發(fā)布時間：2019-05-12 04:24

【摘要】：隨著石墨烯的快速發(fā)展,由于石墨烯材料的優(yōu)異特性,其被廣泛應用于各項應用。其中制備石墨烯紡織材料的研究也不少,但關鍵是石墨烯和紡織品結(jié)合牢度較低,本文研究用接枝的方式改良石墨烯與滌綸織物的結(jié)合牢度。本文以滌綸非織造布為基材,利用常壓等離子體處理方法,在滌綸非織造布表面上引入含氮基團,與氧化石墨烯含有的羧基發(fā)生反應,使氧化石墨烯接枝到滌綸上,然后還原織物表面的氧化石墨烯,即石墨烯接枝到滌綸上,制備成滌綸-石墨烯復合材料。本文采用XPS和二探針法研究了等離子體處理滌綸非織造布的時間對織物表面含氮量及其導電性能的影響;并且用耐水洗測量標準研究了等離子體處理對石墨烯與滌綸結(jié)合牢度的影響;研究了等離子體處理時間、還原時間等條件對織物的導電性和結(jié)合牢度的影響,確定實驗條件;為了直觀和準確的觀測織物的結(jié)合牢度,實驗通過測靜態(tài)接觸角的間接測試方法進行了衡量。通過實驗得到以下結(jié)論:1.常壓等離子接枝的方法制備的石墨烯-滌綸復合材料的導電性和結(jié)合牢度比浸漬方法制備的復合材料的性能高。2.通過實驗確定了制備織物的方法和工藝條件,研究發(fā)現(xiàn)等離子處理時間和還原時間對電學性能和結(jié)合牢度都有較大的影響。采用第一層接枝石墨烯,第二、三兩層浸漬的方法制備成三層石墨烯-滌綸復合材料,其中還原氧化石墨烯的時間定為1h。3.確定了最佳常壓等離子體處理時間為120s。隨著常壓等離子體處理時間由30s逐步增加到300s,其織物表面電阻先減小后增大;耐水洗性能先增大后減小;且結(jié)合牢度先增加后減小。4.石墨烯-滌綸復合材料的含氨基量和導電性能測試結(jié)果說明接枝的石墨烯-滌綸復合材料有較好的結(jié)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.
【學位授予單位】：新疆大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TB332

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本文編號：2475104