News Details
Flexible latex paint crosslinking agent
2017-6-15 12:00:47
Flexible latex paint crosslinking agent
In order to improve the stain resistance of elastic latex coating, it is mainly done by selecting the variety of emulsion and adjusting the formulation of the coating and the reasonable coating design.
(1) surface self-crosslinking lotion. Introduced in the elastic emulsion crosslinking agent, when the elastic latex paint dry film, through crosslinking reaction, forming a certain surface crosslinking density, improve surface Tg values, basic does not affect the elasticity of the film, and improved the hardness, so as to improve the stain resistance of the coating.
(2) nuclear - shell emulsion polymerization flexible emulsion. And common core - shell emulsion on the contrary, the elastic core - shell emulsion polymerization, the nuclear for soft monomer, shell as hard monomer, soft core mainly provide flexibility, crust is mainly to improve surface Tg values, improving the contamination resistance of coating. There is also a combination of surface self-crosslinking and nuclee-shell emulsion polymerization to produce elastic lotions.
(3) silicone modified elastic emulsion. It is reported that the former results are superior to the latter by means of preemulsifying continuous addition and seed polymerization of organic silicone modified elastic emulsion.
(4) water-based polyurethane elastic lotion. The synthetic polyurethane elastic emulsion can be synthesized by direct dispersion of prepolymer.
(5) change lotion to hydrophilic. It is reported that the surface of the coating is moderate with hydrophilic, which is helpful to improve the stain resistance. Reason: as a result of the hydrophilic group abhorred oily, oil or grease dirt even attached to the surface of a coating, also hard to migrate to the inside coating permeability, only temporary pollution formation, under the rain erosion, dirt will as the rain washed away, thus improve the fouling resistance.
(6) adjust the formulation to improve the stain resistance.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
(7) in addition to the flexible emulsion, other than the elastic lotion, in addition to the elastic lotion, it is put into other kinds of high hardness lotion; You don't have to be a film agent; It can improve the stain resistance by adding special methods such as a special agent. Besides, the proper coating design and coating operation are also important to the cleaning of the coating.
At present, the transparent shading system for water system in the market, mainly has the acid dye and the metal complexation to find the two big system. Acid dyestuff tends to react with weak alkaline water-based coating and fade easily.
The metallic complex pigment in water-based color is not completely soluble in the water system, but a stable and dispersed state.
Industry experts point out that the color pulp is also a major product in the water-based coating system. With the water of coating, ability to match with water-based coating the color of future development space is very big. The water-based transparent pulp is mainly used for wood coloring and the paint of premium cars.
After using the transparent paste, the wood will show the wood grain and upgrade the wood level. It can improve the effect of automobile coatings in automotive coatings with aluminum silver pulp and pearl-light paint. Solid colored water slurry in waterborne industrial coatings tinting system the most widely application scope, its performance is good or bad with paint itself the light fastness, weather resistance, chemical resistance.
As the quantity of water-based coating is increasing in the future, the water-based coloring system will be more mature, which can provide more individualized solution for downstream users.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
In order to improve the stain resistance of elastic latex coating, it is mainly done by selecting the variety of emulsion and adjusting the formulation of the coating and the reasonable coating design.
(1) surface self-crosslinking lotion. Introduced in the elastic emulsion crosslinking agent, when the elastic latex paint dry film, through crosslinking reaction, forming a certain surface crosslinking density, improve surface Tg values, basic does not affect the elasticity of the film, and improved the hardness, so as to improve the stain resistance of the coating.
(2) nuclear - shell emulsion polymerization flexible emulsion. And common core - shell emulsion on the contrary, the elastic core - shell emulsion polymerization, the nuclear for soft monomer, shell as hard monomer, soft core mainly provide flexibility, crust is mainly to improve surface Tg values, improving the contamination resistance of coating. There is also a combination of surface self-crosslinking and nuclee-shell emulsion polymerization to produce elastic lotions.
(3) silicone modified elastic emulsion. It is reported that the former results are superior to the latter by means of preemulsifying continuous addition and seed polymerization of organic silicone modified elastic emulsion.
(4) water-based polyurethane elastic lotion. The synthetic polyurethane elastic emulsion can be synthesized by direct dispersion of prepolymer.
(5) change lotion to hydrophilic. It is reported that the surface of the coating is moderate with hydrophilic, which is helpful to improve the stain resistance. Reason: as a result of the hydrophilic group abhorred oily, oil or grease dirt even attached to the surface of a coating, also hard to migrate to the inside coating permeability, only temporary pollution formation, under the rain erosion, dirt will as the rain washed away, thus improve the fouling resistance.
(6) adjust the formulation to improve the stain resistance.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
(7) in addition to the flexible emulsion, other than the elastic lotion, in addition to the elastic lotion, it is put into other kinds of high hardness lotion; You don't have to be a film agent; It can improve the stain resistance by adding special methods such as a special agent. Besides, the proper coating design and coating operation are also important to the cleaning of the coating.
At present, the transparent shading system for water system in the market, mainly has the acid dye and the metal complexation to find the two big system. Acid dyestuff tends to react with weak alkaline water-based coating and fade easily.
The metallic complex pigment in water-based color is not completely soluble in the water system, but a stable and dispersed state.
Industry experts point out that the color pulp is also a major product in the water-based coating system. With the water of coating, ability to match with water-based coating the color of future development space is very big. The water-based transparent pulp is mainly used for wood coloring and the paint of premium cars.
After using the transparent paste, the wood will show the wood grain and upgrade the wood level. It can improve the effect of automobile coatings in automotive coatings with aluminum silver pulp and pearl-light paint. Solid colored water slurry in waterborne industrial coatings tinting system the most widely application scope, its performance is good or bad with paint itself the light fastness, weather resistance, chemical resistance.
As the quantity of water-based coating is increasing in the future, the water-based coloring system will be more mature, which can provide more individualized solution for downstream users.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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