Industry Share: Preparation of a parent modified acrylate copolymer adhesive 5

1. Preparation of amphiphilic oligomers

16g octadecyl alcohol, 3.5g maleic anhydride and 155g toluene were mixed evenly and poured into a round-bottling flask; The monoester of octadecyl maleate was obtained at 120℃ for 4h. 7g octadecyl maleate monoester, 8.5g polyethylene glycol 600, 0.8 g p-toluene sulfonic acid and 65g toluene were poured into a round-bottom flask, mixed well, and reacted at 95℃ for 12h to obtain amphiphilic oligomers.

2. Preparation of acrylate copolymer adhesive

• (1) Take 8g ethyl methacrylate, 12g ethyl acrylate, 40g toluene, 15g ethanol, 5g acetone and mix evenly; Then, 8g dimethylacryloxy (trimethyl) hexamethyldiurethane, 1g epoxide E-44 and 1.5g ammonium persulfide were added in the stirring state for 6h at 65℃.
• (2) 8g amphiphilic oligomer, 2g polyethylene glycol diallyl ester, 1.1g sodium p-toluene thionite and 0.5g ammonium persulfide were added and stirred at 70℃ for 6h;
• (3) Add 0.3g sodium hydrogen phosphate, 0.4g citric acid, 0.1g phosphate PM1500, 3 calcium carbonate whisker and 6g silicon dioxide successively, stirring until evenly dispersed;
• (4) In stirring state, vacuum, parental oligomer block modified acrylate copolymer adhesive.