Abstract
Abstract Failure processes for two linear medium density polyethylene resins commonly used for producing piping for natural gas distribution systems have been compared in the absence and presence of environmental stress cracking (ESC) agents. A clear decrease in cohesion of the crazed, drawn material is seen in the presence of the ESC agents for both compact tension pieces and notched tensile bars. Creep experiments suggest the ESC agents only have an effect on polyethylene that has undergone micro-necking.
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Schedule a callMore From: International Journal of Polymeric Materials and Polymeric Biomaterials
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