原位制备还原氧化石墨烯增强环氧树脂基复合材料及其形状记忆性能

张志毅; 张焕; 寿金泉; 孙友谊; 刘亚青

原位制备还原氧化石墨烯增强环氧树脂基复合材料及其形状记忆性能

中北大学山西省高分子复合材料工程技术研究中心, 山西太原 030051

基金项目: 国家自然科学基金(11202006).

详细信息

作者简介:
张志毅,博士,副教授.E-mail:zhiyzhang@sohu.com

通讯作者:
孙友谊,教授.E-mail:syyi2010@163.com;刘亚青,教授.E-mail:lyq@nuc.edu.cn

中图分类号: TB332
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出版历程
- 收稿日期: 2015-04-21
- 录用日期: 2015-11-10
- 修回日期: 2015-08-03
- 刊出日期: 2015-10-28

Preparation of reduced graphene oxide-reinforced epoxy resin composites and their shape memory properties

Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan 030051, China

Funds: National Natural Science Foundation of China(11202006).

摘要

摘要: 采用原位法制备不同含量还原氧化石墨烯(rGO)/环氧树脂(EP)复合材料。研究rGO含量对rGO/EP复合材料力学性能和形状记忆性能的影响。结果表明,通过溶剂热还原,填充到环氧树脂单体中的GO原位还原成rGO,并可均匀分散在EP基体中。该复合材料的拉伸强度、弹性模量和储能模量均随rGO含量增加呈先升后降态势,在w(rGO)=0.2%(相对于环氧树脂的质量而言)时相对最大;随着rGO含量增加,复合材料的玻璃化转变温度随之增加。当w(rGO)=0.6 %时,玻璃化转变温度T_g相对纯环氧树脂提高约45℃,达到102℃,热稳定性显著提高。相应的复合材料具有良好的形状记忆性能,变形可以完全恢复,且rGO/EP复合材料相对纯环氧树脂具有更高的形状固定率与形状恢复温度。
- 还原氧化石墨烯 /
- 环氧树脂 /
- 原位制备 /
- 力学性能 /
- 形状记忆
Abstract: Novel shape memory composites based on reduced graphene oxide (rGO)-reinforced epoxy resin (EP) composites were prepared by a solution mixing and solvothermal reduction method. The effect of rGO content on the mechanical and shape memory properties of the rGO/EP composites was investigated. Results showed that the GO uniformly dispersed in the EP matrix was reduced in-situ to rGO by the solvothermal reduction. The composite had the maximum tensile strength and modulus when the mass fraction of rGO was 0.2%. When the mass fraction of rGO was 0.6%, the glass transition temperature (T_g) of the composite was 102℃, 45℃ higher than that of pure EP, and the corresponding composite has a good shape memory property with its deformation fully recovered.
- Reduced graphene oxide /
- Epoxy resin /
- In-situ preparation /
- Mechanical property /
- Shape memory property

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