摘要
以磷酸三钙(TCP)为分散剂,甲苯-2,4-二异氰酸酯(TDI)和聚乙二醇(PEG)为油相和水相反应单体,通过基于高速剪切分散的界面聚合制备包裹檀香精油在聚氨酯壁材内的微米级微胶囊。发现通过调节分散剂TCP质量分数、悬浮化剪切强度、芯材/壁材比等因素,可制得拥有不同粒径和囊壁厚度的精油微胶囊。对不同粒径和囊壁厚度的精油微胶囊进行热重分析,缓释速率测试结果显示,当微胶囊粒径为30μm、壁厚适中时,胶囊的缓释效果最佳。
By using tricalcium phosphate（ TCP） as the dispersant,toluene-2,4-diisocyanate（ TDI） and polyethylene glycol（ PEG） as oil phase monomer and aqueous phase monomer respectively,micron-level microcapsules containing sandalwood oil in the polyurethane wall were prepared by interfacial polymerization based on high-speed shearing dispersion. Microcapsules with different diameter and wall thickness can by adjusting mass fraction of TCP,and suspending shear strength and the wall material / core ratio. Thermogravimetric analysis was conducted for microcapsules with different diameter and wall thickness. Slow release rate test result shows when the particle size is30μm and wall thickness is moderate,the slow-release effect of microcapsules is optimal.
出处
《丝绸》
CAS
CSCD
北大核心
2015年第12期1-5,共5页
Journal of Silk
基金
国家自然科学基金项目(51273182)
浙江省重大科技专项和科技成果转化推广工程项目(2013T103)
国家级大学生创新创业训练计划项目(201410338006)
浙江省新苗人才计划项目(2015R406032)
海宁市科技计划重大项目(20141204)
关键词
檀香精油
微胶囊
形态结构
缓释
sandalwood oil
microcapsules
morphology
slow release
