Thermoplastic acrylic resin and preparation method thereof
A technology of thermoplastic acrylic acid and butyl acrylate, which is applied in the field of acrylic resin and its preparation, can solve the problems of poor workability and high viscosity of acrylic resin, and achieve the effect of plump appearance, low VOC emission and good dryness
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Embodiment 1
[0036] Add 30 g of methyl methacrylate, 25 g of butyl acrylate, 18 g of isobornyl methacrylate, 3 g of hydroxyethyl acrylate, 1 g of acrylic acid and 39 g of butyl acetate into the reaction kettle, stir, and heat up to reflux. Then the benzoyl peroxide of 1g is dissolved in 39g butyl acetate, drips in reactor, and dropwise time is about 4h, after dripping, insulation reflux reaction 1h, cooling discharge, obtains thermoplastic acrylic resin, and its solid content is 50.2%, the Gage tube viscosity is 15S (23±2°C).
Embodiment 2
[0038] Add 25g of methyl methacrylate, 20g of butyl acrylate, 2g of hydroxyethyl acrylate, 10g of isobornyl acrylate, 5g of cyclohexyl methacrylate, 2g of acrylic acid and 53g of butyl acetate into the reaction kettle, stir, and heat up to reflux . Then 2g of azobisisobutyronitrile is dissolved in 13g of butyl acetate, and is dropped into the reaction kettle for about 4 hours. The content is 49.9%, and the Gage tube viscosity is 10S (23±2°C).
Embodiment 3
[0040] Methyl methacrylate 40g, butyl acrylate 30g, hydroxyethyl acrylate 5g, tert-butyl cyclohexyl methacrylate 10g, methacrylate 3.3.5. Trimethylcyclohexyl 20g, acrylic acid 2g and butyl acetate Add 87g of ester into the reaction kettle, stir, and heat up to reflux. Then 2g of tert-butyl peroxybenzoate is dissolved in 22g of butyl acetate, dripped into the reactor, and the dropwise addition time is about 4h. After dripping, it is incubated and refluxed for 1h, cooled and discharged to obtain thermoplastic acrylic resin. The content is 51.2%, and the Grizzard tube viscosity is 12S (23±2°C).
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