聚氨酯发泡涂层织物的制备及其隔音性能  

Preparation of polyurethane foam coated fabric and its sound insulation properties

作　　者：宋瑶瑶 李栋 徐田文 王成龙[2] 郑今欢[2] 叶挺 SONG Yaoyao;LI Dong;XU Tianwen;WANG Chenglong;ZHENG Jinhuan;YE Ting(Soyang Technical Textile(Zhejiang)Co.,Ltd,Haining 314415,China;College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江亦阳新材料有限公司,浙江海宁314400 [2]浙江理工大学纺织科学与工程学院(国际丝绸学院),杭州310018

出　　处：《现代纺织技术》2023年第3期194-202,共9页Advanced Textile Technology

基　　金：海宁市科技项目(2020016)。

摘　　要：为了开发出一款具有隔音降噪多功能的墙布面料,采用浸轧工艺对经编涤纶织物进行防水整理,使其获得一定疏水性;通过聚氨酯(PU)发泡涂层对防水基布进行功能性整理。探究了不同制备工艺参数对涂层织物的涂层剥离牢度以及隔音性能的影响,也分析了PU发泡涂层织物作为墙布面料的应用优势。结果表明:当涂层浆料配方PU用量为100 g,云母粉为30 g,热膨胀微球为2 g时,采用焙烘温度为170℃,焙烘时间为60 s,刀距为0.58 mm,制备得到的PU发泡涂层织物的涂层剥离牢度为17 N,平均隔音量可达26 dB,涂层剥离牢度及隔音性能达到综合最佳,该类防水隔音降噪多功能涂层织物在墙布市场具有广阔的应用前景。In recent years,coating finishing has become one of the important methods of functional finishing of textile materials.Coating finishing is to evenly coat the surface of the fabric with a layer of polymer compounds that can form a film,so as to change the performance and style of the fabric and improve the added value of the textile.At present,among many coating materials,water-based coating materials stand out because of their environmental protection.Specifically,waterborne polyurethane(PU)coating is a high-quality coating material with high tensile strength,good elasticity and amphiphilicity.It can be used in foaming preparation process,and the foam coated fabric is widely used.For example,soft foam is used as the padding of vehicles,rooms and clothing,and hard foam is used as heat insulation,sound absorption,packaging,insulation and low foaming synthetic wood.Therefore,it is feasible to finish the fabric with foaming coating to make it obtain a relatively soft structure and improve its sound insulation performance.In order to develop a multi-functional wall fabric with sound insulation and noise reduction,the warp knitted polyester fabric was waterproofed by padding process to obtain a certain hydrophobicity and the polyurethane(PU)foam coating was used for waterproofing functional finishing of base fabric.The effects of different preparation process parameters on the peeling fastness and sound insulation performance of the coated fabrics were explored,and the application advantages of PU foam coated fabrics as wall covering fabrics were analyzed.The results show that when the dosage of PU in the coating slurry formulation is 100 g,the mica powder is 30 g,and the thermally expandable microspheres are 2 g,the baking temperature is 170°C,the baking time is 60 s,and the knife distance is 0.58 mm,the PU foamed coating fabric is prepared,the peeling fastness of PU foaming coating fabric is 17 N,the average sound insulation amount could reach 26 dB,and the coating peeling fastness and sound insulation performance

关 键 词：聚氨酯 发泡涂层 墙布 隔音性能 剥离牢度 

分 类 号：TB34[一般工业技术—材料科学与工程]