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液体石蜡相变微胶囊的制备及性能表征
徐哲; 李建强
2012
Source Publication过程工程学报
Issue02Pages:293-301
Abstract采用原位聚合法制备以液体石蜡为囊芯、密胺树脂为囊壁的相变微胶囊,考察了乳化工艺、预聚时间、囊壁含量和聚合反应时间对微胶囊质量的影响,优化了制备工艺.利用电子天平、扫描电镜、激光粒度仪、傅里叶红外光谱仪(FT-IR)、热分析仪(DSC和TG/DTA)分别研究了优化工艺下微胶囊的囊芯含量、形貌特征、粒径分布、结构和热性能,并考察了其循环稳定性、抗压性能、抗渗透性.结果表明,微胶囊包覆完整无粘连,表面光洁致密,囊芯含量76%(ψ),囊壁厚度至少可达50~100nm,粒径分布集中在1~5μm,平均为3.32μm.DSC显示有2个吸热峰,起始相变温度分别为4.4和28.6℃,总相变潜热14.9J/g.胶囊耐热温度可达215℃,能承受1.0MPa外压,经300次冷/热循环仍保持良好稳定性,且有很高的抗渗透性.
Keyword相变材料 微胶囊 液体石蜡 密胺树脂 原位聚合
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10591
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
徐哲,李建强. 液体石蜡相变微胶囊的制备及性能表征[J]. 过程工程学报,2012(02):293-301.
APA 徐哲,&李建强.(2012).液体石蜡相变微胶囊的制备及性能表征.过程工程学报(02),293-301.
MLA 徐哲,et al."液体石蜡相变微胶囊的制备及性能表征".过程工程学报 .02(2012):293-301.
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