Impact Strength of High Density Solid-State Microcellular Polycarbonate Foams-Reference-Cited by-同舟云学术

Impact Strength of High Density Solid-State Microcellular Polycarbonate Foams

Published:2000-09-19 Issue:2 Volume:123 Page:229-233
ISSN:0094-4289
Container-title:Journal of Engineering Materials and Technology
language:en
Short-container-title:

Author:

Barlow Chris¹,Kumar Vipin²,Flinn Brian¹,Bordia Rajendra K.¹,Weller John³

Affiliation:

1. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195

2. Department of Mechanical Engineering, University of Washington, Seattle, WA 98195

3. Deparment of Mechanical Engineering, University of Washington, Seattle, WA 98195

Abstract

The effect of density (relative densities 0.33 to 0.90) on the impact behavior of microcellular polycarbonate (PC) was investigated. Cell size and foaming gas content were also considered. Flexed-beam Izod impact tests were conducted and the impact strength of these foams appears to be a strong function of both density and cell size. The impact strength was observed to improve over the unprocessed polycarbonate’s impact strength for foams with relative densities of 60 percent and above. In terms of cell size, the impact strength increased with increasing cell size at a given density.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/materialstechnology/article-pdf/123/2/229/5556947/229_1.pdf

Reference11 articles.

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2. Collias, D. I., Baird, D. G., and Borggreve, R. J. M., 1994, “Impact Toughening of Polycarbonate by Microcellular Foaming,” Polymer, 35, No. 18, pp. 3978–3983.

3. Seeler, K. A., and Kumar, V., 1995, “Decoupling the Effects of the Matrix Properties and Foam Structure on the Mechanical Properties of Microcellular Foam by Sub-Tg Annealing,” J. Reinf. Plast. Compos., 14, pp. 1054–1068.

4. Kumar, V., and Weller, J. E., 1994, “Production of Microcellular Polycarbonate Using Carbon Dioxide for Bubble Nucleation,” ASME J. Ind., 116, pp. 413–421.

5. Weller, J. E., 1996, “The Effects of Processing and Microstructure on the Tensile Behavior of Microcellular Foams,” Ph.D. thesis, Dept. of Mechanical Engineering, University of Washington, Seattle.

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