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Title: Method and composition for molding low-density desiccant syntactic-foam articles

Abstract

These and other objects of the invention are achieved by a process for molding to size a desiccant syntactic foam article having a density of 0.2 to 0.9 g/cc and a moisture capacity of 1 to 12% by weight, comprising the steps of: charging a mold with a powdery mixture of an activated desiccant, microspheres and a thermosetting resin, the amount of the desiccant being sufficient to provide the required moisture capacity, and the amounts of the microspheres and resin being such that the microspheres/desiccant volume fraction exceeds the packing factor by an amount sufficient to substantially avoid shrinkage without causing excessively high molding pressures; covering the mold and heating the covered mold to a temperature and for an amount of time sufficient to melt the resin; and tightly closing the mold and heating the closed mold to a temperature and for an amount of time sufficient to cure the resin, and removing the resultant desiccant syntactic foam article from the mold. In a composition of matter aspect, the present invention provides desiccant syntactic foam articles, and a composition of matter for use in molding the same.

Publication Date:
OSTI Identifier:
5088296
Application Number:
ON: DE82020842
Assignee:
Dept. of Energy
DOE Contract Number:  
AC04-76DP00613
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; FOAMS; MOLDING; COLLOIDS; DISPERSIONS; FABRICATION; 360301* - Composite Materials- Preparation & Fabrication- (-1987)

Citation Formats

. Method and composition for molding low-density desiccant syntactic-foam articles. United States: N. p., 1981. Web.
. Method and composition for molding low-density desiccant syntactic-foam articles. United States.
. 1981. "Method and composition for molding low-density desiccant syntactic-foam articles". United States.
@article{osti_5088296,
title = {Method and composition for molding low-density desiccant syntactic-foam articles},
author = {},
abstractNote = {These and other objects of the invention are achieved by a process for molding to size a desiccant syntactic foam article having a density of 0.2 to 0.9 g/cc and a moisture capacity of 1 to 12% by weight, comprising the steps of: charging a mold with a powdery mixture of an activated desiccant, microspheres and a thermosetting resin, the amount of the desiccant being sufficient to provide the required moisture capacity, and the amounts of the microspheres and resin being such that the microspheres/desiccant volume fraction exceeds the packing factor by an amount sufficient to substantially avoid shrinkage without causing excessively high molding pressures; covering the mold and heating the covered mold to a temperature and for an amount of time sufficient to melt the resin; and tightly closing the mold and heating the closed mold to a temperature and for an amount of time sufficient to cure the resin, and removing the resultant desiccant syntactic foam article from the mold. In a composition of matter aspect, the present invention provides desiccant syntactic foam articles, and a composition of matter for use in molding the same.},
doi = {},
url = {https://www.osti.gov/biblio/5088296}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {12}
}