氮化硼/聚氨酯织物涂层制备及其凉感性能  

Preparation of boron nitride polyurethane fabric coating and its cooling performance

作　　者：张骏 李雨涛 陈晓龙 杨雷[1,2] 沈一峰[1,2] 江芳 ZHANG Jun;LI Yutao;CHEN Xiaolong;YANG Lei;SHEN Yifeng;JIANG Fang(College of Textile Science and Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China;Zhejiang Sci-Tech University Shaoxing Keqiao Research Institute Co.,Ltd.,Shaoxing 312000,China;College of Sciences,Shanghai University,Shanghai 200444,China)

机构地区：[1]浙江理工大学纺织科学与工程学院,杭州310018 [2]浙江理工大学绍兴柯桥研究院有限公司,浙江绍兴312000 [3]上海大学理学院,上海200444

出　　处：《现代纺织技术》2023年第3期203-211,共9页Advanced Textile Technology

基　　金：浙江理工大学科研启动基金项目(21202298-Y);浙江理工大学优博专项(11150131721906);浙江理工大学绍兴柯桥研究院博士后项目(KYY2022003B)。

摘　　要：为了获得具有优异降温性能的凉感织物,通过“接枝改性-高分子交联-涂层固载”策略制备功能化氮化硼(FBN)水性聚氨酯(WPU)涂层整理的复合凉感织物,通过棉织物的接枝改性以及功能涂层中高分子的交联耦合作用,提高功能涂层与棉织物之间的粘合力,研究功能涂层的导热性能、散热能力对复合织物性能的影响。结果表明:通过引入具有优异热管理性能的导热聚合物基功能涂层,得到性能优良的复合凉感织物,该织物接触凉感系数达到0.220 J/(cm^(2)·s),导热率达到3.1 W/(m·K),导热提升率为811%,透气率为427 mm/s。With the continuous improvement of people's living standards,people's demand for clothing has undergone a more diversified transformation.The diversity of consumption makes the market put forward more requirements for the functionality of fabrics.At present,some consumers are more concerned about the softness,wrinkle resistance,and windproof or waterproof performance of clothing,while others are more concerned about the breathable perspiration,cool,and anti-ultraviolet ability of clothing.With the aggravation of global warming,summer extreme temperatures and duration continue to increase,and more and more people realize the importance of fabric heat dissipation ability.Up to now,most of the methods used to improve the heat dissipation capacity of fabrics are to change the fabric structure,increase the heat dissipation porosity,and obtain functional fabrics by adding cool fibers prepared by thermally conductive materials or constructing thermally conductive coating by the grafting load to increase the surface thermal conductivity.However,the former tends to lose the mechanical properties of the fabric due to the increase of voids and has the defects of high energy consumption,high cost,long process,and low efficiency in the spinning process.Therefore,more and more attention would be paid to improving the thermal conductivity of fabrics by grafting loading.In order to effectively improve the cooling performance ofthe fabric,the thermally conductive coating constructed by boron nitride(BN)/polyurethane(PU)was studied to improve the cooling effect of cotton fabrics.Starting from the two-dimensional layered thermally conductive material BN,firstly,functionalized BN(FBN)was prepared with ultrasonic stripping as the thermally conductive filler of the functional coating.Then,the cotton fabric was grafted with a silane coupling agent to obtain the modified cotton fabric with abundant hydrogen bonds and active groups on the surface,which is convenient for the effective adhesion of subsequent coatings.Finally,the aqueous PU

关 键 词：氮化硼 聚氨酯 功能涂层 取向结构 导热性能 凉感织物 

分 类 号：TS195[轻工技术与工程—纺织化学与染整工程]