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The Gr modified AR coating is used crosslinking agent
2017-7-4 23:48:54
The Gr modified AR coating is used crosslinking agent
Coating of environmental performance test data shows that after adding Gr, TVOC content in 55 minutes from 9.999 mg/m3 rapidly decreased to 0.028 mg/m3, 60 min after its concentration finally stabilized at about 0.120 mg/m3, is 1/5 of the content of GB 50096-50096 limit.
At the same time, HCHO fell from 1.981 mg/m3 in 50 min to 0.028 mg/m3, and after 105 min, HCHO concentration was finally stable at 0.002 mg/m3, which was 1/40 of GB/T 16127-1996.
Coating after 3 h crosslinking TVOC and experiment content is far lower than the national limit standard, explain Gr modified AR coating is a kind of environmental protection and low pollution coatings is better than that of AR coating modified by SiO2 (after crosslinking free experiment content is 0.015 g/kg) [8], after 50 min to release a quantity to gradually stabilized, with modified graphene is associated with the three-dimensional structure of matrix resin to form.
In order to validate the results of orthogonal test selection formula, selection in the mechanical properties of well test recipe (A2B3C4D1E2 A3B3C1D2E4, A4B1C4D2E3, A4B3C2D4E2) and the optimal formula (A3B3C3D2E2) with and without coating of Gr after soaking in 3.5% NaCl solution 3 d electrochemical experiment was carried out.
Optimal preparation of coating formula of high frequency capacitive reactance arc radius, explain coating for external corrosion ions such as Cl - the greater the obstacle, the better the corrosion resistance, which verifies the better the result of the formula is reliable.
The coating formula under optimal conditions is AR 50.00% (mass fraction, lower same), EMF 10.00%, Gr 0.10%, ZnO 3.75%, Zn3 (PO4) 23.75%. According to this formulation, the coating has no agglomeration, no crack, and the adhesion is 1, the hardness of the pencil is 6 H, the impact strength is 470 N · cm, and the wear amount is 0.000 4 g.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Coating of environmental performance test data shows that after adding Gr, TVOC content in 55 minutes from 9.999 mg/m3 rapidly decreased to 0.028 mg/m3, 60 min after its concentration finally stabilized at about 0.120 mg/m3, is 1/5 of the content of GB 50096-50096 limit.
At the same time, HCHO fell from 1.981 mg/m3 in 50 min to 0.028 mg/m3, and after 105 min, HCHO concentration was finally stable at 0.002 mg/m3, which was 1/40 of GB/T 16127-1996.
Coating after 3 h crosslinking TVOC and experiment content is far lower than the national limit standard, explain Gr modified AR coating is a kind of environmental protection and low pollution coatings is better than that of AR coating modified by SiO2 (after crosslinking free experiment content is 0.015 g/kg) [8], after 50 min to release a quantity to gradually stabilized, with modified graphene is associated with the three-dimensional structure of matrix resin to form.
In order to validate the results of orthogonal test selection formula, selection in the mechanical properties of well test recipe (A2B3C4D1E2 A3B3C1D2E4, A4B1C4D2E3, A4B3C2D4E2) and the optimal formula (A3B3C3D2E2) with and without coating of Gr after soaking in 3.5% NaCl solution 3 d electrochemical experiment was carried out.
Optimal preparation of coating formula of high frequency capacitive reactance arc radius, explain coating for external corrosion ions such as Cl - the greater the obstacle, the better the corrosion resistance, which verifies the better the result of the formula is reliable.
The coating formula under optimal conditions is AR 50.00% (mass fraction, lower same), EMF 10.00%, Gr 0.10%, ZnO 3.75%, Zn3 (PO4) 23.75%. According to this formulation, the coating has no agglomeration, no crack, and the adhesion is 1, the hardness of the pencil is 6 H, the impact strength is 470 N · cm, and the wear amount is 0.000 4 g.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Due to Gr mechanical performance is excellent, so the mechanical properties of coating is better than that of AR coating modified by SiO2 (have a reunion phenomenon, adhesion for level 1), AR coating wear resistance than organic silicon modified quantity increased 5.6 times, than glycidyl ester modified AR coating hardness increased 1.5 times than nano SiO2 hybrid fluorine silicone modified AR coating hardness increased 2 times more than the coating hardness not add Gr raised two grades, impact strength, resistance to wear is also improved.
Resistance to chemical reagents. In order to adapt to the application of waterborne coatings, ch-w121 water-based yellow essence, ch-w721 water-based brown essence, ch-w823 water-based black essence, ch-223 water-based orange essence, etc. The metal complex pigments in these water-based pigments are not completely dissoluble in the aqueous system, but a stable dispersion state.
Industry experts point out that the color pulp is also a major product in the water-based coating system. With the waterborne of coating, the future development space of color slurry which can be used with waterborne coatings is very large. Water - based transparent paste is mainly used for wood coloring and high - grade car finishes. After using the transparent slurry, the wooden tool can show the wood grain and upgrade the wood level.
It can improve the effect of automobile coatings in automobile coatings with aluminum silver slurry and pearlescent pigment. Waterborne solid colors are the most widely used in the water-based industrial coating system, and its performance is strongly related to the light resistance, weatherability and chemical resistance of pigment itself.
In addition, because the waterborne wood coatings formula contains a lot of organic material, very suitable for the growth of microbes and microbial slime can break down the ingredients in wood coatings, and influence the liquidity of the products, such as performance, lead to product bad, affect the use.
Therefore, it is necessary to control microbial growth, tank preservatives need has the following features: broad spectrum antimicrobial, pH applicability is wide and satisfy the requirement of the process under the condition of protection, operation safety, good compatibility, low content.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Due to Gr mechanical performance is excellent, so the mechanical properties of coating is better than that of AR coating modified by SiO2 (have a reunion phenomenon, adhesion for level 1), AR coating wear resistance than organic silicon modified quantity increased 5.6 times, than glycidyl ester modified AR coating hardness increased 1.5 times than nano SiO2 hybrid fluorine silicone modified AR coating hardness increased 2 times more than the coating hardness not add Gr raised two grades, impact strength, resistance to wear is also improved.
Resistance to chemical reagents. In order to adapt to the application of waterborne coatings, ch-w121 water-based yellow essence, ch-w721 water-based brown essence, ch-w823 water-based black essence, ch-223 water-based orange essence, etc. The metal complex pigments in these water-based pigments are not completely dissoluble in the aqueous system, but a stable dispersion state.
Industry experts point out that the color pulp is also a major product in the water-based coating system. With the waterborne of coating, the future development space of color slurry which can be used with waterborne coatings is very large. Water - based transparent paste is mainly used for wood coloring and high - grade car finishes. After using the transparent slurry, the wooden tool can show the wood grain and upgrade the wood level.
It can improve the effect of automobile coatings in automobile coatings with aluminum silver slurry and pearlescent pigment. Waterborne solid colors are the most widely used in the water-based industrial coating system, and its performance is strongly related to the light resistance, weatherability and chemical resistance of pigment itself.
In addition, because the waterborne wood coatings formula contains a lot of organic material, very suitable for the growth of microbes and microbial slime can break down the ingredients in wood coatings, and influence the liquidity of the products, such as performance, lead to product bad, affect the use.
Therefore, it is necessary to control microbial growth, tank preservatives need has the following features: broad spectrum antimicrobial, pH applicability is wide and satisfy the requirement of the process under the condition of protection, operation safety, good compatibility, low content.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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