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Preparation method of surface die pressing film of PVC-based stone-plastic composite board

A composite board and cornerstone technology, applied in solid waste management, climate sustainability, reflective/signal coatings, etc., can solve the problems of long production lines, complex procedures, and high equipment requirements, and achieve low equipment investment and simple technical processes. Effect

Active Publication Date: 2019-02-05
SHAANXI SCI TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the market, stone-plastic composite panels are mainly PVC-based stone-plastic composite panels. Surface printing and surface film technology are mostly used to produce home improvement floors. High equipment requirements, large equipment investment, high production costs, and the products produced are concentrated in the flooring field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The method for preparing the surface of the PVC base stone-plastic composite board by molding and coating film of the present invention includes the following steps:

[0029] 1) Surface activation treatment of PVC foundation stone-plastic composite board:

[0030] 1a) Preparation of activated putty: The present invention uses waste plastic powder as a raw material of one or more of waste organic glass, polystyrene, styrene-acrylonitrile copolymer and ethylene-vinyl acetate copolymer. one. Dissolve waste plastic powder and methyl methacrylate in a mass ratio of (0.2-0.5):1 to form a homogeneous solution A, with a total mass of W, and add (0.4-0.6)W of hydroxide to the solution A Magnesium, (0.02-0.05) W titanium dioxide, (0.01-0.05) W acrylic acid, (0.0012-0.0024) W benzoyl peroxide, (0.0008-0.0016) W organic tertiary amine compounds and (0.02- 0.04) W of oxidized polyethylene wax powder, stirred in an ice water bath to form a high-viscosity putty, then placed at 40-50°C fo...

Embodiment 1

[0042] 1) Surface activation treatment of PVC foundation stone-plastic composite board:

[0043] Activated putty preparation: dissolve waste plastic powder organic glass and methyl methacrylate in a ratio of 0.2:1 by mass to form a homogeneous solution A, the total mass is W, and add 0.6W magnesium hydroxide, 0.02W titanium dioxide, 0.01W acrylic acid, 0.0012W benzoyl peroxide, 0.0008W N,N-dimethylaniline and 0.04W oxidized polyethylene wax powder, stir in an ice water bath to form a high viscosity putty , Then activate at 50℃, pre-polymerize for 10 minutes, and place it in the refrigerator for later use after cooling;

[0044] Coarse surface of the substrate: rough grinding and dust removal on the surface of the PVC base stone-plastic composite board with 180 grit sandpaper;

[0045] Activated putty application: apply a wet layer of active putty less than 300μm on the surface of the PVC-based stone-plastic composite board by scraping;

[0046] Substrate surface fine hair: The obtain...

Embodiment 2

[0052] 1) Surface activation treatment of PVC foundation stone-plastic composite board:

[0053] Activated putty preparation: dissolve waste plastic powder polystyrene, styrene-acrylonitrile copolymer and methyl methacrylate in a mass ratio of 0.5:1 to form a homogeneous solution A, the total mass is W, and add it to solution A Add 0.4W magnesium hydroxide, 0.03W titanium dioxide, 0.05W acrylic acid, 0.0024W benzoyl peroxide, 0.0010W N,N-dihydroxyethyl p-toluidine and 0.02W oxidized polyethylene wax Stir the powder in an ice-water bath to form a high-viscosity putty, then activate it at 40°C, pre-polymerize for 20 minutes, and place it in the refrigerator for use after cooling;

[0054] Coarse surface of the substrate: rough grinding and dust removal on the surface of the PVC-based stone-plastic composite board with 300 grit sandpaper;

[0055] Activated putty application: apply a wet layer of active putty less than 300μm on the surface of the PVC-based stone-plastic composite board...

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Abstract

The invention discloses a preparation method of a surface die pressing film of a PVC-based stone-plastic composite board. The preparation method comprises the steps that the surface of the PVC-based stone-plastic composite board is subjected to activating treatment, specifically, activated putty is prepared, the surface of the base material is crudely roughened, the activated putty is applied, curing is carried out, and the surface of the base material is finely roughened; PMMA slurry is prepared; and film coating and forming is carried out on the surface of the PVC-based stone-plastic composite board, specifically, the board is put in a die, cold-pressing shaping, tightening by a clamp, low-temperature curing, high-temperature treatment and cooling die-release are carried out, and thus the PVC-based stone-plastic composite board with the surface coated with the PMMA film is obtained. According to the PVC-based stone-plastic composite board with the surface coated with the PMMA film, which is prepared by the preparation method provided by the invention, the problems that in a traditional situation of producing floors with surface printing and surface film-sticking technologies, theinvestment of related production lines and equipment is large, and the production cost is high can be avoided; the board provided by the invention can partially replace composite floors, stone materials, acrylic face plates, curtain wall plates and the like, which are popular in the market currently; and a new path is provided for high value-added utilization of waste.

Description

Technical field [0001] The invention relates to a composite material surface treatment technology, in particular to a method for preparing a PVC-based stone-plastic composite board surface moulded coating film, belonging to the field of stone-plastic composite materials. Background technique [0002] In the market, stone-plastic composite panels are mainly PVC-based stone-plastic composite panels. Surface printing and surface filming techniques are often used to produce home improvement floors. The film layer does not allow polishing and is easy to fall off. The involved production lines have long processes and complex procedures. The equipment requirements are high, the equipment investment is large, the production cost is high, and the products produced are concentrated in the floor area. Summary of the invention [0003] In order to solve the above-mentioned defects in the prior art, the purpose of the present invention is to provide a PVC-based stone-plastic composite board wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D5/34C09D7/20C09D133/12C08L27/06
CPCC08J7/042C09D5/34C08J2433/12C08J2327/06C08K2003/2224C08K2003/2241C04B2111/00612C04B2111/54C04B2111/00534C04B26/06Y02W30/91C08J2400/30C08F265/06C04B14/305C04B18/20C04B22/0053C04B22/066C04B24/08C04B40/0078C08F220/14C08J7/0427C08J7/16C08J2333/12C09D5/004C09D133/12
Inventor 梅晶张堃袁新强曾晨艾桃桃董金虎麻龑卓
Owner SHAANXI SCI TECH UNIV
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