Processing technology of pvc calendered film

Release time:

Aug 18,2023

For different films or different products, different processing techniques can be used. Under certain conditions of the type, nature and various additives of the film, the influence of the processing technology on the performance of the film is very significant. The processing technology of PVC calendered film is as follows: (1) Injection molding: For thermoplastic films, the film particles are heated and melted in an injection molding machine and injected into the mold at a higher pressure and speed. (2) Extrusion molding: The heated and melted film is extruded into profiles of different shapes through different hole dies through the extrusion action of the extruder.

(1) Injection molding: For thermoplastic films, the film particles are heated and melted in an injection molding machine and injected into the mold at a higher pressure and speed.

(2) Extrusion molding: The heated and melted film is extruded into profiles of different shapes through different hole dies through the extrusion action of the extruder.

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(3) Spraying process: spraying plastic film layer on metal, non-metal plate surface and fiber net tire;

(4) compression molding: for thermosetting film, the plastic powder, sheet, granular raw materials into the mold heating softening pressure molding, so that chemical crosslinking and curing:

(5) Lamination molding: After the layered reinforcement substance is dipped with thermosetting resin, it is processed to make a rotten stack plate, and then it is pressurized and heated by a laminator to cure it.

(6) casting molding: the liquid film is poured into the mold, so that it is solidified and cooled under normal pressure or low pressure:

(7) foam molding: mechanical or chemical methods can be used to introduce a large number of tiny spherical bubbles in the plastic to make a small volume density, good thermal insulation performance, good sound absorption performance of foam film.

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The physical and mechanical properties of PVC calendered film are mainly as follows:

(1) specific strength. Membrane products than other materials than the strength, and thus in the building decoration and daily, aerospace and other projects, become the material.

(2) Isolation. The conduction capacity of membrane products is smaller than that of metal or rock, that is, the ability of heat conduction, electrical conduction and wave conduction is small, so its thermal conductivity is small, electrical insulation, vibration reduction and sound absorption is good:

(3) Availability. The decorative usability of membrane products is good: plastic products are colorful and rich in color, smooth and glossy in surface, clear in pattern, straight and curved strips are square and regular, and curved strips are soft and beautiful; secondly, plastic products can be sawed, nailed, drilled, planed, welded and glued, decoration installation and construction are fast and convenient, thermoplastic plastics can also be bent and reshaped, and decoration construction quality is easy to ensure. In addition, plastic products are resistant to acid, alkali, salt and water erosion, good chemical stability, and beautiful and durable. Non-foaming products are easy to clean and paint.

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