溶剂蒸发法制备氯离子触发型微胶囊  

Preparation of microcapsule with chlorine ion triggered by solvent evaporation technique

作　　者：何永兴[1] 朱光明[1] 邬治平 周玉明[1] 

机构地区：[1]深圳大学材料学院,广东深圳518000

出　　处：《功能材料》2015年第2期2144-2147,2152,共5页Journal of Functional Materials

基　　金：国家自然基金重大国际(地区)合作与交流资助项目(51120185002);国家自然科学基金资助项目(51272160);广东省自然科学基金研究团队资助项目(9351806001000001)

摘　　要：通过溶剂蒸发法制备囊壁嵌入硫酸铅(PbSO4)的十六烷/聚甲基丙烯酸甲酯(PMMA)有机-无机复合微胶囊,利用络合原理在囊壁中嵌入与氯离子发生络合反应的硫酸铅,从而达到对氯离子触发。通过激光粒径分析、十六烷检测仪和扫描电子显微镜(SEM)来确定微胶囊的制备工艺参数和触发效果。结果表明,5%的聚乙烯醇(PVA)做乳化剂,400r/min乳化搅拌转速制备出的微胶囊粒径在100μm左右,粒径分布范围比较窄,且PbSO4在壁材上分布很均匀。此外,微胶囊在不同浓度的盐水中和不同的时间内触发的效果不同。Organic-inorganic compound microcapsules with capsule wall embedded lead sulfate （PbSO4 ）and hexadecane core surrounded by PMMA shell had been prepared by the solvent evaporation,embedded in the cap-sule wall and chloride ion complexing reaction of lead sulfate by using the theory of complex to achieve the chlo-ride ion was triggered.preparation of microcapsule technology parameters and triggered effects be determined by scanning and optical microscopy techniques and hexadecane detector.Results show that microcapsule particle size in about 100 microns while the concentration of PVA as the dispersion agent is 5% and the stirring speed is 400 r/min,and the particle size is uniform,and PbSO4 is evenly distributed on the wall.In addition to,Micro-capsules with the effect of trigger is changed in different time and concentrations of brine.

关 键 词：有机-无机微胶囊 溶剂蒸发 氯离子触发 

分 类 号：TQ316.2[化学工程—高聚物工业]