Predicting Creep of RIM and RRIM Materials

The objective of this paper is to present methods for characterizing creep behavior of plastics, in particular, RIM and RRIM materials, using short term testing. The two modes of creep testing discussed are flexural and compressive creep. The techniques were developed based on work with RIM and RRIM materials and provide a quick, accurate way to compare creep behavior and modulus decay for low and high modulus plastics.