摘要
以相变材料为芯材、聚苯乙烯为内壳、亲水性壳聚糖为外壳、以十二烷基硫酸钠为乳化剂、十六烷为助乳化剂、偶氮二异丁腈为引发剂,壳核比为1∶1,用细乳液界面聚合法制备双壳微纳米相变胶囊,用FT-IR、DSC、SEM、LPSA对其表征,研究了芯材种类、乳化剂用量、助乳化剂用量、引发剂用量、超声乳化时间、搅拌速度等对双壳微纳米相变胶囊形貌的影响。结果表明,双壳微纳米相变胶囊形貌受到芯材种类、乳化剂用量、助乳化剂用量以及引发剂用量的影响较大,也与超声乳化时间和搅拌速度有关,并得到相应最佳工艺参数。
Double-shell phase change nano-capsules were prepared by the emulsion interfacial polymerization method with phase change materials as core, polystyrene as inner shell, hydrophilic chitosan as outer shell, with a 1:1 ratio of core to shell, sodium dodecyl sulfate as emulsifier, hexadecane as co- emulsifier and azodiisobutyronitrile as initiator. The prepared capsules were characterized by fourier transform infrared(FT-IR), differential scanning calorimetry(DSC), scanning electron microscope(SEM),laser particle size analyzer(LPSA) etc. The results show that the morphology of the double-shell phase change nano-capsules was greatly influenced by the kind of cores, the amount of emulsifier, co-emulsifier and initiator, and also related to phacoemulsification time and mixing speed.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2015年第2期135-142,共8页
Chinese Journal of Materials Research
基金
国家自然科学基金51172176资助项目~~
关键词
有机高分子材料
双壳微纳米相变胶囊
细乳液界面聚合法
形貌
粒径
影响因素
organic polymer materials,double-shell phase change micro-nano capsules,miniemulsion interfacial polymerization method,morphology,particle size,affect factor
