A simple dilatometer for thermoset cure shrinkage and thermal expansion measurements

A simple capillary and bulb mercury dilatometer designed for specific volume measurements on thermoset resin systems during the curing reaction and as a function of temperature is described. The design, calibration, operation, data treatment, and error analysis are presented in detail, with data on...

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Bibliographic Details
Published in:Journal of applied polymer science 1994-04, Vol.52 (3), p.401-411
Main Authors: Snow, Arthur W., Armistead, J. Paul
Format: Article
Language:English
Subjects:
Applied sciences
Chemical properties
Exact sciences and technology
Polymer industry, paints, wood
Properties and testing
Technology of polymers
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Description
Summary:A simple capillary and bulb mercury dilatometer designed for specific volume measurements on thermoset resin systems during the curing reaction and as a function of temperature is described. The design, calibration, operation, data treatment, and error analysis are presented in detail, with data on the bisphenol A dicyanate resin system used as an example. Particular attention is directed at experimental difficulties such as monomer/prepolymer degassing, filling the dilatometer under vacuum, adhesive distortion of the curing resin on the dilatometer bulb, and the dilatometer bulb to capillary connection problem. © 1994 John Wiley & Sons, Inc. This article is a US Government work and, as such, is in the public domain in the United States of America.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1994.070520305