纺织品用相变微胶囊的制备与表征
毕业论文关键字：微胶囊；相变材料；十二醇；乳业聚合法
Preparation of lauryl alcohol phase change microcapsule in methyl methacrylate
Abstract: methyl methacrylate as wall material, lauryl alcohol as the core material, the use of in emulsion polymerization method of the spinning phase change microcapsules. The use of biological microscopes, infrared spectroscopy, thermal analysis techniques such as testing phase transition prepared microcapsules morphology, particle size, composition and thermal performance analysis and characterization. Discusses the use level of dispersing agent, The performed temperature, The performed time，response time，use level of Emulsifier and other factors on microcapsule size and embedding rate. The results show that the success of methyl methacrylate lauryl alcohol embedded, to obtain spherical spinning phase change microcapsules. When the use level of dispersing agent is 0.1g,do not use the emulsifier, emulsification ten minutes in when embedding 50 degree,30 minutes prepolymerization, response 5 hours in 85 degree will get the highest embedding rate.The data distribute by curves.Characterized by thermogravimetric best embedded microcapsules was 67%; 255 ℃ less microcapsules with good thermal stability.
Key Words: microcapsule; phase change material ; Lauryl alcohol ; Emulsion polymerization method
目 录
1 绪论 1
1.1 微胶囊技术 1
1.1.1 微胶囊的概念 1
1.1.2 微胶囊芯材与壁材选择 1
1.2 相变材料 2
1.2.1 相变材料概念 2
1.2.2 相变材料分类 2
1.2.3 相变材料的研究现状 3
1.3 相变材料微胶囊 4
1.3.1 相变材料微胶囊概念 4
1.3.2 相变材料微胶囊制备方法 4
1.3.3 相变材料微胶囊制备方法的选择 5
1.4 微胶囊制备中的主要影响因素 5
1.4.1 乳化剂的种类和用量对微胶囊的影响 6
1.4.2 引发剂的用量对微胶囊的影响 6
1.5 本课题的内容及意义 6
1.5.1 相变材料微胶囊在纺织品行业的应用与前景 6
1.5.2 十二醇在纺织行业的应用及优势 7
2 实验原理和方法 7
2.1 实验原料及仪器 7
2.1.1 实验原料 7
2.1.2 实验仪器 7
2.2 实验原理 8
2.2.1甲基丙烯酸甲酯聚合反应原理 9
2.3 实验方法 10
2.3.1 MMA的精提纯 10
2.3.2 BPO的重结晶 10
2.3.3 AIBN的纯化 11
2.3.4 相变材料微胶囊的制备过程 11
2.4 实验内容 11