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Method for solving polyurethane pollution to stone surface in stone polyurethane composite board

A polyurethane and composite board technology, applied in chemical instruments and methods, lamination devices, lamination, etc., can solve problems such as cleaning difficulties, achieve the effects of avoiding direct contact, preventing pollution of stone surfaces, and easy cleaning

Inactive Publication Date: 2014-09-03
山东华德隆建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the production process, polyurethane tends to permeate along the gaps and stick to the stone surface during foaming, and it is very difficult to clean up the contaminated stone surface, which is a major problem that has plagued the stone polyurethane thermal insulation composite board industry for many years.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] 1. Mix sodium polyacrylate and water at a ratio of 1:4, sprinkle sodium polyacrylate into water evenly and keep stirring to form a viscous jelly.

[0011] 2. Spray the jelly on the stone surface to form a protective film.

[0012] 3. The side of the sprayed glue is put down on the conveyor belt, and enters the laminator through the conveyor belt, and the polyurethane is sprayed to produce the stone polyurethane composite board.

[0013] 4. After the production is over, wash the surface of the stone polyurethane composite board with water to remove the polyurethane overflowing to the stone surface.

Embodiment 2

[0015] 1. Mix polyacrylamide and water at a ratio of 1:12, sprinkle polyacrylamide evenly into the water and keep stirring to form a viscous jelly.

[0016] 2. Spray the jelly on the stone surface to form a protective film.

[0017] 3. The side of the sprayed glue is put down on the conveyor belt, and enters the laminator through the conveyor belt, and the polyurethane is sprayed to produce the stone polyurethane composite board.

[0018] 4. After the production is over, wash the surface of the stone polyurethane composite board with water to remove the polyurethane overflowing to the stone surface.

Embodiment 3

[0020] 1. Mix sodium carboxymethyl cellulose and water at a ratio of 1:8, sprinkle sodium carboxymethyl cellulose evenly into the water and stir continuously to form a viscous jelly.

[0021] 2. Spray the jelly on the stone surface to form a protective film.

[0022] 3. Put the glue-coated side down on the conveyor belt, and enter the laminator through the conveyor belt, spray polyurethane, and produce stone polyurethane composite boards.

[0023] 4. After the production is over, wash the surface of the stone polyurethane composite board with water to remove the polyurethane overflowing to the stone surface.

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PUM

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Abstract

The invention discloses a method for solving polyurethane pollution to a stone surface in a stone polyurethane composite board. The method comprises the steps of mixing compound and water to form a thick jelly; and spraying the thick jelly on the stone surface to prevent direct contact of polyurethane and the stone surface, thereby preventing adhesion of polyurethane and the stone surface. The compound and water have certain solubility, can be cleaned easily and has no residue. The method is simple for operation; polyurethane can be cleaned easily when the material overflows; time and labor can be saved; and production efficiency is increased.

Description

Technical field [0001] The patent of the invention relates to a method for solving the problem of polyurethane pollution of the stone surface of the stone polyurethane composite board, which belongs to the field of chemical application. Background technique [0002] Polyurethane is one of the building insulation materials with the best performance at present, and has been widely used in external wall insulation systems. Polyurethane thermal insulation and decorative composite panels have become one of the development trends of external wall insulation. However, during the production process, polyurethane is easy to penetrate along the gaps and bond to the stone surface during foaming. It is very difficult to clean the stone surface after it is polluted, which is a major problem that has plagued the stone polyurethane thermal insulation composite board industry for many years. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the inv...

Claims

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Application Information

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IPC IPC(8): B32B9/04B32B27/40B32B37/15
Inventor 魏振波林建果王希安
Owner 山东华德隆建材科技有限公司