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The effect of rubber type and rubber functionality on the morphological and mechanical properties of rubber-toughened polyamide 6/polypropylene nanocomposites

Wahit, Mat Uzir and Hassan, Azman and Mohd. Ishak, Zainal Ariffin and Rahmat, Abdul Razak and Othman, Norhayani (2006) The effect of rubber type and rubber functionality on the morphological and mechanical properties of rubber-toughened polyamide 6/polypropylene nanocomposites. Polymer Journal, 38 (8). pp. 767-780. ISSN 0032-3896

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Official URL: http://dx.doi.org/10.1295/polymj.PJ2005141

Abstract

Rubber toughened polyamide 6/polypropylene (PA6/PP) nanocomposites containing 4 wt % of organophilic modified montmorilonite (OMMT) were produced by melt compounding followed by injection moulding. Four different types of elastomer were incorporated into the blends as a toughener, i.e., ethylene-octene elastomer (POE), ethylene-propylene elastomer (EPR), maleated POE (POEgMAH) and maleated EPR (EPRgMAH). The influences of maleating on the interfacial adhesion and mechanical properties of the nanocomposites were investigated in term of mechanical testing, the X-ray diffraction (XRD) and scanning electron microscope (SEM) observation. The results showed that modulus and strength of the nanocomposites was not significantly affected by types of elastomer and their functionality. However, the toughness of the nanocomposites toughened by maleated elastomer was higher than the unmaleated elastomer. The SEM observation revealed that rubber functionality reduces the elastomer particle size in the PA6/PP matrix due to the in situ formation of graft copolymer between maleated elastomer and PA6 during melt processing. XRD revealed that the type of elastomer and functionality did not affect the dispersion of the organoclay in the system.

Item Type:Article
Uncontrolled Keywords:polyamide 6/polypropylene blends, rubber functionality, nanocomposites, mechanical properties, organoclay
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:768
Deposited By: Kamariah Mohamed Jong
Deposited On:26 Nov 2012 01:51
Last Modified:26 Nov 2012 03:31

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