【作者】 赵东林； 乔仁海； 沈曾民；

【Author】 Zhao Donglin Qiao Renhai Shen Zengmin(The Key Laboratory of Science and Technology of Controllable ReactionsBUCT, Ministry of Education; Institute of Carbon Fiber and Composites,Beijing University of Chemical Technology, Beijing, 100029)

【机构】 北京化工大学可控化学反应科学与技术基础教育部重点实验室碳纤维及复合材料研究所；

【摘要】 用竖式炉流动法,以二茂铁为催化剂、硫为助催化剂、苯为碳源制备了碳纳米管。用T300连续碳纤维和多壁碳纳米管为增强体、环氧树脂为基体,制备了单向碳纤维与碳纳米管增强的树脂基复合材料,并研究了复合材料的力学性能,碳纤维的体积分数为60%。基体中碳纳米管含量为0时,复合材料的断裂强度为1430 MPa,模量为118 GPa;基体中碳纳米管含量为1%时,复合材料的断裂强度为1450 MPa,模量为166 GPa;基体中碳纳米管含量为3%时,复合材料的断裂强度为1780 MPa,模量为164 GPa;基体中碳纳米管含量为5%时,复合材料的断裂强度为1120 MPa,模量为126 GPa。基体中碳纳米管含量为3%时,复合材料的力学性能最好。更多还原

【Abstract】 The carbon nanotubes (CNTs) were prepared by catalytic decompose of benzene using floating transition method at 1100 -1200℃ Benzene was used as carbon source and ferrocene as catalyst with thiophene. The carbon nanotubes were straight with diameter 20 -50 nm, internal diameter 10 -30 nm and length 50 -1000 μm. The carbon nanotube and continuous carbon fiber (T300) reinforced unidirectional epoxy resin matrix composites was fabricated. The carbon fiber volume fraction was 60%. The mechanical properties of the composites were investigated under bending, shear, and im- pact loading. The values of flexural strength are 1430 MPa with 0 % CNTs and 1450 MPa with 1% CNTs and 1780 MPa with 3% CNTs and 1120 MPa with 5% CNTs at room temperature. The values of flexural modulus are 118 GPa with 0% CNTs and 166 GPa with 1% CNTs and 164 GPa with 3% CNTs and126 GPa with 5% CNTs.更多还原