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Study of dynamically cured PP/MAH‐ g ‐PP/talc/epoxy composites
Author(s) -
Jiang Xueliang,
Zhang Yong,
Zhang Yinxi
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22967
Subject(s) - talc , epoxy , composite material , materials science , polypropylene , thermal stability , thermogravimetric analysis , composite number , chemistry , organic chemistry
Abstract In the present study, an epoxy resin was dynamically cured in a polypropylene (PP)/maleic anhydride–grafted PP (MAH‐ g ‐PP)/talc matrix to prepare dynamically cured PP/MAH‐ g ‐PP/talc/epoxy composites. An increase in the torque at equilibrium showed that epoxy resin in the PP/MAH‐ g ‐PP/talc composites had been cured by 2‐ethylene‐4‐methane‐imidazole. Scanning electron microscopy analysis showed that MAH‐ g ‐PP and an epoxy resin had effectively increased the interaction adhesion between PP and the talc in the PP/talc composites. Dynamic curing of the epoxy resin further increased the interaction adhesion. The dynamically cured PP/MAH‐ g ‐PP/talc/epoxy composites had higher crystallization peaks than did the PP/talc composites. Thermogravimetric analysis showed that the addition of MAH‐ g ‐PP and the epoxy resin into the PP/talc composites caused an obvious improvement in the thermal stability. The dynamically cured PP/MAH‐ g ‐PP/talc/epoxy composites had the best thermal stability of all the PP/talc composites. The PP/MAH‐ g ‐PP/talc/epoxy composites had better mechanical properties than did the PP/MAH‐ g ‐PP/talc composites, and the dynamically cured PP/MAH‐ g ‐PP/talc/epoxy composites had the best mechanical properties of all the PP/talc composites, which can be attributed to the better interaction adhesion between the PP and the talc. The suitable content of epoxy resin in the composites was about 5 wt %. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci, 2006

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