高分子材料の塑性変形に伴う表面あれ

概要

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The surface rougkening during tensile and compressive plastic deformations of polymers was investigated with a stylus instrument.The surfce roughness of nylon, grey polyvinyl chloride and polyethylene increased with increasing applied strain.The surface roughness of polypropylene and transpsrent polyvinyl chloride imncreased in the eary stage of tensile deformation.and it remained almost constant in the later stage.Surface roughening was hardly observed for polycarbonate.To investigate the mechanism of surface roughening ,the deformed surface was observed by suamming electron microscope.It was found that the development of fibrous structure,the break of fibrous structure,the break of the fibrous structure near the surface and the formation of craze contributed to the surface roughening.
社団法人日本材料学会の論文
1990-07-15