熔喷/干法纤网在线复合汽车吸音棉的生产工艺The Application of Melt Blown/Dry-Laid Composite Web in Automobile Sound-Absorbing Material and its Process
辛长征,邵庆国,黄象安
XIN Chang-zheng1,2,SHAO Qing-guo3
摘要(Abstract)：
为了实现熔喷/干法纤网复合汽车吸音棉的在线生产,以开发300 g/m2的复合吸音棉为例,对熔喷工艺、干法纤网工艺以及熔喷/干法纤网在线复合等内容进行了分析介绍。结果表明:采用熔融指数150 g/min的聚丙烯切片,并控制好模头温度、热空气喷射角、热空气压力、接收距离等熔喷工艺参数,采用纤度为3.3 dtex的三维卷曲涤纶中空短纤维和阻燃涤纶短纤维组成的干法纤网,纤网加入熔喷丝的角度在75～83°之间时,能够得到较好的复合吸音棉材料。
To realize the on-line production of melt blown-dry laid composite automobile sound-absorbing material,the 300 g/m2 nonwoven is developed and the processes of melt blown fiber,dry-laid web and lamination of melt blown dry-laid web are investigated.The result indicates that the perfect composite sound-absorbing material can be obtained with following conditions: polypropylene chip with melt index 150 g/min,controlled die temperature,regulated hot air pressure and collection distance for melt blowing,the dry-laid web using 3.3 dtex three dimensional crimp PET hollow staple fiber and flame retardant PET staple fiber for dry-laid web,the jet angle of melt blown fiber with the web is 75~83°.
关键词(KeyWords)：
熔喷工艺;纤网;熔融指数;在线复合;吸音棉
melt blowing,fiber web,melt flow index,on-line lamination,sound-absorbing material
基金项目(Foundation):
作者(Author):
辛长征,邵庆国,黄象安
XIN Chang-zheng1,2,SHAO Qing-guo3
DOI: 10.16090/j.cnki.hcxw.2012.03.005
参考文献(References)：
- [1]李传兵,李克强.车内噪声控制中的结构-声场耦合模态分析方法[J].振动工程学报,2002,3(15):343-346.
- [2]刘辅庭.吸音纤维材料[J].国际纺织导报,2011(1):56-60.
- [3]易爱华,刘建勇,赵侠,等.吸音材料及其防火安全性能[J].消防技术与产品信息,2009(8):24-26.
- [4]赵永霞.非织造布在汽车中的应用发展[J].纺织导报,2011(5):38-39.
- [5]李昌稳,靳向煜,吴海波.非织造多孔降噪材料的制造工艺及新技术[J].产业用纺织品,2011(1):26-29.
- [6]岳洋,赵福全.汽车用纤维吸音材料性能研究[J].振动工程学报,2010,6(23):670-675.
- [7]杨文娟,焦晓宁.非织造布汽车吸音隔音材料的研制[J].纺织导报,2005(11):92-94.