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Effect of viscosity stabilizer on the properties and structure of raw constant viscosity rubber

文献类型： 外文期刊

作者： Wang Yongzhou 1 ; Wang Pingyue 1 ; Zhang Beilong 1 ; Huang Honghai 1 ; Ding Li 1 ; Zhang Fuquan 1 ; Fang Lei 1 ; Zeng Riz 1 ;

作者机构： 1.CATAS, Key Lab Trop Crop Prod Proc Minist Agr, Agr Prod Proc Res Inst, Zhanjiang 524001, Guangdong, Peoples R China

2.CATAS, Rubber Res Inst, Danzhou 571737, Halnan, Peoples R China

关键词： constant viscosity natural rubber;viscosity stabilizer;dynamic mechanical properties;characterization;molecular weight

期刊名称：ADVANCED MATERIALS AND PROCESSES II, PTS 1-3

ISSN： 1022-6680

年卷期： 2012 年 557-559 卷

页码：

收录情况： SCI

摘要： The properties of raw constant viscosity natural rubber were measured using a rubber processing analyzer. The results show that the rubber processing analyzer can characterize well the effect of viscosity stabilizer on the dynamic mechanical properties of raw constant viscosity rubber by applied strain sweep or frequency sweep. In linear viscoelastic region, the increment of the dynamic torque S' of the constant viscosity natural rubber prepared with hydroxylamine hydrochloride decreases with the increase in the level of hydroxylamine hydrochloride. In the range of low frequency, the increment of the dynamic modulus G' of constant viscosity natural rubber prepared with hydroxylamine hydrochloride is obvious lower than those of natural rubber and constant viscosity natural rubber prepared with aniline. G' of the constant viscosity natural rubber prepared with aniline is just only a little higher than that of natural rubber. Hydroxylamine hydrochloride and aniline can decrease the molecular weight of rubber, and change the molecular weight distribution. The dynamical properties of constant viscosity natural rubber are dependent on the molecular weight and the molecular weight distribution.

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