| 石墨烯和碳纳米管的天然橡胶纳米复合材料性能的研究 |
| Study on Properties of NR Nanocomposites of Graphene and CNTs |
| 投稿时间：2021-08-02 修订日期：2021-08-02 |
| DOI：10.12136/j.issn.1000-890X.2023.04.0266 |
| 中文关键词: 石墨烯 碳纳米管 天然橡胶 纳米复合材料 湿法混炼 热导率 比热容 拉伸性能 介电常数 |
| 英文关键词: graphene CNTs NR nanocomposite wet mixing thermal conductivity specific heat capacity tensile property permittivity |
| 基金项目:山东省自然科学基金资助项目（ZR2019BEE022，ZR2019MEE030） |
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| 中文摘要: |
| 采用湿法混炼工艺制备石墨烯/天然橡胶（NR）纳米复合材料和碳纳米管/NR纳米复合材料，研究石墨烯和碳纳米管用量对NR纳米复合材料性能的影响。结果表明：随着石墨烯和碳纳米管用量的增大，NR纳米复合材料的热导率和比热容均先增大后减小；石墨烯/NR纳米复合材料的300%定伸应力先减小后增大，石墨烯用量为2份的石墨烯/NR纳米复合材料的拉断伸长率最大；碳纳米管/NR纳米复合材料的300%定伸应力增大，碳纳米管用量为3份的碳纳米管/NR纳米复合材料的撕裂强度最大。随着温度的升高，石墨烯/NR纳米复合材料的相对介电常数呈先增大后减小的趋势，在110 ℃时最大；碳纳米管/NR纳米复合材料的相对介电常数呈增大的趋势。 |
| 英文摘要: |
| Graphene/natural rubber （NR） nanocomposites and carbon nanotubes （CNTs ）/NR
nanocomposites were prepared by wet mixing technology. The effects of the amount of graphene and CNTs on
the properties of NR nanocomposites were studied. The results showed that，with the increase of the amount
of graphene and CNTs，the thermal conductivity and specific heat capacity of NR nanocomposites increased
first and then decreased，the tensile stress at 300% elongation of graphene/NR nanocomposites decreased
at first and then increased，and the elongation at break of the graphene/NR nanocomposites with 2 phr
graphene was the largest. Meanwhile，the tensile stress at 300% elongation of the CNTs/NR nanocomposites
increased with the increase of the amount of CNTs，and the tear strength of the CNTs/NR nanocomposites
with 3 phr CNTs was the highest. With the increase of the temperature，the relative permittivity of CNTs/NR
nanocomposites increased，while the relative permittivity of graphene/NR nanocomposites first increased and
then decreased，reaching the maximum at 110 ℃. |
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