Viscoelastic properties of thermosetting resin during curing under variable temperatures

摘要

Viscoelastic properties during curing were measured experimentally by a rheometer of rotating double cylinders. The viscoelastic constitutive relations during curing were formulated by a spring-dashpot model of three elements. The viscoelastic parameters during curing under variable temperatures were estimated by the viscoelastic parameters determined under various constant temperatures. The estimated parameters fitted approximately to the experimentally determined parameters under variable temperatures.