Rubber mixing process and its relationship with bound rubber and crosslink density

2017 Global Conference on Polymer and Composite Materials

材料科学;化学

Hasan, A.^1 ; Rochmadi^2 ; Sulistyo, H.^2 ; Honggokusumo, S.^3

Chemical Engineering Dept, State Polytechnic of Sriwijaya, Palembang, Indonesia^1

Chemical Engineering Dept, Gadjah Mada University, Yogyakarta, Indonesia^2

Gapkindo (The Indonesian Rubber Association), Jakarta, Indonesia^3

关键词: 1 minutes;    Bound rubber;    Cross-link densities;    Mixing method;    Mixing process;    Non-linear relationships;    Rubber chemicals;    Rubber mixing process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/213/1/012048/pdf
DOI  :  10.1088/1757-899X/213/1/012048

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This research studied the relationship between bound rubber and crosslink density based on rubber mixing process. Bound rubber was obtained after natural rubber was masticated and mixed with rubber chemicals and filler while crosslink density was collected after rubber compound was vulcanized. Four methods are used and each method refers to four ways of incorporating carbon black during mixing. The first method, after rubber was masticated for 5 minutes, the addition of rubber chemicals and filler was done simultaneously. Rubber was masticated for 1 minute and continued mixing of rubber chemicals and filler where mixing was different from first method. This was the second method. The third method was the same as the second method but the filler used N 660 while in the second method N 330. The last method is not the same as the first and second, the rubber is only masticated for 3 minutes and then mixed with filler and followed by rubber chemicals sequentially. The results showed that bound rubber and crosslink density were influenced by mixing and mastication process. Bound rubber dropped and crosslink density was relatively stable in the first three mixing methods for increasing carbon black at the beginning of the mixing process. Bound rubber and crosslink density stated opposite results in the fourth mixing method. The higher the bound rubber the lower the crosslink density. Without regard to mixing methods, there is a non-linear relationship between bound rubber formation and crosslink density determination.