Aqueous oil polish and preparation method thereof
A technology of water-based varnish and aqueous solution, which is applied in the direction of coating, etc., can solve the problems of high price, poor water resistance of film formation, etc., and achieve the effects of reducing production costs, strong water resistance, and high gloss of film formation
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Embodiment 1
[0041] Example 1: (The comonomer content is 44%)
[0042] Take 70.2g styrene, 70.2g butyl methacrylate, 25.2g methyl methacrylate, 14.4g hydroxyethyl acrylate in a 250mL Erlenmeyer flask to obtain the comonomer; take 1.2g ammonium persulfate and 0.8g sulfurous acid Sodium hydrogen is dissolved in 72g of water to obtain an aqueous initiator solution; 8g of polyethylene glycol monomethyl ether methacrylate with a molecular weight of 1000, 1.5g of sodium hydroxide, and 144g of water are placed in a 500mL three-necked flask, fully stirred until dissolved, and then Move the three-necked flask to a 85°C water bath. After the temperature in the reaction flask stabilizes, add 15% by mass of comonomer and 20% by mass of initiator aqueous solution; half an hour later, add the remaining portion to the three-necked flask at a constant rate The comonomer and initiator aqueous solution of the comonomer, control the dropwise addition within 2 hours. After the dripping is completed, the tempera...
Embodiment 2
[0044] Example 2: (The comonomer content is 20%)
[0045] Take 31.2g of styrene, 31.2g of butyl acrylate, 11.2g of methyl methacrylate, and 6.4g of hydroxyethyl acrylate in a 250mL Erlenmeyer flask to obtain the comonomer; take 1.2g of ammonium persulfate and dissolve it in 75g of water to obtain the initiator Aqueous solution; Put 4g of polyethylene glycol monomethyl ether methacrylate with a molecular weight of 1200, 0.8g of sodium hydroxide, and 150g of water in a 500mL three-necked flask, stir well until it dissolves, and then move the three-necked flask to a 85℃ water bath After the temperature in the reaction flask stabilizes, add 15% by mass of comonomer and 20% by mass of initiator aqueous solution; half an hour later, add the remaining comonomer and initiator aqueous solution to the three-necked flask at a uniform rate. Control the dripping in 2 hours. After the dripping is completed, the temperature is raised to 90°C, the reaction is kept for 2 hours, cooled to below 3...
Embodiment 3
[0047] Example 3: (The comonomer content is 50%)
[0048] Take 78g of styrene, 78g of butyl methacrylate, 28g of methyl methacrylate, and 16g of hydroxypropyl acrylate in a 250mL Erlenmeyer flask to obtain a comonomer; take 2.8g of potassium persulfate dissolved in 62g of water to obtain an aqueous initiator solution; Put 8g of polyethylene glycol monomethyl ether methacrylate with a molecular weight of 1500, 2g of sodium bicarbonate, and 125g of water in a 500mL three-necked flask, stir well to dissolve, and then move the three-necked flask to a 85°C water bath. After the temperature in the reaction flask is stable, add 15% by weight of comonomer and 20% by weight of the initiator aqueous solution; half an hour later, add the remaining comonomer and initiator aqueous solution to the three-neck flask at a constant rate, and control it at 2 The addition is completed within hours. After the dripping is completed, the temperature is raised to 90°C, the reaction is kept for 2 hours,...
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