Method for preparing artificial stone by use of unsaturated polyester paint waste

A technology of artificial stone and polyester paint, applied in the field of building materials, can solve the problems of difficult reprocessing, difficult degradation, secondary pollution, etc., and achieve the effect of large price advantage, hard texture, and convenient construction and installation

Inactive Publication Date: 2015-09-30
JIANGSU RUIKANG NEW MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the paint spraying process of furniture, automobiles and other fields, most of the spraying operations are carried out with air spray guns. Due to the problem of spraying efficiency, nearly 40% of the paint in the sprayed paint has not been successfully cured on the surface of the sprayed parts and has become paint waste. These paints Waste residues are thermosetting polymers, which are difficult to degrade and reprocess
[0004] At present, the above-mentioned paint waste can only be disposed of by incineration or landfill. Usually, the cost of incineration or landfill is relatively high. In the developed areas in eastern China, the treatment cost of the above-mentioned paint waste is as high as 2000-3000 yuan / ton, not only Become a burden on society, there is a risk of secondary pollution, but also cause a lot of waste of resources

Method used

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  • Method for preparing artificial stone by use of unsaturated polyester paint waste
  • Method for preparing artificial stone by use of unsaturated polyester paint waste
  • Method for preparing artificial stone by use of unsaturated polyester paint waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The preparation method of unsaturated polyester paint waste powder is as follows:

[0054] The massive or stalactite-like solid unsaturated polyester paint waste is coarsely pulverized with a pulverizer to obtain a coarse powder, and then the coarse powder is finely ground with a trapezoidal mill, and the unsaturated polyester paint waste is ground to 400 mesh ( Taylor made) narrow distribution powder, then use a high-speed mixer to stir and heat up to 100°C, and keep at this temperature for 35min to remove the volatile substances in the unsaturated polyester paint waste.

[0055] After removing the volatile matter, add 1% coupling agent γ-(2,3-epoxypropoxy)propyltrimethoxysilane to activate for 8min (that is, the mass ratio of coupling agent to unsaturated polyester paint waste is 1 :100), after activation, add 1% catalyst 1,5,7-triazabicyclo[4.4.0]dec-5-ene (that is, the mass ratio of catalyst to unsaturated polyester paint waste is 1:100) , stirring at a high speed ...

Embodiment 2

[0057] In the No. 1 mixing tank, add the following raw materials in turn under stirring conditions. After stirring for 35 minutes, add 15kg of unsaturated polyester resin to stir and disperse. After stirring evenly, half of the obtained mixture is used as the surface layer mixture and half as the bottom layer Mixture.

[0058]

[0059]

[0060] In the No. 2 mixing tank, add the following raw materials sequentially under stirring conditions. After stirring for 35 minutes, add 5 kg of unsaturated polyester resin and stir evenly, then add 4 kg of reinforcing fibers and stir evenly to obtain the artificial stone toughening layer mixture.

[0061]

[0062] Spread the mixture of artificial stone bottom layer on the formwork to complete the pouring of the artificial stone surface layer; after filling and vibrating and compacting, spread 24.5kg of artificial stone toughening layer mixture on the bottom layer of artificial stone in the formwork to complete the artificial stone ...

Embodiment 3

[0066] The difference between this embodiment and embodiment 2 is that the amount of unsaturated polyester paint waste modified powder is 30 kg, and the amount of quartz sand is 27 kg. The test performance of the artificial stone prepared in this embodiment is shown in Table 2.

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Abstract

The invention discloses a method for preparing artificial stone by use of unsaturated polyester paint waste. The method comprises the following steps: uniformly mixing raw materials of the bottom layer, the toughening layer and the surface layer of artificial stone; sequentially pouring, shaping and curing to obtain artificial stone. The bottom layer and the surface layer of the artificial stone comprise the following raw materials in parts by weight: 20-75 parts of unsaturated polyester paint waste powder, 0-35 parts of a flame retardant, 10-20 parts of quartz sand, 10-25 parts of unsaturated polyester resin, 0-3 parts of a curing agent, 0-2 parts of a hindered amine additive, 0-2 parts of a promoter, 0-1 part of a coupling agent A and 0-2 parts of a catalyst A. The artificial stone is wide in application, can serve as indoor artificial stone decorative patterns, kitchen countertops, artificial stone window sills, artificial stone external wall decorative boards and the like, has the advantages of small density, hard texture, good flame retardancy, excellent aging resistance and the like, particularly, has the weight of 1/2-1/3 of that of ordinary artificial stone under the condition of the same strength, and is convenient to construct and mount.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for making artificial stone by using unsaturated polyester paint waste. Background technique [0002] As a new type of artificial building material, artificial stone has the advantages of high strength, high hardness, high toughness, anti-corrosion and anti-aging, no radiation, easy processing, and natural texture. It is more and more widely used in the field of construction and decoration. Today, when non-renewable resources such as natural stone are continuously being exploited destructively, it is an inevitable trend in the world's stone decoration market to replace natural stone with artificial stone. [0003] In the paint spraying process of furniture, automobiles and other fields, most of the spraying operations are carried out with air spray guns. Due to the problem of spraying efficiency, nearly 40% of the paint in the sprayed paint has not been succes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/32C04B18/20
CPCY02W30/91
Inventor 江永波
Owner JIANGSU RUIKANG NEW MATERIAL TECH CO LTD
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