CN103937369B - A kind of environmentally friendly car parts protective system and preparation method thereof - Google Patents
A kind of environmentally friendly car parts protective system and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of environmentally friendly car parts protective system and preparation method thereof.Environmentally friendly car parts protective system comprises component A and B component, and wherein, component A comprises epoxy resin, color stuffing, helps and organic solvent, and B component comprises polyamide resin, silicone compounds, tertiary amines curing catalyst and organic solvent.Protective system construction solid content high (>=60wt%) of the present invention, during construction, VOC discharge is low, has excellent workability, paint film property.This coating can be used for the corrosion protection coating comprising the automobile metal type components such as wheel box, chassis member, vehicle bridge and other foundry goods, coating is simply supporting, require low to the pre-treatment of ground, without the need to sandblasting ball blast and bonderizing, only need cleaning and degreasing can ensure good paint film property.The preparation technology of environmentally friendly car parts protective system of the present invention is simple, energy-conserving and environment-protective, and the product performance of preparation are stablized.
Description
Technical field
The present invention relates to a kind of protective system, particularly a kind of environment-friendly type high solid protective system being applicable to coating automobile parts and preparation method thereof.
Background technology
The metalwork blank of automobile component mostly is hot-rolled sheet and foundry goods, specifically comprises wheel box, chassis member, vehicle bridge and other foundry goods etc., and adopt shot-peening or sandblasting before shaping or before application, acidic treatment is eliminated gradually more.Disk-like accessory application at the bottom of developed country generally adopts phosphatization, ability cathode electrophoresis or powder coating process, and large assembly is generally assemble after part line carries out electrophoresis or powder coating again, is spraying bottom surface or self-vulcanizing finish paint as required to assembly.China's coating automobile parts, because industrial scale is general less, relatively backward generally, the level being mainly reflected in the aspects such as technique and the coated material that uses is not high.
Corrosion-resistant epoxy paint is widely used in the heavy antisepsis fields such as boats and ships, inner and outer walls of pipeline, mine steelframe, aircraft, bullet train.In order to obtain better anticorrosion ability, general interpolation in coating contains chromium rust-stabilising pigment, as adopted zinc yellow, chrome yellow, strontium yellow, phosphorus zinc chromate etc. as rust-stabilising pigment, chromium metal is harmful, especially sexavalent chrome has carinogenicity, between the usage period after the preparation of coating, construction and film forming, serious harm is caused to workmen and environment.For this reason, develop the protective system of some Chrome-frees both at home and abroad successively, CN101260252A as open in Chinese patent application discloses a kind of chromium-free Dyclo paint, using flake zinc powder and aluminium powder as rust-stabilising pigment.In addition on the one hand, since the nineties in 20th century, countries in the world start to require more and more higher to the feature of environmental protection of car paint." solvent steering order---painting dressing automobiles process discharge limit " that Europe proposes for 1994 coaling production line for cars organic solvent emission amount (comprising priming paint, floating coating, finish paint application) must not higher than 45g/m with regard to clear stipulaties
2; Germany is more strict to the emission request of volatile organic matter, and emission standard must not be higher than 35g/m
2.Therefore, a kind of construction of exploitation is solid containing heavy metals such as high, VOC discharge is relatively low, not leaded, chromium, and the protective system being suitable for automobile component (rolling plate and foundry goods class) application is significant.
Summary of the invention
The object of the present invention is to provide a kind of environment-friendly type high solid protective system being applicable to coating automobile parts and preparation method thereof.
The technical solution used in the present invention is:
A kind of environmentally friendly car parts protective system, comprise component A and B component, wherein, component A comprises the organic solvent of epoxy resin 20 ~ 40wt%, color stuffing 30 ~ 60wt%, auxiliary agent 2 ~ 6wt% and surplus, and B component comprises the organic solvent of polyamide resin 40 ~ 60wt%, silicone compounds 2 ~ 10wt%, tertiary amines curing catalyst 1 ~ 5wt% and surplus.
Preferably, the weight ratio of component A and B component is 3 ~ 6:1.
Preferably, described epoxy resin is epoxy resin I and the epoxy resin II of weight ratio 4 ~ 40:1, and wherein, the epoxy equivalent (weight) of epoxy resin I is 0 ~ 1000, and the epoxy equivalent (weight) of epoxy resin II is 1000 ~ 5000.
Preferably, described silicone compounds is at least one in original quanmethyl silicate, tetraethyl orthosilicate, orthosilicic acid four butyl ester and oligomer thereof, vinyltriethoxysilane, γ-(glycidoxy) propyl-triethoxysilicane, γ aminopropyltriethoxy silane, N-amino-ethyl-3-aminopropyl triethoxysilane, r-chloropropyl trimethoxyl silane, hexamethyldisiloxane, hexamethyldisilazane, tetramethyl divinyl siloxanes, hydroxyl-terminated injecting two methyl siloxane.
Preferred, described silicone compounds is γ aminopropyltriethoxy silane and/or N-amino-ethyl-3-aminopropyl triethoxysilane.
Preferably, described tertiary amines curing catalyst is at least one in DMP-10, DMP-20, DMP-30, benzyldimethylamine, glyoxal ethyline, 2-ethyl-4-methylimidazole.
Preferably, described color stuffing is the mixture of tinting pigment, pigment extender and rust-stabilising pigment.
Preferably, described auxiliary agent comprises defoamer, flow agent, dispersion agent, anti-sagging agent.
Preferably, described anti-sagging agent is organobentonite and/or aerosil.
The preparation method of environmentally friendly car parts protective system, comprises the following steps:
1) formulation components A:
The epoxy resin of formula ratio 60 ~ 80wt%, dispersion agent, defoamer are mixed, add anti-sagging agent and color stuffing again, mix, 500 ~ 1000rpm stirs lower after pre-dispersed 30 ~ 60 minutes, joins in sand mill, be ground to fineness≤15 μm, filter, add remaining epoxy resin, flow agent and solvent, stir, filter, obtain component A;
2) part B is prepared:
Add in container by polyamide resin, silicone compounds, promotor and solvent successively by formula ratio, 300 ~ 600rpm stirs 30 ~ 60 minutes, filters, obtains component B;
3) by proportioning, component A and B component are mixed before using, obtain environmentally friendly car parts protective system;
The formula of described protective system is described above.
The invention has the beneficial effects as follows:
Protective system construction solid content high (>=60wt%) of the present invention, during construction, VOC discharge is low, has excellent workability, paint film property.This coating can be used for the corrosion protection coating comprising the automobile metal type components such as wheel box, chassis member, vehicle bridge and other foundry goods, coating is simply supporting, require low to the pre-treatment of ground, without the need to sandblasting ball blast and bonderizing, only need cleaning and degreasing can ensure good paint film property.
The preparation technology of environmentally friendly car parts protective system of the present invention is simple, energy-conserving and environment-protective, and the product performance of preparation are stablized.
Embodiment
A kind of environmentally friendly car parts protective system, comprise component A and B component, wherein, component A comprises the organic solvent of epoxy resin 20 ~ 40wt%, color stuffing 30 ~ 60wt%, auxiliary agent 2 ~ 6wt% and surplus, and B component comprises the organic solvent of polyamide resin 40 ~ 60wt%, silicone compounds 2 ~ 10wt%, tertiary amines curing catalyst 1 ~ 5wt% and surplus.
Preferably, the weight ratio of component A and B component is 3 ~ 6:1.
Preferably, described epoxy resin is epoxy resin I and the epoxy resin II of weight ratio 4 ~ 40:1, wherein, the epoxy equivalent (weight) of epoxy resin I is 0 ~ 1000, preferred, the epoxy equivalent (weight) of epoxy resin I is 200 ~ 800, the available commercialization trade mark has the DER671 of DOW Chemical, DER662, DER664, DER640, the Epikote834 of Shell Chemical, Epikote220, Epikote1001, Epikote1002, the R140 of Mitsui Chemicals, R144, the Epiclon860 of DIC, Epiclon1050, Epiclon2055, Epiclon3050, Epiclon4050 etc., the epoxy equivalent (weight) of epoxy resin II is 1000 ~ 5000, preferred, the epoxy equivalent (weight) of epoxy resin II is 2000 ~ 4000, the available commercialization trade mark has DER667, DER668, DER669 of DOW Chemical, Epikote1007, Epikote1009, Epikote2009 of Shell Chemical, R307, R309 of Mitsui Chemicals, Epiclon7050, Epiclon9055 etc. of DIC.
Preferably, described silicone compounds is at least one in original quanmethyl silicate, tetraethyl orthosilicate, orthosilicic acid four butyl ester and oligomer thereof, vinyltriethoxysilane, γ-(glycidoxy) propyl-triethoxysilicane, γ aminopropyltriethoxy silane, N-amino-ethyl-3-aminopropyl triethoxysilane, r-chloropropyl trimethoxyl silane, hexamethyldisiloxane, hexamethyldisilazane, tetramethyl divinyl siloxanes, hydroxyl-terminated injecting two methyl siloxane.Preferred, described silicone compounds is γ aminopropyltriethoxy silane and/or N-amino-ethyl-3-aminopropyl triethoxysilane.
Preferably, described tertiary amines curing catalyst is at least one in DMP-10, DMP-20, DMP-30, benzyldimethylamine, glyoxal ethyline, 2-ethyl-4-methylimidazole.
Preferably, organic solvent is at least one in alcohol, aromatic hydrocarbon, ketone, alcohol ether, ester.Preferred, be dimethylbenzene and/or butanols.
Preferably, described color stuffing is the mixture of tinting pigment, pigment extender and rust-stabilising pigment.Preferably, described tinting pigment be that titanium dioxide, carbon black, phthalocyanine blue, phthalocyanine green, iron oxide black, red iron oxide, iron oxide yellow, permanent bordeaux, quinacridone are red, at least one in permanent violet; Described pigment extender is at least one in process white, calcium carbonate, talcum powder, kaolin; Described rust-stabilising pigment is at least one in aluminium triphosphate, zinc phosphate, modified zinc phosphate, superfine calcium phosphate, calcium iron powder, barium metaborate.
Preferably, described auxiliary agent comprises defoamer, flow agent, dispersion agent, anti-sagging agent.
Preferably, described anti-sagging agent is organobentonite and/or aerosil.
The preparation method of environmentally friendly car parts protective system, comprises the following steps:
1) formulation components A:
The epoxy resin of formula ratio 60 ~ 80wt%, dispersion agent, defoamer are mixed, add anti-sagging agent and color stuffing again, mix, 500 ~ 1000rpm stirs lower after pre-dispersed 30 ~ 60 minutes, joins in sand mill, be ground to fineness≤15 μm, filter, add remaining epoxy resin, flow agent and solvent, stir, filter, obtain component A;
2) part B is prepared:
Add in container by polyamide resin, silicone compounds, promotor and solvent successively by formula ratio, 300 ~ 600rpm stirs 30 ~ 60 minutes, filters, obtains component B;
3) by proportioning, component A and B component are mixed before using, obtain environmentally friendly car parts protective system;
The formula of described protective system is described above.
Preferably, step 1), adds before and after grinding in two batches by epoxy resin, and amount of grinding is reduced on the basis ensureing dispersive ability, improves mill efficiency, meanwhile, is ejected by mill base residual in equipment cavity after being convenient to grinding.
Below in conjunction with specific embodiment, the useful technique effect that the preferred embodiment of the invention and its produce is explained further, but, it will be appreciated by those skilled in the art that the present invention is not limited to the content of these concrete embodiments and embodiment.In an embodiment, unless otherwise clear and definite instruction, otherwise " part " refers to " weight part ", and " ratio " refers to " weight ratio ", and " % " refers to " weight percent ".
embodiment 1
A kind of environmentally friendly car parts protective system, comprise component A host and B component solidifying agent, component A formula is as follows:
Weight of material per-cent/%
DER67124.0，
DER6672.0，
Dispersant B YKANTI-TERRA-U2.0,
Organobentonite 0.5,
Aerosil 0.5,
Carbon black 2.5,
Zinc phosphate 10.5,
Aluminium triphosphate 8.5,
Process white 23.0,
Defoamer BYK-0540.3,
Flow agent BYK-358N0.5,
Dimethylbenzene 18,
Butanols 7.7.
B component formula is as follows:
Weight of material per-cent/%
Polyamide resin (amine value 155) 46.0,
DMP-303.0，
Aminopropyl triethoxysilane 3.0,
Dimethylbenzene 38.0,
Butanols 10.0.
The preparation technology of coating is as follows:
1) formulation components A
First master grind: 14.6 parts of epoxy resin DER671,1 part of epoxy resin DER667, dispersion agent, defoamer are mixed, add after the organobentonite of sag prevention, aerosil and color stuffing stir again, 1000rpm stirs after pre-dispersed 30 minutes, join in sand mill, be ground to fineness≤15 μm, filter, for subsequent use; Ground mill base is added paint mixing tank, and add remaining epoxy resin DER671, DER667 in component A, flow agent and mixed solvent, stir, and filters, packs to obtain component A;
2) formulation components B
Add in container by each composition of B component successively by formula ratio, 600rpm stirs 30 minutes, filters and packages and obtains B component;
3) before using, component A and B component are mixed according to the weight ratio of 4:1, obtain protective system.
embodiment 2
A kind of environmentally friendly car parts protective system, comprise component A and B component, component A formula is as follows:
Weight of material per-cent/%
Epikote83422.0，
Epikote10095.0，
Dispersion agent DISPERBYK-1102.0,
Organobentonite 0.5,
Aerosil 0.5,
Carbon black 2.5,
Rutile type Titanium Dioxide 15.0,
Zinc phosphate 10.5,
Aluminium triphosphate 8.5,
Process white 10.0,
Defoamer BYK-0520.3,
Flow agent BYK-3200.5,
Dimethylbenzene 16,
Butanols 6.7.
B component formula is as follows:
Weight of material per-cent/%
Polyamide resin (amine value 180) 46.0,
Altax P-301.0,
N-amino-ethyl-aminopropyl triethoxysilane 4.0,
Dimethylbenzene 38.0,
Butanols 11.0.
The preparation technology of coating is as follows:
1) formulation components A
First master grind: 17 parts of epoxy resin Epikote834,2 parts of epoxy resin Epikote1009, dispersion agent, defoamers are mixed, add after the organobentonite of sag prevention, aerosil and color stuffing stir again, 1000rpm stirs after pre-dispersed 30 minutes, join in sand mill, be ground to fineness≤15um, filter, for subsequent use; Ground mill base is added paint mixing tank, and add remaining epoxy resin Epikote834, Epikote1009 in component A, flow agent and mixed solvent, stir, and filters, packs to obtain component A;
2) formulation components B
Add in container by each composition of B component successively by formula ratio, 300rpm stirs 1 hour, filters and packages and obtains B component;
3) before using, component A and B component are mixed according to the weight ratio of 5:1, obtain protective system.
embodiment 3
A kind of environmentally friendly car parts protective system, comprise component A and B component, component A formula is as follows:
Weight of material per-cent/%
R14032.0，
R3071.0，
Dispersion agent DISPERBYK-1422.0,
Organobentonite 0.5,
Aerosil 0.5,
Carbon black 1.0,
Rutile type Titanium Dioxide 15.0,
Permanent bordeaux 0.5,
Phthalocyanine blue 0.5,
Zinc phosphate 10.5,
Aluminium triphosphate 8.5,
Process white 5.0,
Defoamer Surfynol104E0.3,
Flow agent BYK-3200.5,
Dimethylbenzene 15.5,
Butanols 6.7.
B component formula is as follows:
Weight of material per-cent/%
Polyamide resin (amine value 120) 50.0,
Promotor dimethyl benzylamine 3.0,
N-octyl Trimethoxy silane 7.0,
Dimethylbenzene 30.0,
Butanols 10.0.
The preparation technology of coating is as follows:
1) formulation components A
First master grind: 23 parts of epoxy resin R140,1 part of epoxy resin R307, dispersion agent, defoamer are mixed, add after the organobentonite of sag prevention, aerosil and color stuffing stir again, 1000rpm stirs after pre-dispersed 30 minutes, join in sand mill, be ground to fineness≤15 μm, filter, for subsequent use; Ground mill base is added paint mixing tank, and add remaining epoxy resin R140 in component A, flow agent and mixed solvent, stir, and filters, packs to obtain component A;
2) formulation components B
Add in container by each composition of B component successively by formula ratio, 600rpm stirs 30 minutes, filters and packages and obtains B component;
3) before using, component A and B component are mixed according to the weight ratio of 6:1, obtain protective system.
embodiment 4
A kind of environmentally friendly car parts protective system, comprise component A and B component, component A formula is as follows:
Weight of material per-cent/%
Epiclon86018.0，
Epiclon70502.0，
Dispersion agent DISPERBYK-1421.0,
Organobentonite 0.3,
Aerosil 0.3,
Carbon black 2.0,
Rutile type Titanium Dioxide 38.5,
Permanent bordeaux 1.5,
Phthalocyanine blue 1.5,
Aluminium triphosphate 10.5,
Process white 6.0,
Defoamer Surfynol104E0.2,
Flow agent Cigna WE-D8110.2,
Dimethylbenzene 10,
Butanols 8.
B component formula is as follows:
Weight of material per-cent/%
Polyamide resin (amine value 120) 60.0,
Promotor dimethyl benzylamine 5.0,
N-octyl Trimethoxy silane 10.0,
Dimethylbenzene 18.0,
Butanols 7.0.
The preparation technology of coating is as follows:
1) formulation components A
First master grind: 15 parts of epoxy resin Epiclon860,1 part of epoxy resin Epiclon7050, dispersion agent, defoamer are mixed, add after the organobentonite of sag prevention, aerosil and color stuffing stir again, 1000rpm stirs after pre-dispersed 30 minutes, join in sand mill, be ground to fineness≤15 μm, filter, for subsequent use; Ground mill base is added paint mixing tank, and add remaining epoxy resin Epiclon860, Epiclon7050 in component A, flow agent and mixed solvent, stir, and filters, packs to obtain component A;
2) formulation components B
Add in container by each composition of B component successively by formula ratio, 600rpm stirs 30 minutes, filters and packages and obtains B component;
3) before using, component A and B component are mixed according to the weight ratio of 3:1, obtain protective system.
embodiment 5
A kind of environmentally friendly car parts protective system, comprise component A and B component, component A formula is as follows:
Weight of material per-cent/%
DER64038.0，
Epikote20092.0，
Dispersion agent DISPERBYK-1422.5,
Organobentonite 1.5,
Aerosil 0.3,
Carbon black 1.5,
Rutile type Titanium Dioxide 9.0,
Zinc phosphate 8.0,
Aluminium triphosphate 4.5,
Process white 7.0,
Defoamer BYK-0540.9,
Flow agent Cigna WE-D8110.8,
Dimethylbenzene 14,
Butanols 10.
B component formula is as follows:
Weight of material per-cent/%
Polyamide resin (amine value 120) 40.0,
Promotor dimethyl benzylamine 2.0,
N-octyl Trimethoxy silane 2.0,
Dimethylbenzene 40.0,
Butanols 16.0.
The preparation technology of coating is as follows:
1) formulation components A
First master grind: 30 parts of epoxy resin DER640,2 parts of epoxy resin Epikote2009, dispersion agent, defoamers are mixed, add after the organobentonite of sag prevention, aerosil and color stuffing stir again, 800rpm stirs after pre-dispersed 40 minutes, join in sand mill, be ground to fineness≤15 μm, filter, for subsequent use; Ground mill base is added paint mixing tank, and add remaining epoxy resin DER640 in component A, flow agent and mixed solvent, stir, and filters, packs to obtain component A;
2) formulation components B
Add in container by each composition of B component successively by formula ratio, 500rpm stirs 30 minutes, filters and packages and obtains B component;
3) before using, component A and B component are mixed according to the weight ratio of 6:1, obtain protective system.
comparative example
A kind of environmentally friendly car parts protective system, comprise component A and B component, component A formula is as follows:
Weight of material per-cent/%
Epikote83422.0，
Epikote10095.0，
Dispersion agent DISPERBYK-1102.0,
Organobentonite 0.5,
Aerosil 0.5,
Carbon black 2.5,
Rutile type Titanium Dioxide 15.0,
Zinc phosphate 10.5,
Aluminium triphosphate 8.5,
Process white 10.0,
Defoamer BYK-0520.3,
Aminopropyl triethoxysilane 3.0,
Flow agent BYK-3200.5,
Dimethylbenzene 13,
Butanols 6.7.
B component formula is as follows:
Weight of material per-cent/%
Polyamide resin (amine value 180) 46.0,
Altax P-303.0,
Dimethylbenzene 40.0,
Butanols 11.0.
Component A and B component, with embodiment 2, mix according to the weight ratio of 5:1, obtain protective system by the preparation technology of coating.
Adopt the protective system of embodiment 1 ~ 3 and comparative example 1 preparation, use regular air spraying to prepare model, ground is cold-rolled steel sheet, and cleaning by degreasing is anticorrosion with painting coating after drying.Detect according to the performance of national standard method to formed paint film, result is as follows:
As seen from the above table, coupling agent silicone compounds is directly added in component A host by comparative example, because coupling agent has higher reactive behavior, operability is not good, component A thickening is caused even to there is the phenomenon of gel on the one hand, cause the consumption of coupling agent must control at smaller category on the other hand, otherwise easier gel.Silicone compounds joins in B component solidifying agent and then well solves the problems referred to above by the present invention.
Protective system construction solid content high (>=60wt%) of the present invention, during construction, VOC discharge is low, has excellent workability, paint film property.This coating requires low to the pre-treatment of ground, without the need to sandblasting ball blast and bonderizing, only needs cleaning and degreasing can ensure good paint film property.
Claims (9)
1. an environmentally friendly car parts protective system, comprise component A and B component, wherein, component A comprises the organic solvent of epoxy resin 20 ~ 40wt%, color stuffing 30 ~ 60wt%, auxiliary agent 2 ~ 6wt% and surplus, and B component comprises the organic solvent of polyamide resin 40 ~ 60wt%, silicone compounds 2 ~ 10wt%, tertiary amines curing catalyst 1 ~ 5wt% and surplus; Described epoxy resin is epoxy resin I and the epoxy resin II of weight ratio 4 ~ 40:1, and wherein, the epoxy equivalent (weight) of epoxy resin I is 200 ~ 800, and the epoxy equivalent (weight) of epoxy resin II is 1000 ~ 5000.
2. protective system according to claim 1, is characterized in that: the weight ratio of component A and B component is 3 ~ 6:1.
3. protective system according to claim 1, is characterized in that: described silicone compounds is at least one in original quanmethyl silicate, tetraethyl orthosilicate, orthosilicic acid four butyl ester and oligomer thereof, vinyltriethoxysilane, γ-(glycidoxy) propyl-triethoxysilicane, γ aminopropyltriethoxy silane, N-amino-ethyl-3-aminopropyl triethoxysilane, r-chloropropyl trimethoxyl silane, hexamethyldisiloxane, hexamethyldisilazane, tetramethyl divinyl siloxanes, hydroxyl-terminated injecting two methyl siloxane.
4. protective system according to claim 3, is characterized in that: described silicone compounds is γ aminopropyltriethoxy silane and/or N-amino-ethyl-3-aminopropyl triethoxysilane.
5. protective system according to claim 1, is characterized in that: described tertiary amines curing catalyst is at least one in DMP-10, DMP-20, DMP-30, benzyldimethylamine, glyoxal ethyline, 2-ethyl-4-methylimidazole.
6. protective system according to claim 1, is characterized in that: described color stuffing is the mixture of tinting pigment, pigment extender and rust-stabilising pigment.
7. protective system according to claim 1, is characterized in that: described auxiliary agent comprises defoamer, flow agent, dispersion agent, anti-sagging agent.
8. protective system according to claim 7, is characterized in that: described anti-sagging agent is organobentonite and/or aerosil.
9. the preparation method of environmentally friendly car parts protective system, comprises the following steps:
1) formulation components A:
The epoxy resin of formula ratio 60 ~ 80wt%, dispersion agent, defoamer are mixed, add anti-sagging agent and color stuffing again, mix, 500 ~ 1000rpm stirs lower after pre-dispersed 30 ~ 60 minutes, joins in sand mill, be ground to fineness≤15 μm, filter, add remaining epoxy resin, flow agent and solvent, stir, filter, obtain component A;
2) part B is prepared:
Add in container by polyamide resin, silicone compounds, promotor and solvent successively by formula ratio, 300 ~ 600rpm stirs 30 ~ 60 minutes, filters, obtains component B;
3) by proportioning, component A and B component are mixed before using, obtain environmentally friendly car parts protective system;
Described protective system is as described in claim 1 ~ 8 any one.
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| CN107267003A (en) * | 2017-08-01 | 2017-10-20 | 广东鑫皇冠新材料有限公司 | Vehicle bridge coating of waterborne organic silicon modified acroleic acid bottom surface unification and preparation method thereof |
| CN109868029A (en) * | 2017-12-04 | 2019-06-11 | 海洋化工研究院有限公司 | Organic protection coating for reduction process aluminum alloy surface |
| CN108976984A (en) * | 2018-06-26 | 2018-12-11 | 阜南县星光工艺品有限公司 | A kind of bamboo handicraft product environmental protection paint |
| WO2020056542A1 (en) * | 2018-09-17 | 2020-03-26 | Henkel Ag & Co. Kgaa | Two-part coating composition |
| CN109593432A (en) * | 2018-11-24 | 2019-04-09 | 上海凯虹特种材料科技有限公司 | Iron oxide red epoxy aluminium antirust paint |
| CN110760916B (en) * | 2019-11-18 | 2022-04-05 | 和县科嘉阀门铸造有限公司 | Method for improving corrosion resistance of magnesium alloy valve |
| CN111471372A (en) * | 2020-05-15 | 2020-07-31 | 晋江市中德顺钢结构件工程发展有限公司 | Corrosion-resistant counterweight block casting and manufacturing method thereof |
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| US20040099845A1 (en) * | 2002-10-10 | 2004-05-27 | Simendinger William H. | Anti-corrosion composition |
| EP1587885A2 (en) * | 2003-01-17 | 2005-10-26 | University of Missouri Curators, Office of Tech. & Spec. Projects | Corrosion resistant coatings containing carbon pigments |
| CN101386767A (en) * | 2007-09-14 | 2009-03-18 | 中涂化工（上海）有限公司 | High solid solvent type epoxy varnish anti-corrosion paint |
| CN101372601B (en) * | 2008-10-17 | 2011-09-28 | 洛阳七维防腐工程材料有限公司 | Oil resistant (solvent), heatproof static conducting anti-corrosive paint and preparation thereof |
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