| NR硫化返原的研究Ⅰ.普通硫黄硫化体系 |
| Study on NR Reversion Part 1.Conventional Sulfur Curing System |
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| DOI： |
| 中文关键词: NR 硫化返原 抗返原剂 |
| 英文关键词: NR reversion anti-recovery agent |
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| 中文摘要: |
| 研究了NR的返原反应。通过测定硫化曲线、物理性能和溶胀指数考察了常见的几种工业化抗返原剂(DHTS，HVA-2和Si69)对NR硫化返原反应的抑制效果。实验结果表明，以HVA-2的抗返原效果最好，DHTS次之，Si69最差，同时HVA-2和DHTS还能改善NR的热氧老化性能。对硫化曲线进行解析发现硫黄硫化反应服从一级反应规律。 |
| 英文摘要: |
| A study was made on the NR reversion.The inhibition effect of some commercial anti-recovery agents，such as DHTS，HVA-2 and Si69，on the NR reversion was investigated by determining curing curve，physical properties and swelling index of the anti-recovery agent-containing compounds.The test results showed that HVA-2 was the most effective anti-recovery agent，DHTS was the second，and Si69 was the most poorest；HVA-2 and DHTS improved the thermo-oxidative stability.It was found by analysing the curing curve that the sulfur curing reaction obeyed the first order reaction low. |
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