Journal article

Compression moulding of glass and polypropylene composites for optimised macro- and micro- mechanical properties II. glass-mat-reinforced thermoplastics

Processing of glass-mat thermoplastics (GMTs) by hot-Pow compression moulding represents a complex physical process with non-isothermal and non-Newtonian conditions. To increase the understanding of process and property interactions, a series of statistically designed experiments have been conducted on Pat plaques. Processing variables were ranked in order of importance for increased laminate properties. Processing models were generated using regression techniques describing the e€ect of processing variables on void content measured from the microstructure and laminate mechanical properties. Time at pressure had the greatest e€ect on strength and moduli.


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