ISO 23508:2021
Solution-polymerized SBR — Evaluation methods of viscoelastic properties
This document specifies the standard test formulation, mixing procedure and test methods for evaluation of viscoelastic properties in a compound based on solution-polymerized styrene-butadiene rubber (S-SBR), including functionalized S-SBR.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test formulation
5 Procedure for sample preparation
5.1 General
5.2 First stage
5.3 Second stage
5.4 Third stage
6 Testing of the uncured mix
7 Evaluation of vulcanization characteristics
7.1 General
7.2 Evaluation according to oscillating disc curemeter test
7.3 Evaluation according to rotorless curemeter test
8 Evaluation of dynamic viscoelastic properties
8.1 General
8.2 Sample preparation
8.3 Test equipment and deformation mode
8.4 Evaluation of strain dependency
8.5 Evaluation of temperature dependency
8.6 Expression of test results
9 Precision
10 Test report
Annex A (informative) Evaluation of filler dispersibility
Annex B (informative) Data reliability
Annex C (informative) Examples of viscoelastic measurement
Annex D (informative) Payne effect
Annex E (informative) Precision
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test formulation
5 Procedure for sample preparation
5.1 General
5.2 First stage
5.3 Second stage
5.4 Third stage
6 Testing of the uncured mix
7 Evaluation of vulcanization characteristics
7.1 General
7.2 Evaluation according to oscillating disc curemeter test
7.3 Evaluation according to rotorless curemeter test
8 Evaluation of dynamic viscoelastic properties
8.1 General
8.2 Sample preparation
8.3 Test equipment and deformation mode
8.4 Evaluation of strain dependency
8.5 Evaluation of temperature dependency
8.6 Expression of test results
9 Precision
10 Test report
Annex A (informative) Evaluation of filler dispersibility
Annex B (informative) Data reliability
Annex C (informative) Examples of viscoelastic measurement
Annex D (informative) Payne effect
Annex E (informative) Precision
Bibliography