Effect of polycarbonate molecular weight on polymer blends of polycarbonate and ABS | Zendy

Wu JiannShing | Zendy; Shen ShuChen | Zendy; Chang FengChih | Zendy

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Effect of polycarbonate molecular weight on polymer blends of polycarbonate and ABS

Author(s) -

Wu JiannShing,

Shen ShuChen,

Chang FengChih

Publication year - 1993

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.1993.070500809

Subject(s) - polycarbonate , materials science , acrylonitrile butadiene styrene , composite material , viscosity , polymer , toughness , styrene , polymer blend , polymer chemistry , annealing (glass) , copolymer

The melt viscosity of polycarbonate/acrylonitrile‐butadiene‐styrene (PC/ABS) blends relative to PC is significantly lower, even lower than that of pure ABS in some compositions. Annealing above the T g of PC coalesces and coarsens phase structure in core and skin regions. Increase in the molecular weight of PC in PC/ABS blends results in low‐temperature fracture toughness improvement but suffers from the disadvantage of higher melt viscosity. The selection of PC in PC/ABS blends must be a compromise between the toughness advantages of higher PC molecular weight and the disadvantage of higher melt viscosity. © 1993 John Wiley & Sons, Inc.

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