资源描述：
《硕士学位论文-接枝型水性环氧树脂的合成与性能研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、分类号学号亏胡鹅汀口丈毒六周眨匕专今心之口刘仑岁丈接枝型水性环氧树脂的合成与性能研究研究生姓名莫雄培养单位化学化工学院指导教师姓名职称徐伟箭教授学科专业应用化学研究方向高分子的合成与应用论文提交月期年月日摘要环氧树脂具有化学稳定性好、粘接性和电绝缘性高等特点,通过何种方法制备水性环氧树脂成为各国研究水性涂料的重点。目前我国的产品主要采用机械或乳化,、的方法制备水性环氧树脂存在制得的树脂乳液粒径较大贮存稳定性不佳等缺点。因此,我们采用梭基单体接枝共聚并加入功能单体的方法对环氧树脂进行水性化的化学改性。基于此我们开展了以下几个方面
2、的工作考察了各种因素如聚合方法、溶剂的种类及配比、引发剂的种类、引发剂的浓度及加入方式、反应温度、反应时间,最终确立了接枝改性环氧树脂的较佳一一,一反应条件混合溶剂溶剂体积比选用引发剂作反应引发剂,浓度为反应时间以为宜。确定了接枝改性单体的种类及最佳配比,一一,一,不饱和梭酸单体不饱和梭酸酷并找出不同分子量环氧树脂对接枝共聚的影响规律。在较佳反应条件下对接枝共聚反应的动力学过程进行了考察,建立了接枝共聚改性环氧树脂的宏观动力学方程和狡基单体接枝转化率对时间的变化率方程。利用红外检测、热分析等方法对接枝改性树脂进行了表征,证明了
3、反应是发生在环氧分子链结构单元中含轻基的碳原子上。中和剂的种类和用量是配制,选择作,稳定性好的乳液的决定因素之一为中和剂中和剂用量为理论用量的。同时对改性树脂乳液制备的涂膜的部分性能进行,了检测结果表明通过化学接枝改性,树脂制得涂膜的粘附力、硬度和冲击强度等指标较未改性树脂涂膜有一定的提高。关键词环氧树脂接枝化学改性水性允氏、’由,,,,斌,肠’,,,氏川一一二,一,,’,一,一一硫,,,,,俩,吧诫,月,,且而飞目录摘要·····················································
4、···················⋯⋯·································································⋯⋯第一章绪论水性涂料的历史及现状·······································⋯⋯水性水基涂料的分类·································⋯⋯水性涂料中的树脂··········································⋯⋯水性树脂的合成与性质················
5、············,·······⋯⋯环氧树脂的概述······························,··············⋯⋯环氧树脂水性化·············································⋯⋯本课题的研究思路及意义·································⋯⋯第二章接枝型水性环氧树脂的合成研究前言························································,···⋯⋯接枝共聚反应机理·
6、·········································⋯⋯实验部分······················································⋯⋯结果与讨论···················································⋯⋯小结····························································⋯⋯第三章接枝共聚环氧树脂反应的宏观动力学研究前言··················
7、··········································⋯⋯实验部分······················································⋯⋯数据处理······················································⋯⋯曲线拟合······················································⋯⋯接枝转化率对时间的变化率方程························⋯⋯小结
8、····························································⋯⋯第四章接枝型水性环氧树脂的表征及性能研究前言······················································
