一种双粒径分布的聚丙烯酸酯橡胶胶乳、ASA树脂及其制备方法
本发明提供了一种双粒径分布的聚丙烯酸酯橡胶胶乳、ASA树脂及其制备方法。所述聚丙烯酸酯橡胶胶乳的第一平均粒径为80~150nm,第二平均粒径为200~350nm。利用这种聚丙烯酸酯橡胶胶乳可以直接与苯乙烯单体和丙烯腈单体接枝共聚,成功制备出具有双粒径分布的ASA树脂,该ASA树脂与传统方法合成的ASA树脂性能相似,但大大简化了ASA树脂的制备工艺,显著缩短生产周期,提高了生产效率。
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