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首页> 外文期刊>Journal of Applied Polymer Science >Glass fiber coated with graphene constructed through electrostatic self-assembly and its application in poly(lactic acid) composite
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Glass fiber coated with graphene constructed through electrostatic self-assembly and its application in poly(lactic acid) composite

机译：静电自组装包覆石墨烯的玻璃纤维及其在聚乳酸复合材料中的应用

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摘要

A method to construct glass fiber/graphene material via the electrostatic self-assembly was proposed. The graphene oxide (GO) nanosheets were firstly prepared from graphite according to Hummer's methods. Oppositely charged GO is successfully introduced to the surface of the GF cationized by 3-aminopropyltriethoxysilane (APTES) treatment in the solution with mild agitation. Sequently, glass fibers coated with graphene (GF/CRG) were obtained after chemical reduction. The graphene content was characterized by TGA and XPS tests and the value of about 0.7 wt % was obtained. Composites of poly(lactic acid) and GF/CRG were prepared through melt blending. Thermogravimetric analysis (TGA) results shows that more than 50% graphene remains on the surface of GF after processing, which indicates a strong binding between GF and graphene. GF/CRG has significant influences on crystallization and mechanical property of PLA: the crystallinity of PLA increases from 27.61 to 51.29%; the tensile strength of the PLA-GF/CRG composite is about 63% larger than the pure PLA at the GF/CRG content of 10 wt %. This new method can apply to making composites with high performance. (c) 2015 Wiley Periodicals, Inc.
机译：提出了一种通过静电自组装法制备玻璃纤维/石墨烯材料的方法。氧化石墨烯（GO）纳米片首先根据悍马的方法由石墨制成。通过3-氨基丙基三乙氧基硅烷（APTES）处理，在温和搅拌下将带正电荷的GO成功引入到阳离子化的GF表面。随后，在化学还原后获得了涂覆有石墨烯的玻璃纤维（GF / CRG）。石墨烯含量通过TGA和XPS测试表征，并且获得约0.7重量％的值。通过熔融共混制备了聚乳酸和GF / CRG的复合材料。热重分析（TGA）结果表明，加工后GF表面上保留了超过50％的石墨烯，这表明GF与石墨烯之间有很强的结合力。 GF / CRG对PLA的结晶和力学性能有重要影响：PLA的结晶度从27.61％增加到51.29％; GF / CRG含量为10 wt％时，PLA-GF / CRG复合材料的拉伸强度比纯PLA约大63％。这种新方法可应用于制造高性能复合材料。 （c）2015年威利期刊有限公司

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