Moisture-proof primer
A technology of moisture-proof primer and isooctyl methacrylate, which is applied in the direction of coating, etc., can solve the problems of poor moisture-proof performance and poor pertinence, and achieve excellent moisture-proof performance
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Embodiment 1
[0017] The preparation raw material of this moisture-proof primer is:
[0018] 20 kg of isooctyl methacrylate, 6 kg of cyclohexyl methacrylate, 6 kg of cycloolefin copolymer, 2 kg of pentachlorobiphenyl, 0.5 kg of hexamethylene diisocyanate, 60 kg of xylene;
[0019] Its preparation method is as follows:
[0020] First, 7 kg of isooctyl methacrylate, 2 kg of cyclohexyl methacrylate, 2 kg of cycloolefin copolymer and 0.25 kg of hexamethylene diisocyanate, 2 kg of pentachlorobiphenyl 2 kg and 20 kg Put the xylene into the reaction kettle, start the mixer to stir at a stirring speed of 400-600 rpm, heat up, and keep warm when the temperature reaches 70°C. After the viscosity of the system is greater than 60 seconds, keep the temperature at 70°C- 80°C, and start to add the remaining raw material mixture dropwise, drop it in 3-4 hours, then keep warm for 2 hours, then raise the temperature to 90-100°C, keep warm for 2 hours, then cool down and discharge. .
Embodiment 2
[0022] The preparation raw material of this moisture-proof primer is:
[0023] 30 kg of isooctyl methacrylate, 2 kg of cyclohexyl methacrylate, 2 kg of cycloolefin copolymer, 1 kg of pentachlorobiphenyl, 1 kg of hexamethylene diisocyanate, 80 kg of xylene;
[0024] Its preparation method is as follows:
[0025] First, 10 kg of isooctyl methacrylate, 0.7 kg of cyclohexyl methacrylate, 0.7 kg of cycloolefin copolymer, 1 kg of pentachlorobiphenyl, 0.25 kg of hexamethylene diisocyanate and 30 kg of di Put toluene into the reaction kettle, start the mixer to stir at a stirring speed of 400-600 rpm, heat up, keep warm when the temperature reaches 70°C, and keep the temperature at 70°C-80°C after the viscosity of the system is greater than 60 seconds In between, and start to add the remaining raw material mixture dropwise, the dropwise addition is completed in 3-4 hours, then keep the temperature for 2 hours, then raise the temperature to 90-100°C, keep the temperature for 2 hours, ...
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