相变调温面料中相变区域分布对温度的影响  

The effect of phase change area distribution on temperature in phase change fabrics

作　　者：陈晓辉 张国庆[2] 杨罡 杨柳[1] 王雪琴[1] CHEN Xiaohui;ZHANG Guoqing;YANG Gang;YANG Liu;WANG Xueqin(College of Textile Science and Engineering(International Institute of Silk),Hangzhou 310018,China;School of Materials Science&Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),杭州310018 [2]浙江理工大学材料科学与工程学院,杭州310018

出　　处：《现代纺织技术》2023年第5期174-180,共7页Advanced Textile Technology

基　　金：国家自然科学基金项目(22075252)。

摘　　要：为探究相变区域分布对相变调温面料温度变化的影响,首先利用相变石蜡和纯棉织物制成相变调温面料,在控制相变区域与非相变区域面积相同情况下,分别制作1、3、5、7散点数量的相变调温面料样品。然后利用热红外成像仪观察、记录不同分布情况下相变调温面料的温度变化,探究在降温过程中不同分布相变调温面料温度变化的规律。最后利用有限元软件建立相变调温传热模型,对不同分布的相变调温模型进行验证。结果表明:在降温过程中,随着散点数量的增加,相变调温面料在相变温度区域内的平均温度升高,保温性能提高。建立的相变调温面料简化模型具有较好的模拟精度,可通过此模型对相变调温面料在不同条件下进行模拟与预测。With the rapid development of human society and economy,the energy problem is becoming more and more serious.Phase change materials can absorb or release heat by phase transition with the change of ambient temperature.Therefore,as a new material that can be reused and efficiently stored energy,it is widely used in various industries.At the same time,with the gradual improvement of the quality of life,people's requirements for clothing fabrics are more than to meet the simple warmth function.The phase change thermo-regulated fabric can keep the temperature stable in the phase change temperature range when the ambient temperature changes,which can ensure the thermal comfort of the human body to a certain extent.Due to the characteristics of the phase change material,the thermo-regulated fabric can be recycled many times,reflecting the low-carbon environmental protection function.In recent years,finite element simulation technology has broad application prospects in the context of the continuous improvement of computer science.The finite element software is used to simulate and analyze the heat transfer process of phase change fabrics,which can more clearly understand the phase change heat transfer process and realize the optimization of the design process and the prediction of the experimental results.In this paper,the distribution design of phase change area was mainly carried out,and the influence of the distribution of different scatter points on temperature was analyzed,so as to improve the problems of hard hand and poor permeability of traditional phase change temperature regulating fabric.Firstly,the phase change paraffin was used as the core material and the polyacrylate was used as the wall material to prepare the phase change microcapsule emulsion by interfacial polymerization.The phase change microcapsule emulsion was finished on the surface of the pure cotton woven fabric by padding method to obtain the phase change microcapsule thermostat fabric.The performance,especially the thermal performance of the

关 键 词：相变材料 调温面料 有限元仿真 数值模拟 

分 类 号：TS195.644[轻工技术与工程—纺织化学与染整工程]