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碳纳米管的尺寸及用量对天然橡胶复合材料性能的影响 预览 被引量:1

Effects of size and amount of carbon nanotubes on properties of natural rubber composites
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摘要 将碳纳米管(CNTs)添加到天然橡胶(NR)中制备了CNTs/NR复合材料,考察了CNTs的管径和用量对复合材料硫化特性、力学性能、动态力学性能和分散性的影响。结果表明,在管径相同时,随着CNTs用量的增大,复合材料的正硫化时间延长。随着CNTs用量的增大,复合材料的拉伸强度和扯断伸长率先增大后减小。相同管径件下,CNTs的用量越大,Payne效应越强,储能模量变化越大,损耗因子也越大;而在相同用量下,CNTs的管径越大,Payne效应越弱,储能模量变化越小,损耗因子也越小。当CNTs用量为15份、管径为80 nm时,其在NR基体中的分散性最好,复合材料的综合力学性能及动态力学性能最佳。 The carbon nanotubes( CNTs) / natural rubber( NR) composites were prepared using CNTs added in NR matrix,and the influence of diameter and amount of CNTs on curing characteristics,mechanical properties,dynamic mechanical properties and dispersity of the composites were investigated.The results showed that when the diameter of CNTs was the same,the optimum curing time was prolonged with increasing amount of CNTs. When the amount of CNTs increased,the tensile strength and elongation at break of the composites increased first and then decreased. Under the condition of the same diameter of CNTs,the larger the amount of CNTs,the stronger the Payne effect,and the bigger the change of storage modulus,the smaller the loss factor. Whereas the amount of CNTs was the same,the larger the diameter,the weaker the Payne effect,and the less change of storage modulus,the smaller the loss factor. The dispersity of CNTs was the best in NR matrix,and the over-all mechanical and dynamic mechanical properties of the NR composites were the optimum with CNTs amount 15 phr and diameter 80 nm.
作者 张鹏宇 康海澜 戴彩云 韩文驰 王娜 方庆红 ZHANG Peng-yu;KANG Hai-lan;DAI Cai-yun;HAN Wen-chi;WANG Na;FANG Qing-hong(a. School of Materials Science and Engineering;b. Research Center of Polymer Engineering and Technology of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China)
出处 《合成橡胶工业》 CAS CSCD 北大核心 2016年第2期150-154,共5页 China Synthetic Rubber Industry
基金 国家自然科学基金资助项目(51173110,51103086)
关键词 天然橡胶 碳纳米管 PAYNE效应 分散性 力学性能 动态力学性能 natural rubber carbon nanotube Payne effect dispersion mechanical property dynamic mechanical property
作者简介 张鹏宇(1989-),男,黑龙江齐齐哈尔人,硕士。主要从事橡胶复合材料的研究,已发表论文2篇。
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