Citation
Lake G. J., . and Mente P. G., . Ozone cracking and protection of elastomers at high and low temperatures. pp. 1-13. ISSN 0127-7065
Abstract
Ozone attack on elastomers varying in their glass transition temperatures (qG) by some 50 C was studied over a range of temperatures from about -20C to 70C. If the ambient temperature is low the rate of crack growth due to ozone may be reduced by the high internal viscosity of the material. However diffusion of chemical antiozonants or waxes which confer protection by forming a layer on the elastomer surface is also slowed down. It appears more difficult to obtain good protection at low temperatures. High ambient temperatures do not greatly increase the rate of ozone crack growth and might be expected to improve antiozonant and wax protection for elastomers of high qG as a result of increased rates of diffusion. This was observed to some extent.
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Abstract
Ozone attack on elastomers varying in their glass transition temperatures (qG) by some 50 C was studied over a range of temperatures from about -20C to 70C. If the ambient temperature is low the rate of crack growth due to ozone may be reduced by the high internal viscosity of the material. However diffusion of chemical antiozonants or waxes which confer protection by forming a layer on the elastomer surface is also slowed down. It appears more difficult to obtain good protection at low temperatures. High ambient temperatures do not greatly increase the rate of ozone crack growth and might be expected to improve antiozonant and wax protection for elastomers of high qG as a result of increased rates of diffusion. This was observed to some extent.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Elastomers |
| AGROVOC Term: | Natural rubber |
| AGROVOC Term: | High temperature |
| AGROVOC Term: | Low temperature |
| AGROVOC Term: | Chemical agents |
| AGROVOC Term: | Waxes |
| AGROVOC Term: | Ozone |
| AGROVOC Term: | Ozone layer |
| AGROVOC Term: | Experiments |
| AGROVOC Term: | Viscosity |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 06:28 |
| URI: | http://webagris.upm.edu.my/id/eprint/23447 |
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