Effect of Linseed Oil and Peanut Oil upon Natural Rubber (NR) Vulcanization. Part I: General Model

被引：9
作者：
Bezerra, Alexandre [1 ]
Santos, Alex C. S. [1 ]
da Costa, Helson M. [1 ]
Ramos, Valeria D.
da Costa, Helson M. [1 ]
机构：
[1] UERJ, Inst Politecn IPRJ, Dept Mat DEMAT, BR-28625570 Nova Friburgo, RJ, Brazil
来源：
POLIMEROS-CIENCIA E TECNOLOGIA | 2013年 / 23卷 / 03期
关键词：
Natural rubber; vulcanization; vegetable oils; FATTY-ACID; KINETICS; SULFUR;
D O I：
10.4322/polimeros.2013.017
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The effect of two vegetable oils, linseed oil and peanut oil, in natural rubber (NR) compositions was available. A conventional system of vulcanization was chosen and, after the mixtures the rheometer parameters (M-e, M-h, t(sl) e t(90)) were analyzed. The vulcanization kinetics was also studied through the simplified model. The constant rate (k) was determined at 160 degrees C, 170 degrees C and 180 degrees C, and the global activation energy (E-a) of the process was estimated. Experimental results show that oils alone or combined are capable of acting as activators and, together with the other components, vulcanize rubber. However, an adequate crosslinldng density is only reached when stearic acid is present.
引用
收藏
页码：395 / 401
页数：7
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