| 低场核磁表征交联橡胶性能的研究 |
| Characterization of crosslinked rubber properties with Low-Field NMR |
| 投稿时间：2015-10-24 修订日期：2015-10-24 |
| DOI： |
| 中文关键词: 低场核磁 橡胶 交联密度 力学性能 |
| 英文关键词: LF-NMR rubber crosslinking density mechanical properties |
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| 中文摘要: |
| 首先研究了核磁法测定的天然橡胶硫化胶的交联密度Mc、核磁参数T2随测试温度升高的变化趋势,确定了测试的温度区间。然后测定了改变硫磺含量的天然橡胶硫化胶的交联密度并与溶胀法的测定值进行了比较,结果显示与溶胀法测定的值具有很强的相关性。最后将核磁参数与力学性能进行比较,指出了交联密度增大时力学性能的变化趋势。 |
| 英文摘要: |
| In this paper, relationships of molecular mass between network joints tested by Low-field NMR and spin-spin relaxation time T2of the rubber system were discussed, the testing temperature range was determined. The crosslinking density of nature rubber with a series of sulfur contents were examined by LF-NMR, the results turns out to be in good agreement with normal swelling method data. The trend of technical properties with increasing crosslinking densities were also analyzed. |
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