is 200 DEG C, expandable microspheres foaming and intumescing, in temperature
Spend for 130 DEG C, after being incubated 0.5 hour, curing molding produces polypropylene foam after being down to room temperature.
After performance test being carried out to what is prepared in embodiment by the whisker support polypropylene plastics of expandable microspheres foaming,
It is as shown in table 1 to obtain data.
Table 1
| Performance indications | Density（g/cm3） | Average pore size（mm） | Intensity (MPa) |
| Embodiment one | 0.22 | 1.25 | 15 |
| Embodiment two | 0.18 | 1.61 | 13 |
| Embodiment three | 0.31 | 0.94 | 10 |
| Example IV | 0.25 | 1.05 | 12 |
| Embodiment five | 0.26 | 1.27 | 13 |
Claims (9)
1. a kind of whisker by expandable microspheres foaming supports polypropylene plastics, it is characterised in that the polypropylene plastics is by following
The raw material of mass parts is prepared：
Polypropylene powder 69-71 parts,
Low density polyethylene (LDPE) 14-16 parts,
Organic crystalline palpus 8-10 parts,
Expandable microspheres 2-10 parts,
Modifying agent 3-5 parts,
Dispersant 0.5-2.5 parts.
2. a kind of whisker by expandable microspheres foaming supports polypropylene plastics according to claim 1, it is characterised in that：It is described
Polypropylene powder be HOPP, block copolymerization polypropylene and atactic copolymerized polypropene one or more of blends, institute
The granularity for stating polypropylene powder is 200-800 mesh.
3. a kind of whisker by expandable microspheres foaming supports polypropylene plastics according to claim 1, it is characterised in that：It is described
Organic crystalline must be cellulose whiskers, poly- (butyl acrylate-styrene) whisker, in poly- (4-HBA ester) whisker extremely
Few one kind, described organic crystalline palpus draw ratio is 80-500：1.
4. a kind of whisker by expandable microspheres foaming supports polypropylene plastics according to claim 1, it is characterised in that：It is described
Expandable microspheres are a kind of in F-78KD, F-82D, F-100D, MSH-550.
5. a kind of whisker by expandable microspheres foaming supports polypropylene plastics according to claim 1, it is characterised in that：It is described
Modifying agent be benzoyl peroxide, cumyl peroxide, di-tert-butyl peroxide, in di-isopropylbenzene hydroperoxide at least
It is a kind of.
6. a kind of whisker by expandable microspheres foaming supports polypropylene plastics according to claim 1, it is characterised in that：It is described
Dispersant for oleamide, erucyl amide, polyethylene glycol adipate, phthalic acid ester, citrate, acetyl tributyl citrate
At least one of ester, monoglyceride and pentaerythritol ester.
7. a kind of whisker by expandable microspheres foaming supports the preparation method of polypropylene plastics, it is characterised in that using polypropylene
Melt and organic crystalline must be raw material, be blended with expandable microspheres, then carry out foaming and handle to obtain whisker support polypropylene plastics, tool
Body method is as follows：
（1）By 8-10 mass parts organic crystalline palpus, 2-10 mass parts expandable microspheres, 3-5 mass parts modifying agent and 0.5-2.5 mass parts
Dispersant, with the 600-1200rpm scattered 10-25min of rotating speed mixing, obtains surface recombination organic crystalline palpus in high-speed mixer
Expandable microspheres；
（2）By step（1）The expandable microspheres and 14-16 part Ldpe Melts of obtained surface recombination organic crystalline palpus are total to
It is mixed, stir, obtain the composite foamable agent of low density polyethylene (LDPE) parcel；
（3）By step（2）The composite foamable agent of obtained low density polyethylene (LDPE) parcel mixes with 69-71 parts polypropylene powder melt
Close, inject in grinding tool and foam after stirring, whisker is uniformly dispersed by foaming and to support polypropylene plastics to be prepared poly-
Acryl foam plastics.
8. a kind of whisker by expandable microspheres foaming supports the preparation method of polypropylene plastics according to claim 7, it is special
Sign is that the preparation method of the Ldpe Melt is heated to be placed in water-bath or oil bath, and water-bath or oil bath temperature are set
It is set to 150-180 DEG C, stirring adds 0.1-1 hours；
The preparation method of the melt polypropylene heats to be placed in water-bath or oil bath, and water-bath or oil bath temperature are set as 160-
185 DEG C, agitating and heating 0.2-1 hours.
9. a kind of whisker by expandable microspheres foaming supports the preparation method of polypropylene plastics according to claim 7, it is special
Sign is that the foaming process blowing temperature is 200-215 DEG C, expandable microspheres expansion, in the case where temperature is 80-130 DEG C, is incubated 0-
After 5 hours, carry out producing polypropylene foam after curing molding is down to room temperature.
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| CN109251410A (en) * | 2018-08-14 | 2019-01-22 | 苏州禾昌聚合材料股份有限公司 | Low warp glass fiber reinforced polypropylene compound material and preparation method thereof |
| WO2022178699A1 (en) * | 2021-02-24 | 2022-09-01 | 海南光宇生物科技有限公司 | Bacterial cellulose thermoplastic polymer composite foamed material, preparation method therefor and use thereof |
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| CN103113612A (en) * | 2011-11-17 | 2013-05-22 | 芜湖红方包装科技有限公司 | Polypropylene foaming process |
| CN104153241A (en) * | 2014-07-15 | 2014-11-19 | 安徽紫荆花壁纸股份有限公司 | High-hardness, high-toughness and anti-scratch PVC (Polyvinyl Chloride) paste for PVC foamed wallpaper and preparation method thereof |
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| CN101985512A (en) * | 2010-02-23 | 2011-03-16 | 国家复合改性聚合物材料工程技术研究中心 | Physically expandable microsphere epoxy foaming material and preparation method thereof |
| CN103113612A (en) * | 2011-11-17 | 2013-05-22 | 芜湖红方包装科技有限公司 | Polypropylene foaming process |
| CN104153241A (en) * | 2014-07-15 | 2014-11-19 | 安徽紫荆花壁纸股份有限公司 | High-hardness, high-toughness and anti-scratch PVC (Polyvinyl Chloride) paste for PVC foamed wallpaper and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108929496A (en) * | 2018-08-06 | 2018-12-04 | 合肥壹物新材料有限公司 | A kind of preparation method of fiber composite EPO master batch and EPO foamed plastics |
| CN108929496B (en) * | 2018-08-06 | 2021-03-19 | 合肥壹物新材料科技股份有限公司 | Preparation method of fiber composite EPO master batch and EPO foamed plastic |
| CN109251410A (en) * | 2018-08-14 | 2019-01-22 | 苏州禾昌聚合材料股份有限公司 | Low warp glass fiber reinforced polypropylene compound material and preparation method thereof |
| WO2022178699A1 (en) * | 2021-02-24 | 2022-09-01 | 海南光宇生物科技有限公司 | Bacterial cellulose thermoplastic polymer composite foamed material, preparation method therefor and use thereof |
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