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Multiparameter mapping of polymer properties for fast thermolysis of powder moldings

Song, JH; Evans, JRG; Edirisinghe, MJ; Twizell, EH; (1998) Multiparameter mapping of polymer properties for fast thermolysis of powder moldings. J APPL POLYM SCI , 70 (3) 545 - 557.

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Abstract

Ceramic or metal injection molding involves the shaping of a crowded suspension of particles in a polymer that is later removed by thermolysis. During heating, degradation products dissolve in the parent polymer and diffuse to the free surfaces where evaporation occurs. if heated too rapidly in the initial stage, the solution at the center of the molding boils and a bubble forms. This article explores the implications of a multiparameter model that predicts the highest permissible heating rate in terms of polymer properties and maps the outcome. The aim is to develop criteria for the deliberate synthesis of thermally labile copolymers from a knowledge of the desirable property combinations. (C) 1998 John Wiley & Sons, Inc.

Type: Article
Title: Multiparameter mapping of polymer properties for fast thermolysis of powder moldings
Keywords: diffusion, thermal degradation, mathematical modeling, ceramic processing, ORGANIC VEHICLE, DIFFUSION-COEFFICIENTS, CERAMIC MOLDINGS, METAL MOLDINGS, DEGRADATION, REMOVAL, DEFECTS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: http://discovery.ucl.ac.uk/id/eprint/105881
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