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Fabrication of a highly stretchable and electrically conductive silicone-embedded composite textile through optimization of the thermal curing process
Journal of Industrial and Engineering Chemistry ( IF 6.1 ) Pub Date : 2022-01-03 , DOI: 10.1016/j.jiec.2021.12.033
Jongil An 1 , Soyern Kim 1 , Jin-Wook Choi 1 , Jisung Park 1 , Seung-Rak Son 1 , Chan Beom Park 1 , Jun Hyup Lee 1
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Herein, we propose a silicone-based conductive composite textile (CCT) with an excellent durability and electrical conductivity by optimizing the thermal curing process for the conductive silicone. The proposed conductive textile was prepared via a thermal curing process after the screen printing of a silicone composite containing a conductive filler on the textile surface. During thermal curing, the silicone polymer present on the textile surface underwent thermal diffusion and penetrated the fabric substrate. As a result, a mechanically interlocked structure was formed between the infiltrated silicone and the fiber to provide a high elasticity, and the silicone remaining on the textile surface formed a hybrid cross-linked structure connecting the conductive fillers to produce an excellent conductive network. An excellent elastic recovery (78.3%) was found for CCT prepared at 150 °C for 4 min during the initial stage of the cyclic strain recovery test, and the high strain recovery rate was maintained even after 10 cycles. Scanning electron microscopy-energy dispersive spectroscopy revealed no significant change in the internal structure even under repeated strain, and an excellent electrical resistance (68 Ω) was maintained even after the application of repeated stress.



中文翻译:

通过优化热固化工艺制备高度可拉伸和导电的有机硅包埋复合纺织品

在此,我们通过优化导电有机硅的热固化工艺,提出了一种具有优异耐久性和导电性的有机硅导电复合纺织品(CCT)。所提出的导电纺织品是通过在纺织品表面上丝网印刷含有导电填料的有机硅复合材料后通过热固化工艺制备的。在热固化过程中,存在于纺织品表面的有机硅聚合物经历了热扩散并渗透到织物基材中。结果,渗透的有机硅和纤维之间形成了机械互锁结构以提供高弹性,而残留在织物表面的有机硅形成混合交联结构,将导电填料连接起来,形成优良的导电网络。出色的弹性恢复 (78. 在循环应变恢复测试的初始阶段,在 150°C 制备 4 分钟的 CCT 中发现了 3%),即使在 10 个循环后仍保持高应变恢复率。扫描电子显微镜-能量色散光谱显示,即使在反复应变下,内部结构也没有显着变化,即使在反复施加应力后,仍保持了优异的电阻(68 Ω)。

更新日期:2022-01-03
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