Solid State Science and Technology, Vol. 15, No 2 (2007) 140-145
EFFECT OF POFA ON THERMAL STABILITY OF BENTONITE FILLED POLYPROPYLENE COMPOSITES.
N. Othman , H. Ismail and M. Mariatti
School of Materials & Mineral Resources Engineering, Engineering Campus, University Science Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
The PP composites with the presence of Palm Oil Fatty Acid Additive (POFA) were compounded using a Polydrive Thermo Haake with Rheomix R 600 for about 7 minutes. The temperature and the rotor speed used were 180°C and 50 rpm respectively. POFA was introduced in bentonite filled PP composites as a compatibiliser. The thermal stability of the composites with the presence of POFA measured by DSC show that fusion enthalpy for crystallisation (ΔHc) and melting (ΔHm), the melting and cooling temperature reduced as compared to control. Thermal degradation of composites which is analysed by TGA improved with the addition of POFA compared to control system (without compatibiliser).
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