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Novel nonammonia preservative for concentrated natural rubber latex

文献类型： 外文期刊

作者： Wang, Ting 1 ; Gui, Hong-Xing 2 ; Zhang, Wen-Fei 1 ; Zhang, Ke-Xi 1 ; Yu, Wei-Qiang 2 ; Li, Yi-Min 2 ; Zeng, Ri-Zhong; 1 ;

作者机构： 1.Hainan Univ, Coll Mat & Chem Engn, Haikou 570228, Peoples R China

2.CATAS, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China

3.Chinese Acad Trop Agr Sci, Rubber Res Inst, Danzhou 571737, Peoples R China

关键词： applications;crosslinking;film;mechanical properties;rubber

期刊名称：JOURNAL OF APPLIED POLYMER SCIENCE （ 影响因子：3.125； 五年影响因子：2.754 ）

ISSN： 0021-8995

年卷期： 2015 年 132 卷 15 期

页码：

收录情况： SCI

摘要： A derivative of sym-triazine (HTT) was chosen as a new nonammonia preservative for concentrated natural rubber latex (CNRL) in place of NH3-TT/zinc oxide (ZnO). The preservation effects of the HTT for CNRL, drying characteristics, mechanical properties, and cytotoxicity of the vulcanized natural rubber (NR) film were investigated. The results show that the CNRL was preserved steadily for more than 6 months with 0.3% HTT, and the volatile fatty acid number, viscosity, and mechanical stability of CNRL all met the requirements of ISO 2004:2010(E). The drying characteristics of the vulcanized NR film preserved by HTT retained no change compared with those of the film preserved by NH3-TT/ZnO. The tensile strength and elongation at break of the vulcanized NR film preserved by HTT were 32.17 MPa and 853.80%, respectively; these were very similar to those of the film preserved by NH3-TT/ZnO, whereas the tear strength reached 68.43 kN/m, and this was much higher than that by NH3-TT/ZnO. The results of the cytotoxicity and dermal irritation tests prove that HTT is not especially harmful to humans. (C) 2014 Wiley Periodicals, Inc.

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