原位聚合法制备环氧树脂/纳米炭黑复合导电材料的性能研究

Research on Properties of Epoxy/Nano-carbon Black Conductive Composite Prepared by In-situ Polymerization

采用原位聚合法制备了环氧树脂/纳米炭黑复合导电材料,并对其力学性能、电阻率和抗弯断面形貌进行了分析。结果表明,环氧树脂/纳米炭黑复合导电材料的邵氏硬度和抗弯强度随纳米炭黑含量而变化,当其含量为3%(质量分数)附近时两者出现最大值,抗弯强度可达到43.86MPa,邵氏硬度可达到5.34HD;纳米炭黑的加入使复合材料的电性能得到较大的提高。

Epoxy resin/nano carbon black conductive composite were prepared by in-situ polymerization, The mechanical properties and resistivity of the materials were analyzed and the microstructure of fracture surface was also analyzed by SEM. The results showed that Shore hardness and anti-bending strength of samples differed with the increase of the amount of nano-carbon black and those were all improved greatly by an optimal content of about 3 % （mass fraction）. The anti-bending strength was 43. 86MP and Shore hardness was 5. 34HD. The electricity properties of the materials were increased largely by adding nano-carhon black.