ICCAS OpenIR
Rheology and processability of metallocene polyethylene
Zeng, JJ; Li, YY; He, JS
2000-02-01
Source PublicationACTA POLYMERICA SINICA
ISSN1000-3304
Issue1Pages:69-73
AbstractThe rheological property of metallocene polyethylene MPE(ethylene and 1-butene copolymer) and conventional LDPE has been studied in detail by using a Rheometrics Scientifics DSR-200 rheometer with parallel plate geometry. Measurements include steady-state viscosity, dynamic viscoelasticity, followed by linear fitted with the modified cross model. MPE has poor processability due to its narrow MWD. Compared with conventional LDPE, MPE has higher apparent viscosity in middle shear rate range, low sensitivity to shearing, and higher values of shear rate and shear stress in the transition region from Newtonian to power-law behavior. In order to improve its processability, MMPE modified from MPE has been produced. MMPE has all the advantages of metallocene polyethylene, and also has good processability: lower apparent viscosity, higher sensitivity to shearing, and lower values of shear rate and shear stress in the transition region from Newtonian to power-law behavior. The blown film with good mechanical properties has been made from MMPE.
KeywordMetallocene Polyethylene Rheology Modification Processing Film
Indexed BySCI
Language英语
WOS IDWOS:000085450900015
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/76240
Collection中国科学院化学研究所
Corresponding AuthorZeng, JJ
AffiliationChinese Acad Sci, Inst Chem, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zeng, JJ,Li, YY,He, JS. Rheology and processability of metallocene polyethylene[J]. ACTA POLYMERICA SINICA,2000(1):69-73.
APA Zeng, JJ,Li, YY,&He, JS.(2000).Rheology and processability of metallocene polyethylene.ACTA POLYMERICA SINICA(1),69-73.
MLA Zeng, JJ,et al."Rheology and processability of metallocene polyethylene".ACTA POLYMERICA SINICA .1(2000):69-73.
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