导电炭黑对木粉/PP复合材料抗静电及力学性能的影响
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摘要
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).
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).
引文
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[3]CHOW W S,THAM W L.Thermal and Antistatic Properties o Polypropylene/Organo Montmorillonite Nanocomposites[J].Polymer-Plastics Technology and Engineering,2009,48(4):342-350.
[4]ZHENG W,LU X,WONG S C.Electrical and mechanical properties of expanded graphite-reinforced high-density polyethylene[J].Journal of Applied Polymer Science,2004,91(5):2781-2788.
[5]曹新鑫,霍国洋,贺超峰,等.聚丙烯抗静电改性的研究进展[J].塑料助剂,2012(05):6-9.
[6]周建萍,丘克强,傅万里.抗静电高分子复合材料研究进展[J].工程塑料应用,2003,31(10):60-62.
[7]GABRIEL P,CIPRIANO L G,ANA J M.Polymer composites prepared by compression molding o a mixture of carbon black and nylon6 powder[J].Polymer Composites,1999,20:804-808.
[8]孟大伟,彭佳,李东栋.抗静电木粉/聚丙烯复合材料的研究[J].塑料,2006,35(05):24-27.
[9]张明丽,王清文,房轶群.防静电木粉/聚氯乙烯复合材料的性能[J].东北林业大学学报,2010,38(10):61-63.
[10]MARKARIAN J.New developments in antistatic and conductive additives[J].Plastics Additives&Compounding,2008,10(5):22-25.
[11]ALI M H,ABO-HASHEM A.Percolation concept and the electrical conductivity of carbon black-polymer composites 3:Crystallisable chloroprene rubber mixed with FEF carbon black[J].Journal of Materials Processing Technology,1997,68(2):168-171.
[12]MAMUNYA E P,DAVIDENKO V V,LEBEDEV E V.Effect of polymer-filler interface interactions on percolation conductivity of thermoplastics filled with carbon black[J].Instrumentation Science&Technology,1996,4(4):169-176.
[13]ZOIS H,APEKIS L,OMASTOVA M.Electrical properties and percolation phenomena in carbon black filled polymer composites[C].International Symposium on Electrets,1999,Ise 10,Proceedings,IEEE,1999:529-532.
[14]KEIZO MIYASAKA,KIYOSI WATANABE,EIICHIRO JOJIMA.Electrical conductivity o carbon-polymer composites as a unction o carbon content[J].Journal o Materials Science,1982,17:1610-1616.
[15]TCHOUDAKOV R,BREUER O,NARKIS M,et al.Conductive polymer blends with low carbon black loading:Polypropylene/polyamide[J].Polymer Engineering&Science,1996,36(10):1336-1346.
[16]LI Y,WANG S,ZHANG Y,et al.Electrical properties and morphology of polypropylene/epoxy/glass fiber composites filled with carbon black[J].Journal of Applied Polymer Science,2005,98(3):1142-1149.
[17]杨波.炭黑/聚丙烯导电复合材料的电性能和形态研究[D].四川大学,2007.
[18]李文春,沈烈,孙晋,等.多壁碳纳米管填充高密度聚乙烯复合材料的导电性和动态流变行为[J].高分子学报,2006(02):269-273.
[19]滕参.新型低炭含量注塑式PP/PA/GF/CB抗静电材料的制备与研究[D].苏州大学,2006.