常压等离子体改良涤纶与石墨烯结合牢度研究
发布时间：2019-05-12 04:24
【摘要】：随着石墨烯的快速发展,由于石墨烯材料的优异特性,其被广泛应用于各项应用。其中制备石墨烯纺织材料的研究也不少,但关键是石墨烯和纺织品结合牢度较低,本文研究用接枝的方式改良石墨烯与涤纶织物的结合牢度。本文以涤纶非织造布为基材,利用常压等离子体处理方法,在涤纶非织造布表面上引入含氮基团,与氧化石墨烯含有的羧基发生反应,使氧化石墨烯接枝到涤纶上,然后还原织物表面的氧化石墨烯,即石墨烯接枝到涤纶上,制备成涤纶-石墨烯复合材料。本文采用XPS和二探针法研究了等离子体处理涤纶非织造布的时间对织物表面含氮量及其导电性能的影响;并且用耐水洗测量标准研究了等离子体处理对石墨烯与涤纶结合牢度的影响;研究了等离子体处理时间、还原时间等条件对织物的导电性和结合牢度的影响,确定实验条件;为了直观和准确的观测织物的结合牢度,实验通过测静态接触角的间接测试方法进行了衡量。通过实验得到以下结论:1.常压等离子接枝的方法制备的石墨烯-涤纶复合材料的导电性和结合牢度比浸渍方法制备的复合材料的性能高。2.通过实验确定了制备织物的方法和工艺条件,研究发现等离子处理时间和还原时间对电学性能和结合牢度都有较大的影响。采用第一层接枝石墨烯,第二、三两层浸渍的方法制备成三层石墨烯-涤纶复合材料,其中还原氧化石墨烯的时间定为1h。3.确定了最佳常压等离子体处理时间为120s。随着常压等离子体处理时间由30s逐步增加到300s,其织物表面电阻先减小后增大;耐水洗性能先增大后减小;且结合牢度先增加后减小。4.石墨烯-涤纶复合材料的含氨基量和导电性能测试结果说明接枝的石墨烯-涤纶复合材料有较好的结合牢度。
[Abstract]:With the rapid development of graphene, graphene is widely used in various applications because of its excellent properties. There are many researches on the preparation of graphene textile materials, but the key point is that the binding fastness of graphene and textile is low. In this paper, the binding fastness of graphene to polyester fabric was improved by grafting. In this paper, using polyester nonwovens as substrate, nitrogen-containing groups were introduced on the surface of polyester nonwovens by atmospheric pressure plasma treatment, and reacted with Carboxyl groups contained in graphene oxide to graft graphene oxide onto polyester. Then the graphene oxide on the surface of the fabric was reduced, that is, graphene was grafting onto polyester to prepare polyester-graphene composites. In this paper, the effect of plasma treatment time on nitrogen content and electrical conductivity of polyester nonwovens was studied by XPS and two probe methods. The influence of plasma treatment on the binding fastness of graphene to polyester was also studied, and the effects of plasma treatment time and reduction time on the conductivity and binding fastness of the fabric were also studied, and the experimental conditions were determined. In order to observe the binding fastness of fabric intuitively and accurately, the experiment is measured by the indirect test method of static contact angle. The following conclusions are obtained by experiment: 1. The conductivity and bond fastness of graphene-polyester composites prepared by atmospheric pressure plasma grafting are higher than those prepared by dipping method. 2. The method and technological conditions of preparing fabric were determined by experiments. It was found that plasma treatment time and reduction time had great influence on electrical properties and binding fastness. Three-layer graphene-polyester composites were prepared by grafting graphene in the first layer and impregnating in the second and third layers. The reduction time of graphene oxide was determined to be 1 h. 3. The optimum atmospheric pressure plasma treatment time was determined to be 120s. With the increase of plasma treatment time from 30s to 300s, the surface resistance of the fabric decreases first and then increases, the washing resistance increases first and then decreases, and the binding fastness increases first and then decreases. 4. The test results of amino content and electrical conductivity of graphene-polyester composites show that the grafting graphene-polyester composites have good bonding fastness.
【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB332
本文编号：2475104
[Abstract]:With the rapid development of graphene, graphene is widely used in various applications because of its excellent properties. There are many researches on the preparation of graphene textile materials, but the key point is that the binding fastness of graphene and textile is low. In this paper, the binding fastness of graphene to polyester fabric was improved by grafting. In this paper, using polyester nonwovens as substrate, nitrogen-containing groups were introduced on the surface of polyester nonwovens by atmospheric pressure plasma treatment, and reacted with Carboxyl groups contained in graphene oxide to graft graphene oxide onto polyester. Then the graphene oxide on the surface of the fabric was reduced, that is, graphene was grafting onto polyester to prepare polyester-graphene composites. In this paper, the effect of plasma treatment time on nitrogen content and electrical conductivity of polyester nonwovens was studied by XPS and two probe methods. The influence of plasma treatment on the binding fastness of graphene to polyester was also studied, and the effects of plasma treatment time and reduction time on the conductivity and binding fastness of the fabric were also studied, and the experimental conditions were determined. In order to observe the binding fastness of fabric intuitively and accurately, the experiment is measured by the indirect test method of static contact angle. The following conclusions are obtained by experiment: 1. The conductivity and bond fastness of graphene-polyester composites prepared by atmospheric pressure plasma grafting are higher than those prepared by dipping method. 2. The method and technological conditions of preparing fabric were determined by experiments. It was found that plasma treatment time and reduction time had great influence on electrical properties and binding fastness. Three-layer graphene-polyester composites were prepared by grafting graphene in the first layer and impregnating in the second and third layers. The reduction time of graphene oxide was determined to be 1 h. 3. The optimum atmospheric pressure plasma treatment time was determined to be 120s. With the increase of plasma treatment time from 30s to 300s, the surface resistance of the fabric decreases first and then increases, the washing resistance increases first and then decreases, and the binding fastness increases first and then decreases. 4. The test results of amino content and electrical conductivity of graphene-polyester composites show that the grafting graphene-polyester composites have good bonding fastness.
【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB332
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