Absorption of ester type plasticisers by natural rubber and epoxidised natural rubber-diffusion coefficients and equilibrium uptake


Citation

Md. Aris A., . and Tinker A. J., . and Aubrey D. W., . Absorption of ester type plasticisers by natural rubber and epoxidised natural rubber-diffusion coefficients and equilibrium uptake. pp. 1-2. ISSN 0127-7065

Abstract

The diffusion coefficients of ester plasticisers in natural rubber (NR) and epoxidised natural rubber (ENR) were determined by using the mass uptake method. Diffusion coefficients decrease with increasing viscosity of the plasticiser. They are greater for NR than for ENR in accord with previous observations that diffusion coefficients decrease with increasing glass transition temperature. Diffusion coefficients do not decrease continuously with increasing crosslink density rather maximum values are observed at about 5 10-2 mol/kg. Thermodynamic diffusion coefficients show the expected continuous decrease with increasing crosslink density.


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Abstract

The diffusion coefficients of ester plasticisers in natural rubber (NR) and epoxidised natural rubber (ENR) were determined by using the mass uptake method. Diffusion coefficients decrease with increasing viscosity of the plasticiser. They are greater for NR than for ENR in accord with previous observations that diffusion coefficients decrease with increasing glass transition temperature. Diffusion coefficients do not decrease continuously with increasing crosslink density rather maximum values are observed at about 5 10-2 mol/kg. Thermodynamic diffusion coefficients show the expected continuous decrease with increasing crosslink density.

Additional Metadata

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Item Type: Article
AGROVOC Term: Rubber industry
AGROVOC Term: Hevea
AGROVOC Term: Absorption
AGROVOC Term: Esters
AGROVOC Term: Natural rubber
AGROVOC Term: Diffusion
AGROVOC Term: Viscosity
AGROVOC Term: Temperature
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/23398

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