Publication: Effect of coagent in reactive surface treatment for calcium carbonate filler in polypropylene
Issued Date
1999-12-01
Resource Type
ISSN
09598111
Other identifier(s)
2-s2.0-0033363528
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Mahidol University
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SCOPUS
Bibliographic Citation
Plastics, Rubber and Composites Processing and Applications. Vol.28, No.1 (1999), 11-19
Suggested Citation
A. Tabtiang, R. A. Venables Effect of coagent in reactive surface treatment for calcium carbonate filler in polypropylene. Plastics, Rubber and Composites Processing and Applications. Vol.28, No.1 (1999), 11-19. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/25409
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Title
Effect of coagent in reactive surface treatment for calcium carbonate filler in polypropylene
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Abstract
Calcium carbonate as a filler for polypropylene has been modified with a reactive coupling system comprising acrylic acid (AA) and dicumyl peroxide (DCP), to promote coupling through grafting at the surface of the filler during melt compounding, in conjunction with trimethylolpropane trimethacrylate coagent (TMP) to limit degradation. The main effects and interactions between these three additives have been assessed via their influence upon selected characterisation data. Inferences from the data analyses suggested that there were competing reactions involving AA and TMP initiated by DCP, with AA predominantly grafting directly to the polypropylene when DCP and TMP levels were low, probably owing to the greater reactivity of AA in comparison with TMP. Only when DCP and TMP concentrations were high did TMP have a pronounced effect upon the system. © 1999 IoM Communications Ltd.