EFFECT OF ETHYLENE-PROPYLENE COPOLYMER WITH RESIDUAL PE CRYSTALLINITY ON MECHANICAL-PROPERTIES AND MORPHOLOGY OF PP/HDPE BLENDS


Autoria(s): ZHU W; ZHANG XQ; FENG ZL; HUANG BT
Data(s)

1995

Resumo

Morphology and mechanical properties of polypropylene (PP)/high density polyethylene (HDPE) blends modified by ethylene-propylene copolymers (EPC) with residual PE crystallinity were investigated. The EPC showed different interfacial behavior in PP/HDPE blends of different compositions. A 25/75 blend of PP/HDPE (weight ratio) showed improved tensile strength and elongation at break at low EPC content (5 wt %). For the PP/HDPE = 50/50 blend, the presence of the EPC component tended to make the PP dispersed phase structure transform into a cocontinuous one, probably caused by improved viscosity matching of the two components. Both tensile strength and elongation at break were improved at EPC content of 5 wt %. For PP/HDPE 75/25 blends, the much smaller dispersed HDPE phase and significantly improved elongation at break resulted from compatibilization by EPC copolymers. (C) 1995 John Wiley & Sons, Inc.

Identificador

http://ir.ciac.jl.cn/handle/322003/26463

http://www.irgrid.ac.cn/handle/1471x/159324

Idioma(s)

英语

Fonte

ZHU W;ZHANG XQ;FENG ZL;HUANG BT.EFFECT OF ETHYLENE-PROPYLENE COPOLYMER WITH RESIDUAL PE CRYSTALLINITY ON MECHANICAL-PROPERTIES AND MORPHOLOGY OF PP/HDPE BLENDS,JOURNAL OF APPLIED POLYMER SCIENCE,1995,58(3):551-557

Palavras-Chave #POLYPROPYLENE BLENDS #POLYETHYLENE BLENDS #BEHAVIOR
Tipo

期刊论文