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

作　　者：何铭彬 邹立经 陈朝晖[1] 黄学智 吴再生 林强 HE Mingbin;ZOU Lijing;CHEN Zhaohui;HUANG Xuezhi;WU Zaisheng;LIN Qiang(South China University of Technology,Guangzhou 510641,China;Jiangsu Rebo New Material Technology Co.,Ltd,Lianyungang 222200,China)

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510641 [2]江苏锐巴新材料科技有限公司,江苏连云港222200

出　　处：《橡胶工业》2024年第1期3-10,共8页China Rubber Industry

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、交联键分布、物理性能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。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.

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 

分 类 号：TQ332.1[化学工程—橡胶工业] TQ330.387