A kind of anti-alcohol washing, high temperature resistant mirror silver resin and preparation method thereof
A mirror silver resin, high temperature resistant technology, applied in the coating and other directions, can solve the problems of reduced alcohol wiping resistance of the paint film, reduced ink imitation mirror effect, reduced ink imitation mirror effect, etc., to achieve good silver powder arrangement effect, alcohol resistance. Good wiping effect, convenient for large-scale industrial production
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[0019] A preparation method of alcohol washing-resistant and high-temperature-resistant mirror silver resin, comprising the following steps:
[0020] 1) Put the solvent into the reaction kettle, pass in the protective gas, add cellulose acetate butyrate while stirring, after the cellulose acetate butyrate is completely dissolved, add ethyl acrylate isocyanate, and fully react at constant temperature to obtain cellulose acetate butyrate prime macromonomer;
[0021] 2) Mix the cellulose acetate butyrate macromer, the acrylate monomer, the functional acrylate monomer and the initiator evenly to obtain the mixed liquid, and put the solvent into the reaction kettle for later use, and pass into the protective gas, The mixed liquid is added dropwise, and after the drop is completed, an initiator is added, and a radical polymerization reaction is carried out at a constant temperature to obtain an alcohol wash-resistant, high-temperature-resistant mirror silver resin.
[0022] Prefera...
Embodiment 1
[0038] 1) Put 40 parts by mass of butyl acetate into the reaction kettle, blow in nitrogen, then add 20 parts by mass of cellulose acetate butyrate (CAB381-0.1), stir to dissolve, and then add 0.35 parts by mass of ethyl acrylate isocyanate , heated up to 60°C, and reacted at constant temperature for 4 hours to obtain cellulose acetate butyrate macromer;
[0039] 2) The cellulose acetate butyrate macromer in step 1), 40 parts by mass of methyl methacrylate, 12 parts by mass of butyl methacrylate, 8 parts by mass of isobornyl methacrylate, 0.8 parts by mass Parts of dibenzoyl peroxide were mixed evenly, and used as a titrating solution, then 50 parts by mass of butyl acetate was added to the reaction vessel, nitrogen gas was introduced, the temperature was raised to 105°C, the titrating solution was added dropwise, and the dripping was completed in 3.5 hours After dripping, react at constant temperature for 1 hour, then add 0.8 parts by mass of dibenzoyl peroxide, react at cons...
Embodiment 2
[0043] 1) Add 30 parts by mass of butyl acetate to the reaction kettle, blow in nitrogen, then add 20 parts by mass of cellulose acetate butyrate (CAB381-0.1), stir to dissolve, and then add 0.1 part by mass of ethyl acrylate isocyanate , heated up to 55°C, and reacted at constant temperature for 5 hours to obtain cellulose acetate butyrate macromer;
[0044] 2) The cellulose acetate butyrate macromer in step 1), 20 parts by mass of methyl methacrylate, 10 parts by mass of butyl acrylate, 4 parts by mass of isobornyl methacrylate, 0.3 parts by mass of Mix dibenzoyl peroxide evenly, and use it as a titration solution, then add 80 parts by mass of xylene into the reaction vessel, feed nitrogen gas, raise the temperature to 95°C, add the titration solution dropwise, and finish the dripping in 3.5 hours. Afterwards, react at a constant temperature for 1.5 hours, then add 0.3 parts by mass of dibenzoyl peroxide, react at a constant temperature for 1.5 hours, and then cool and disch...
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