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首页> 外文期刊>Polymers >Electric Heating Behavior of Reduced Oxide Graphene/Carbon Nanotube/Natural Rubber Composites with Macro-Porous Structure and Segregated Filler Network
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Electric Heating Behavior of Reduced Oxide Graphene/Carbon Nanotube/Natural Rubber Composites with Macro-Porous Structure and Segregated Filler Network

机译：用宏观多孔结构和隔离填料碳纳米管/天然橡胶复合材料的电加热行为和分离填料

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Conductive polymer composites with carbonaceous fillers are very attractive and play a significant role in the field of electric heaters owing to their lightweight, corrosion resistance, and easy processing as well as low manufacturing cost. In this study, lightweight reduced oxide graphene/carbon nanotube/natural rubber (rGO/CNT/NR) composites were fabricated by a facile and cost-effective approach, which consists of rGO assembling on rubber latex particles and hydrogels formation due to the interaction network established between carbonaceous fillers and subsequent mild-drying of the resulting hydrogels. Thanks to the amphiphilic nature of GO sheets, which can serve as a surfactant, the hydrophobic CNTs were easily dispersed into water under ultrasound. On the basis of both the high stable rGO and CNTs suspension and the assembling of rGO on rubber latex, a three-dimensional segregated network of CNT and rGO were easily constructed in macro-porous composites. Either the segregated network and macro-porous structure endowed the resulting composites with low density (0.45 g cm ?3 ), high electrical conductivity (0.60 S m ?1 ), and excellent electric heating behavior, when the weight content of rGO and CNTs are 0.5% and 2.5%, respectively. For electric heating behavior, the steady-state temperature of the above composites reaches 69.1 °C at an input voltage of 15 V.
机译：由于其轻质，耐腐蚀性和易于加工以及低制造成本，具有碳质填料的导电聚合物复合材料非常有吸引力，并且在电加热器领域中发挥着重要作用。在该研究中，通过容易和经济有效的方法制造轻质的还原氧化物石墨烯/碳纳米管/天然橡胶（RGO / CNT / NR）复合材料，其由橡胶胶乳颗粒和由于相互作用网络而形成的RGO组装组装在碳质填料之间建立并随后对所得水凝胶的温和干燥。由于Go Sheets的两亲性质，可以用作表面活性剂，疏水性CNT易于在超声波下分散到水中。在高稳定的RGO和CNTS悬架和RGO上组装橡胶胶乳的基础上，在宏观多孔复合材料中容易构建了CNT和RGO的三维隔离网络。分离的网络和宏观多孔结构赋予所得复合材料，具有低密度（0.45g cm 3），电导率高（0.60 sm≤1），当RGO和CNT的重量含量为时分别为0.5％和2.5％。对于电加热行为，上述复合材料的稳态温度以15V的输入电压达到69.1°C。

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