Polymer Engineering & Science

Volume 38, Issue 7 p. 1205-1215

Article

Processing and characterization of microcellular foamed high-density polythylene/isotactic polypropylene blends

Saeed Doroudiani,

Saeed Doroudiani

Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto, Ontario, Canada M5S 3E5

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Chul B. Park,

Corresponding Author

Chul B. Park

Department of Mechanical and Industrial Engineering University of Toronto Toronto, Ontario, Canada M5G 3G8

Department of Mechanical and Industrial Engineering University of Toronto Toronto, Ontario, Canada M5G 3G8Search for more papers by this author

Mark T. Kortschot,

Mark T. Kortschot

Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto, Ontario, Candana M5S 3E5

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Saeed Doroudiani,

Saeed Doroudiani

Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto, Ontario, Canada M5S 3E5

Search for more papers by this author

Chul B. Park,

Corresponding Author

Chul B. Park

Department of Mechanical and Industrial Engineering University of Toronto Toronto, Ontario, Canada M5G 3G8

Department of Mechanical and Industrial Engineering University of Toronto Toronto, Ontario, Canada M5G 3G8Search for more papers by this author

Mark T. Kortschot,

Mark T. Kortschot

Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto, Ontario, Candana M5S 3E5

Search for more papers by this author

First published: 08 April 2004

https://doi.org/10.1002/pen.10289

Citations: 225

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Abstract

In this paper, a study on the batch processing and characterization of microcellular foamed high-density polyethylene (HDPE/iPP) blends is reported. A microcellular plastic is a foamed polymer with a cell density greater than 10⁹ cells/cm³ and fully grown cells smaller than 10 µm. Recent studies have shown that the morphology and crystallinity of semicrystalline polymers have a great influence on the solubility and diffusivity of the blowing agent and on the cellular structure of the resulting foam in microcellular batch processing. In this research, blends of HDPE and iPP were used to produce materials with variety of crystalline and phase morphologies to enhance the subsequent microcellular foaming. It was possible to produce much finer and more uniform foams with the blends than with neat HDPE and iPP. Moreover, the mechanical properties and in particular the impact strength of the blends were significantly improved by foaming.

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Volume38, Issue7

July 1998

Pages 1205-1215

Processing and characterization of microcellular foamed high-density polythylene/isotactic polypropylene blends

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Processing and characterization of microcellular foamed high-density polythylene/isotactic polypropylene blends

Abstract

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