Thermal and Rheological Behavior of Ultrafine Fly Ash Filled LDPE Composites
IR@AMPRI: CSIR-Advanced Materials and Processes Research Institute, Bhopal
View Archive Info| Field | Value | |
| Title |
Thermal and Rheological Behavior of Ultrafine Fly Ash
Filled LDPE Composites
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| Creator |
Dr., S A R Hashmi
Dr., Pratibha Sharma Navin, Chand |
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| Subject |
Polymeric Materials
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| Description |
The specimens containing different volume
fractions of ultrafine fly ash in LDPE were prepared with
the help of two roll mixing mill and the hot-plate compression-
molding machine. Thermal and rheological properties
were evaluated using DSC and parallel-plate rotational-
rheometer. The effect of composition variation on
melt enthalpy, crystallinity, shear viscosity, shear stress
and first normal stress difference was studied and
reported here. The addition of ultrafine fly ash in LDPE
decreased the melt enthalpy of the specimen. Slight
decrease in the crystallinity of LDPE was observed on
addition of fly ash. The shear stress as well as the shear
viscosity both increased with the addition of ultrafine fly
ash in LDPE. Two regions of shear thinning were
observed at 2008C for fly ash filled LDPE. The first normal
stress difference (N1) reduced with fly ash content
and with the increased temperature. The values of N1
remained almost invariable at low shear region however
a proportional increase was observed beyond the shear
stress of 10 kPa.
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| Publisher |
Wiley Online Library
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| Date |
2008
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| Type |
Article
PeerReviewed |
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| Identifier |
Dr., S A R Hashmi and Dr., Pratibha Sharma and Navin, Chand (2008) Thermal and Rheological Behavior of Ultrafine Fly Ash Filled LDPE Composites. Journal of Applied Polymer Science, 107. pp. 2196-2202. ISSN 0021-8995
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| Relation |
http://ampri.csircentral.net/27/
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