On the preparation of EPDM-g-MAH compatibilizer via melt-blending method

A. Razak, J. and Mohamad, N. and Mahamood, M. A. and Jaafar, R. and Othman, I. S. and Ismail, M. M. and Tee, L. K. and Ramli, Junid and Mustafa, Z. (2019) On the preparation of EPDM-g-MAH compatibilizer via melt-blending method. Journal of Mechanical Engineering and Sciences (JMES), 13 (3). 5424 -5440. ISSN 2289-4659 (print); 2231-8380 (online). (Published)

Pdf (Open access)
On the preparation of EPDM-g-MAH compatibilizer .pdf
Available under License Creative Commons Attribution Non-commercial.

Download (871kB) | Preview


This paper presents an experimental investigation to determine the optimum composition of maleic anhydride (MAH) and dicumyl peroxide (DCP) as initiator for ethylene-propylene-diene-monomer grafted MAH (EPDM-g-MAH) compatibilizer preparation, using response surface methodology (RSM) approach. EPDM-g-MAH was prepared in the laboratory scale by melt blending method using an internal mixer. For this study, the effects of MAH (2.50 – 7.50 wt.%) and DCP (0.10 – 0.30 wt.%) towards grafting efficiency was determined. Two level full factorial design of experiment (DOE) is applied to establish the relationship between these two independent factors of raw materials. Analysis of variance (ANOVA) and the optimization menu were utilized to decide the raw materials formulation with maximum grafting efficiency. Quantitative analysis based on infra-red (IR) spectral intensity supported by 1H-NMR spectral are used to propose for EPDM-g-MAH grafting mechanism. Standard calibration curve for quantity ratio plot was exponential with R2 = 89.19%. It was found that an optimum about 8.52% of MAF grafting efficiency has been yielded with DCP factor has contributed larger effect at 67.45% of contribution effect. Anhydride stretching of grafted C=O as confirmed by FTIR peak at 1713 cm-1 and 1770 – 1792 cm-1 has responsible for MAH grafting into EPDM rubber. Based on FTIR, 1H-NMR and 2D-COSY spectral analysis, reaction mechanism for EPDM-g-MAH grafting was successfully proposed with two possible termination steps.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: EPDM-g-MAH grafting; RSM; DOE; Standard calibration; Reaction mechanism; ANOVA; IR quantitative analysis
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
T Technology > TS Manufactures
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 21 Nov 2019 03:50
Last Modified: 21 Nov 2019 03:50
URI: http://umpir.ump.edu.my/id/eprint/26054
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item