【摘要】 采用钛酸四异丙酯（ＴＰＴ）与甲基丙烯酸甲酯－丙烯酸丁酯－丙烯酸共聚物（ＭＭＡ－ＢＡ－ＡＡ）和第三组分硬脂酸（或焦磷酸二异辛脂，或辛酸）合成了三种新型大分子偶联剂，对ＣａＣＯ３进行偶联处理，用于填充聚氯乙烯（ＰＶＣ），对复合体系的力学行为及流动性进行了研究，大分子钛酸酯偶联剂比通用小分子钛酸酯偶联剂具有更好的偶联作用，可使复合体系的断裂伸长率提高５０％，缺口冲击强度提高３５％，同时改进了加工性能。更多还原

【Abstract】 Basing on the general method of titanate coupling agents synthesis,three series of new type macromolecular titanate coupling agents(MTCA)were synthesized with tetraisopropyl titanate and copolymer (metnylmethacrylatebutylacrylate-acrylic acid)and octoic(or stearic acid or diisooctyl phosphate). The experimental results indicated that the MTCA can improve the mechanical and processing properties of PVCICaCO, Composites.lt had been found that the structures and amounts of MTCA are the keys to determine the properties of composites.The MTCA are also more effective than the conventional titanate coupling agents.更多还原