摘要：聚氨酯乳液其硬度、耐水性、耐醇性不足，而聚丙烯酸酯其成膜性、耐磨性差。因此本论文通过对核壳结构交联含氟聚氨酯丙烯酸酯乳液的制备、表征和性能分析，对聚氨酯丙烯酸酯乳液进行改性，着重研究了不同氟含量、不同交联形式、不同DMPA含量对乳液性能的影响，并且通过粒径测试、红外色谱、吸水率、耐酸碱性等的测试，综合考察乳液的各种性能以及成膜稳定性。研究表明，不同氟含量对乳液的成膜性有着一定的影响，氟含量越多越不利于成膜，所得乳液成膜性差，在室温下以及50℃下成膜均呈脆性；交联后的聚氨酯丙烯酸酯相比未交联的聚氨酯丙烯酸酯有更好的成膜性以及各种物理力学性能。9495
关键词：    交联；聚氨酯丙烯酸酯；核壳结构；含氟；性能
The Study on The Preparation of Core-Shell Cross-linked Fluorinated Polyurethane - Acrylate Emulsion
Abstract: The polyurethane emulsions suffer from poor hardness, water resistance and alcohol resistance.However the polyacrylate polymer emulsion is lacking in film forming and
poor wear resistance.So we have researched the preparation, characterization and performance analysis of core-shell structure of crosslinked fluorinated polyurethane acrylate emulsion, through modification of polyurethane acrylate emulsion,focus on the inference of different fluorine content, different cross-linking form and different DMPA content, and by particle size test, infrared chromatography, water absorption rate, acid and alkali resistance test, comprehensive study of various properties of emulsion and film stability. The study shows that
different fluorine content on the emulsion film has a certain effect, The fluorine content of more and more detrimental to the film, the emulsion film forming difference,the film is brittle at room temperature and 50℃; film and various physical and mechanical properties of polyurethane acrylate cross-linked polyurethane acrylate as compared to non-crosslinked better。
Keywords: crosslinked；polyurethane acrylate；core-shell structure；fluoride；property
目录
1    绪论    1
1.1    含氟聚氨酯-丙烯酸酯的概述    1
1.2    交联型聚氨酯-丙烯酸酯的概述    2
1.2.1    自交联    2
1.2.2    高温交联    2
1.2.3    乳化机理    2
1.3    核壳结构聚氨酯-丙烯酸酯的概述    3
1.4    研究意义及目的    3
2    试验    4
2.1    原料名称、规格及来源    4
2.2    聚氨酯-丙烯酸酯的反应机理    4
2.3    聚氨酯-丙烯酸酯的制备过程    5
2.3.1    聚氨酯的制备过程    5
2.3.2    丙烯酸酯改性聚氨酯的制备过程    5
2.4    聚氨酯-丙烯酸酯的合成工艺    6
2.5    聚氨酯-丙烯酸酯的性能测试    7
2.5.1    乳液外观测试    7
2.5.2    固含量的测量    7
2.5.3    胶膜吸水率测试    8
2.5.4    胶膜的耐水性测试    9
2.5.5    胶膜的耐酸性、耐碱性测试    11
2.5.6    乳液成膜性测试    11
2.5.7    铅笔硬度的测试    11
2.5.8    红外光谱    11
2.5.9    乳液稳定性测试    11 核壳结构交联含氟聚氨酯-丙烯酸酯乳液的制备研究:http://www.751com.cn/huaxue/lunwen_8237.html