基于机械球磨法的茂金属PE/石墨/碳纳米管导电复合材料的制备及性能研究
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摘要
以茂金属PE为基体,以石墨和碳纳米管为导电填料,采用机械球磨法,制备茂金属PE/石墨/碳纳米管导电复合材料,考察球磨时间、球磨温度、球磨转速和石墨含量等对复合材料导电性的影响。结果表明,在球磨时间60 min,球磨温度50℃,球磨转速150 r/min、导电填料15%石墨、5%碳纳米管的条件下,复合材料的电阻率降到1.36Ω·cm,可作为一种电磁屏蔽材料应用于电子元器件表面。
Metallocene PE/graphite/carbon nanotube conductive composites were prepared by mechanical milling methods with metallocene PE as matrix,graphite and carbon nanotubes as conductive fillers.The results showed that the ball milling time,ball milling temperature,ball milling speed and graphite content have great influence on the conductivity of the composites.Under such conditions as ball milling time 60 min,ball milling temperature 50 ℃,ball milling speed 150 r/min,graphite content 15%,carbon nanotubes content 5%,the resistivity of composites could reach 1.36 Ω·cm,which can be used as an electromagnetic shielding material on the surface of electronic components.
Metallocene PE/graphite/carbon nanotube conductive composites were prepared by mechanical milling methods with metallocene PE as matrix,graphite and carbon nanotubes as conductive fillers.The results showed that the ball milling time,ball milling temperature,ball milling speed and graphite content have great influence on the conductivity of the composites.Under such conditions as ball milling time 60 min,ball milling temperature 50 ℃,ball milling speed 150 r/min,graphite content 15%,carbon nanotubes content 5%,the resistivity of composites could reach 1.36 Ω·cm,which can be used as an electromagnetic shielding material on the surface of electronic components.
引文
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[5] 李丽,王成国.导热塑料的研究与应用[J].高分子通报,2007(7):25-31.
[6] 王晓丽,周雪琴,田启祥,等.聚乙烯基复合透明导电薄膜的制备与性能[J].高分子材料科学与工程,2013(2):165-168.
[7] 曹清华,孟庆荣,贾伟灿,等.高比表面积炭黑/聚丙烯导电复合材料[J].复合材料学报,2012(2):59-64.
[8] 沈芳,常亚丽,周延松,等.机械活化法制备PVC/木薯渣/石墨导电复合材料[J].广西大学学报:自然科学版,2016,41(3):870-875.
[9] 曾继军,李育英,何嘉松.茂金属聚乙烯的流变性与加工性[J].高分子学报,2000,1(1):69-73.
[10] 玉澜,黄祖强,胡华宇,等.机械活化强化硅烷改性竹粉/PVC复合材料制备[J].应用化工,2018,47(3):460-463.
[11] 魏清渤,付峰,张玉琦,等.PAM-g-PVA/MWCNTs导电复合材料的制备及表征[J].应用化工,2012,41(10):1682-1684.
[12] Chen W,Wang J,Wang T,et al.Electromagnetic interference shielding properties of electroless nickel-coated carbon fiber paper reinforced epoxy composites[J].Journal of Wuhan University of Technology (Materials Science Edition),2014(6):1165-1169.
[13] 邱迪,徐恒,王鹏.茂金属线性低密度聚乙烯的共混改性研究[J].科学发现,2017,5(7):529-533.
[14] Zheng G,Liu X,Krückel J,et al.Electrical conductivity behaviour of sheared poly(methyl methacrylate)/carbon black composites[J].Composites Science & Technology,2014,100(21):99-104.
[15] Zahra M,Zulfiqar S,Yavuz C T,et al.Conductive nanocomposite materials derived from SEBS-g-PPy and surface modified clay[J].Composites Science & Technology,2014,100(21):44-52.
[16] Chiang C K,Heeger A J,Macdiarmid A G.Synthesis,structure,and electrical properties of doped polyacetylene[J].Zeitschrift F?/4r Elektrochemie Berichte der Bunsengesellschaft F?/4r Physikalische Chemie,2010,83(4):407-417.