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Preliminary studies on the effect of polyethylene octene elastomer on polypropylene nanocomposite: mechanical properties and phase morphology

Hassan, Azman and Lim, J. W. and Wahit, Mat Uzir and Rahmat, Abdul Razak (2004) Preliminary studies on the effect of polyethylene octene elastomer on polypropylene nanocomposite: mechanical properties and phase morphology. In: Proceedings of 13th Scientific Conference & 14th Annual General Meeting Electron Microscopy Society of Malaysia 2004, 13-15 December 2004, The Palm Garden Hotel, Putrajaya.

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Abstract

The melf-direct intercalation method was employed to prepare rubber toughened polypropylene nanocomposites (RTPPNC). The blends composition was kept constant (PP+organocloly 6wt%) while the polyethylene octane (POE) content was varied between 0 and 20w% .Maleated PP (PP-g-MAH) was used as compatibilizer in the blend system. The POE used had 25wt% 1-octene content. X-ray diffractometer (XRD) revealed that an intercalation MMT silicate layer structure was formed in rubber-toughened polypropylene nanocomposite (RTPPNC). Izod impact measurements indicated that the POE addition led to a significant improvement in the impact strength of the RTPPNC, from 6.2 kJ /m2 in un-toughened PP/ Org-MMT nanocomposite to 17.8 kJ/m2 in RTPPNC containing 20wt% POE. However, the flexural modulus and flexural strength of the blends decreased with respect to neat PP as the weight fraction of POE was increased to 20wt%. Scanning electron microscope (SEM) was used for the investigation of the phase morphologry, rubber patlicles size and particle size distribution. SEM study revealed a two-phase morphology where POE as droplets dispersed finely and uniformly in the PP matrix.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Mechanical properties, nanocompositc, polypropylene, polyethylene octane, rubber-toughened
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:6090
Deposited By: Norhani Jusoh
Deposited On:26 Aug 2008 10:54
Last Modified:01 Jun 2010 15:38

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