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    • 25. 发明申请
    • Pvc-pcc nanocomposites resin composition with superior impact strengths and method for preparing the same
    • 具有优异冲击强度的Pvc-pcc纳米复合材料树脂组合物及其制备方法
    • US20070100044A1
    • 2007-05-03
    • US10579250
    • 2004-11-15
    • Hee-Joo JeonKwang-Min ParkSe-Hyun ShinSung-Woo Kim
    • Hee-Joo JeonKwang-Min ParkSe-Hyun ShinSung-Woo Kim
    • C08K5/00
    • C08F14/06B82Y30/00C08F114/06C08K3/26C08K2003/265C08K2201/011C08F2/10C08L27/06
    • The present invention relates to a PVC based nanocomposite resin composition with superior impact strength and a method for preparing the same. The method according to the present invention comprises the steps of: adding nano calcium carbonate and a lipophilic dispersing agent to a vinyl chloride monomer; adding the resultant mixture system to an aqueous solution system comprising deionized water, a suspension stabilizer and a polymerization initiator to prepare a suspension system and performing polymerization at an elevated temperature to prepare a PVC based nanocomposite resin composition; and processing the PVC based nanocomposite resin composition with at least one impact modifier selected from the group consisting of a methyl methacrylate-butadiene-styrene copolymer, an acrylic impact modifier and a chlorinated polyethylene. Preferably, the nano calcium carbonate is uniformly distributed in the vinyl chloride particles, so that improvement in impact strength and reduction of impact modifier required for processing the resin can be attained.
    • 本发明涉及具有优异冲击强度的PVC基纳米复合材料树脂组合物及其制备方法。 根据本发明的方法包括以下步骤:向氯乙烯单体中加入纳米碳酸钙和亲脂性分散剂; 将所得混合物体系加入到包含去离子水,悬浮稳定剂和聚合引发剂的水溶液体系中以制备悬浮体系并在高温下进行聚合以制备PVC基纳米复合树脂组合物; 以及使用至少一种选自甲基丙烯酸甲酯 - 丁二烯 - 苯乙烯共聚物,丙烯酸类抗冲改性剂和氯化聚乙烯的抗冲改性剂处理PVC基纳米复合树脂组合物。 优选地,纳米碳酸钙均匀地分布在氯乙烯颗粒中,从而可以获得加工树脂所需的冲击强度和冲击改性剂的降低的改善。