静电对喷制备疏水聚氨酯纳米纤维膜及其性能表征

发布时间：2018-01-29 11:12

本文关键词： 静电对喷聚氨酯纳米纤维膜疏水性机械性能　出处：《现代纺织技术》2017年06期 　论文类型：期刊论文

【摘要】：为获得疏水性较好且具有一定机械性能的聚氨酯(PU)纳米纤维膜,将不同质量分数的聚氨酯纺丝液进行粘度测试并纺丝,建立质量分数与溶液增比粘度、纤维形态的关系,将不同质量分数的纺丝液进行静电对喷制备出表面具有不同粗糙度的纳米纤维膜,并对其疏水性能、机械性能进行测试分析。结果表明:高质量分数的纺丝液提升纳米纤维膜的机械性能,较低质量分数的纺丝液提升表面粗糙度;表面越粗糙,疏水性越好,质量分数为4%+18%的纺丝液进行静电对喷时,接触角能够达到140.33°;纺丝液质量分数越大,静电对喷时机械性能越好,质量分数为18%+18%的纺丝液进行静电对喷时,纳米纤维膜的最大载荷为1.082 9 MPa。
[Abstract]:In order to obtain polyurethane (PUU) nanofiber film with good hydrophobicity and mechanical properties, the viscosity of polyurethane spinning solution with different mass fraction was tested and spun, and the viscosity of polyurethane fiber with different mass fraction and solution increasing ratio was established. According to the relationship of fiber morphology, nano-fiber film with different surface roughness was prepared by electrostatic spraying of spinning solution with different mass fraction, and the hydrophobicity of the film was also studied. The mechanical properties were tested and analyzed. The results showed that the mechanical properties of nano-fiber films were promoted by high mass fraction spinning solution, and the surface roughness was raised by low mass fraction spinning solution. The rougher the surface, the better the hydrophobicity. The contact angle can reach 140.33 掳when the spinning solution with a mass fraction of 4% 18% is sprayed on electrostatic. The higher the mass fraction of spinning solution, the better the mechanical properties of electrostatic spraying. The maximum load of nano-fiber film is 1.0829 MPa when spinning solution with 18% 18% mass fraction is sprayed by electrostatic.
【作者单位】：浙江理工大学服装学院;浙江理工大学浙江省服装工程技术研究中心;
【基金】：浙江理工大学2015年度研究生创新研究项目(YCX15014)
【分类号】：TB383.2;TQ340.64
【正文快照】： 自然界给予人们物质的馈赠外,也为研究者们提供了很多的灵感,其中荷叶、银泽菊叶、水稻叶等自清洁现象给人们很大的启迪,在此基础上人们总结了制备疏水材料的两种思路,一是在用低表面能物质进行修饰,二是增大材料表面的粗糙度[1]。只通过负载或引入低表面能的物质或基团,对

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