Actions for Continuous Measurement of Rubber Vulcanization with the Agfa Vulcameter

Email RIS file
Bookmark
Report an Issue

Continuous Measurement of Rubber Vulcanization with the Agfa Vulcameter / S. D. Gehman, S. R. Ogilby

Conference Author
Continuous Measurement of the Cure Rate of Rubber (1964 : Chicago, Ill.)
Physical Description
1 online resource (16 pages) : illustrations, figures, tables
Additional Creators
Gehman, S. D., Ogilby, S. R., American Society for Testing and Materials, and ASTM International
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
License restrictions may limit access.
Subscription required for access to full text.
Summary
The Agfa Vulcameter was the forerunner and inspiration for more elaborate types of instrumentation now used to follow the course of vulcanization of laboratory test specimens. Procedures are described which enable the Vulcameter to fulfill most of the purposes of such instruments. The temperature control system has been modified so that the temperature rise in the specimen corresponds rather closely to that of a standard test sheet in a mold. The most serious objection to the Vulcameter has been the absence of pressure on the specimens allowing porosity to develop. This difficulty has been mitigated by using thinner specimens, about 0.04-in. thick, and practically eliminated by containing the specimen in a specially designed, low-pressure cell. Suitable calibration curves permit the conversion of the recorded traces to plots of shear modulus. The capabilities of the instrument for determining pertinent vulcanization and processing parameters are illustrated. Activation energies were determined for the vulcanization of a variety of rubber compounds. Vulcameter measurements of the shear modulus of uncured compounds and of scorch times correlated rather well with values from the Mooney viscometer.
Dates of Publication and/or Sequential Designation
Volume 1965, Issue 383 (January 1965)
Subject(s)
ISBN
0803166168
9780803166165
9780803169654 (e-ISBN)
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 12.
Other Forms
Also available in PDF edition.
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1965. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
View MARC record | catkey: 27986575