CN109111820A - Winding steel paint base composition of trimming salt spray resistance and preparation method thereof - Google Patents
Winding steel paint base composition of trimming salt spray resistance and preparation method thereof Download PDFInfo
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- CN109111820A CN109111820A CN201810747242.5A CN201810747242A CN109111820A CN 109111820 A CN109111820 A CN 109111820A CN 201810747242 A CN201810747242 A CN 201810747242A CN 109111820 A CN109111820 A CN 109111820A
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- trimming
- salt spray
- parts
- base composition
- paint base
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
本发明公开了一种优异切边耐盐雾的卷钢底漆组合物，由以下重量份的组分制成：环氧树脂45～55份，氨基树脂4～10份，聚氨酯树脂5～13份，颜料18～28份，助剂1～2份，溶剂13～27份。本发明还公开了一种上述优异切边耐盐雾的卷钢底漆组合物的制备方法：将环氧树脂45～55份、颜料18～28份混合、研磨后得到浆料；在所述浆料中加入氨基树脂4～10份混合，然后加入聚氨酯树脂5～13份、助剂1～2份和溶剂13～27份，混合。本发明的优点在于：所得切边耐盐雾的卷钢底漆组合物具有良好附着性、耐酸碱性以及切边盐雾性能。The invention discloses a coil steel primer composition with excellent edge trimming resistance to salt spray, which is prepared from the following components in parts by weight: 45-55 parts of epoxy resin, 4-10 parts of amino resin, and 5-13 parts of polyurethane resin parts, 18-28 parts of pigment, 1-2 parts of auxiliary agent, and 13-27 parts of solvent. The invention also discloses a preparation method of the above-mentioned excellent trimming and salt spray-resistant coil steel primer composition: mixing 45-55 parts of epoxy resin and 18-28 parts of pigment, and grinding to obtain slurry; Add 4-10 parts of amino resin to the slurry and mix, then add 5-13 parts of polyurethane resin, 1-2 parts of auxiliary agent and 13-27 parts of solvent, and mix. The advantages of the invention lie in that the obtained coil steel primer composition for cutting edge salt spray resistance has good adhesion, acid and alkali resistance and salt spray performance for cutting edge.
Description
Technical field
The invention belongs to technical field of paint preparation, are related to a kind of preparation side of the winding steel paint base composition of trimming salt spray resistance
Method.
Background technique
General Pre-coating Coil plate need in process be bent and shear, the edge of shearing can make substrate, coating and
Coating all exposures in the environment, form electrochemical reaction area and start to corrode.The degree and speed that trimming corrosion occurs depend on
Several factors, e.g., the thickness of steel plate, the thickness of coating, the planarization of substrate, coating system, environmental factor and medium etc..
From the point of view of coating system perspective, paint coatings can accelerate or slow down the journey of trimming corrosion under different apparent states
Degree.When the shearing of Pre-coating Coil plate, due to the effect of shearing force, substrate Bending Deformation, and it is exposed in wet air, at this moment
Coating can generate the small removing in section with substrate due to the impact of shearing force.Substrate loses the protection of paint film, the chemistry in weather
Factor just starts the section that corrosion is stripped, extent of corrosion and speed, single to cease for coating system perspective with paint adhesion
Manner of breathing closes, while also related to coating hydrophobicity.
Because usual colored steel processing or use process in have shearing, cause metal substrate forfeiture paint film protection, section
Paint film tilts or substrate attack degree is accelerated in separation, and in order to delay the corrosion of substrate section, the priming paint needs of coating system have
Superpower adhesive force and salt spray resistance.
Therefore, in order to improve processing trimming and caused by coiled steel plate extent of corrosion, need a kind of new to delay trimming salt fog
The coating system of corrosion, exploitation adhesive force is superpower, the epoxy primer of preferable hydrophobic material.
Summary of the invention
In order to overcome the drawbacks of the prior art, the object of the present invention is to provide a kind of combinations of the winding steel paint base of trimming salt spray resistance
Object.
It is a further object to provide a kind of preparation methods of the winding steel paint base composition of trimming salt spray resistance.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
One aspect of the present invention provides a kind of winding steel paint base composition of trimming salt spray resistance comprising in parts by weight
The following component of meter:
Preferably, the epoxy resin hydrophobic type epoxy resin, solid part are 38~42%；The epoxy resin can guarantee
Coating has good hydrophobicity, superpower adhesive force.
Preferably, the amino resins uses methyl-etherified melamine resin；The hydroxyl of the amino resins and epoxy resin
Base carries out cross-linking reaction, and there are fabulous hardness, flexibility in when solidification.
Preferably, the polyurethane resin is enclosed type resin, and solid part is 68-72%；The polyurethane resin and hydroxyl
Base reacts the coating compactness that can guarantee coating.
The pigment is inorganic pigment.Preferably, the pigment is at least one of barium sulfate, titanium dioxide, strontium chromate.
At least one of the selection of auxiliary anti-settling agent, adhesion promoter, delustering agent.
The anti-settling agent is organobentonite；The adhesion promoter is silanol polymer.The anti-settling agent is organic
Bentonite can form gel in all kinds of organic solvents, resin, have good thickening property, suspension stability, and it is anti-to play pigment
Heavy effect.
The adhesion promoter is silanol polymer, and excellent metal base adhesion can be provided in coil coating,
Catalytic curing enhances the chemical-resistant of paint film.
The delustering agent is common delustering agent in common coil coating, for example, the SYLOID of W. R. Grace & Co
ED3 etc..
The solvent is at least one of dimethylbenzene, propylene glycol methyl ether acetate, butyl glycol ether, methyl ethyl ketone.
Another aspect of the present invention provides a kind of preparation method of the winding steel paint base composition of trimming salt spray resistance,
Itself the following steps are included:
Epoxy resin and pigment are mixed, obtain slurry after grinding；
Amino resins is added in the slurry, mixes, polyurethane resin, auxiliary agent and solvent is added, mixes；Described in acquisition
The winding steel paint base composition of trimming salt spray resistance.
Due to the adoption of the above technical scheme, the present invention has the following advantages and beneficial effects:
The winding steel paint base composition of the trimming salt spray resistance haveing excellent performance of the invention is to select hydrophobic epoxy resin, is dredged
Aqueous good material has outstanding experiment to trimming salt fog performance using suitable adhesion promoter, solidification crosslinking film forming
As a result, effectively delaying trimming extent of corrosion, the service life of colored steel, save the cost expense are increased.
The winding steel paint base composition properties test experiments result of trimming salt spray resistance of the invention: it is cut on coil plating aluminum substrate
After side Neutral Salt Spray Corrosion 500 hours, the non-edge sealing corrosion distance of notch is within 4 millimeters；The volume of trimming salt spray resistance of the invention
Steel paint base composition has good adhesion and excellent resistance to trimming salt fog.
Specific embodiment:
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that the present embodiment is served only for
To further explanation of the invention, it should not be understood as limiting the scope of the invention, the person skilled in the art in the field can
To make some nonessential modifications and adjustment to the present invention according to the content of aforementioned present invention.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006.
Epoxy resin used in following embodiment is by block copolymer composite epoxy resin, solid part is 38~
42%, above-mentioned epoxy resin can guarantee that coating has good hydrophobicity, superpower adhesive force.For example, the three wooden Chemical Co., Ltd.s
609 epoxy resin.
Amino resins used in following embodiment uses methyl-etherified melamine resin, carries out with the hydroxyl of epoxy resin
, there are fabulous hardness, flexibility in cross-linking reaction, when solidification.For example, the CYMEL303 amino resins of Qing Te Chemical Co., Ltd..
Polyurethane resin used in following embodiment is high-intensity resin, and solid part is 70%, above-mentioned polyurethane resin
The coating compactness that can guarantee coating is reacted with hydroxyl.For example, the BIR7500 polyurethane tree of Nippon Paint (China) Co., Ltd.
Rouge.
Anti-settling agent used in following embodiment is organobentonite, and gel can be formed in all kinds of organic solvents, resin,
With good thickening property, suspension stability, it is anti-settling to play the role of pigment.For example, the BENTONE SD of this chemical industry of hamming is organic
Bentonite.
Adhesion promoter used in following embodiment is silanol polymer, and excellent gold can be provided in coil coating
Belong to substrate adhesion, catalytic curing enhances the chemical-resistant of paint film.For example, the adhesion promoter ADP of the modest chemical industry of moral.
Delustering agent used in following embodiment is common delustering agent in common coil coating, for example, Grace
SYLOID ED3 of company etc..
Embodiment 1
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 50 parts of epoxy resin, 23 parts of pigment mixing, grinding；
2) 7 parts of amino resins mixing are added in the slurry, 9 parts of polyurethane resin, 1.5 parts of auxiliary agent and molten is then added
20 parts of agent, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
The winding steel paint base composition of the trimming salt spray resistance manufactured in the present embodiment can be at 216 ± 5 DEG C of PMT metal plate temperature
Solidification, 5 μm of the dry-coated film thickness of this epoxy primer, it is as shown in table 1 that the performance painted under 13 μm of thickness of dry film is scraped in cooperation:
Table 1
Embodiment 2
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 45 parts of epoxy resin, 18 parts of pigment mixing, grinding；
2) in the slurry be added 8 parts of amino resins mixing, then be added 13 parts of polyurethane resin, 1.5 parts of auxiliary agent and
13 parts of solvent, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006, as a result
Ginseng is shown in Table 2:
Table 2
Embodiment 3
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 55 parts of epoxy resin, 28 parts of pigment mixing, grinding；
2) 10 parts of amino resins mixing are added in the slurry, 7 parts of polyurethane resin, 2 parts of auxiliary agent and molten is then added
27 parts of agent, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006, as a result
Ginseng is shown in Table 3:
Table 3
Embodiment 4
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 50 parts of epoxy resin, 25 parts of pigment mixing, grinding；
2) 4 parts of amino resins mixing are added in the slurry, 5 parts of polyurethane resin, 1.5 parts of auxiliary agent and molten is then added
18 parts of agent, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006, as a result
Ginseng is shown in Table 4:
Table 4
Embodiment 5
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 50 parts of epoxy resin, 20 parts of pigment mixing, grinding；
2) 8 parts of amino resins mixing are added in the slurry, 10 parts of polyurethane resin, 1 part of auxiliary agent and molten is then added
22 parts of agent, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006, as a result
Ginseng is shown in Table 5:
Table 5
Embodiment 6
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 51 parts of epoxy resin, 23 parts of pigment mixing, grinding；
2) 6 parts of amino resins mixing are added in the slurry, 9 parts of polyurethane resin, 1.8 parts of auxiliary agent and molten is then added
25 parts of agent, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006, as a result
Ginseng is shown in Table 6:
Table 6
Embodiment 7
The present embodiment provides a kind of preparation methods of the winding steel paint base composition of excellent trimming salt spray resistance, including following step
It is rapid:
1) slurry will be obtained after 45 parts of epoxy resin, 28 parts of pigment mixing, grinding；
2) 7 parts of amino resins mixing are added in the slurry, 9 parts of polyurethane resin, 1 part of auxiliary agent and solvent is then added
15 parts, the winding steel paint base composition of the trimming salt spray resistance is obtained after mixing.
Adhere to cross cut test, resistance to neutral salt spray notch test in test method, sees national standard GB/T13448-2006, as a result
Ginseng is shown in Table 7:
Table 7
The winding steel paint base composition of the trimming salt spray resistance prepared by the present invention haveing excellent performance is to select hydrophobic asphalt mixtures modified by epoxy resin
Rouge, the good material of hydrophobicity, using suitable adhesion promoter, solidification crosslinking film forming has trimming salt fog performance outstanding
Experimental result, effectively delay trimming extent of corrosion, increase the service life of colored steel, save the cost expense.
The winding steel paint base composition properties test experiments result of trimming salt spray resistance of the invention: it is cut on coil plating aluminum substrate
After side Neutral Salt Spray Corrosion 500 hours, the non-edge sealing corrosion distance of notch is within 4 millimeters；The volume of trimming salt spray resistance of the invention
Steel paint base composition has good adhesion and excellent resistance to trimming salt fog.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, the embodiment that the present invention is enumerated can not give thoroughly all embodiments
To the greatest extent, all to belong to obvious changes or variations that technical solution of the present invention is extended out still in protection model of the invention
The column enclosed.All documents referred in the present invention are incorporated herein by reference, independent just as a document
It is cited as with reference to such.
Claims (10)
1. a kind of winding steel paint base composition of trimming salt spray resistance, which is characterized in that including following component according to parts by weight:
2. the winding steel paint base composition of trimming salt spray resistance as described in claim 1, which is characterized in that the epoxy resin uses
Hydrophobic type epoxy resin, solid content are 38~42%.
3. the winding steel paint base composition of trimming salt spray resistance as described in claim 1, which is characterized in that the amino resins uses
Methyl-etherified melamine resin.
4. the winding steel paint base composition of trimming salt spray resistance as described in claim 1, which is characterized in that the polyurethane resin is
Enclosed type resin, solid part are 68-72%.
5. the winding steel paint base composition of trimming salt spray resistance as described in claim 1, which is characterized in that the pigment is inorganic face
Material.
6. the winding steel paint base composition of trimming salt spray resistance as claimed in claim 5, which is characterized in that the pigment is sulfuric acid
At least one of barium, titanium dioxide, strontium chromate.
7. the winding steel paint base composition of trimming salt spray resistance as described in claim 1, which is characterized in that the selection of auxiliary is anti-settling
At least one of agent, adhesion promoter, delustering agent.
8. the winding steel paint base composition of trimming salt spray resistance as claimed in claim 7, which is characterized in that the anti-settling agent is organic
Bentonite；The adhesion promoter is silanol polymer.
9. the winding steel paint base composition of trimming salt spray resistance as described in claim 1, it is characterised in that: the solvent is diformazan
At least one of benzene, propylene glycol methyl ether acetate, butyl glycol ether, methyl ethyl ketone.
10. a kind of preparation method of such as winding steel paint base composition of trimming salt spray resistance according to any one of claims 1 to 9,
It is characterized by comprising following steps:
Epoxy resin and pigment are mixed, obtain slurry after grinding；
Amino resins is added in the slurry, mixes, polyurethane resin, auxiliary agent and solvent is added, mixes；Obtain the trimming
The winding steel paint base composition of salt spray resistance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747242.5A CN109111820A (en) | 2018-07-09 | 2018-07-09 | Winding steel paint base composition of trimming salt spray resistance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810747242.5A CN109111820A (en) | 2018-07-09 | 2018-07-09 | Winding steel paint base composition of trimming salt spray resistance and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111534191A (en) * | 2020-04-17 | 2020-08-14 | 立邦工业涂料(上海)有限公司 | A salt spray-resistant coil primer for household appliances |
| CN112300672A (en) * | 2020-11-18 | 2021-02-02 | 上海华谊涂料有限公司 | Chromium-free antirust coil steel coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473896A (en) * | 2003-08-08 | 2004-02-11 | 中国化工建设总公司常州涂料化工研究 | Priming paint for pre-coating coiled material |
| CN104194561A (en) * | 2014-08-19 | 2014-12-10 | 河南三元科技化工有限公司 | Thin-type salt-fog-resistant automobile antirust epoxy primer and preparation method thereof |
-
2018
- 2018-07-09 CN CN201810747242.5A patent/CN109111820A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473896A (en) * | 2003-08-08 | 2004-02-11 | 中国化工建设总公司常州涂料化工研究 | Priming paint for pre-coating coiled material |
| CN104194561A (en) * | 2014-08-19 | 2014-12-10 | 河南三元科技化工有限公司 | Thin-type salt-fog-resistant automobile antirust epoxy primer and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111534191A (en) * | 2020-04-17 | 2020-08-14 | 立邦工业涂料(上海)有限公司 | A salt spray-resistant coil primer for household appliances |
| CN112300672A (en) * | 2020-11-18 | 2021-02-02 | 上海华谊涂料有限公司 | Chromium-free antirust coil steel coating and preparation method thereof |
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Application publication date: 20190101 |