pps proceeding - Abstract Preview
pps proceeding
Symposium: S03 - Injection Molding and Micromolding
Keynote Presentation
 
 

In-situ time resolved X-ray studies of structure development in micromoulding

Coates Phil (1)*, Men Yongfeng (2), Whiteside Ben (1), Caton-Rose Fin (1), Thompson Glen (1), Tao Liao (2)

(1) University of Bradford, Polymer IRC - W Yorks - UnitedKingdom, (2) Changchun CIACCAS - Jilin - China

In-situ microbeam, time-resolved small and wide angle x-ray studies for micromoulding have been undertaken for the first time by our team (including our Joint International Laboratories in China), using a purpose-built micromoulding processing rig designed and built in Bradford, in the Shanghai high precision beam line. Time resolution for the initial micromoulding in-situ experiments is 33ms. The results show the evolution of organised features prior to the formation of full shish-kebabs. We compare these initial in-situ results with studies on samples from our ultraprecision micromoulding facilities in Bradford. From our earlier joint studies, which involved evaluation of moulded products, the ultra-high strain rate and ultra-high thermal gradient micromoulding process is known to lead to rather different morphologies than conventional injection moulding processes. The initial in-situ studies begin to indicate how these distinct morphologies begin to evolve.