摘  要丙烯腈-丁二烯-苯乙烯(ABS)材料综合性能表现较好，但也存在力学性能、耐候性、耐化学溶剂性、热变形温度低等缺陷。聚对苯二甲酸乙二醇酯(PET)具有韧性、高强度、高模量、耐化学溶剂、耐高温等性能，但PET的玻璃转化温度(Tg)较高、加工成型困难、结晶速率慢，这使得PET在工程塑料方面的使用受到制约。将ABS和PET高温熔融共混，制备性能优异的ABS/PET合金材料具有重要的学术意义和工业应用前景。本文主要围绕不同分子结构反应性聚合物的制备及其对ABS/PET共混体系增容效果的研究展开论述，主要研究内容和结论如下：88255

将合成的反应性梳型聚合物为增容剂，研究了不同环氧含量、不同侧链长度和不同接枝密度的反应性梳型聚合物对ABS/PET共混体系的增容效果。结果显示：相比于增容前，分散相在基体中的微区尺寸明显减小且分布比较均匀。

Acrylonitrile-butadiene-styrene (ABS) is a representative engineering plastic and it has been widely investigated and used in industry。 However, ABS shows relatively poor mechanical properties, low heat distortion temperature and weak weather or chemical resistance, which limited its application in many areas。 Meanwhile, Polyethylene terephthalate (PET) has attracted much attention in recent years because of its excellent mechanical performance: high strength, high modulus and nice chemical resistance。 Despite these advantages of PET, its inherent low crystallization speed inevitably limits the application of PET as an alternative of engineering plastics。 Thus the fabrication of PET/ABS blends with high performance has potentially promising utilizations in many fields。In this work, a new type of compatibilizers with various architectures are synthesized through the suspension polymerization strategy and utilized to compatibilize the PET/ABS blends。 The main contents and results are listed as follows: The synthesized reactive comblike polymers have been used as the compatibilizer in the ABS/PET blends。 The compatibilization effects of the compatibilizers were investigated by varying compatibilizer’s molecular structures。 The results showed that with the addition of compatibilizer, the size of the dispersed phase in the matrix is obviously reduced and the homogeneity of the dispersed phase increased。 

毕业论文关键词：增容； ABS； PET。

  Keyword: Compatibilizer; ABS; PET。

第一章 绪论 1

1。1 引言 1

ABS与PET是热力学不相容的，直接将这两种聚合物经过高温熔融共混，所得ABS/PET合金材料的性能并没有很大改善[3]。为了制备高性能的ABS/PET合金材料，需要对该体系共混改性。 1

1。2 ABS/PET合金材料的概述 1

1。3 本论文课题提出，意义及主要研究内容 1

1。3。1 课题提出及意义 1

1。3。2 主要研究内容 2

第二章 不同分子结构反应性聚合物对ABS/PET增容效果的研究 3

2。1 引言 3

2。2 实验部分 4

2。2。1 实验试剂 4

2。2。2 实验仪器 4

2。2。3 制备工艺 5

2。2。4 表征测试 5

2。3 结果与讨论 5

2。3。1 不同聚合方法合成的反应性聚合物对ABS/PET共混物增容效果的影响