碳纳米管/橡胶复合材料的界面性能:碳纳米管的比表面积的影响  

Interfacial properties of carbon nanotubes/rubber composites: Effects of specific surface area of carbon nanotubes

作　　者：王双[1] 田晨晨 宁南英[1,2] 张立群 吕亚非[2] 田明 WANG Shuang;TIAN Chenchen;NING Nanying;ZHANG Liqun;LV Yafei;TIAN Ming(State Key Lab of Organic-Inorganic Composites,Beijing University of Chemical Technology,Beijing 100029,China;Key Laboratory of Carbon Fiber and Functional Polymers,Ministry of Education,Beijing University of Chemical Technology,Beijing 100029,China;Beijing Advanced Innovation Center for Soft Matter Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学有机无机复合材料国家重点实验室,北京100029 [2]北京化工大学碳纤维及功能高分子教育部重点实验室,北京100029 [3]北京化工大学北京软物质科学与工程高精尖创新中心,北京100029

出　　处：《复合材料学报》2021年第2期601-611,共11页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(51525301;51790501)。

摘　　要：橡胶大分子和无机纳米填料由于相互作用形成的界面是决定弹性体复合材料性能的重要因素。利用原子力显微镜的峰值力定量纳米力学映射模式(AFM-QNM)建立了碳纳米管/溶聚丁苯橡胶(CNT/SSBR)复合材料的界面纳米力学性能和界面厚度的定量表征方法,研究揭示了CNT的比表面积对CNT/SSBR复合材料的界面纳米力学性能和界面厚度的影响。结果表明,随着CNT的比表面积的增大,CNT/SSBR复合材料的界面纳米力学性能逐渐增强,界面厚度逐渐增大,这是由于CNT表面作用的橡胶大分子不动链数增加。The interface between rubber macromolecules and inorganic nano-filler is an important factor to determine the properties of elastomer composites. The peak force quantitative nanomechanical mapping mode of atomic force microscopy(AFM-QNM) was attempted to quantify the interfacial nanomechanical properties and interfacial thickness of carbon nanotubes/Soluble styrene butadiene rubber(CNT/SSBR) composites, and reveal the effects of the specific surface area of the CNT on the interfacial nanomechanical properties and interfacial thickness of CNT/SSBR composites. The results show that with the increase of specific surface area of CNT, both the interfacial nanomechanical properties and interfacial thickness of CNT/SSBR composites gradually increase, which is due to the increase in the number of immobile rubber macromolecules chains acting on the CNT surface.

关 键 词：碳纳米管 橡胶复合材料 原子力显微镜 纳米力学 比表面积 

分 类 号：TB332[一般工业技术—材料科学与工程]