Abstract

Graphene was compounded with polyaniline to prepare a polyaniline/graphene composite coated fabric. The influence of the graphene on a series of properties of coated fabrics was discussed, and the results show that when the graphene content was 10 to 15% that of the polyaniline, the polarizing ability, loss ability and absorbing-attenuation ability of fabrics to electromagnetic waves were all stronger. As the coating thickness increases, the breaking strength and elongation at break of the fabric both showed an increase initially before decreasing; when the thickness was 0.5 mm, both fabrics were at their maximums, and the mechanical properties were at their best. The thermal decomposition temperature of the polyaniline/graphene composite coated fabric (411.3 °C) was higher than for the polyaniline coated fabric (402.9 °C) by 8.4 °C. The residue rate at 800 °C for the polyaniline/graphene composite coated fabric (18.83%) was larger than for the polyaniline coated fabric (14.17%) by 4.66%; the fabric had better thermal stability after the graphene was added. The graphene, with high thermal conductivity, was added to the polyaniline matrix as a filler, which can effectively fill the gaps between the polyaniline molecules, and an effective heat-conduction pathway forms and the heat-dissipation performance for the polyaniline/graphene composite coated fabric is improved. When the graphene content was 15% that of the polyaniline, the coefficient of thermal conductivity increases from 0.1011 W/mK to 0.1843 W/mK, an increase of nearly 82%.

摘要

石墨烯与聚苯胺复合制备聚苯胺/石墨烯复合涂层织物。讨论了石墨烯对涂层织物一系列性能的影响，结果表明，当石墨烯含量为聚苯胺的10%～15%时，织物对电磁波的极化能力、损耗能力和吸收衰减能力波浪都更强了。随着涂层厚度的增加，织物的断裂强度和断裂伸长率均呈先增大后减小的趋势；当厚度为0.5mm时，两种织物均达到最大值，力学性能最佳。聚苯胺/石墨烯复合涂层织物的热分解温度 (411.3 °C) 比聚苯胺涂层织物 (402.9 °C) 高 8.4 °C。聚苯胺/石墨烯复合涂层织物800℃残留率（18.83%）比聚苯胺涂层织物（14.17%）高4.66%；添加石墨烯后织物具有更好的热稳定性。将具有高导热性的石墨烯作为填料加入到聚苯胺基体中，可以有效填充聚苯胺分子间的空隙，形成有效的热传导通路，使涂覆的聚苯胺/石墨烯复合材料具有良好的散热性能。面料有所改进。当石墨烯含量为聚苯胺的 15% 时，导热系数从 0.1011 W/mK 增加到 0.1843 W/mK，增加近 82%。添加石墨烯后织物具有更好的热稳定性。将具有高导热性的石墨烯作为填料加入到聚苯胺基体中，可以有效填充聚苯胺分子间的空隙，形成有效的热传导通路，使涂覆的聚苯胺/石墨烯复合材料具有良好的散热性能。面料有所改进。当石墨烯含量为聚苯胺的 15% 时，导热系数从 0.1011 W/mK 增加到 0.1843 W/mK，增加近 82%。添加石墨烯后织物具有更好的热稳定性。将具有高导热性的石墨烯作为填料加入到聚苯胺基体中，可以有效填充聚苯胺分子间的空隙，形成有效的热传导通路，使涂覆的聚苯胺/石墨烯复合材料具有良好的散热性能。面料有所改进。当石墨烯含量为聚苯胺的 15% 时，导热系数从 0.1011 W/mK 增加到 0.1843 W/mK，增加近 82%。形成有效的导热通路，提高聚苯胺/石墨烯复合涂层织物的散热性能。当石墨烯含量为聚苯胺的 15% 时，导热系数从 0.1011 W/mK 增加到 0.1843 W/mK，增加近 82%。形成有效的导热通路，提高聚苯胺/石墨烯复合涂层织物的散热性能。当石墨烯含量为聚苯胺的 15% 时，导热系数从 0.1011 W/mK 增加到 0.1843 W/mK，增加近 82%。