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首页> 外文期刊>Journal of Applied Polymer Science >Effects of hybrid fillers on the electrical conductivity, EMI shielding effectiveness, and flame retardancy of PBT and PolyASA composites with carbon fiber and MWCNT
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Effects of hybrid fillers on the electrical conductivity, EMI shielding effectiveness, and flame retardancy of PBT and PolyASA composites with carbon fiber and MWCNT

机译：杂交填料对碳纤维和MWCNT的PBT和POMASA复合材料的电导率，EMI屏蔽效果和阻燃性的影响

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摘要

The effects of hybrid fillers of carbon fiber (CF) and multiwall carbon nanotube (MWCNT) on the electrical conductivity, electromagnetic interference shielding effectiveness (EMI SE), flame retardancy, and mechanical properties of poly(butylene terephthalate) (PBT)/poly(acrylonitrile-co-styrene-co-acrylate) (PolyASA) (70/30, wt %) with conductive filler composites were investigated. The CF was used as the main filler, and MWCNT was used as the secondary filler to investigate the hybrid filler effect. For the PBT/PolyASA/CF (8 vol %)/MWCNT (2 vol %) composite, a higher electrical conductivity (1.4 x 10(0) S cm(-1)) and EMI SE (33.7 dB) were observed than that of the composite prepared with the single filler of CF (10 vol %), which were 9.0 x 10(-2) S cm(-1) and 23.7 dB, respectively. This increase in the electrical properties might be due to the longer CF length and hybrid filler effect in the composites. From the results of aging test at 85 degrees C, 120 h, the electrical conductivity and EMI SE of the composites decreased slightly compared to that of the composite without aging. The results of electrical conductivity, EMI SE, and flame retardancy suggested that the composite with the hybrid fillers of CF and MWCNT showed a synergetic effect in the PBT/PolyASA/CF (8 vol %)/MWCNT (2 vol %) composite. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48162.
机译：碳纤维（CF）和多壁碳纳米管（MWCNT）杂交填料对电导率，电磁干扰屏蔽有效性（EMI SE），阻燃性和机械性能的影响，对聚（丁二醇酯）/聚（PBT）/聚（研究了丙烯腈 - 共苯乙烯 - 共苯乙烯 - 丙烯酸酯）（Polyasa）（70/30，wt％），具有导电填料复合材料。使用CF作为主填料，使用MWCNT作为次级填料，以研究杂交填料效果。对于PBT / Polyasa / CF（8 Vol％）/ MWCNT（2VOL％）复合材料，观察到较高的导电性（1.4×10（0）厘米（-1））和EMI SE（33.7dB）用CF（10VOL％）的单个填料制备的复合材料，分别为9.0×10（-2）厘米（-1）和23.7dB。电气性质的增加可能是由于复合材料中的CF长度和混合填充效果较长。从85℃，120h的老化试验结果，与无老化的复合材料相比，复合材料的电导率和EMI Se略微下降。导电性，EMI SE和阻燃性的结果表明，CF和MWCNT的杂化填料的复合材料在PBT / Polyasa / CF（8体积）/ MWCNT（2VOL％）复合材料中显示了一种协同作用。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,48162。

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