基于双网络相变气凝胶制备的调温保温织物性能  

Properties ofa temperature-regulated insulation fabric prepared on the basis of double network phase change aerogel

作　　者：张鸿 车珺雯 曾介祥 汤松 张志强 ZHANG Hong;CHE Junwen;ZENG Jiexiang;TANG Song;ZHANG Zhiqiang(College of Textile and Material Engineering,Dalian Polytechnic University,Dalian 116034,China)

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《现代纺织技术》2023年第5期230-239,共10页Advanced Textile Technology

基　　金：辽宁省重点攻关项目(LJKZZ20220073)。

摘　　要：为实现织物的调温保温改性,赋予其良好的热管理能力,以聚乙二醇为相变组份,设计交联聚丙烯酰胺和石墨烯双网络载体,采用原位溶液聚合法制备了相变气凝胶双功能材料。以自制相变气凝胶为改性剂,采用涂层法对棉布进行后整理,通过调节相变气凝胶与黏合剂质量比,得到改性织物的最佳制备工艺。采用扫描电子显微镜(SEM)、红外光谱仪(FTIR)、差示扫描量热仪(DSC)、温度记录仪和红外热成像仪对改性织物的形貌、化学结构、相变性能和热管理能力进行表征。结果表明改性织物的最佳工艺是:黏合剂选用水性聚氨酯(PUD HD-05N),相变气凝胶占整理液质量比为66.67%。相变气凝胶与织物分子间没有发生化学反应,依靠物理黏合作用被整理到织物表面,在织物表面形成功能膜;整理后的织物熔融焓为58.34 J g,熔融温度在29.81~55.03℃区间,结晶焓为53.89 J g,结晶温度在21.59~35.12℃区间,相变调温能力显著;制备的调温织物对升温有一定的延缓效果,降温时有较好的保温能力,显现良好的控温效果。With the development of society,people often work and live in the environment with changeable temperature.To maintain the balance of human body temperature,the common practice is to use large-scale refrigeration or heating devices in buildings.The energy utilization rate of such devices is low,which inevitably causes a lot of waste.The emergence of thermal management technology is crucial to improve personal thermal comfort and reduce building energy consumption.Thermo-regulated textiles can directly adjust the body temperature balance through fabrics,alleviate energy waste and reduce greenhouse gas emissions.Such a fabric with special functions can adjust the body temperature to a comfortable range according to the human environment.Although great progress has been made in thermo-regulated textiles,the functions of temperature regulation and heat preservation are often realized separately.Phase change fabrics can only regulate temperature,and aerogel fabrics can only keep heat,which cannot meet the actual requirements of dynamic changing thermal environment.To realize the dual function modification of temperature regulation and heat preservation of fabrics,this study organically combines phase change materials and aerogels,and applies them to fabrics,giving them good thermal management capabilities.Firstly,polyethylene glycol(PEG)was used as the phase change component to design crosslinked polyacrylamide and graphene dual network carriers,and dual network phase change aerogels were prepared by in-situ solution polymerization.Then,using self-made phase change aerogels as a modifier,the cotton fabric was treated with coating method to obtain a thermo-regulated and heat preservation fabric.By adjusting the mass ratio of phase change aerogels to waterborne polyurethane,the optimal process of the fabric was obtained.Phase change aerogel(PCM)bifunctional materials were prepared by one-step method.The dual network skeleton did not lose its rich pore structure due to the solid loading of PCM,and the PCM still had high l

关 键 词：调温保温织物 聚乙二醇 相变气凝胶 涂层法 热管理 

分 类 号：TB332[一般工业技术—材料科学与工程]