EP1808867A1 - Fluorierte Zusammensetzung, die thermisch stabil ist - Google Patents
Fluorierte Zusammensetzung, die thermisch stabil ist Download PDFInfo
- Publication number
- EP1808867A1 EP1808867A1 EP06301243A EP06301243A EP1808867A1 EP 1808867 A1 EP1808867 A1 EP 1808867A1 EP 06301243 A EP06301243 A EP 06301243A EP 06301243 A EP06301243 A EP 06301243A EP 1808867 A1 EP1808867 A1 EP 1808867A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- copolymer
- less
- composition according
- titanium dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 63
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 title 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000945 filler Substances 0.000 claims abstract description 17
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 16
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- 239000011256 inorganic filler Substances 0.000 claims abstract description 6
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 36
- 229920001577 copolymer Polymers 0.000 claims description 23
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 18
- 239000011787 zinc oxide Substances 0.000 claims description 18
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 15
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 14
- 239000004811 fluoropolymer Substances 0.000 claims description 11
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 239000000523 sample Substances 0.000 description 22
- 238000006731 degradation reaction Methods 0.000 description 14
- 230000015556 catabolic process Effects 0.000 description 11
- 238000009413 insulation Methods 0.000 description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 10
- 239000000049 pigment Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 229910001507 metal halide Inorganic materials 0.000 description 4
- 150000005309 metal halides Chemical class 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000000518 rheometry Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000002516 radical scavenger Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- BLTXWCKMNMYXEA-UHFFFAOYSA-N 1,1,2-trifluoro-2-(trifluoromethoxy)ethene Chemical compound FC(F)=C(F)OC(F)(F)F BLTXWCKMNMYXEA-UHFFFAOYSA-N 0.000 description 2
- WUMVZXWBOFOYAW-UHFFFAOYSA-N 1,2,3,3,4,4,4-heptafluoro-1-(1,2,3,3,4,4,4-heptafluorobut-1-enoxy)but-1-ene Chemical compound FC(F)(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)(F)F WUMVZXWBOFOYAW-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 1
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- BZPCMSSQHRAJCC-UHFFFAOYSA-N 1,2,3,3,4,4,5,5,5-nonafluoro-1-(1,2,3,3,4,4,5,5,5-nonafluoropent-1-enoxy)pent-1-ene Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)(F)C(F)(F)F BZPCMSSQHRAJCC-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical group C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 229920006129 ethylene fluorinated ethylene propylene Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
Definitions
- the present invention relates to an extrudable, thermally stable composition used in the insulation of electrical cables and an electrical conductor coated with such an extruded composition.
- this composition is used to isolate part of the cables of category 5, 5e, 6 and 6e, in particular the white part of these cables.
- these cables are formed by the assembly of four twisted pairs, where each twisted pair comprises a copper wire insulated with a white-colored insulator associated with a copper wire insulated with a colored insulator.
- the document WO01 / 80253 proposes a high-speed extruded electrical cable insulation mixture composed of a pigmented fluoropolymer.
- the pigment used is titanium oxide coated with at least one layer of silicone and aluminum oxides.
- this composition does not provide acceptable thermal stability during the extrusion step.
- the thermal degradation generated by this step results in an imperfect surface appearance and a non-homogeneous internal structure of the insulation.
- the sheath thus formed has insulation defects with risks of electrical malfunctions and areas of blackening or discoloration.
- the invention aims to solve the problems of the prior art by proposing a fluorinated composition, having improved thermal stability, in particular, during the thermal transformation steps of the composition, making it possible to obtain an insulating material free from any defect in the composition. insulation.
- the subject of the invention is an extrudable, thermally stable composition
- a fluorinated polymer titanium dioxide
- an inorganic filler capable of neutralizing the acid formed during extrusion step of the composition, having an average particle size of less than 100 nm, and preferably less than 60 nm.
- the thermal degradation of the polymer during the extrusion process is significantly limited.
- the inorganic filler is selected from zinc oxide, magnesium oxide or calcium oxide.
- the preferred filler is zinc oxide.
- Zinc oxide is the most suitable scavenger for neutralizing hydrofluoric acid, especially during reactions taking place at high temperature such as the extrusion steps of fluoropolymers.
- the concentration of the filler is less than 5% by weight of the composition, and preferably less than 2%.
- the concentration of the titanium dioxide is less than 30% by weight of the composition, and preferably between 5% and 15%.
- the fluoropolymer is a fluorinated ethylene propylene (FEP) copolymer.
- the FEP is chosen from the tetrafluoroethylene / hexafluoroisopropene copolymer or the tetrafluoroethylene / hexafluoroisopropene / perfluoroalkylvinylether copolymer. This type of copolymer is most commonly used in the isolation of twisted pairs of LAN cables.
- the invention relates to an electrical conductor coated with at least one insulating layer, said layer being obtained from the composition according to the invention.
- the advantage of such an insulator is to obtain a homogeneous protection of the entire electrical conductor to avoid, for example, electrical breakdowns and to have a uniform appearance uncolored.
- FIG. 1 represents a comparison of the thermal stability of extruded fluorinated compositions according to the invention and according to the prior art.
- the fluoropolymers undergo different stresses, in particular shear stresses and thermal stresses, with a temperature profile varying between 250 ° C. and 400 ° C.
- Titanium dioxide is used to whiten some of the cable sheaths for data transmission, including LAN cables.
- Titanium dioxide is the most used white pigment in the coloring of plastics because of its coloring power higher than other white pigments such as zinc sulphide or lithopone white.
- titanium dioxide There are two types of titanium dioxide: rutile mesh and anatase mesh. In the case of coloring plastics, the commonly used grades are rutile type, because of their better durability.
- titanium dioxide in the fluorinated compositions, reacts with the hydrofluoric acid released during the extrusion phase to form titanium tetrafluoride.
- titanium dioxide when the titanium dioxide is covered with alumina in order to improve its dispersion in the plastic material, another metal halide is formed in the presence of hydrofluoric acid such as aluminum trifluoride.
- these metal halides will accelerate the chain splitting reactions and thus accelerate the thermal degradation process of the extruded fluorinated composition.
- the sheath obtained undergoes an irreversible degradation of its chemical structure, translated by the appearance of microbubbles, by the formation of aggregates and, ultimately, by the blackening of the initially white sheath.
- the invention therefore aims to limit the thermal degradation process of the extrudable compositions based on fluorinated polymer and comprising titanium dioxide.
- the invention proposes the addition in said composition of an inorganic filler, capable of neutralizing the acid formed during the extrusion step of the composition, having an average particle size of less than 100 nm, and of preferably less than 60 nm.
- This average size of particles makes it possible to obtain an effective action on the stabilization process of pigmented fluorinated compositions. Indeed, the smaller the average particle size, the greater the specific surface area of the filler, since the specific surface area is inversely proportional to the average particle size. It is necessary so that a maximum surface of the load is in contact with said composition.
- Said filler is a solid material which does not interact chemically with the polymer matrix and is intended to neutralize the hydrofluoric acid as it is formed.
- the insulating material thus formed is homogeneous in its chemical structure and presents no insulation defects or aggregates.
- the white color of the insulation is persistent and no trace of blackening is visible on its surface.
- the inorganic, acid scavenger is zinc oxide.
- zinc oxide is the most thermally stable filler.
- Zinc oxide is thus particularly suitable for the stabilization of systems whose processing temperatures are high, particularly in the case of the extrusion step of fluoropolymers.
- the composition comprises nanometric zinc oxide, the average particle size of which is between 35 and 55 nm.
- the filler is selected from dehydrated alkaline fillers such as magnesium oxide or calcium oxide.
- the composition comprises nanoscale magnesium oxide or nanoscale calcium oxide, the average particle size of which is approximately 30 or 40 nm, respectively.
- the concentration of the filler is less than 5% by weight of the composition, and preferably less than 2%.
- the concentration of the titanium dioxide is less than 30% by weight of the composition, and preferably between 5% and 15%.
- the concentration of the pigment in the extruded fluorinated composition and the dilution of this composition in a virgin fluorine resin during the insulation phase of an electrical conductor, in particular a copper wire, are the two parameters that govern the coloring. final insulation.
- the concentration of the pigment is greater than 30%, problems of rheology appear: the quality of the dispersion of the pigment in the fluorinated composition is impaired by the formation of aggregates and agglomerates of pigments. This results in a final non-homogeneous coloration of the insulation.
- concentration of the pigment is less than 5%, a much larger proportion of extruded fluorinated composition should be used in addition to the virgin fluorine resin.
- the fluorinated polymer may be chosen in particular from tetrafluoroethylene copolymers such as fluorinated ethylene propylene copolymer (FEP), ethylene tetrafluoroethylene (ETFE) copolymer, ethylene and fluorinated ethylene-propylene terpolymer ( DAIKIN EFEP or DYNEON HTE), copolymer of tetrafluoroethylene and perfluoromethylvinylether (MFA) and copolymer of tetrafluoroethylene and perfluoropropylvinylether (PFA), as well as homopolymers, copolymers and terpolymers containing vinylidene fluoride (PVDF, THV).
- FEP fluorinated ethylene propylene copolymer
- ETFE ethylene tetrafluoroethylene
- DAIKIN EFEP or DYNEON HTE fluorinated ethylene-propylene terpolymer
- the composition comprises a fluorinated ethylene propylene (FEP) copolymer, especially tetrafluoroethylene (TFE) / hexafluoroisopropene (HFP) copolymer.
- FEP fluorinated ethylene propylene
- TFE tetrafluoroethylene
- HFP hexafluoroisopropene
- Modified FEP copolymers can also be used.
- the modification is made by the addition, in a minor amount, of a third monomer during the synthesis of the modified FEPs, which may be a perfluoroalkylvinyl ether (PAVE) monomer of the perfluoropropylvinyl ether (PPVE) or perfluoroethylvinyl ether (PEVE) type. .
- PAVE perfluoroalkylvinyl ether
- PPVE perfluoropropylvinyl ether
- PEVE perfluoroethylvinyl ether
- the main but non-limiting application of the invention lies in the field of data transmission cables. It concerns, in fact, electrical conductors coated with at least one insulating layer obtained from the composition according to the invention.
- the stability of the material can be evaluated in two ways. The first is to follow the evolution of the Newtonian viscosity of the fluorinated composition at different stages of thermal degradation: the composition having the lowest viscosity drop as a function of the treatment time is the most thermally stable. The second analysis consists in progressively comparing the evolution of the white color of the composition towards a gray discoloration, consequence of its thermal degradation.
- Samples were prepared by mixing the FEP resin, pigments and fillers with a Berstorff Corotative Bi-Vis extruder.
- the inorganic filler used is nanometric zinc oxide, the average particle size of which is between 35 and 55 nm and whose specific surface area is of the order of 20-30 m 2 / g.
- Table 1 gives the compositions of the samples of the various mixtures studied in the context of the invention.
- the extruded fluorinated composition is then cooled in a tray of water, then dried and granulated.
- Sample A was aged according to the procedure described above and has the highest thermal stability among the samples tested in the study.
- Sample B was aged according to the procedure described above. Its thermal stability decreases by 4.1% compared to that of the standard sample A.
- Sample C was prepared according to the procedure described above by mixing the TFE / HFP / PAVE copolymer with 15% by weight of TiO 2 .
- the capillary rheometry analysis of the sample shows that the thermal stability drops by 22.6% compared to the standard sample A.
- Sample D was prepared according to the procedure described above by mixing the TFE / HFP / PAVE copolymer with 14.8% by weight of TiO 2 and 0.2% by weight of nanometric ZnO, the average particle size of which is between 0.035 and 0.055 ⁇ m.
- the capillary rheometry analysis of the sample shows that the thermal stability drops by 19.1% compared to the standard sample A.
- Sample E was prepared according to the procedure described above by mixing the TFE / HFP / PAVE copolymer with 14% by weight of TiO 2 and 1% by weight of nanometric ZnO, the average particle size of which is between 0.035 and 0.055 ⁇ m.
- the capillary rheometry analysis of the sample shows that the thermal stability drops by 13.7% compared to the standard sample A.
- sample D The presence of 0.2% of nanometric ZnO (sample D) and 1% of nanometric ZnO (sample E) makes it possible to improve the thermal stability of the mixture by 4.2% and 10.3%, respectively, compared to sample C.
- a second simple and effective means, not shown, for evaluating the thermal stability of extruded fluorinated compositions is to observe the evolution of the discoloration of the material, in particular its blackening, as a function of the thermal aging time at 400 ° C.
- sample C begins to darken after 5 minutes in the sleeve of the capillary rheometer.
- samples D and E having undergone the same type of thermal aging, begin to be discolored only after 10 minutes in the sleeve of the capillary rheometer.
- fillers such as synthetic hydrocalcites or hydrocalumites can also be used.
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Organic Insulating Materials (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Inorganic Insulating Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0650112A FR2895990B1 (fr) | 2006-01-12 | 2006-01-12 | Composition fluoree thermiquement stable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1808867A1 true EP1808867A1 (de) | 2007-07-18 |
| EP1808867B1 EP1808867B1 (de) | 2011-04-13 |
Family
ID=36360001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06301243A Not-in-force EP1808867B1 (de) | 2006-01-12 | 2006-12-12 | Fluorierte Zusammensetzung, die thermisch stabil ist |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20070203281A1 (de) |
| EP (1) | EP1808867B1 (de) |
| KR (1) | KR20070075285A (de) |
| CN (1) | CN101003654A (de) |
| AT (1) | ATE505796T1 (de) |
| CA (1) | CA2573187C (de) |
| DE (1) | DE602006021272D1 (de) |
| FR (1) | FR2895990B1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2009008301A (es) | 2007-08-03 | 2009-09-18 | Charles Glew | Composiciones para formulacion, extrusion y procesamiento de fusion de fluoropolimeros espumables y celulares. |
| KR100937226B1 (ko) * | 2008-01-14 | 2010-01-15 | 한국생산기술연구원 | 산화칼슘이 첨가되어 제조된 마그네슘 합금의 반용융 압출 방법 |
| CN101970142B (zh) * | 2008-01-14 | 2014-05-28 | 韩国生产技术研究院 | 触变挤压模制装置及触变挤压模制方法 |
| US10032542B2 (en) | 2014-11-07 | 2018-07-24 | Cable Components Group, Llc | Compositions for compounding, extrusion and melt processing of foamable and cellular halogen-free polymers |
| US10031301B2 (en) * | 2014-11-07 | 2018-07-24 | Cable Components Group, Llc | Compositions for compounding, extrusion, and melt processing of foamable and cellular polymers |
| US9728298B2 (en) | 2015-06-26 | 2017-08-08 | Daikin America, Inc. | Radiation crosslinked fluoropolymer compositions containing low level of extractable fluorides |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905197A1 (de) * | 1997-09-30 | 1999-03-31 | General Electric Company | Warmhärtende Fluorsiliconkautschuk-Zusammensetzungen |
| WO2001080253A1 (en) * | 2000-04-13 | 2001-10-25 | E.I. Dupont De Nemours And Company | Process for coating wire conductor |
| WO2005073984A1 (en) * | 2004-01-23 | 2005-08-11 | E.I. Dupont De Nemours And Company | Filled perfluoropolymers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0789049A1 (de) * | 1996-02-09 | 1997-08-13 | Ciba SC Holding AG | Antistatisch ausgerüstete Polymere |
-
2006
- 2006-01-12 FR FR0650112A patent/FR2895990B1/fr not_active Expired - Fee Related
- 2006-11-07 US US11/594,000 patent/US20070203281A1/en not_active Abandoned
- 2006-12-12 EP EP06301243A patent/EP1808867B1/de not_active Not-in-force
- 2006-12-12 DE DE602006021272T patent/DE602006021272D1/de active Active
- 2006-12-12 AT AT06301243T patent/ATE505796T1/de not_active IP Right Cessation
-
2007
- 2007-01-05 KR KR1020070001309A patent/KR20070075285A/ko not_active Withdrawn
- 2007-01-05 CA CA2573187A patent/CA2573187C/en not_active Expired - Fee Related
- 2007-01-12 CN CNA2007100021898A patent/CN101003654A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905197A1 (de) * | 1997-09-30 | 1999-03-31 | General Electric Company | Warmhärtende Fluorsiliconkautschuk-Zusammensetzungen |
| WO2001080253A1 (en) * | 2000-04-13 | 2001-10-25 | E.I. Dupont De Nemours And Company | Process for coating wire conductor |
| WO2005073984A1 (en) * | 2004-01-23 | 2005-08-11 | E.I. Dupont De Nemours And Company | Filled perfluoropolymers |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070075285A (ko) | 2007-07-18 |
| CA2573187A1 (en) | 2007-07-12 |
| CA2573187C (en) | 2014-06-03 |
| FR2895990A1 (fr) | 2007-07-13 |
| US20070203281A1 (en) | 2007-08-30 |
| FR2895990B1 (fr) | 2008-02-15 |
| EP1808867B1 (de) | 2011-04-13 |
| ATE505796T1 (de) | 2011-04-15 |
| CN101003654A (zh) | 2007-07-25 |
| DE602006021272D1 (de) | 2011-05-26 |
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