Degradation of blending vulcanized natural rubber and nitril rubber (NR/NBR) by dimethyl ether through variation of elastomer ratio

2nd International Conference on Oleo and Petrochemical Engineering

Saputra, A.H.^1 ; Juneva, S.^1 ; Sari, T.I.^2 ; Cifriadi, A.^3

Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok

16424, Indonesia^1

Department of Chemical Engineering, Faculty of Engineering, Sriwijaya University, Kampus Indralaya, Indralaya

30662, Indonesia^2

Indonesian Rubber Research Institute, Jl. Salak Bogor 16151, Indonesia^3

关键词: Acrylonitrile content;    Blending ratio;    Degradation mechanism;    Dimethyl ethers;    Nitrile rubbers;    Rubber material;    Seal materials;    Strength and elongations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/345/1/012035/pdf
DOI  :  10.1088/1757-899X/345/1/012035

来源: IOP

【 摘 要 】

Dimethyl ether can cause degradation of the rubber material seal in some applications. In order to use of natural rubber in industry, research about a blending of natural rubber (NR) and nitrile rubber (NBR) to produce rubber to meet the standard seal material application were conducted. This study will observe the degradation mechanisms that occur in the blending natural rubber and nitrile rubber (NR/NBR) by dimethyl ether. Nitrile rubber types used in this study is medium quality nitrile rubber with 33% of acrylonitrile content (NBR33). The observed parameters are percent change in mass, mechanical properties and surface morphology. This study is limited to see the effect of variation vulcanized blending ratio (NR/NBR33) against to swelling. The increase of nitrile rubber (NBR33) ratio of blending rubber vulcanized can reduce the tensile strength and elongation. The best elastomer variation was obtained after comparing with the standard feasibility material of seal is rubber vulcanized blending (NR/NBR33) with ratio 40:60 NR: NBR.