基于同质涂层法制备疏水导电聚酯织物的研究

发布时间：2018-07-24 19:05

【摘要】：聚酯纤维(PET)作为合成纤维的最大品种之一,在19世纪问世后发展迅速。我国已成为全球聚酯纤维生产大国,随着聚酯纤维的发展,在其改性技术上也在不断发展,聚酯纤维的多样化、新型化、高功能化以及高性能化一直是人们关注的重点。聚酯纤维具有优异的综合性能,对其功能化改性研究不断发展,本文以研究疏水导电改性聚酯织物为重点。本文以同质涂层法改性聚酯织物为基础,加入导电粒子炭黑以赋予同质涂层织物导电性能。制备了表面电阻在几百欧的导电聚酯织物。并对导电织物的水洗性能,力学性能,热力学性能进行了研究。实验结果表明,所得同质涂层导电聚酯织物的表面电阻可达几百欧,耐水洗性能、力学性能、耐热性能良好。在同质涂层的基础上,利用溶剂诱导结晶的原理,采用溶解-析出的方法,制备了具有微纳米结构的粗糙表面,赋予聚酯织物疏水性能。研究了同质涂层中聚酯的含量以及溶剂处理时间对织物疏水性能的影响。实验结果表明,聚酯织物的水接触角达到140°左右,并具有良好的耐热性能、力学性能。在同质导电涂层聚酯织物基础上,沿用以上溶解-析出的方法,制备了性能良好的疏水导电聚酯织物。研究了同质涂层中聚酯、炭黑的含量以及溶剂处理时间对疏水导电性能的影响。得到了最佳的处理工艺,所得的疏水导电聚酯织物表面电阻在几百欧,水接触角在140°左右。在上述疏水导电聚酯织物的基础上,通过控制溶剂诱导结晶过程以提高织物的疏水性能,使织物的接触角达到150°左右。探究了溶剂处理温度、溶剂的浓度以及溶剂处理时间对导电聚酯织物疏水性能的影响。实验结果表明,溶剂处理温度的升高在55℃-65℃时有利于溶剂诱导结晶的形成。溶剂为纯溶剂或是溶剂与水的比例在10:1时,使织物的疏水性能提高。
[Abstract]:Polyester fiber (PET), as one of the largest synthetic fibers, developed rapidly in the 19 th century. With the development of polyester fiber, the modification technology of polyester fiber has been developing. The diversification, new type, high function and high performance of polyester fiber have been the focus of attention. Polyester fiber has excellent comprehensive properties. The research on functional modification of polyester fiber has been continuously developed. This paper focuses on hydrophobic conductive modified polyester fabric. Based on the homogeneous coating modified polyester fabric, conductive particle carbon black was added to endow the homogeneous coated fabric with electrical conductivity. Conductive polyester fabric with surface resistance at several hundred ohs was prepared. The washing properties, mechanical properties and thermodynamic properties of conductive fabrics were studied. The experimental results show that the surface resistance of the homogeneous coated conductive polyester fabric is up to several hundred ohs, and the washing resistance, mechanical properties and heat resistance of the fabric are good. On the basis of homogeneous coating and the principle of solvent-induced crystallization, the rough surface with micro-nano structure was prepared by solution-precipitation method, and the hydrophobic property of polyester fabric was given. The effects of polyester content and solvent treatment time on the hydrophobic properties of fabrics were studied. The experimental results show that the water contact angle of polyester fabric is about 140 掳, and the polyester fabric has good heat resistance and mechanical properties. A hydrophobic conductive polyester fabric with good properties was prepared on the basis of homogeneous conductive polyester fabric. The effects of the content of polyester, carbon black and solvent treatment time on the hydrophobic conductivity of homogeneous coatings were studied. The optimum treatment process was obtained. The surface resistance of the hydrophobic conductive polyester fabric was several hundred European, and the water contact angle was about 140 掳. On the basis of the hydrophobic conductive polyester fabric, the hydrophobicity of the fabric was improved by controlling the solvent-induced crystallization process, and the contact angle of the fabric reached about 150 掳. The effects of solvent treatment temperature, solvent concentration and solvent treatment time on hydrophobic properties of conductive polyester fabric were investigated. The experimental results show that the increase of solvent treatment temperature is favorable to the formation of solvent-induced crystallization at 55 鈩，

本文编号：2142346