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作 者:谭双美 关迎东[2] 赵帅 李琳 TAN Shuangmei;GUAN Yingdong;ZHAO Shuai;LI Lin(College of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;State Key Laboratory of Marine Coatings,Marine Chemical Research Institute Co.,Ltd.,Qingdao 266071,China)
机构地区:[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]海洋化工研究院有限公司海洋涂料国家重点实验室,山东青岛266071
出 处:《山东科学》2024年第2期55-64,共10页Shandong Science
基 金:国家自然科学基金资助项目(51603111,5170311);山东省自然科学基金面上项目(ZR2021ME107);中国博士后科学基金项目(2022M721903,2021M700553,2020M672014);建新赵氏科技股份有限公司博士后项目。
摘 要:采用单宁酸辅助液相剥离所制备的石墨烯,获得了比普通石墨烯更好的分散性,可以达到低成本、高产量和环保的要求。用硅烷偶联剂(KH550)改性处理的SiO_(2)和单宁酸修饰的石墨烯发生反应形成强杂化键,成功得到石墨烯-SiO_(2)杂化材料。研究了石墨烯-SiO_(2)杂化材料在丁苯/顺丁橡胶复合材料中的力学性能,同时还研究了将导电炭黑与石墨烯-SiO_(2)杂化材料共混后在丁苯/顺丁橡胶复合材料中的力学性能以及导电导热性能。结果表明:加入1份石墨烯-SiO_(2)杂化材料时,丁苯/顺丁橡胶复合材料获得了相对良好的耐磨性;如果负载超过1份,石墨烯填料之间会很容易发生再聚集,导致磨损体积相比于空白对照组有所增加;加入8份自制石墨烯时,电阻值降低至2×10^(6)Ω,橡胶复合材料的抗静电性能得到了明显的改善。In this paper,graphene prepared by liquid-phase stripping assisted by tannic acid achieved better dispersion than ordinary graphene.The new graphene can meet the requirements of low cost,high output,and environmental protection.Graphene-SiO_(2)hybrid materials were obtained by reacting SiO_(2)treated with silane coupling agent(KH550)modification and graphene modified with tannic acid to form strong hybridization bonds,and the success of obtaining graphene-SiO_(2)hybrid materials was confirmed by infrared spectroscopy.Furthermore,the mechanical properties of graphene-SiO_(2)hybrid material in styrene-butadiene/polybutadiene composites were studied.In addition,the mechanical properties and the electrical and thermal conductivity of the blend of conductive carbon black and graphene-SiO_(2)hybrid material in styrene-butadiene/polybutadiene composite were investigated.The results show that:at the addition of 1 part per hundred(phr)of graphene-SiO_(2)hybrid material,the butadiene/cis rubber composites obtained relatively good wear resistance,if the loading is more than 1 phr,the graphene fillers will easily reaggregate with each other,resulting in an increase in wear volume compared with the blank control group.Moreover,when 8 phrs of self-made graphene were added,the conductivity increased by 1000 times,and the antistatic properties of rubber composites were considerably improved.
关 键 词:顺丁橡胶 丁苯橡胶 导电炭黑 电导率 耐磨性能 石墨烯负载
分 类 号:TQ328[化学工程—合成树脂塑料工业]
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