碳纳米管的功能化及其环氧树脂纳米复合材料性能研究

发布时间：2018-01-04 07:32

本文关键词：碳纳米管的功能化及其环氧树脂纳米复合材料性能研究　出处：《绝缘材料》2016年01期 　论文类型：期刊论文

【摘要】：采用长径比不同的羧基功能化碳纳米管(C-MWCNTs)和环氧基功能化碳纳米管(E-MWCNTs)对环氧树脂进行改性。利用扫描电子显微镜表征功能化前后MWCNTs在丙酮中的分散情况以及复合材料冲击断面的微观形貌,利用傅里叶红外光谱仪对功能化前后MWCNTs进行表征,测试了复合材料的力学性能和热性能。结果表明:当C-MWCNTs_(1020)、C-MWCNTs_(4060)掺杂量分别为0.6%和0.8%时,复合材料的冲击强度达到最大值,比未掺杂MWCNTs的环氧树脂分别提高了54.9%和60.8%;在MWCNTs掺杂量相同时,E-MWCNTs_(4060)/EP的力学性能和热性能均优于C-MWCNTs_(4060)/EP。
[Abstract]:Carboxyl functionalized carbon nanotubes with different aspect ratios (C-MWCNTs) and epoxy functionalized carbon nanotubes (E-MWCNTs) were used. Epoxy resin was modified. The dispersion of MWCNTs in acetone before and after functionalization was characterized by scanning electron microscopy (SEM). MWCNTs was characterized by Fourier transform infrared spectroscopy (FTIR), and the mechanical and thermal properties of the composites were tested. The results showed that: when C-MWCNTs1020). When C-MWCNTs4060) doping amounts were 0.6% and 0.8respectively, the impact strength of the composites reached the maximum. Compared with the undoped MWCNTs epoxy resin, it increased by 54.9% and 60.8%, respectively. The mechanical and thermal properties of E-MWCNTsC / EP are superior to those of C-MWCNTsC / EP / EP when the doping amount of MWCNTs is the same.
【作者单位】：哈尔滨理工大学材料科学与工程学院;哈尔滨理工大学工程电介质及其应用技术教育部重点实验室;
【基金】：黑龙江省电介质工程国家重点实验室培育基地前沿项目(DE2012B02)
【分类号】：TB33
【正文快照】： 0引言含有大量环氧基和醚键的环氧树脂(EP)与大多数填充、增强材料都有较好的粘结力,且固化时无低分子物析出,固化物成型收缩率小,尺寸稳定性好,耐酸碱及耐溶剂腐蚀性强,因而在制备先进复合材料方面占据重要地位,被广泛应用于航空、航天、建筑、机械、电子电讯、车辆工程等领

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