| 隔离结构还原氧化石墨烯/天然橡胶导电复合材料的制备及其电性能研究 |
| Preparation and Electrical Conductivity of RGO/NR Conductive Composites with Isolation Structure |
| 投稿时间：2020-03-23 修订日期：2020-03-23 |
| DOI：10.12136/j.issn.1000-890X.2021.07.0498 |
| 中文关键词: 隔离结构 还原氧化石墨烯 天然橡胶 导电复合材料 电性能 |
| 英文关键词: isolation structure RGO NR conductive composite conductivity property |
| 基金项目:山东省重点研发计划项目（2018GSF117019） |
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| 中文摘要: |
| 以氧化石墨烯（GO）和天然胶乳为主要原材料，通过冷冻干燥技术制备具有隔离结构的还原氧化石墨烯（RGO）/天然橡胶（NR）导电复合材料，对其电性能进行研究。结果表明：通过冷冻干燥法在NR基体中构筑RGO隔离结构，RGO/NR复合材料的交流电导率和介电常数随RGO体积分数的增大而增大；隔离结构大幅降低了复合材料的电逾渗阈值，并赋予复合材料优异的应变敏感特性。 |
| 英文摘要: |
| Using graphene oxide（GO） and NR latex as the main raw materials，reduced graphene oxide （RGO）/natural rubber（NR） conductive composites with isolation structure were prepared by freeze-drying technology，and its conductivity properties were studied. The results showed that the isolation structure of RGO was constructed in NR matrix by freeze-drying method，and the AC conductivity and dielectric constant of RGO/NR composites increased with the increase of RGO volume fraction. The isolation structure greatly reduced electrical percolation threshold of the composites and endowed the composites with excellent strainsensitive characteristics. |
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