Rheological Behavior of Raw Natural Rubber Coagulated by Microorganisms

文献类型: 外文期刊

第一作者: Wang, Zhifen

作者: Wang, Zhifen;Luo, Wenjie;Fang, Lin;Liao, Shuangquan;Li, Lefan;Lin, Hua;Li, Sidong;He, Canzhong

作者机构:

关键词: Microorganisms coagulation;natural rubber;rheological properties

期刊名称:POLIMEROS-CIENCIA E TECNOLOGIA ( 影响因子:1.492; 五年影响因子:1.886 )

ISSN: 0104-1428

年卷期: 2014 年 24 卷 2 期

页码:

收录情况: SCI

摘要: Tests of the strain sweep, frequency sweep and stress relaxation for raw natural rubber coagulated by microorganisms (NR-m) and raw natural rubber coagulated by acid (NR-a) were carried out with the use of a rubber process analyzer (RPA). The results showed that the storage torque, complex viscosity of NR-m were higher than those of NR-a while the loss factor was lower. The effect of temperature on viscosity of raw NR was studied following the Arrhenious-Frenkel-Eyring model. The viscous flow behavior of NR-m was poorer than those of NR-a. Furthermore, stress relaxation measurements of raw NR showed a longer period of relaxation for NR-m.

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