LA-SA\MMA相变微胶囊的制备及其性能研究  

Preparation and Performance Study of LA-SA/MMA Phase Change Microcapsules

作　　者：李想 许宛平 柯贵珍 LI Xiang;XUWanping;KE Guizhen(School of Textile and Engineering,Wuhan Textile University,Wuhan Hubei 430073,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430073

出　　处：《武汉纺织大学学报》2024年第5期60-65,84,共7页Journal of Wuhan Textile University

摘　　要：通过原位聚合法,制备了以甲基丙烯酸甲酯为壁材,月桂酸、硬脂酸共熔物为芯材的相变微胶囊LASA\MMA相变微胶囊。利用SEM扫描电镜、差示扫描量热仪、马尔文粒径分析仪、傅里叶红外光谱分析仪和TG热重分析仪观察并检测不同芯壁比的微胶囊,结果显示:芯壁比为4:5微胶囊呈圆球状、表面光滑平整,但是略微存在团聚粘着现象。囊壁对芯材起到了一定的保护作用,有效地提高微胶囊的热稳定性。微胶囊耐久性十分优异,可以多次重复使用。然后,使用干法涂层技术把不同质量分数的相变微胶囊涂覆到SMS织物上,产生相变温控织物。通过热成像,讨论经过相变微胶囊涂层整理后的织物,其蓄热控温性能是否受到影响。结果显示:经过涂层整理后的织物,其降温速率下降变慢,能够应对外界环境温度的变化。Phase change microcapsules LA-SA/MMA were prepared by in-situ polymerization method,with methyl methacrylate as the wall material and lauric acid and stearic acid as the core material.Using SEM scanning electron microscopy,differential scanning calorimetry,Malvern particle size analyzer,Fourier transform infrared spectroscopy analyzer,and TG thermogravimetric analyzer,microcapsules with different core to wall ratios were observed and detected.The results showed that microcapsules with a core to wall ratio of 4:5 were spherical in shape,with a smooth and flat surface,but there was slight agglomeration and adhesion phenomenon.The capsule wall has a certain protective effect on the core material,effectively improving the thermal stability of the microcapsule.Microcapsules have excellent durability and can be reused multiple times.Then,different mass fractions of phase change microcapsules were coated onto SMS fabrics using dry coating technology to produce phase change temperature controlled fabrics.Through thermal imaging,discuss whether the thermal storage and temperature control performance of the fabric treated with phase change microcapsule coating is affected.The results show that the fabric after coating treatment has a slower decrease in cooling rate and can cope with changes in external environmental temperature.

关 键 词：甲基丙烯酸甲酯 月桂酸 硬脂酸 相变微胶囊 原位聚合法 

分 类 号：TS102.1[轻工技术与工程—纺织工程]