ABSTRACT
Scientific and technical principles for obtaining a wide range of required materials have been well developed by processing thermoplastics through a viscous, high elastic and vitreous state using basic techniques such as extrusion; casting; calendering; bulk and sheet stamping; pneumatic and vacuum forming; and rolling. Each specific technological procedure is characterized by a specific feature of the chemical, physical and physico-chemical transformations that accompany processing and determine the formation of a complex of final properties of the material. However, in all cases, processing includes effect on the polymer temperature and mechanical load, or, in other words, thermal and force fields; and the course of relaxation processes, the completeness of which has a significant effect on the subsequent behaviour of the resulting material or article. The chapter considers the features of both the factors using the example of monolithization of powders of thermoplastic polymers under their compression moulding that is compression in the press mould.
