Swelling behaviour in n-pentane and mechanical properties of epoxidized natural rubber with different epoxide content

Innovation in Polymer Science and Technology 2016

材料科学;化学

Kinasih, N.A.^1 ; Fathurrohman, M.I.^1 ; Winarto, D.A.^2

Indonesian Rubber Research Institute, Bogor, Indonesia^1

Center for Polymer Technology (STP-BPPT), South of Tangerang, Indonesia^2

关键词: Aging resistance;    Compression set;    Curing characteristics;    Epoxidized natural rubber;    Fourier transform infra reds;    N-pentane;    Scanning calorimetry;    Swelling behaviour;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/223/1/012002/pdf
DOI  :  10.1088/1757-899X/223/1/012002

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Epoxidized natural rubber (ENR) with different level of epoxidation (i.e. 10, 20, 30, 40 and 50 mol% indicated as ENR ENR10, ENR20, ENR30, ENR40 and ENR50, respectively) were prepared. They were then vulcanized by using efficient system vulcanization. The effect of epoxide content on curing characteristic, swelling and mechanical properties in N-pentane was investigated. The Attenuated Resonance Fourier Transform Infrared (ATR-FTIR) and H-Nuclear Magnetic Resonance (H-NMR) were used to determine the epoxidation level. Glass transition (Tg) of ENR samples was determined by using Direct Scanning Calorimetry (DSC). The result revealed that the resistance of ENR in N-pentane increased with increasing epoxidation level, which indicated by decreasing equilibrium mol uptake and diffusion coefficient. The compression set of ENR and aging resistance increased with increasing epoxide content, except ENR50 was due to ENR 50 have two Tg value. However, the value of hardness and tensile strength were not effected by epoxidation level.