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A compatibilized composite of recycled polypropylene filled with cellulosic fiber from recycled corrugated paper board: Mechanical properties, morphology, and thermal behavior
Author(s) -
Lin Zhidan,
Chen Chao,
Guan Zixian,
Tan Shaozao,
Zhang Xiuju
Publication year - 2011
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.34321
Subject(s) - materials science , polypropylene , composite material , maleic anhydride , copolymer , thermal stability , toughness , izod impact strength test , composite number , compatibilization , vicat softening point , softening point , polymer blend , polymer , ultimate tensile strength , chemical engineering , engineering
This article deals with the feasibility of using recycled corrugated paper board (rPF) as the reinforcing material for recycled plastics. The composites of recycled polypropylene (rPP) and rPF were prepared by extrusion compounding and injection molding, and the rPP/rPF composites compatibilized by maleic anhydride grafted PP (PP‐ g ‐MA), maleic anhydride grafted ethylene‐1‐octene copolymer (POE‐ g ‐MA), and maleic anhydride grafted styrene‐ethylene‐butylene‐styrene copolymer (SEBS‐ g ‐MA) were also prepared. The crystallization and melting behavior, mechanical properties, thermal stability, and morphology of these composites were studied. The results indicated that rPF promoted the crystallization, enhanced the strength and toughness of rPP/rPF composites to some extent while decreased thermal stability at the same time. PP‐ g ‐MA and POE‐ g ‐MA improved the dispersion and interface adhesion of rPF, and further upgraded the mechanical properties and vicat softening temperatures. Among these compatibilizers, PP‐ g ‐MA was most favorable to the strength improvement while POE‐ g ‐MA was most favorable to the toughness improvement. As for SEBS‐ g ‐MA, it had no obvious modification effect. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011