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采用抽滤法制备了多壁碳纳米管(MWCNTs)纸(又称巴基纸),研究了巴基纸增强不同环氧基体复合材料(巴基纸复合材料)的拉伸性能及其断口形貌,分析了MWCNT含量、树脂基体拉伸性能以及巴基纸与树脂的界面黏附作用对复合材料拉伸性能的影响。结果表明:在MWCNT质量分数小于39.1%范围内,增加碳纳米管含量,可显著提高巴基纸/环氧复合材料的拉伸性能;巴基纸/环氧复合材料的拉伸强度和模量与树脂基体的性能密切相关,其拉伸破坏形式受基体的脆韧性影响显著;相比较而言,巴基纸与树脂间的黏附功对巴基纸/环氧复合材料拉伸性能的影响不明显。
Multiwalled carbon nanotubes (MWCNTs) paper (also known as Baji paper) was prepared by suction filtration method. The tensile properties and fracture appearances of Bakelite paper reinforced with different epoxy matrix composites The effect of the MWCNT content, the tensile properties of the resin matrix and the interfacial adhesion between the base paper and the resin on the tensile properties of the composites was analyzed. The results show that when the content of MWCNT is less than 39.1%, the content of carbon nanotubes can significantly improve the tensile properties of Baki paper / epoxy composites. The tensile strength and modulus of Baki paper / epoxy composites Is closely related to the properties of the resin matrix, and its tensile failure mode is significantly affected by the brittleness and toughness of the matrix. In contrast, the effect of the adhesion between the baggy paper and the resin on the tensile properties of the baggy paper / epoxy composite is not obvious.