PDF全文下载：2017050056
王希玮， 刘延磊， 赵健*
(青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛 266042)
摘要： 以超临界CO2为介质，乙二醇为还原剂，将分散在聚苯乙烯基体中的氧化石墨烯（GO）还原，制备石墨烯/聚苯乙烯复合材料，并研究了超临界压力、温度、还原时间和还原剂用量等几个关键因素对还原程度的影响，探究了氧化石墨烯的还原程度与复合材料的导电性的基本规律。研究表明：在温度为130 ℃，压力15 MPa条件下乙二醇还原处理24 h后，复合材料中氧化石墨烯的含氧官能团大幅降低，复合材料的导电性较还原前可增加90%以上。
关键词： 石墨烯； 还原程度； 导电性； 石墨烯/聚苯乙烯复合材料
中图分类号： O 644.22文献标志码： A
引用格式：王希玮， 刘延磊， 赵健. 原位还原法制备石墨烯/聚苯乙烯复合材料及其性能\[J\]. 青岛科技大学学报（自然科学版）， 2017， 38（5）： 56-60.
WANG Xiwei, LIU Yanlei, ZHAO Jian. Preparation and properties of graphene/polystyrene composites prepared in situ reduction\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2017, 38(5)： 56-60.
Preparation and Properties of Graphene/Polystyrene
Composites Prepared in Situ Reduction
WANG Xiwei, LIU Yanlei, ZHAO Jian
(Key Laboratory of Rubber-Plastics, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: In this experiment, the supercritical CO2 as the medium and ethylene glycol as the reducing agent, the graphene oxide(GO) dispersed in the polystyrene(PS) matrix was reduced, prepared the graphene/polystyrene composite materials. The influence of several critical factors, such as supercritical pressure, temperature, reduction time and reducing agent dosage on reduction degree was investigated. And the relationships and rules of degree reduction of graphene oxide with composite conductivity were explored. The results show that the oxygen-containing functional groups of graphene oxide in the composite is significantly reduced under the condition of 130 ℃, 15 MPa and 24 h. And the conductivity of the composite materials compared to the non-oxidation can be increased by 90%.
Key words: graphene; reduction degree; conductivity; graphene/polystyrene composite
收稿日期： 2016-04-05
基金项目： 国家自然科学基金项目（51373088）.
作者简介： 王希玮（1991—），女，硕士研究生.*通信联系人.
文章编号： 1672-6987（2017）05-0056-05； DOI： 10.16351/j.1672-6987.2017.05.01
