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Fabrication of Maleic Anhydride and Styrene Grafted Polypropylene and Study of Its Performance as a Compatibilizer in PP/Clay Nanocomposites

Authors
Yoon, Kwan HanUm, Jin HwaKim, Dong HakSon, Younggon
Issue Date
Nov-2017
Publisher
한국고분자학회
Keywords
PP/clay nanocomposites; PP-g-MA-co-styrene; melt grafting
Citation
폴리머, v.41, no.6, pp 955 - 961
Pages
7
Journal Title
폴리머
Volume
41
Number
6
Start Page
955
End Page
961
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/7066
DOI
10.7317/pk.2017.41.6.955
ISSN
0379-153X
2234-8077
Abstract
In our previous study, we investigated the performance of a PP grafted with maleic anhydride (MA) and styrene (PP-g-MA-St) as compatibilizers in PP/clay nanocomposites. We found that the incorporation of styrene prevents molecular weight reduction of the PP main chain upon high loading of a radical initiator for high graft degree of MA. The compatibilizers (PP-g-MA-St) thus obtained show good compatibilizing performance in PP/clay nanocomposites for both stiffness and toughness. In this study, we investigated the crystallization behavior of the PP-g-MA-St. In previous study, we fabricated PP-g-MA-St with high MA loading. PP-g-MA-St with high MA becomes more brittle. In this study, more tough PP-g-MA-St with reduced MA loading was prepared and the compatibilizing effect of the PP-g-MA-St thus prepared was evaluated. Izod impact of PP/clay/PP-g-MA-St nanocomposites was measured at 25 and -10 degrees C. Izod impact strength was highest at the 10 wt% of compatibilizer (PP-g-MA-St) and 0.5 phr of MA loading.
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