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PVC (Polyvinyl Chloride) sheet coated with ASA (Acrylonitile Styrene Acrylate) film and film coating method

A sheet and film-coating technology, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of uneven distribution of film covering, low energy consumption, and low service life, so as to achieve environmental protection and improve service life , cost reduction effect

Inactive Publication Date: 2017-12-08
SHENZHEN YICAIHONGXIANG NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide an ASA coating method for PVC sheets with low energy consumption and stable quality control, aiming to solve the problem of uneven distribution and low efficiency of the coating in the existing molding process , low life and other technical problems

Method used

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  • PVC (Polyvinyl Chloride) sheet coated with ASA (Acrylonitile Styrene Acrylate) film and film coating method
  • PVC (Polyvinyl Chloride) sheet coated with ASA (Acrylonitile Styrene Acrylate) film and film coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A weather-resistant ASA coating method for PVC plastic tiles, comprising the steps of:

[0035] S11: Obtain a weather-resistant ASA film.

[0036] The process is: the ASA raw material is extruded through an extruder, cast, and double-rolled to shape it, with a thickness of 3mm.

[0037] S12: Fix the weather-resistant ASA film on the film-coating frame device, and hot-press and bond the weather-resistant ASA film to the surface of the PVC plastic tile extruded from the extrusion die through the double-rolling technology to obtain a covered Preform of PVC sheet of weather resistant ASA film.

[0038] The PVC plastic tile sheet has just been extruded from the extruder 80-type conical twin-screw machine, and the sheet temperature is 250°C.

[0039] S13: Pull the above-mentioned preform of the PVC plastic tile material covered with the weather-resistant ASA film to a setting machine, and mold it into shape. The process utilizes double rollers to pull PVC plastic tiles coate...

Embodiment 2

[0041] A weather-resistant ASA coating method for PVC plastic tiles, comprising the steps of:

[0042] S21: Obtain a weather-resistant ASA film.

[0043] The process is: the ASA raw material is extruded through an extruder, cast, and double-rolled to shape it, with a thickness of 1mm.

[0044] S22: The weather-resistant ASA film is fixed on the film-coated frame device, and the weather-resistant ASA film is hot-pressed and bonded to the surface of the PVC plastic tile extruded from the extrusion die through the double-rolling coating technology, and the coated plastic tile is obtained. Preform of PVC sheet of weather resistant ASA film.

[0045] The PVC plastic tile sheet has just been extruded from a 65-type flat twin-screw extruder, and the sheet temperature is 200°C.

[0046] S23: pulling the preform of the above-mentioned PVC plastic tile material covered with the weather-resistant ASA film to a setting machine, and molding it. The process utilizes double rollers to pul...

Embodiment 3

[0048] A weather-resistant ASA coating method for PVC plastic tiles, comprising the steps of:

[0049] S31: Obtain a weather-resistant ASA film.

[0050] The process is: the ASA raw material is extruded through an extruder, cast, and double-rolled to shape it, with a thickness of 0.05mm.

[0051] S32: The weather-resistant ASA film is fixed on the film-coating frame device, and the weather-resistant ASA film is hot-pressed and bonded to the surface of the PVC plastic tile extruded from the extrusion die through the double-rolling coating technology, and the coated plastic tile is obtained. Preform of PVC sheet of weather resistant ASA film.

[0052] The PVC plastic tile sheet has just been extruded from a 65-type flat twin-screw extruder, and the sheet temperature is 100°C.

[0053] S33: pulling the preform of the above-mentioned PVC plastic tile material covered with the weather-resistant ASA film to a setting machine, and molding it. The process utilizes double rollers to...

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Abstract

The invention belongs to the technical field of plastic processing and forming, and particularly relates to a PVC (Polyvinyl Chloride) sheet coated with an ASA (Acrylonitile Styrene Acrylate) film and a film coating method. The method comprises the following steps: acquiring the ASA film; fixing the ASA film on a film coating rack device, using the double-roller pressing and coating technique to thermally press and adhere the ASA film to the surface of the PVC sheet extruded from an extruding die head, and obtaining a prefabricated product of the PVC sheet coated with the ASA film, wherein the temperature of the PVC sheet is 100-250 DEG C; and dragging the prefabricated product of the PVC sheet coated with the ASA film to a forming machine, and conducting compression molding. The ASA film is firmly adhered to the PVC sheet through the temperature of the just extruded PVC sheet, the double-roller embossing and the subsequent compression molding pressure, so that the consistency and the evenness of the thickness of the ASA film are guaranteed effectively, the service life of the product is prolonged, and moreover, the time is saved, the production efficiency is improved, and the purposes of saving energies and reducing consumption are fulfilled.

Description

technical field [0001] The invention belongs to the technical field of plastic processing and molding, and in particular relates to a PVC sheet covered with an ASA film and a film covering method thereof. Background technique [0002] PVC sheet is mainly composed of PVC resin. The processing method of PVC sheet is mainly extrusion molding. PVC sheet has good tensile properties and ductility, but it is easy to deform when heated, has poor UV resistance, and is easy to age outdoors. ASA is a ternary polymer composed of acrylonitrile (Acrylonitrile), styrene (Styrene) and acrylic rubber (Acrylate). It has excellent weather resistance, so it is the first choice for outdoor building materials. [0003] Co-extrusion molding is a major processing technology for composite material products. It uses two or more extruders to bond several polymer materials with different characteristics together and shape them in one machine head to obtain Composite products. At present, the co-ex...

Claims

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Application Information

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IPC IPC(8): B32B37/02B32B37/06B32B27/08B32B27/30B29C47/00B29C48/07
CPCB32B27/08B32B27/304B32B27/308B32B37/10B32B37/1284B32B27/302B32B37/02B32B37/06B29C48/07
Inventor 安小革安俸伶
Owner SHENZHEN YICAIHONGXIANG NEW MATERIALS TECH CO LTD
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