Mechanical, Thermal and Electromagnetic Shielding Effectiveness of MWCN-ABS Films
Mechanical, Thermal and Electromagnetic Shielding Effectiveness of MWCN-ABS Films
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MWCN-ABS 薄膜的机械、热和电磁屏蔽效能
DOI：
10.1007/s42341-021-00339-8
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发表时间：
2021
影响因子：
1.9
通讯作者：
B.H.S. Thimmappa
中科院分区：
文献类型：
--
作者：
R. B. Jagadeesh Chandra;B. Shivamurthy;M. Sathish Kumar;B.H.S. Thimmappa
使用磁力搅拌器将多壁碳纳米管（MWCNT）和聚（丙烯腈-共-丁二烯-共-苯乙烯）（ABS）颗粒分别分散在丙酮中，然后超声处理。此外，在磁力搅拌下混合两种溶液，然后进行超声处理。纯ABS膜、平均厚度为140 μm的0.25wt%、0.5wt%和1wt%的MWCNT-ABS纳米复合材料膜通过使用培养皿的溶液模塑来制造，随后室温固化并进一步热压以保持均匀的厚度。拉伸性能，热稳定性，导电性，和EMSE的所有薄膜进行了研究。结果表明，多壁碳纳米管的加入提高了ABS的力学性能和导电性，热稳定性和EMSE。与纯ABS膜相比，0.25重量% MWCNT-ABS纳米复合膜显示出有吸引力的机械、电、热和EMSE。在ABS基体中超过0.25wt%的MWCNT劣化拉伸强度。然而，0.5重量% MWCNT-ABS纳米复合材料表现出更好的拉伸强度，杨氏模量，导电性，和EMSE比纯ABS。在本研究中，我们使用少量的MWCNTs，并遵循一次加热过程中的整个制造过程，并产生MWCNT-ABS纳米复合薄膜具有合理的性能。因此，这可能是生产适用于EMS材料的纳米复合材料的选择之一。我们建议这些薄膜可以用作中间层，以开发X波段电磁波屏蔽材料。
The multi-walled carbon nanotubes (MWCNTs) and the poly(acrylonitrile-co-butadiene-co-styrene) (ABS) granulates are dispersed in acetone separately using a magnetic stirrer followed by ultrasonication. Further, both the solutions were mixed with magnetic stirring followed by ultrasonication. Neat-ABS film, 0.25 wt%, 0.5 wt% and 1 wt% of MWCNT-ABS nanocomposite films of the average thickness of 140 µm are fabricated by the solution molding using a petri dish, followed by room temperature curing and further hot compression to maintain uniform thickness. The tensile properties, thermal stability, electrical conductivity, and EMSE of all films are investigated. The results indicate that the addition of MWCNTs to ABS enhanced the mechanical properties and electrical conductivity, thermal stability, and EMSE. The 0.25 wt% MWCNT-ABS nanocomposite films show attractive mechanical, electrical, thermal, and EMSE as compared to neat-ABS films. More than 0.25 wt% MWCNTs in the ABS matrix deteriorates the tensile strength. However, 0.5 wt% MWCNT-ABS nanocomposites exhibit better tensile strength, Young’s modulus, electrical conductivity, and EMSE than neat-ABS. In this research, we used a low quantity of MWCNTs and followed a one-time heating process in the entire fabrication, and produced MWCNT-ABS nanocomposite films with reasonable properties. Hence, this may be one of the options to produce nanocomposites suitable for EMS materials. We recommend that these films may be used as interlayers to develop an X-band range electromagnetic wave shielding material.