摘要
通过悬浮聚合法成功制备了以丙烯腈-甲基丙烯酸甲酯-甲基丙烯酸共聚物为囊壁、十四醇为芯材的相变微胶囊,研究了不同单体组成对微胶囊形貌的影响。通过红外光谱(FTIR)、扫描电子显微镜(SEM)、激光粒度仪、差示扫描量热仪(DSC)、热重分析仪(TGA)分别对微胶囊进行了表征。研究结果表明:制得的相变微胶囊形态规整,相变焓随芯壁比提高而增大,当芯壁比为1.5时,相变微胶囊相变焓达最大,为124.5 J/g,并且相变微胶囊具有良好的热稳定性,可应用于储能功能纺织品中。
Microencapsulation of tetradecanol is carried out by means of suspension-like copolymerization of acrylonitrile with methyl methacrylate（MMA） and methacrylic acid （MAA）. The influence of the type of monomers and their proportion as shell materials on the morphology phase change material （PCM） microcapsules has been studied. The microspheres are characterized by using Fourier transform infrared spectroscopy （FTIR） , scanning electronic microscopy （SEM）, laser particle diameter analyzer, differential scanning calorimetry （DSC） and thermogravimetric analysis （TGA）. Experimental resuh shows that the morphologies of microspheres are smooth, as the increasing of the mass ratio of core/monomer, the latent heat of phase transformation increased, the latent heat of phase transformation is determined as 124.5J/g when the mass is 1.5. TGA analysis indicates that microspheres have good thermal stability, and the microspheres can be used tot energy storage functional textiles.
出处
《上海纺织科技》
北大核心
2014年第12期6-9,13,共5页
Shanghai Textile Science & Technology
关键词
丙烯腈
十四醇
微胶囊
相变材料
acrylonitrile
tetradecanol
mierocapsule
phase transiormation material
