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现代化工  2020, Vol. 40 Issue (6): 138-144    DOI: 10.16606/j.cnki.issn0253-4320.2020.06.029
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
茶多酚改性石墨烯增强高分子复合材料的制备与性能研究
任翔宇1, 陈惠1, 林祥宝1, 吴志刚2, 刘洪波1
1. 湖南大学材料科学与工程学院, 湖南 长沙 410082;
2. 湖南长宇科技发展有限公司, 湖南 长沙 410600
Preparation of tea polyphenol modified graphene enhanced polymer composite material and research on its performance
REN Xiang-yu1, CHEN Hui1, LIN Xiang-bao1, WU Zhi-gang2, LIU Hong-bo1
1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
2. Hunan Changyu Science and Technology Development Co., Ltd., Changsha 410600, China
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摘要 利用纯天然绿茶提取物茶多酚(TP)对氧化石墨烯(GO)进行表面接枝修饰,制备了TP修饰的石墨烯(TPG),采用机械共混和热固化成型等方法制备了TPG/高分子复合材料。通过XRD、FT-IR、TGA和XPS对TPG进行结构及性能表征;利用万能材料试验机、场发射扫描电镜(SEM)、热重与热膨胀仪研究了复合材料的力学性能、拉伸断面形貌和热稳定性能。结果表明,TP分子成功地通过酚羟基接枝到GO表面的含氧官能团上,当TPG质量分数为1.0%时,TPG/环氧树脂复合材料的热分解温度提高了22.2℃;当TPG质量分数为0.5%时,TPG/环氧树脂复合材料的拉伸强度达到59.85 MPa,提高了13.5%;当TPG质量分数为1.0%时,羧基丁腈橡胶(XNBR)的玻璃化转变温度从-20.8℃上升到-16.5℃;当TPG质量分数为2.0%时,TPG/XNBR复合材料的拉伸强度从8.10 MPa提升到12.75 MPa,增加了57.4%。
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任翔宇
陈惠
林祥宝
吴志刚
刘洪波
关键词:  氧化石墨烯  茶多酚改性  环氧树脂  羧基丁腈橡胶  力学性能    
Abstract: Tea polyphenol (TP) extracted from pure natural green tea is used to carry out surface grafting of graphene oxide (GO),therefore TP-modified graphene (TPG) is prepared.TPG/polymer composite materials are prepared by mechanical blending and thermo-curing molding.The structure and performance of TPG are characterized by X-ray diffraction (XRD),infrared spectroscopy (FT-IR),thermal reanalysis (TGA) and X-ray photoelectron spectroscopy (XPS).The mechanical properties of TPG/polymer composites are tested by using a universal material tester.The stretching section profile of the composites is observed by means of field-launched scanning mirrors (SEM),and the thermal stability of the composites is studied via thermal weight and thermal expander.Results show that TP molecules are successfully connected to the oxygen-containing functional groups on the surface of GO through phenolic hydroxyl.Thermal decomposition temperature of TPG/epoxy composites increases by 22.2℃ when the adding amount of TPG is 1.0 wt%.The tensile strength of epoxy composites increases by 13.5% to 59.85 MPa when the adding amount of TPG is 0.5 wt%.Glass conversion temperature of carboxyl nitrile rubber (XNBR) increases from -20.8℃ to -16.5℃ when the adding amount of TPG is 1.0 wt%.The tensile strength of XNBR composites increases by 57.4% from 8.10 MPa to 12.75 MPa when the adding amount of TPG is 2.0 wt%.
Key words:  graphene oxide    tea polyphenols modified    epoxy resin    carboxyl nitrile rubber    mechanical properties
收稿日期:  2019-08-28      修回日期:  2020-04-16          
ZTFLH:  TB332  
基金资助: 国家重点研发计划(2017YFB0310905);湖南省战略新兴产业(2018GK4012);湖南重大专项(2018GK1030)
通讯作者:  陈惠(1975-),女,博士,副教授,研究方向为新型炭材料,通讯联系人,hnuchh@163.com。    E-mail:  hnuchh@163.com
作者简介:  任翔宇(1994-),男,硕士研究生,研究方向为炭基复合材料,731873740@qq.com
引用本文:    
任翔宇, 陈惠, 林祥宝, 吴志刚, 刘洪波. 茶多酚改性石墨烯增强高分子复合材料的制备与性能研究[J]. 现代化工, 2020, 40(6): 138-144.
REN Xiang-yu, CHEN Hui, LIN Xiang-bao, WU Zhi-gang, LIU Hong-bo. Preparation of tea polyphenol modified graphene enhanced polymer composite material and research on its performance. Modern Chemical Industry, 2020, 40(6): 138-144.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2020.06.029  或          https://www.xdhg.com.cn/CN/Y2020/V40/I6/138
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