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A Brief Analysis of Thermal Properties of Mixed (PP/EPR)/ABS with Five Model Compatibilizers | Chapter 04 | Emerging Trends in Engineering Research and Technology Vol. 1

The inluences of incorporating compatibilizers E-EA-MAH, E-MA-GMA, E-AM, SEBS KRATON G, or PP-g-MAH on the thermal properties of mixed (polypropylene/ethylene propylene rubber)/acrylonitrile butadiene styrene (PP/EPR)/ABS have been investigated. It has been shown that the mixture of polypropylene and ABS is not sufficiently stable. This instability has referred to an incompatibility between these two copolymers. Thus, in this study, to improve this behavior, we introduce the compatibilizing agents mentioned above. They are all from commerce. The objective for each mixture developed in this study is to have a composite material with optimal thermal stability. The temperature range explored for all of our mixes ranges from -100°C to 200°C (increase of 10°C/min or decrease of -10°C/min), by two sweeps back and forth with delays of two minutes at the limits of this interval. DSC investigations have revealed that the incorporation of 5% of ABS in the copolymer (PP/EPR) does not fundamentally affect the thermal properties of the basic copolymer; additionally, the addition of 1.5% of each of the compatibilizers in the basic mixture does not significantly alter the crystallization temperature values and the melting of the -P- sequences. Here is a variation of melting enthalpy values of the -P- sequences of 18.23% using SEBS KRATON G and of 10.38% using E-AM-GMA. When the rate of each of the compatibilizers increases to 5%, overall crystallization enthalpies of -P- sequences are almost kept unchanged, except for the case of using the compatibilizer E-AM-GMA with a variation of 8.42%. Here is a minor variation of the melting enthalpy of -P- sequences with higher levels of compatibilizer. He incorporation of 5% ABS copolymer in the PP/EPR does not significantly alter the thermal properties of the basic structure of (PP/EPR)/ABS.

Author(s) Details

Dr. Noah Pierre Marcel Anicet
Laboratory of Mechanics, ENSET, University of Douala, P.O.Box 1872, Douala, Cameroon and Department of Mechanical Engineering, ENSET, University of Douala, P.O.Box 1872, Douala, Cameroon.


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