Effect of aspect ratio of clay on melt extensional process of maleated polyethylene/clay nanocomposites

SummaryMaleated polyethylene composites with different aspect ratios of clays and SiO2 were prepared by melt compounding. Aspect ratio of clay affects significantly the physical and mechanical properties of a nanocomposite. The composite with the highest aspect ratio of clay (Closite 20A) shows the...

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Bibliographic Details
Published inPolymer bulletin (Berlin, Germany) Vol. 46; no. 6; pp. 499 - 505
Main Authors KI HYUN WANG, XU, Mingzhe, YEONG SUK CHOI, IN JAE CHUNG
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 01.07.2001
Berlin Springer Nature B.V
New York, NY
Subjects
Applied sciences
Clay
Composites
Drawability
Exact sciences and technology
Forms of application and semi-finished materials
Low aspect ratio
Mechanical properties
Nanocomposites
Physical properties
Polyethylenes
Polymer industry, paints, wood
Polymers
Silicon dioxide
Storage modulus
Technology of polymers
Polyethylene
Stretchability
Organic clay
Molten state
Laponite
Montmorillonite
Dispersion reinforced material
Experimental study
Functional polymer
Comparative study
Composite material
Rheological properties
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Summary:SummaryMaleated polyethylene composites with different aspect ratios of clays and SiO2 were prepared by melt compounding. Aspect ratio of clay affects significantly the physical and mechanical properties of a nanocomposite. The composite with the highest aspect ratio of clay (Closite 20A) shows the higher storage modulus, complex viscosity, the higher melt tension of polymer and the longer drawability and lower neck-in during the melt processing than those with the low aspect ratio clay (SCPX2231) and SiO2. It also shows an easy orientation in the polymer in melt drawing direction.
ISSN:0170-0839
1436-2449
DOI:10.1007/s002890170038