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Blending of Epoxidised Palm Oil with Epoxy Resin: The Effect on Morphology, Thermal and Mechanical Properties

Man, Zakaria and Sarwono, Ariyanti and Bustam, M Azmi (2012) Blending of Epoxidised Palm Oil with Epoxy Resin: The Effect on Morphology, Thermal and Mechanical Properties. J Polym Environ, 20 . pp. 540-549.

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Abstract

Epoxy resin prepared by the reaction of a diglycidyl ether of bisphenol A (DGEBA) and m-xylylenediamine (m-XDA) was modified with 10% wt of epoxidized palm oil (EPO). The EPO was first pre-polymerized with m-XDA at various temperatures and reaction times. The resulting product was then mixed with the epoxy resin at 40 �C and allowed to react at 120 �C for another 3 h. The fully reacted DGEBA/m-XDA/EPO blend was characterized by using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermal gravimetric analysis, tensile test, hardness indentation and dynamic mechanical analysis. The SEM study shows that different types of morphology, ranging from phase separated to miscible blends were obtained. A miscible blend was obtained when the m-XDA and EPO were reacted for more than 2 h. The results from DSC analysis show that the incorporation of EPO at 10% wt in the epoxy blend reduced the glass transition temperature (Tg). The lowered Tg and mechanical properties of the modified epoxy resins are caused by a reduction in crosslinking density and plasticizer effect

Item Type:Article
Subjects:T Technology > TP Chemical technology
Academic Subject One:Polymer
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:8683
Deposited By: Dr Zakaria Man
Deposited On:13 Dec 2012 11:39
Last Modified:19 Jan 2017 08:22

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