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KH550改性纳米晶纤维素增强三元乙丙橡胶
汤浩1,陈照峰1,邱宇航1,纪荣华2,胡雅3
1.南京航空航天大学材料科学与技术学院,南京 211106;2.太仓荣南密封件科技有限公司,太仓 216412;3.上海飞机设计研究院,上海 201210
摘要:
纳米晶纤维素(NCC)由于其独特的性能被广泛应用于聚合物中,但表面羟基限制了其在疏水性聚合物中的应用。对此本文采用3-氨基丙基三乙氧基硅烷(KH550)对NCC进行改性,以改善其与三元乙丙橡胶(EPDM)的相容性。傅里叶红外光谱仪(FTIR)、XRD测试结果表明:KH550可实现对NCC的改性,并能够保持原有晶体结构不被破坏,EPDM胶料的硫化和力学性能测试结果表明改性NCC的加入促进了胶料的硫化,在改性NCC添加量为6份时,EPDM硫化胶的综合力学性能最佳。
关键词:  纳米晶纤维素  改性  三元乙丙橡胶  硫化性能  力学性能
DOI:10.12044/j.issn.1007-2330.2020.04.009
分类号:TB333
基金项目:江苏省科技成果转化专项(SBA2018030113);江苏高校优势学科建设工程资助项目
Reinforcement of Ethylene Propylene Diene Monomer by Nanocrystalline Cellulose Modified KH550
TANG Hao1, CHEN Zhaofeng1, QIU Yuhang1, JI Ronghua2, HU Ya3
1.College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics,Nanjing 211106;2.Taicang Rongnan Sealing Technology Co.Ltd.,Taicang 216412;3.Shanghai Aircraft Design and Research Institute,Shanghai 201210
Abstract:
Nanocrystalline cellulose (NCC) had been widely used in polymers due to its unique properties, but the surface hydroxyl limitd its application in hydrophobic polymers.In this paper,NCC was modified by 3-aminopropyltriethoxysilane (KH550) to improve its compatibility with ethylene propylene diene monomer (EPDM). Fourier Transforminfrared spectroscopy (FTIR) and XRD test results show that NCC successfully modified by KH550 and keep the original crystal structure intact.The vulcanization and mechanical properties test results of EPDM compound show that the addition of modified NCC promotes the vulcanization and when the addition amount of modified NCC is 6phr,the comprehensive mechanical property of EPDM vulcanizate is the best.
Key words:  NCC  Modificatiaon  EPDM  Vulcanization property  Mechanical properties