Microcellular foams; For what

Journal Article · Mon Apr 01 04:00:00 EST 1991 · CHEMTECH; (United States)

OSTI ID:7176583

Aubert, J H; Sylwester, A P ^[1]

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1. Sandia National Labs., Albuquerque, NM (United States)

This paper discusses the cells of microcellular foams which are thousands of times smaller than those found in conventional foams. They can be used for a whole range of applications, from porous electrodes and high-temperature insulation to electrically conductive composites, and as porous media for studying comet dust. First, the authors will show you how to make them so you can envision their unique characteristics. Then they will show some uses already developed. By far the most versatile preparation technique involves thermally induced phase separation (TIPS) of polymer solutions. In this technique a polymer solution is quenched in order to induce phase separation, either through liquid-liquid phase separation or polymer crystallization. If the TIPS process results in the formation of a continuous polymer-rich phase, two additional processing steps can lead to a microcellular foam.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7176583
• Journal Information: CHEMTECH; (United States), Journal Name: CHEMTECH; (United States) Vol. 21:4; ISSN CHTED; ISSN 0009-2703
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
400201* -- Chemical & Physicochemical Properties
CHEMICAL PREPARATION
COLLOIDS
CRYSTALLIZATION
DENSITY
DISPERSIONS
ELECTRODES
FOAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POLYMERS
SEPARATION PROCESSES
SOLUBILITY
SYNTHESIS