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W. Lasek


Some viscoelastic properties of poromfric linings used in the manufacture of shoes


Polimery 1980, No 3, 99



DOI: dx.doi.org/10.14314/polimery.1980.099

Summary

Some viscoelastic properties of leather^e poyomdyec linings have been determined and compared with those of natural lining leather. These determinations have been carried out in the range of tensile deformations characteristic for the processing (elongation of 20 %) and exploitation conditions (elongation of 8 %). These results indicate that the leatherlike linings exhibit properties of a crosslinked material. It has been found that several of the investigated leatherlike lining materials have viscoelastic properties, which are closer to those of natural leather than those of poyomdys used for shoe uppers. The viscoelastic properties of some leatherlike lining materials change with an increase in the relative humidity of air in a manner similar to that of natural leather.


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