湖羊毛非织造阻燃吸声材料的制备及其性能  

Preparation and properties of nonwoven flame retardant sound-absorbing material from Hu sheep wool

作　　者：谭启飞 陈梦莹 马晟晟 孙明祥 代春鹏 罗仑亭 陈益人 TAN Qifei;CHEN Mengying;MA Shengsheng;SUN Mingxiang;DAI Chunpeng;LUO Lunting;CHEN Yiren(School of Textile Science and Engineering,Wuhan Textile University,Wuhan,Hubei 430200,China;State Key Laboratory of New Textile Materials and Advanced Processing Technology Jointly Built by Wuhan Textile University,Wuhan,Hubei 430200,China;Hubei Zhiqinghe Agriculture and Animal Husbandry Co.,Ltd.,Yichang,Hubei 443100,China;Yichang Yiling District Agricultural Products Quality and Safety Service Center,Yichang,Hubei 443101,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430200 [2]武汉纺织大学省部共建纺织新材料与先进加工技术国家重点实验室,湖北武汉430200 [3]湖北致清和农牧有限公司,湖北宜昌443100 [4]宜昌市夷陵区农产品质量安全服务中心,湖北宜昌443101

出　　处：《纺织学报》2023年第5期147-154,共8页Journal of Textile Research

基　　金：武汉纺织大学研究生创新基金项目(20191815073010);湖北省大学生创新创业训练计划项目(201810495042)。

摘　　要：针对国内湖羊养殖规模不断壮大,但湖羊毛未能高效利用的问题,结合湖羊毛本身的性能及结构特点,采用针刺加工的方式开发一种汽车内饰吸声材料,以提高湖羊毛附加价值,保护天然资源不被浪费。通过针刺成形、缩绒整理、阻燃整理等加工过程制得吸声性能优良并具备阻燃功能的吸声材料。探究了材料的结构参数、缩绒工艺对湖羊毛非织造材料吸声性能的影响。结果表明:当湖羊毛非织造材料厚度大于3.5 mm,面密度大于350 g/m2时,在高频段(500~6 000 Hz)范围,其吸声系数大于50%,属于高效吸声材料。经阻燃整理后,湖羊毛针刺吸声材料的水平方向燃烧性能超过对汽车内饰材料阻燃标准要求(燃烧速度不大于100 mm/min),垂直方向燃烧性能达到阻燃标准要求。Objective The scale of Hu sheep breeding continues to grow,but due to the low quality of fiber,Hu sheep wool is not suitable for preparing medium and high-grade wool yarns,resulting in the low price and low industrial demand.Based on the performance and structural characteristics of Hu sheep wool,this paper explores the development of sound-absorbing material by needle punching Hu sheep wool,which represents an effort to best use natural resources.Method Hu sheep wool sound-absorbing materials were prepared by needling,milled finishing and flame retardant finishing.The processing process involves scouring→weighing→opening→carding→lapping→fleece formation→pre-needling→needling→rolling→milled-finishing→drying→flame retardant finishing→drying→finished product.The effects of structural parameters,milled process and flame retardant process on sound absorption performance were explored.Results Hu sheep wool has a distinct medullary cavity,which is a loose porous structure(Fig.2).The Hu sheep wool scales are covered with craze,and the scales are wide and cocked up obviously(Fig.3).The fibers of Hu sheep wool were entangled with each other to form a three-dimensional fiber network(Figs.4-6).The fibers winding of Hu sheep wool needled fabric after milled finishing was more compact than that before milled finishing.After flame retardant finishing,the flame retardant was attached to the fiber surface of the Hu sheep wool needle fabric.When the sound wave range was in the middle and high frequency range,the sound absorption effect of the Hu sheep wool sound absorption material was good(Fig.7).The structural parameters(thickness,surface density and average pore size)of needled sound absorbing materials had influence on sound absorption performance(Tab.3).The horizontal burning performance of the Hu sheep wool needled fabric before flame retardant finishing reached the flame retardant standard requirements,but the vertical burning speed was 276 mm/min,failing meeting the standard requirements(Fig.8).A

关 键 词：湖羊毛 针刺加工 缩绒整理 阻燃整理 结构参数 吸声性能 非织造吸声材料 

分 类 号：TS174.6[轻工技术与工程—纺织材料与纺织品设计]