异纤度丙纶针刺非织造布的结构与性能测试  

Structure and performance of polypropylene needle-punched nonwoven fabrics with differential linear density

作　　者：陈曙光[1] 孙新增 徐广标[1,3] 

机构地区：[1]东华大学纺织学院,上海201620 [2]浙江严牌过滤技术股份有限公司,浙江台州317200 [3]东华大学纺织面料技术教育部重点实验室,上海201620

出　　处：《上海纺织科技》2017年第5期49-51,共3页Shanghai Textile Science & Technology

摘　　要：以不同纤度的丙纶为原料,通过改变丙纶的异纤度配比,制备了丙纶针刺非织造布,并对其表面结构、孔径分布、透气性及力学性能进行了分析。结果表明:丙纶针刺非织造布的纤网结构因小纤度丙纶的加入而变得紧密;组成丙纶针刺非织造布纤网的纤维纤度越小,孔径分布越均匀;3种丙纶针刺非织造布的平均透气量都在400 L/(m2·s)以上;在面密度基本相同的条件下,随着大纤度丙纶的加入,试样的透气量会增大;3种丙纶针刺非织造布的经向断裂强力都在900 N以上,纬向断裂强力都在1 300 N以上,随着大纤度丙纶的加入,丙纶针刺非织造布的经向断裂强力减小,纬向断裂强力基本不变。Polypropylene needl-punched nonwovens are prepared with different fineness and mixing ratio of polypropylene fibers, and the surface structure, pore size and permeability of the samples are analyzed. The results show that the web structure would become close with the addition of thinner PP fiber. The smaller the fineness is, the more uniform the pore size distribution of samples become. The average air permeability of three kinds samples is above 400 L/m^2/s and the air permeability increases with the addition of thicker PP fiber under the same areal density conditions. The breaking strength of three samples are above 900 N and 1 300 N in warp and weft respectively. The warp breaking strength decreases and the weft breaking strength maintains unchanged with the addition of thicker PP fiber.

关 键 词：针刺法非织造布 丙纶 表面结构 力学性能 

分 类 号：TS171.9[轻工技术与工程—纺织材料与纺织品设计]