Dependence of Tg of NBR vulcanisates on plasticiser level and crosslink density.


Citation

Tinker A. J., . and Faridah Hanim A. H., . and Farid A. S., . Dependence of Tg of NBR vulcanisates on plasticiser level and crosslink density. pp. 131-141. ISSN 1511-1768

Abstract

This study reports the relationship between glass transition temperature (Tg) and tributoxyethylphosphate (TBEP) concentration in acrylonitrile-butadiene rubber (NBR) gum vulcanisates. A linear relationship with weight fraction of TBEP was observed for up to 37 weight percent TBEP and the change in Tg over this range was high. However the Fox-Hoy relationship between 1/Tg provided a better fit to the data. This observation provides a particularly reliable basis for estimating plasticiser levels through measurements of Tg. The Gordon-Taylor relationship did not provide a good basis for predicting the Tg of the plasticised rubber. A much lower dependence of Tg on crosslink density was also observed.


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Abstract

This study reports the relationship between glass transition temperature (Tg) and tributoxyethylphosphate (TBEP) concentration in acrylonitrile-butadiene rubber (NBR) gum vulcanisates. A linear relationship with weight fraction of TBEP was observed for up to 37 weight percent TBEP and the change in Tg over this range was high. However the Fox-Hoy relationship between 1/Tg provided a better fit to the data. This observation provides a particularly reliable basis for estimating plasticiser levels through measurements of Tg. The Gordon-Taylor relationship did not provide a good basis for predicting the Tg of the plasticised rubber. A much lower dependence of Tg on crosslink density was also observed.

Additional Metadata

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Item Type: Article
AGROVOC Term: Vulcanization
AGROVOC Term: Glass
AGROVOC Term: Density
AGROVOC Term: Rubber
AGROVOC Term: Polymers
AGROVOC Term: Viscoelasticity
AGROVOC Term: Cross-linking
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/23114

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