Pulverized coal ash foamed sheet

A foamed board and fly ash technology, applied in the field of new composite boards, can solve the problems of no natural wood grain texture, heavy board weight, poor woody feeling, etc., and achieve the effect of light weight, good processing performance and good woody feeling

Inactive Publication Date: 2013-03-27
崔海明
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although the boards made of calcium-wood-plastic or stone-plastic materials that appear on the market can be mois

Method used

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Embodiment Construction

[0009] A kind of fly ash foam board provided by the invention is made up of the following raw materials: 48 kg of polyvinyl chloride resin, 35 kg of fly ash, 13 kg of wollastonite, 2 kg of stabilizer, and 2.5 kg of foam regulator , Foaming agent 1 kg, calcium stearate 3 kg, stearic acid 3 kg, PE wax 1 kg, sodium bicarbonate 1.5 kg. Dry the above raw materials with a shear mixer at 120-150° C. for 1.5 hours. Then put the uniformly mixed material into a high-temperature extrusion granulator for granulation, with a particle size of 2-5 mm and a particle length of 0.5-1.5 cm. Extrude the pellets through a single-screw or conical twin-screw extruder equipped with a special mold at 110-250°C, then press out three-dimensional patterns on the surface, and after cooling, form a fly ash foamed board base material, and then use The cutting machine cuts to the required size.

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Abstract

The invention relates to a pulverized coal ash foamed sheet, which can be widely applied into indoor floors and outdoor wallboards. The pulverized coal ash foamed sheet is characterized by comprising the following raw materials in percentage by weight: 40-48% of polyvinylchloride resin, 30-40% of pulverized coal ash, 10-15% of aedelforsite, 1.5-2.5% of stabilizer, 2-3.5% of foaming modifier, 0.5-1.5% of foaming agent, 2-5% of calcium stearate, 0.5-1.5% of PE (polyethylene) wax, and 1-2% of sodium bicarbonate. The pulverized coal ash foamed sheet is formed by comprising the following steps: conducting high-temperature coupling cross-linking reaction to the raw materials, pelletizing into particles, extruding and forming by applying a special equipment die, and conducting three-dimensional surface patterns pressing. The pulverized coal ash foamed sheet has the advantages of being water-proof, flame-retardant, corrosion-resistant, moth-proof, acid-base-proof, cold-heat-resistant, impact-proof, and zero-formaldehyde, as well as the advantages of being light in weight, good in wood textures, excellent in machining performance, capable of recycling, and the like.

Description

technical field [0001] The invention is a novel composite plate, in particular to a fly ash foamed plate, which can be widely used in indoor floors and outdoor wall panels. Background technique [0002] Although the boards made of calcium-wood-plastic or stone-plastic materials that appear on the market can be moisture-proof and flame-retardant, they still need auxiliary materials for installation. Can not meet customer requirements. Contents of the invention [0003] The object of the present invention is to provide a kind of fly ash foamed board in order to overcome the above-mentioned defects of the prior art. [0004] In order to achieve the above object, the present invention provides the following technical solutions: [0005] A fly ash foamed board is characterized in that it consists of the following raw materials in weight ratio: [0006] Polyvinyl chloride resin 40-48%, fly ash 30-40%, wollastonite 10-15%, stabilizer 1.5-2.5%. Foam regulator 2-3.5%, foaming a...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K3/36C08K3/22C08K3/34C08K5/098C08K5/09C08J3/24C08J9/04
Inventor 崔海明
Owner 崔海明
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