文献类型： 外文期刊

作者： Heping, Y. ¹ ; Zongqiang, Z. ¹ ; Qifang, W. ¹ ; Yongyue, L. ¹ ; Xia, Z. ¹ ; Linxue, K. ¹ ;

作者机构： 1.Chinese Acad Trop Agr Sci, Agr Product Proc Res Inst, Zhanjiang 524001, Guangdong, Peoples R China

关键词： Constant viscosity natural rubber;Storage hardening;Mercaptan

期刊名称：KGK-KAUTSCHUK GUMMI KUNSTSTOFFE （ 影响因子：0.441； 五年影响因子：0.37 ）

ISSN： 0948-3276

年卷期： 2011 年 64 卷 5 期

页码：

收录情况： SCI

摘要： Constant viscosity natural rubber has been prepared using mercaptan. The accelerated storage tests indicate that the storage hardening phenomenon of natural rubber can be inhibited by mercaptan. The amount of mercaptan (2-mercaptobenzothiazole) of 0.14 phr is sufficient to prepare constant viscosity natural rubber and the storage hardening numbers of constant viscosity NR in both Mooney viscosity and Wallace plasticity are less than 4. The processing properties and anti-oxidative behavior of CV-NR can be improved, although the mechanical properties of vulcanizates decreased slightly as compared to those of natural rubber. The results further support the hypothesis that the abnormal groups in natural rubber molecules are aldehyde groups and are responsible for the hardening of natural rubber.