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Mechanism of low profile behavior in unsaturated polyester systems
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References
1974
Year
Materials SciencePolymer MaterialEngineeringLow Profile BehaviorLow Profile CharacterPolymer ScienceMechanical EngineeringPolymer EngineeringPolymer PropertyMechanics Of MaterialsPlasticitySoft MatterPolymerization ShrinkageMicro Stress CrackingPolymer Chemistry
Abstract The mechanism by which low profile character is achieved in unsaturated polyester systems has been investigated. Using techniques of microscopy, data are developed that support a model in which micro stress cracking is induced to relieve stress promoted by polymerization shrinkage. Thus the strain is accommodated internally in a molded part, rather than through macroscopic shrinkage of the article.