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Oct 25, 2011 · how fillers impact extrusion processing. ... this is particularly important in multiple-exit die systems or where the flow is spread out, such as in large sheet or film dies, ... requiring changes in tooling, cooling rate, and line speed when changing from neat polymer.
In extrusion of a thermoplastic, heating first softens the material so that it can be shaped. the extrusion machine, or extruder does this process. this heat softening is called by various names, such as ‘plastication’, ‘plasticization’ or ‘thermal softening’. most extruders are
The talc powder is basically fibrous or flake-shaped, and the fiber has good weather resistance, but the fluidity in the coating is poor, and the flatness of the coating film is also insufficient; the flaky talc powder can improve the leveling property of the coating, the flatness of the coating film and the gloss retention.
Talc powder – type #399. it is low in iron and carbonates. the incorporation of talc into ceramic compositions enables the use of lower firing temperatures and quicker firing schedules in the production of ceramic articles such as, floor and wall tiles, plumbing fixtures, catalytic converter substrates, and vitreous china, etc.

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