Environmental stress cracking of PVC and PVC-CPE
Copyright policy )Environmental stress cracking of PVC and PVC-CPE
The failure of unnotched PVC and PVC-CPE was studied in a number of vapour and liquid environments. The failure mechanisms observed are related to craze initiation and logarithmic craze growth. A model to explain the origin of the logarithmic craze growth is presented. The failure mechanism in air and in benzene and toluene vapours is ductile, whereas it is brittle in n-hexane, n-decane and ethanol vapours, n-octane/benzene mixtures and natural gas condensate. Equations to describe the time to failure for both failure mechanisms are derived. The ductile failure is ascribed to plasticization and/or plastic deformation around the craze. Brittle failure is thought to arise from crazes which reach a critical size. © 1994 Chapman & Hall.
- Delft University of Technology Netherlands
Mathematical models, Ethanol, Plasticity, Crack propagation, Benzene, Ductile failure, Deformation, Gas condensates, Failure (mechanical), Logarithmic craze growth, Brittle failure, Environmental stress cracking, Chlorinated polyethylene polyvinyl chlorides, Polyvinyl chlorides, Crazing, Ductility, Environmental testing, Toluene
Mathematical models, Ethanol, Plasticity, Crack propagation, Benzene, Ductile failure, Deformation, Gas condensates, Failure (mechanical), Logarithmic craze growth, Brittle failure, Environmental stress cracking, Chlorinated polyethylene polyvinyl chlorides, Polyvinyl chlorides, Crazing, Ductility, Environmental testing, Toluene
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