Abrasion Resistance of Thermoplastic Polyurethane in Abrasion Resistance Test Using Abrasives

Abstract

Abrasion resistance values of thermoplastic polyurethane were investigated. The method of testing employed abrasives. Two samples of polyurethane, prepared from polycaprolactone, 1, 4-butanediol and 4, 4′-diphenylmethane diisocyanate, were tested. The sample that had lower hardness and lower dynamic modulus showed higher abrasion resistance than the other. When the temperature was raised, the abrasion resistance value was improved. Samples compressed by a steel ball showed different compression marks. The results showed that the lower dynamic modulus sample had larger contact area with abrasive and that the abrasive containing layer had improved the abrasion resistance.