CAJ | 학술논문

针对高分子材料的自修复，选取双环戊二烯（DCPD）作为芯材，采用三聚氰胺-尿素-甲醛树脂为壁材，对其进行微胶囊化包裹。通过激光粒度分析仪、光学-摄影显微镜、微机差热天平和傅里叶变换红外光谱仪对微胶囊的粒径分布、表面形貌、热性能和化学结构等进行了表征。讨论了芯材投料量、乳化剂用量以及乳化速率对微胶囊物性的影响。结果表明：所得微胶囊的平均粒径和囊芯含量可以通过选择不同工艺参数得到控制，其囊芯含量最高约90 wt.%，体积平均粒径为50~70μm。
침대고분자재료적자수복，선취쌍배무이희（DCPD）작위심재，채용삼취청알-뇨소-갑철수지위벽재，대기진행미효낭화포과。통과격광립도분석의、광학-섭영현미경、미궤차열천평화부리협변환홍외광보의대미효낭적립경분포、표면형모、열성능화화학결구등진행료표정。토론료심재투료량、유화제용량이급유화속솔대미효낭물성적영향。결과표명：소득미효낭적평균립경화낭심함량가이통과선택불동공예삼수득도공제，기낭심함량최고약90 wt.%，체적평균립경위50~70μm。
Towards the self-healing of polymer material,chooses dicyclopentadiene(DCPD) as core,adopts melamine-urea-formaldehyderesin as wall meterial,to fabricate the microcapsules. The properties of microcapsules,including the particle size,the surface morphology,the thermal properties and the chemical structure,are analysed by using laser particle size analyzer,opti-cal-photographic microscope(OM),microcomputer differential thermal balance and Fourier trans-form infrared spectroscopy(FT-IR),respectively. Meanwhile,the effects of the feed capacity of core material,emulsifier content and emulsifying speed on the preparation of microcapsules are dis-cussed. Experimental results indicate that the highest core content of the resultant microcapsules is about 90 wt.%and the average diameter in volume of the microcapsules is in the range of 50-70μm, which can be adjusted by changing processing parameters.