纳米相变胶囊及其整理棉织物的调温性能  

PCM nanocapsules and smart thermoregulation cotton textiles made thereof

作　　者：林鹤鸣[1] 司琴[1] 杨雷[1] 吴明华[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《纺织学报》2009年第5期95-99,共5页Journal of Textile Research

基　　金：浙江省"十五"纳米技术重大科技攻关及示范应用工程项目(2003C11001);长江学者和创新团队发展计划资助项目(IRT0654);浙江省自然科学基金资助项目(Y4080375)

摘　　要：为解决微米相变胶囊在应用中潜在的问题,合成2种不同相变温度的纳米相变微胶囊,借助透射电镜和差示扫描量热仪研究2种胶囊的粒径和储热性能。采用浸轧工艺整理棉针织物,用红外测温仪和织物透气量仪测定整理织物的调温和透气性能。研究结果表明,胶囊的粒径约150 nm,核壳体积比为1∶1,峰值相变温度分别为37.1℃和33.1℃,相变焓分别为57.2 J/g和57.8 J/g。整理织物的热焓可达7 000 J/m2,整理织物升温或降温速率明显减缓,具有智能调温功能,但透气性能略有降低。采用纳米相变微胶囊整理织物可以制备具有调温功能的纺织品。To overcome the latent problems of microcapsules in their applications, two kinds of PCM （phase change materials） nanocapsules with different melting point are synthesized. The particle size as well as the heat storage capacity is investigated by TEM and DSC. Cotton knitted fabrics are then treated with above two kinds of PCM microcapsules by a pad-dry-cure method with binder. The properties of thermoregulation and air permeability of the finished fabrics are evaluated by infrared thermometer and fabric air permeability meter. It is found that the diameters of the nanocapsules are around 150 nm. The ratio by volume of shell to core is 1：1. The melting peak points are 37.1 ℃ and 33.1 ℃ respectively. The phase change enthalpies are 57.2 J/g and 57.8 J/g. After treatment, the fabrics are capable of absorbing about 7 000 J/m^2 heat. The temperature changing rate of the treated fabric slows down as the PCM experiences phase change, which demonstrates excellent thermoregulation function. The air permeability slightly reduced with respect to the add- on binder and nanocapsules.

关 键 词：相变材料 纳米微胶囊 智能调温 纺织品 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]