Internal plastification

In both cases, an internal plastification is achieved with no danger of migration of the plasticizer. Saran is much used in clothing and textiles, food packaging and paints as well as in rigid structures. The copolymer with vinyl acetate is mostly used for records. 

In most of these routes, premixing is carried out in a trough mixer at room temperature to give a damp powdery mass or mush . This may then be fluxed on a two-roll mill, in an internal mixer, or in a continuous compounder such as the Werner and Pfleiderer Plastificator. For many operations the compounded mass... 

A broad area of application of plasticizing action of the medium is the use of surface active substances in the treatment of metals by pressure (dragging, rolling, impact extrusion). Plastification of surface layers of the treated metal due to the surface active components incorporated into greases and lubricants significantly reduces loads that one needs to apply in order to carry out these processes. It also improves the quality of the surface and decreases the level of internal stresses in the near-surface layers of a metal... 

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