MGOs/MSFCM协同增强PF力学性能研究  

Mechanical Properties of MGOs/MSFCM Synergy Reinforced PF

作　　者：王武[1] 韦春[1] 黄绍军[1] 苏乐[1] 

机构地区：[1]桂林理工大学广西矿冶与环境科学实验中心、材料科学与工程学院,广西桂林541004

出　　处：《现代塑料加工应用》2014年第1期4-7,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金(21264005,21204013,51263005,51163003);广西自然科学基金(2013GXNSFDA019008)资助

摘　　要：分别采用经γ-氨丙基三乙氧基硅烷(KH550)改性的氧化石墨烯(MGOs)和剑麻纤维素微晶(MSFCM)与酚醛树脂(PF)进行熔融共混,通过辊炼、模压成型方法制备MGOs-MSFCM/PF复合材料,研究MGOs的含量对MGOs-MSFCM/PF复合材料的力学、应力松弛、蠕变及摩擦性能的影响。结果表明:与MSFCM/PF复合材料相比,经过MGOs-MSFCM协同增强的PF复合材料的力学、蠕变和应力松弛性能均有明显提高,且当MGOs质量分数为3%时,MGOs-MSFCM/PF复合材料的冲击强度、弯曲强度、弯曲模量、松弛模量分别提高了13.2%,14.1%,27.8%,19.5%。Graphene oxide sheets modified by γ-aminopropyl triethoxysilane （MGOs）/ sisal fiber cellulose microcrystal modified by γ-aminopropyl triethoxysilane （MSFCM） / phenolic formaldehyde （PF） composites were prepared by melting extruder and molding technology methods.Effects of MGOs contents on the mechanical,stress relaxation,friction and creep properties of the composites were studied.The results show that MGOsMSFCM/PF composites have higher mechanical properties,creep properties and stress relaxation performance in comparision with those of the MSFCM/PF composites.When MGOs content is 3%,impact strength,flexural strength,flexural modulus and relaxation modulus of the MGOs-MSFCM/PF composites are increased by 13.2%,14.1%,27.8% and 19.5% respectively in comparision with those of the MSFCM/PF composites.

关 键 词：剑麻纤维素微晶 氧化石墨烯 酚醛树脂 复合材料 协同作用 力学性能 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]