导电炭黑对木粉/PP复合材料抗静电及力学性能的影响

Effects of Conductive Carbon Black on Antistatic and Mechanical Properties of Wood Flour/Polypropylene Composites

文章对比分析了非离子型抗静电剂、高分子型抗静电剂与导电炭黑对木粉/PP复合材料的抗静电作用,重点探讨了导电炭黑的添加量对其抗静电及力学性能的影响。结果表明：与非离子型抗静电剂、高分子型抗静电剂相比,导电炭黑对木粉/PP复合材料的抗静电作用效果更优;当导电炭黑的添加量达到8份时,复合材料的表面电阻率和体积电阻率分别达到1.64×10~8？和2.54×10~8？·cm,具有较好的抗静电效果;在马来酸酐接枝聚丙烯（MAPP）的存在下,导电炭黑提高了木粉/PP复合材料的抗弯性能。

The effects of the non-ionic antistatic agent, polymer type antistatic agent and conductive carbon black on antistatic property of wood flour/polypropylene composites were studied. We focused on influences of conductive carbon black content on antistatic and mechanical properties of wood flour/polypropylene composites. The results showed that both non-ionic and polymer type antistatic agent were not very effective on wood flour/polypropylene composites except conductive carbon black. The surface resistivity and volume resistivity respectively reached to 1.64×108 ？ and 2.54×108 ？·cm when the content of conductive carbon black added up to 8 phr, which showed a good effect on the antistatic properties of composites. With the increasing of conductive carbon black content, the flexural properties of wood flour/polypropylene composites were enhanced in the presence of maleic anhydride grafted polypropylene（MAPP）.