Fiber length, thermal, mechanical, and dynamic mechanical properties of injection-molded glass-fiber/polyamide 6,6: plasticization effect
(488-498) Journal of Reinforced Plastics and Composites 30 #6 (2011)
Abstract
Hassan et al of the University of Malaya, Malaysia, showed that more fiber degradation occurred during processing of the composites with higher fiber loading.  With moisture uptake, there were no significance changes in the melting temperature, crystallization temperature, and enthalpy of crystalline; however, degree of crystallinity and enthalpy of melting decreased. Tensile strength, tensile modulus, flexural strength, and flexural modulus decreased with moisture uptake, while tensile strain and flexural displacement increased. DMA study showed that tan delta at room temperature and tan delta maxima increased with moisture absorption, while temperatures at maximum tan delta in α- and β-transition regions decreased.  (RDC 5/25/2011)  (See Injection Molding Composites )