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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