NR/EPDM Elastomeric rubber blend miscibility evaluation by two-level fractional factorial design of experiment

ABD RAZAK , JEEFFERIE and MOHAMAD, NORAIHAM (2014) NR/EPDM Elastomeric rubber blend miscibility evaluation by two-level fractional factorial design of experiment. AIP Proceedings - The 2014 UKM FST Postgraduate Colloquium, 1614. pp. 82-89. ISSN doi:10.1063/1.4895176 (In Press)

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Abstract. Fractional 25 two-level factorial design of experiment (DOE) was applied to systematically prepare the NR/EPDM blend using Haake internal mixer set-up. The process model of rubber blend preparation that correlates the relationships between the mixer process input parameters and the output response of blend compatibility was developed. Model analysis of variance (ANOVA) and model fitting through curve evaluation finalized the R2 of 99.60% with proposed parametric combination of A = 30/70 NR/EPDM blend ratio; B = 70°C mixing temperature; C = 70 rpm of rotor speed; D = 5 minutes of mixing period and E = 1.30 phr EPDM-g-MAH compatibilizer addition, with overall 0.966 desirability. Model validation with small deviation at +2.09% confirmed the repeatability of the mixing strategy with valid maximum tensile strength output representing the blend miscibility. Theoretical calculation of NR/EPDM blend compatibility is also included and compared. In short, this study provides a brief insight on the utilization of DOE for experimental simplification and parameter inter-correlation studies, especially when dealing with multiple variables during elastomeric rubber blend preparation.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Manufacturing Engineering > Department of Engineering Materials
Depositing User: En. Jeefferie Abd Razak
Date Deposited: 19 Nov 2014 01:35
Last Modified: 28 May 2015 04:33
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