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Effect of Hydrazine Dihydrochloride on Vulcanisation Kinetics of Natural Rubber by Using a Rheometer MDR2000

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文献类型：外文期刊

作者： Wang, Y. Z. ¹ ; Zhang, B. L. ¹ ; Huang, H. H. ¹ ; Zhang, X. ² ;

作者机构： 1.CATAS, Agr Prod Proc Res Inst, Zhanjiang, Guangdong, Peoples R China

2.CATAS, Rubber Res Inst, Danzhou, Hainan, Peoples R China

关键词： Natural rubber;viscosity stabiliser;hydrazine dihydrochloride;vulcanisation kinetics;rate constant;activation energy

期刊名称：JOURNAL OF RUBBER RESEARCH （影响因子：0.667；五年影响因子：0.618 ）

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收录情况： SCI

摘要： Mooney viscosity is a technical parameter to control the processing performance of natural rubber (NR) compound. By treating NR with viscosity stabilisers, the NR of a relatively constant viscosity can be manufactured. In this paper, the vulcanisation kinetics of constant viscosity natural rubber (CVNR) prepared with hydrazine dihydrochloride and NR was studied by using a moving die rheometer (Rheometer MDR2000). The results show that the rate constants of induction and curing period of NR are slightly greater than that of CJ/NR and the activation energies of induction and curing period of NR are lower than that of CVNR. The activation energy of induction period of NR is reduced by 6.28% and the activation energy of curing period of NR is reduced by 3.09% compared to the activation energies of CVNR. The time t(dts), of NR and CVNR reduce with increasing curing temperature while the time t(dts), of NR is shorter than that of CVNR at the same temperature.

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