界面聚合法制备聚脲包覆硅油微胶囊的研究
关键词 缓蚀剂 微胶囊 界面聚合 聚脲 甲基硅油
毕业论文设计说明书外文摘要
Title Preparation and characterization of polyurea microcapsules containing silicone oil through interfacial polymerization.
Abstract
In order to reduce propellant ablation function of gun barrel and improve the
service life of the weapons, bore-wear reducing additive need to be added.
Polydimethylsiloxane,commonly known as silicone oil, is a highly efficient liquid bore-wear reducing additive which can significantly reduce ablation effect.Microencapsulation on silicone oil can delay the release rate of silicone oil and make it easy to transport.We adopt the polyurea as microcapsule wall material.We choose TDI and ethanediamine as polyurea monomer to coat methyl silicone oil via interfacial polymerization . This study explores the influence factors of microcapsule morphology and silicone-coated quantity through changing emulsifier dosage, stirring speed,ratio of monomer and silicone oil.This study finds it that silicone oil microcapsule is uniform sphere and has good dispersibility at the emulsifier dosage is 1.5 g and stirring speed between 1500 rpm to 2000 rpm. With the volume ratio of the wall material and the core material is declining，silicone-coated quantity is rosing.When the volume ratio is 1:4,silicone-coated quantity is maximum.It can reach 81.25%。
Keywords bore-wear reducing additive，microcapsule，interfacial polymerization，
polyurea，methyl silicone oil
目 次
1 绪论 1
1.1本论文的研究背景及意义 1
1.2 有机硅降烧蚀剂 1
1.3 微胶囊封装技术 2
1.4微胶囊制备方法 4
1.5 硅油微胶囊研究现状 6
1.6 本课题研究内容 7
2 硅油微胶囊的制备 8
2.1 实验原料及仪器 8
2.2 制备硅油微胶囊 8
2.3 实验注意事项 10
3 硅油微胶囊的表征 11
3.1 红外表征（FTIR） 11
3.2 扫描电子显微镜（SEM） 12
3.3 超高速智能粒度仪 13
3.4 马弗炉煅烧 13
4 影响因素的讨论 15
4.1 乳化剂用量 15
4.2 搅拌速度 16
4.3 壁材芯材体积比 18
结 论 20
参考文献22
1 绪论
1.1本论文的研究背景及意义
军事方面的实力，是一个国家综合国力的重要体现。当今世界各国之间军备竞赛愈演愈烈，不断开发各种强力的新式武器。为了提高各种武器的威力，必须装填更多的火药，或者使用高能量的发射药。不管使用较多的火药还是使用高能火药，都避免不了一个问题，那就是火药对炮管的烧蚀将会加重，如果不解决这个问题，炮管烧蚀会使炮管内径增大，內膛表面损坏，炮弹速度变慢、射程变短、精度变差，使火炮武器过早报废，浪费大量军费开支。
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