纺织学报 ›› 2016, Vol. 37 ›› Issue (09): 16-20.

• 纤维材料 • 上一篇    下一篇

双组分橘瓣型纺粘水刺材料的过滤和力学性能

  

  • 收稿日期:2015-09-29 修回日期:2016-05-23 出版日期:2016-09-15 发布日期:2016-09-19

Filtration and mechanical performance of orange petal shape bicomponent spunbond-spunlace nonwoven materials

  • Received:2015-09-29 Revised:2016-05-23 Online:2016-09-15 Published:2016-09-19

摘要:

为获得过滤和力学综合性能优异的双组分橘瓣型纺粘水刺材料,采用单因素试验方法研究了纤网面密度对纺粘水刺非织造材料孔径、过滤性能、拉伸性能以及撕裂性能的影响,并对其结构形貌进行观察分析。结果表明:双组分纤维呈中空橘瓣状,纺粘水刺材料表面纤维大部分裂离为超细纤维,中间层纤维基本为完整的中空结构;纺粘水刺材料的平均孔径为7 ~ 10 μm,且随着纤网面密度的增大而逐渐减小,过滤效率对应提高;纤网面密度对纺粘水刺材料的纵横向拉伸强力、断裂伸长率和撕裂强力影响显著,随着纤网面密度的提高,上述力学性能指标均逐渐增大,但受到铺网加工方式影响,纺粘水刺材料的纵横向力学性能差异仍较大。

关键词: 双组分纤维, 纺粘水刺布, 过滤性能, 力学性能

Abstract:

In order to achieve orange petal shape bicompinent spunbond-spunlace nonwovens with excellent comprehensive filtration and mechanical properties, single factor experiment was adopted to investigate the influence of fiber web density on pore size, filter performance, tensile properties and tear properties of the bicomponent nonwovens, The surface and cross-section morphologies of bicomponent fibers and spunbond-spunlace nonwovens were also observed. The results show that the cross section morphologies of bi-component fibers was orange petal shape, and the fibers in surface of nonwovens were mostly split into superfine fibers, while the intermediate fibers kept complete hollow structure.  The mean pore size of bicomponent spunbond-spunlace nonwovens was between 7 and 10 μm and decreased with increase of web density, and the filtration efficiency increased correspondingly. The web density had remarkable influence on the longitudinal and lateral tensile, elongation and tearing properties of bicomponent spunbond-spunlace nonwovens. With the increase of the webdensity, the above mechanical properties were all enhanced, but these properties also existed difference between longitudinal and lateral directions due to the web peocessing method.

Key words: bicomponent fiber, spunlace nonwoven, filtration property, mechanical property

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