| 平衡硫化体系硫化天然橡胶的性能研究 |
| Study on Properties of NR Vulcanizate Cured with Equilibrium Curing System |
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| DOI： |
| 中文关键词: 天然橡胶 硫化体系 平衡硫化 |
| 英文关键词: NR curing system equilibrium curing |
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| 中文摘要: |
| 对平衡硫化（EC）体系硫化天然橡胶（NR）的性能进行了研究，并与半有效硫化（SEV）体系和传统硫化（CV）体系硫化NR进行了对比。结果表明，EC体系返原作用略高于SEV体系，明显低于CV体系，硫化6h时的返原率依次为7.7%，0.4%和34.0%；与SEV和CV体系相比，EC体系NR硫化胶拉伸强度、撕裂强度和300%定伸应力高，生热低，耐磨性和耐屈挠性好。EC体系NR硫化胶的耐热氧老化性能优于SEV体系，更优于CV体系。 |
| 英文摘要: |
| The properties of NR vulcanizate cured with EC system were studied and compared with those cured with SEV system or CV system.The results showed that the reversion of EC system was a little higher than that of SEV system，but remarkable lower than that of CV system，and the reversion rates of their vulcanizates（cure：143℃×6h）were 7.7%，0.4% and 34.0% respectively；the NR vulcanizate cured with EC system was better than those cured with SEV or CV system in terms of tensile strength，tear strength，300% modulus，heat buila-up，abrasion and flex resistance.The heat ageing property of EC vulcanizate was better than that of SEV vulcanizate，and much bcrter than that of CV vulcanizate. |
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