不同矿区天然隐晶质石墨对天然橡胶性能的影响  

Effect of Natural Aphanitic Graphite from Different Mining Areas on Properties of NR

作　　者：伍江涛 高佳华 陈惠[2] 刘玉飞 刘洪涛 童曦 WU Jiangtao;GAO Jiahua;CHEN Hui;LIU Yufei;LIU Hongtao;TONG Xi(Beijing Research and Design Institute of Rubber Industry Co.,Ltd,Beijing 100143,China;Hunan University,Changsha 410082,China;South Graphite Co.,Ltd,Chenzhou 423000,China;Hunan Runzhong New Material Technology Co.,Ltd,Loudi 417503,China)

机构地区：[1]北京橡胶工业研究设计院有限公司,北京100143 [2]湖南大学,湖南长沙410082 [3]南方石墨有限公司,湖南郴州423000 [4]湖南润众新材料科技有限公司,湖南娄底417503

出　　处：《橡胶工业》2020年第7期519-522,共4页China Rubber Industry

基　　金：国家重点研发计划资助项目(2017YFB0310905)。

摘　　要：研究不同矿区天然隐晶质石墨对天然橡胶(NR)性能的影响。结果表明:隐晶质石墨对NR胶料的物理性能均有一定程度的改善,但因矿区、成矿环境、组成等不同,不同隐晶质石墨对NR胶料物理性能的影响表现出较大的差异;与未添加隐晶质石墨的NR胶料相比,添加隐晶质石墨的NR胶料物理性能总体提高;当粒径大于5μm时,隐晶质石墨在NR胶料中的用量存在临界值,其与NR之间作用较小,对NR胶料物理性能的改善有限,且存在析出现象;隐晶质石墨粒径为2μm时,添加较少的隐晶质石墨,可明显提高NR胶料的物理性能。The effect of natural aphanitic graphite from different mining areas on the properties of natural rubber(NR)was studied.The results showed that the physical properties of NR compound were improved to some extent by addition of aphanitic graphite,but the influence of different aphanitic graphite on the physical properties of NR compound was quite different due to different mining area,ore-forming environment and composition.When the particle size of aphanitic graphite was larger than 5μm,the amount of aphanitic graphite in NR compound had a critical value,the interaction between aphanitic graphite and NR was weak,the improvement of physical properties of NR compound was limited,and there was precipitation of graphite.When the particle size of aphanitic graphite was 2μm,the physical properties of NR compound could be improved obviously with only small amount of graphite.

关 键 词：隐晶质石墨 天然橡胶 矿区 物理性能 粒径 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ332