梯度结构双组分纺粘水刺非织造材料的制备及其性能

doi:10.13475/j.fzxb.20170802206

摘要/Abstract

摘要：

为探究梯度结构对超细纤维非织造材料性能的影响，通过双组分纺粘技术和不同水针压力作用下的水刺开纤技术，用一步法制备了不同面密度（80、120、160 g/m2 ）的梯度结构双组分纺粘水刺非织造材料，并分析了水针压力对结构和透气透湿、力学、过滤性能的影响。结果表明：当面密度一定时，随着水针压力从15 MPa 的增大到28 MPa，双组分纺粘水刺非织造材料的厚度减小，平均孔径减小，透气透湿性能下降；纵/横向断裂强力先增加后减小，断裂伸长率先减小后增加；过滤效率和过滤阻力均增加，其中当面密度为80 g/m2 ，水针压力为11MPa 时，过滤效率（0.85 μm 粒径）和过滤阻力分别达到66.8%和25.1 Pa。

关键词: 超细纤维, 梯度结构, 纺粘水刺, 非织造材料

Abstract:

In order to study the influence of gradient structure on the properties of microfiber nonwoven materials, bicomponent spunbond-spunlance nonwoven materials with different weight (80, 120, 160 g/m2) were prepared by bicomponent spunbond technology and spunlace technology under different hydroentangling pressure. The influences of hydroentangling pressure on air permeability, water vapor permeability, mechanical properties and filtration performance were investigated. The results showed that the thickness, mean pore size, air permeability and water vapor permeability decreased with increase hydroentangling pressure of from 15 MPa to 28 MPa at the same weight. The tensile strength increased with the increase of hydroentangling pressure and then decreased, and the elongation at break was in opposite trend. The filtration efficiency and filtration resistance increased with the increase of hydroentangling pressure. When the weight is 80 g/m2 and hydroentangling pressure is 22 MPa, the filtration efficiency (paticle size with 0.85 μm ) and filtration resistance were 66.8% and 25.1 Pa, respectively.

Key words: microfiber, gradient structure, spunbond-spunlance, splitting, nonwoven material

赵宝宝钱幺钱晓明范金土朵永超. 梯度结构双组分纺粘水刺非织造材料的制备及其性能[J]. 纺织学报, 2018, 39(05): 56-61.

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