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The phase inversion and morphology of nylon 1010/polypropylene blends
Author(s) -
Zhang Xiaomin,
Yin Zhihui,
Yin Jinghua
Publication year - 1996
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/(sici)1097-4628(19961107)62:6<893::aid-app5>3.0.co;2-k
Subject(s) - polypropylene , materials science , polymer blend , phase inversion , composite material , nylon 6 , glycidyl methacrylate , particle size , phase (matter) , extrusion , morphology (biology) , nylon 66 , polymer , polymer chemistry , chemical engineering , copolymer , chemistry , polyamide , membrane , biochemistry , organic chemistry , genetics , biology , engineering
Noncompatibilized and compatibilized blends of nylon 1010/PP blends having five different viscosity ratios were prepared by melt extrusion. Glycidyl methacrylate‐ grafted ‐polypro‐pylene (PP‐ g ‐GMA) was used as the compatibilizer to enbance the adhesion between the two polymers and to stabilize the blend morphology. The effect of the viscosity ratio on the morphology of nylon 1010/polypropylene blends was investigated, with primary attention to the phase‐inversion behavior and the average particle size of the dispersed phase. The relationship between the mechanical properties and the phase‐inversion composition was investigated as well. Investigation of the morphology of the blends by microscopy indicated that the smaller the viscosity ratio (ηpp/ηpa) the smaller was the polypropylene concentration at which the phase inversion took place and polypropylene became the continuous phase. The compatibilizer induced a sharp reduction of particle size, but did not have a major effect on the phase‐inversion point. An improvement in the mechanical properties was found when nylon 1010 provided the matrix phase. © 1996 John Wiley & Sons, Inc.