Chemically modified asa resin and its preparation method and application
An ASA resin and chemical modification technology, applied in the field of polymer materials, can solve the problems of lack of innovation in the decorative layer of special-shaped materials, low surface hardness and resistance to scratches, and affect the performance of low-temperature drop hammer, so as to achieve a firm surface that is easy to fade, Effects of improving gloss and enhancing scratch resistance
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Embodiment 1
[0048] Embodiment 1: a kind of preparation method of chemically modified ASA resin comprises the following steps:
[0049] 1) Under nitrogen protection, add 22kg of deionized water, 0.3kg of sodium lauryl sulfate, 10kg of butyl acrylate monomer, 0.03kg of potassium persulfate, and 0.13kg of crosslinking agent ethylene glycol dimethacrylate into the reaction vessel ester and 0.13kg grafting agent allyl methacrylate, stirred at a temperature of 80°C for 12 hours to obtain a seed solution;
[0050] 2) Take out 10kg of the seed emulsion obtained in step 1) and put it into a reactor equipped with a stirrer, add 100kg of deionized water to dilute it 10 times, add 1.3kg of alkylphenol polyoxyethylene ether and 0.01kg of formaldehyde Sodium sulfoxylate, control the temperature at 60-80°C, and continuously drop the pre-prepared cumene hydroperoxide containing 0.4kg, 0.5kg crosslinking agent ethylene glycol dimethacrylate, and 0.5kg grafting agent Allyl methacrylate, 50kg butyl acrylat...
Embodiment 2
[0070] A preparation method of chemically modified ASA resin, comprising the steps of:
[0071] 1) Under nitrogen protection, add 30kg of deionized water, 0.5kg of sodium lauryl sulfate, 10kg of butyl acrylate monomer, 0.1kg of potassium persulfate, and 0.5kg of crosslinking agent ethylene glycol dimethacrylate into the reaction vessel ester and 0.5kg grafting agent allyl methacrylate, stirred at 80°C for 12 hours to obtain a seed solution;
[0072] 2) Take out 10kg of the seed emulsion obtained in step 1) and put it into a reactor equipped with a stirrer, add 200kg of deionized water to dilute it 20 times, add 1.6kg of alkylphenol polyoxyethylene ether and 0.04kg of formaldehyde Sodium sulfoxylate, control the temperature at 60-80°C, add the pre-prepared cumene hydroperoxide 1.6kg, 0.5kg cross-linking agent ethylene glycol dimethacrylate, and 0.5kg grafting agent continuously Allyl methacrylate, 130kg butyl acrylate monomer, 0.5kg acrylonitrile monomer, and 0.5kg ionic metha...
Embodiment 3
[0078] A preparation method of chemically modified ASA resin, comprising the steps of:
[0079] 1) Under nitrogen protection, add 26kg of deionized water, 0.4kg of sodium lauryl sulfate, 10kg of butyl acrylate monomer, 0.13kg of potassium persulfate, and 0.3kg of crosslinking agent ethylene glycol dimethacrylate into the reaction vessel ester and 0.3kg grafting agent allyl methacrylate, stirred at 80°C for 12 hours to obtain a seed solution;
[0080]2) Take out 10kg of the seed emulsion obtained in step 1) and put it into a reactor equipped with a stirrer, add 200kg of deionized water to dilute it 20 times, add 1.5kg of alkylphenol polyoxyethylene ether and 0.03kg of formaldehyde Sodium sulfoxylate, control the temperature at 60-80°C, add 1kg of cumene hydroperoxide prepared in advance, 0.5kg of crosslinking agent ethylene glycol dimethacrylate, 0.5kg of grafting agent methyl Allyl acrylate, 100kg butyl acrylate monomer, 0.5kg acrylonitrile monomer, and 0.5kg ionic methacryli...
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