| 双（2-柠康酰亚胺苯基）二硫化物对天然橡胶性能的影响 |
| Effect of Bis（2-citronimidophenyl） Disulfide on Properties of NR |
| 投稿时间：2022-08-17 修订日期：2022-08-17 |
| DOI：10.12136/j.issn.1000-890X.2024.01.0003 |
| 中文关键词: 天然橡胶 双（2-柠康酰亚胺苯基）二硫化物 塑解 多硫键 抗硫化返原性能 |
| 英文关键词: NR BCoPD plasticization polysulfide bond anti-reversion property |
| 基金项目: |
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| 中文摘要: |
| 采用双（2-柠康酰亚胺苯基）二硫化物（BCoPD）作为天然橡胶（NR）的多功能硫化助剂，通过机械共混制备BCoPD/NR复合材料，探讨BCoPD用量和复合材料制备方法对BCoPD/NR复合材料的门尼粘度、Payne效应、硫化特性、物理性能、交联键分布和动态力学性能的影响。结果表明：采用在生胶塑解过程中加入BCoPD的BCoPD/NR复合材料制备方法，加入0.5份BCoPD使得复合材料的门尼粘度下降22.2%，60 min时的抗硫化返原率减小3%，多硫键比例增大3%，物理性能小幅下降，抗湿滑性能小幅提高；采用在加硫化体系时加入BCoPD的BCoPD/NR复合材料制备方法，加入1份BCoPD使得复合材料60 min时的抗硫化返原率下降11.9%，多硫键比例增大4%，物理性能有所提高，滚动阻力小幅下降。 |
| 英文摘要: |
| Bis（2-citraconimidophenyl） disulfide（BCoPD）/natural rubber（NR） composites were
prepared by mechanical blending using BCoPD as a multifunctional vulcanizing agent，and the effects of
BCoPD amounts and composite preparation methods on the Mooney viscosities，Payne effects，vulcanization
characteristics，crosslinking bond distributions，physical properties and dynamic mechanical properties of
BCoPD/NR composites were investigated. The results showed that when the BCoPD/NR composite was
prepared by adding BCoPD during the plasticization process of raw rubber，adding 0. 5 phr BCoPD resulted
in a 22. 2% decrease in Mooney viscosity of the composite，a 3% decrease in anti-reversion rate at 60
minutes，a 3% increase in the polysulfide bond proportion，a slight decrease in physical properties and a slight
improvement in wet slip resistance. When the BCoPD/NR composite preparation method by adding BCoPD
during adding the curing system was adopted，adding 1 phr BCoPD reduced the anti-reversion rate of the
composite at 60 minutes by 11. 9%，increased the polysulfide bond proportion by 5%，improved the properties
and slightly decreased the rolling resistance. |
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