Foam extrusion: principles and practice

by Lee, S.-T., (Shau-Tarng) Park, Chul B.

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Title Statements

Full title :Foam extrusion : principles and practice / edited by S.-T. Lee and Chul B. Park.

Summary

"Thermoplastic polymer is well known for its useful properties and thermal-reversible morphology. Modern processing systems have been developed to fully capture its structural transformation benefits for mass production. When gas is successfully incorporated, thermoplastic foam became a popular member in the thermoplastic family. Basically, foam can be defined as a gaseous void surrounded by a much denser continuum matrix, which is usually in a liquid or solid phase. It exists widely in nature; such as: in cellulositic wood, marine organisms, and other phenomena, and it can be made using synthetic processes (i.e., foamed plastics). The presence of gas voids can be outside, frothing, or inside, irreversible volume expansion. In most cases, gas phase possesses dramatically different properties and structures (or states) than the surrounding solid phase, as opposed to composite blends, to make a lighter heterogeneous cellular structure [1, 2]. A material property and density chart is shown in Figure 1.1 [3, 4]. It, more or less, seems to follow a linear band in the log-log performance with density chart. Foamed material evidently extends the lower limit of the property spectrum of the solid by at least a magnitude. When very tiny voids are evenly dispersed in the solid matrix without seriously disrupting its continuity, the parent property hardly varies when weight reduction is slight. As cell size, quantity, and its distribution vary, a much different composite property spectrum can thus be obtained. In other words, foamed material's performance/weight ratio can markedly vary from the solid material depending upon cell density, integrity, and morphology"--

Edition Statements

Publication Date:©2014
Edition:Second edition

Publication Statements

Publisher(s):Taylor & Francis
Place of Publication:Boca Raton
Language:eng
Publication Date:©2014

The Physical Object

Description:xvi, 599 pages, 8 unnumbered pages of plates : : illustrations ; : [approximately 23-29] cm.

Edition Identifiers

ISBN:9781439898598, 1439898596
oclc:ocn892788289
LC Classification:TP1175.E9
Dewey Decimal:668.493

1. Introduction / Shau-Tarng Lee -- 2. Statistical thermodynamics of gas solubility in polymers / Pierre Moulinié and Robert Simha -- 3. Rheology of thermoplastic foam extrusion process / Richard Gendron and Louis E. Daigneault -- 4. Material strength in molten state for foam / Masayuki Yamaguchi -- 5. Fundamental mechanisms of cell nucleation in plastic foam processing / Anson Wong and Chul B. Park -- 6. Foam nucleation in gas-dispersed polymeric systems / Shau-Tarng Lee -- 7. Foam growth in polymers / N.S. Ramesh -- 8. Polymeric foaming simulation and visual observation : batch and continuous / Masahiro Ohshima -- 9. Process design for thermoplastic foam extrusion / Leonard F. Sansone -- 10. Extrusion equipment for foam processing / William C. Thiele and Charles Martin -- 11. Foam extrusion with physical blowing agents : practical approach / Kun Sup Hyun and Myung-Ho Kim -- 12. Mixing design for foam extrusion : analysis and practices / Chitai Carey Yang and David I. Bigio -- 13. Foaming agents for foam extrusion / Thomas Pontiff -- 14. Extrusion of high-density and low-density microcellular plastics / Patrick C. Lee and Chul B. Park -- 15. Foam extrusion of Polyethylene Terepht…