Chemical Exposure Testing of Rubber
Exposure of rubber materials or components to a chemical environment
may result in physical (swelling) and chemical changes. These
changes can in turn affect the mechanical properties and the
functional performance
of a component.
Fluid compatibility can be assessed by measurement of:
- Permeation, diffusion and solubility of gases and liquids solubility
parameter
- Compatibility between rubber and fluid
Chemical ageing can be assessed by monitoring property
changes during exposure.
- Ageing in an inert atmosphere e.g. Nitrogen (continuation of cure chemistry)
- Air ageing (oxidative effects)
- Hostile fluids (hydrogen sulphide, amines, amides, methanol, de-icing fluids, anti-freeze, oils, additives etc)
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