Factors influencing green strength of commercial natural rubber

被引：8
|
作者：
Nghiem Thi Thuong [1 ]
Phan Trung Nghia [1 ,2 ]
Kawahara, Seiichi [3 ]
机构：
[1] Hanoi Univ Sci & Technol, Sch Chem Engn, 1 Dai Co Viet, Hanoi, Vietnam
[2] Hanoi Univ Sci & Technol, Ctr Sci & Technol Rubber, 1 Dai Co Viet, Hanoi, Vietnam
[3] Nagaoka Univ Technol, Dept Mat Sci & Technol, 1603-1 Kamitomioka Cho, Nagaoka, Niigata 9402188, Japan
来源：
GREEN PROCESSING AND SYNTHESIS | 2018年 / 7卷 / 05期
关键词：
commercial natural rubber; fatty acids; green strength; network structure; protein; CRYSTALLIZATION;
D O I：
10.1515/gps-2018-0019
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The factors influencing the green strength of commercial solid rubbers were investigated in the present study through characterization of commercial natural rubber (NR). Various solid commercial rubbers such as standard Vietnam rubber (SVR10), standard Indonesia rubber (SIR10), India standard natural rubber (ISNR10), ribbed smoked sheets (RSS3), and FNR (commercial Sumitomo Rubber) were used as a source. Purification of the samples was carried out through acetone extraction and purified samples were characterized by nuclear magnetic resonance (NMR) and Fourier-Transform infrared spectroscopy. Degradation was found for SVR10, ISNR10, and SIR10 but not for RSS3 and FNR through the assignment of C-13-NMR signals. Acetone extraction was found to improve the green strength of commercial NR due to the removal of impurities. Linked fatty acids and proteins contributed to the upturn of stress at small strain. However, the network structure of degraded rubbers had an insignificant role in enhancing the green strength of commercial NR.
引用
收藏
页码：399 / 403
页数：5
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