通过液滴凝结法和熔融混合法获得石墨烯分散良好的强韧石墨烯/聚氯乙烯复合材料

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2024-09-18 DOI:10.1016/j.coco.2024.102083

Taotao Wang , Xiang Gao , Mang Zhu , Jian Wu , Ningzhong Bao

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引用次数: 0

摘要

为了制备强韧的还原型氧化石墨烯（rGO）/聚氯乙烯（PVC）复合材料，利用均匀的 GO/PVC 分散液，通过滴加凝结法制备了具有良好分散性的 GO/PVC 颗粒。然后，通过还原 GO 与 VC 并熔融共混，得到 rGO/PVC 复合材料。在 GO 含量较低（GO:PVC = 0.2:100）的情况下，rGO/PVC 复合材料的拉伸强度、断裂伸长率、杨氏模量和韧性分别提高了 100.1%、102.4%、179.1% 和 432.3%。此外，GO 含量较高的 rGO/PVC 颗粒（GO:PVC = 1:100）被用作商用 PVC 基木塑复合材料（WPC）的功能母料。只需 0.07 wt% 的 GO（相对于 WPC），WPC 的拉伸强度、断裂伸长率、杨氏模量和韧性就分别提高了 62.4 %、75.4 %、57.2 % 和 236.3 %。这项研究提供了一种简单的方法来获得强度和韧性更高的石墨烯/PVC 复合材料，并将其应用于工业领域。

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Strong and tough graphene/PVC composites with well dispersed graphene via dropwise coagulation and melt blending methods

Toward strong and tough reduced graphene oxide (rGO)/poly(vinyl chloride) (PVC) composites, GO/PVC particles with well dispersed GO are prepared via dropwise coagulation using homogenous GO/PVC dispersion. Then, rGO/PVC composite materials are obtained by reducing GO with VC and melt blending. With low GO content by weight (GO:PVC = 0.2:100), the rGO/PVC composite's tensile strength, elongation at break, Young's modulus and toughness are increased by 100.1 %, 102.4 %, 179.1 % and 432.3 %, respectively. Further, the rGO/PVC particles with high GO content (GO:PVC = 1:100) are applied as functional masterbatch for commercial PVC-based wood plastic composite (WPC). With only 0.07 wt% GO (relative to WPC), the tensile strength, elongation at break, Young's modulus and toughness of WPC are enhanced by 62.4 %, 75.4 %, 57.2 % and 236.3 %, respectively. This study provides a simple approach to obtain strong and tough graphene/PVC composites toward industrial application.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.