Melt rheological properties of polypropylene-polyarnide6 blends compatibilized with maleic anhydride-grafted polypropylene

doi:10.1002/pi.2036

CORC > 化学研究所 > 中国科学院化学研究所

	Melt rheological properties of polypropylene-polyarnide6 blends compatibilized with maleic anhydride-grafted polypropylene
	Shi, D ; Jiang, FD ; Ke, Z ; Yin, JH ; Li, RKY
刊名	POLYMER INTERNATIONAL
	2006-06-01
卷号	55 期号:6 页码:701-707
关键词	Polypropylene Polyamide 6 Blends Capillary Flow
ISSN号	0959-8103
DOI	10.1002/pi.2036
英文摘要	The melt rheological properties of binary uncompatibilized polypropylene -polyamide6 (PP-PA6) blends and ternary blends compatibilized with maleic anhydride-grafted PP (PP-PP-g-MAH-PA6) were studied using a capillary rheometer. The experimental shear viscosities of blends were compared with those calculated from Utracki's relation. The deviation value delta between these two series of data was obtained. In binary PP-PA6 blends, when the compatibility between PP and PA6 was poor, the deformation recovery of dispersed PA6 particles played the dominant role during the capillary flow, the experimental values were smaller than those calculated, and delta was negative. The higher the dispersed phase content, the more deformed the droplets were and the lower the apparent shear viscosity. Also, the absolute value of delta increased with the dispersed phase composition. In ternary PP-PP-g-MAH-PA6 systems, when the compatibility between PP and PA6 was enhanced by PP-g-MAH, the elongation and break-up of the dispersed particles played the dominant role, and the experimental values were higher than calculated. It was observed that the higher the dispersion of the PA6 phase, the higher the delta values of the ternary blends and the larger the positive deviation. Unlike uncompatibilized blends, under high shear stress with higher dispersed phase content, the PP-g-PA6 copolymer in compatibilized blends was pulled out from the interface and formed independent micelles in the matrix, which resulted in reduced total apparent shear viscosity. The delta value decreased with increasing shear stress. (c) 2006 Society of Chemical Industry.
语种	英语
出版者	JOHN WILEY & SONS LTD
WOS记录号	WOS:000237548400017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/58865]
专题	中国科学院化学研究所
通讯作者	Shi, D
作者单位	1.Hubei Univ, Fac Chem & Mat Sci, Wuhan 430062, Peoples R China 2.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Shi, D,Jiang, FD,Ke, Z,et al. Melt rheological properties of polypropylene-polyarnide6 blends compatibilized with maleic anhydride-grafted polypropylene[J]. POLYMER INTERNATIONAL,2006,55(6):701-707.
APA	Shi, D,Jiang, FD,Ke, Z,Yin, JH,&Li, RKY.(2006).Melt rheological properties of polypropylene-polyarnide6 blends compatibilized with maleic anhydride-grafted polypropylene.POLYMER INTERNATIONAL,55(6),701-707.
MLA	Shi, D,et al."Melt rheological properties of polypropylene-polyarnide6 blends compatibilized with maleic anhydride-grafted polypropylene".POLYMER INTERNATIONAL 55.6(2006):701-707.