摘要
采用聚乙二醇单甲醚(MPEG)、异氟尔酮二异氰酸酯(IPDI)和甲基丙烯酸β-羟乙酯(HEMA)合成混合单体。然后与丙烯酸丁酯(BA)反应,通过乳液聚合的方法合成了聚氨酯-丙烯酸酯(PUA)复合乳液。以此为种子进行氯乙烯(VC)原位接枝乳液共聚,制造出了一种新型的PUA/PVC复合树脂。采用透射电镜(TEM)、动态力学分析仪、扫描电镜(SEM)等手段对PUA/PVC乳胶粒的形态、乳液PUA动态力学性能以及材料的断面形貌进行了研究。
Polyethylene glycol monomethylether, isophorone diisocyanate and hydroxyl ethyl methacrylate were used as raw materials, the mixmonomer was synthesized. Then it was copolymerized with butyl acrylate to produce polyurethane-acrylate （PUA） composite latex. The PUA composite latex as seeds was grafted by vinyl chloride via in-situ emulsion polymerization to prepare PUA/PVC hybrid resin. The morphology of the PUA/PVC hybrid latex, dynamic mechanical property of PUA latex and fractured feature of the materials were characterized by TEM, dynamic mechanical analysis （DMA）, SEM, respectively. TEM result shows that the PUA/PVC composite latex has a typical core/shell structure. The fractured surface of the notched sample showed toughness to some extend by SEM study.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2008年第11期29-32,共4页
Polymer Materials Science & Engineering
基金
河北省自然科学基金资助项目(B2006000014)
河北省教育厅资助项目(2004420)
关键词
乳胶粒的形态
水性聚氨酯
PUA/PVC复合乳液
原位接枝共聚
morphology of latex particles
waterborne polyurethane
PUA/PVC composite latex
insitu grafting copolymerization
