| 硫化过程对天然橡胶胶料多重网络结构的影响 |
| Influence of Vulcanization Process on Multiple Network Structure of NR Compounds |
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| DOI： |
| 中文关键词: 天然橡胶 炭黑 硫黄 硫化过程 网络结构 |
| 英文关键词: NR carbon black sulfur vulcanization process network structure |
| 基金项目:国家自然科学基金资助项目（51073084） |
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| 中文摘要: |
| 研究不同炭黑或硫黄用量的天然橡胶（NR）胶料硫化过程对其网络结构的影响。结果表明：与NR混炼胶相比，NR硫化胶含有更多的炭黑-炭黑和炭黑-大分子网络；随着炭黑用量的增大，NR硫化胶的炭黑-炭黑网络和炭黑-大分子网络增多，压缩疲劳温升和永久变形增大；随着硫黄用量的增大，NR硫化胶的炭黑-炭黑网络增多，且大分子交联网络和炭黑-大分子网络的共同作用增强，压缩疲劳温升和永久变形先减小后趋于稳定。 |
| 英文摘要: |
| The influence of vulcanization process of NR compounds filled with different addition levels of carbon black or sulfur on their network structures was investigated.The results showed that，compared with NR compounds，NR vulcanizates contained more carbon black networks and carbon black-polymer networks.As the addition level of carbon black increased，the density of carbon black networks and carbon black polymer networks in NR vulcanizates increased，and the compression fatigue temperature rise and compression set increased.As the addition level of sulfur increased，the carbon black network density increased，the interaction between carbon black-polymer networks and crosslinked polymer networks was strengthened，and the compression fatigue temperature rise and compression set increased at first and then kept stable. |
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