Effect of clay and compatibilizer on the mechanical/thermal properties of microcellular injection molded low density polyethylene nanocomposites

In this study, the effect of montmorillonite (MMT) and compatibilizers content on the mechanical/thermal properties of low density polyethylene (LDPE) was studied. Maleated LDPE was compounded in a kneader with different MMT loadings. The maleic anhydride(MA)-grafted LDPE (LDPEgMA) nanocomposites we...

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Bibliographic Details
Published in:International communications in heat and mass transfer 2009-05, Vol.36 (5), p.471-479
Main Authors: Hwang, Shyh-shin, Hsu, Peming P., Yeh, Jui-ming, Yang, Jui-pin, Chang, Kung-chin, Lai, Ying-zhong
Format: Article
Language:English
Subjects:
Applied sciences
Compatibility
Composites
Density
Exact sciences and technology
Exchange resins and membranes
Foaming
Forms of application and semi-finished materials
Injection molding
LDPE
Maleic anhydride
Microcellular injection molding
Nanocomposites
Polyethylenes
Polymer industry, paints, wood
Technology of polymers
Thermal properties
Wear resistance
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Summary:In this study, the effect of montmorillonite (MMT) and compatibilizers content on the mechanical/thermal properties of low density polyethylene (LDPE) was studied. Maleated LDPE was compounded in a kneader with different MMT loadings. The maleic anhydride(MA)-grafted LDPE (LDPEgMA) nanocomposites were then molded by conventional and microcellular injection molding process. The effect of MMT and compatibilizers content on the mechanical/thermal properties was investigated. The results showed that LDPEgMA nanocomposites (up to 5 wt.% MMT loading) have better tensile strength and wear resistance than their neat counterparts, using either the conventional or microcellular injection molding process. In addition to the mechanical properties, the LDPEgMA nanocomposites also have better foaming property (i.e., cell size and cell density) than their neat counterparts. The thermal stability of the LDPE material is also improved by the addition of MMT.
ISSN:0735-1933
1879-0178
DOI:10.1016/j.icheatmasstransfer.2009.02.005