ICCAS OpenIR
Rheological properties and morphology of compatibilized, poly(butylene terephthalate)/linear low-density polyethylene alloy
Yang, JH; Shi, D; Gao, Y; Song, YX; Yin, JH
2003-04-04
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume88Issue:1Pages:206-213
AbstractThe rheological behavior of PBT/LLDPE and PBT/LLDPE-g-AA blends [where PBT is poly(butylene terephthalate), LLDPE is linear low-density polyethylene, and AA is acrylic acid] under a capillary flow was investigated with a capillary rheometer. The Utracki equation was used to describe the viscosity-composition dependence of PBT/LLDPE and PBT/LLDPE-g-AA blends at low shear stresses. However, at high shear stresses, this equation was not suitable for these blending systems. There existed a maximum on the curves of the entrance pressure drop versus the blending compositions, and the interlayer slip factor beta in the Utracki equation was related not only to the shear stress but also to the elasticity difference of the two blending components. Morphological observations indicated that at high shear rates, there existed two different morphologies at different positions of the extruclates, and this was the reason that the Utracki equation failed. Near the wall of the capillary, low-viscosity PBT stratified, and this resulted in an additional decrease in the viscosities of the blending systems. (C) 2003 Wiley Periodicals, Inc.
KeywordLinear Polyethylene (Pe) Alloys Compatibilization Rheology Morphology
DOI10.1002/app.11647
Indexed BySCI
Language英语
WOS IDWOS:000180754900026
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80990
Collection中国科学院化学研究所
Corresponding AuthorYang, JH
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Yang, JH,Shi, D,Gao, Y,et al. Rheological properties and morphology of compatibilized, poly(butylene terephthalate)/linear low-density polyethylene alloy[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2003,88(1):206-213.
APA Yang, JH,Shi, D,Gao, Y,Song, YX,&Yin, JH.(2003).Rheological properties and morphology of compatibilized, poly(butylene terephthalate)/linear low-density polyethylene alloy.JOURNAL OF APPLIED POLYMER SCIENCE,88(1),206-213.
MLA Yang, JH,et al."Rheological properties and morphology of compatibilized, poly(butylene terephthalate)/linear low-density polyethylene alloy".JOURNAL OF APPLIED POLYMER SCIENCE 88.1(2003):206-213.
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