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 cl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] Example 1

[0010] 1. Mix the sodium polypropylate and water in a ratio of 1:4, and evenly sprinkle the sodium polypropylate into the water and stir continuously to make a viscous gel.

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

[0012] 3. Put the sprayed gel side down on the conveyor belt, enter the laminator through the conveyor belt, and spray polyurethane to produce the stone polyurethane composite board.

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

Example Embodiment

[0014] Example 2

[0015] 1. Mix the polyacrylamide and water in a ratio of 1:12, evenly sprinkle the polyacrylamide into the water and stir continuously to make a viscous gel.

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

[0017] 3. Put the sprayed gel side down on the conveyor belt, enter the laminator through the conveyor belt, and spray polyurethane to produce the stone polyurethane composite board.

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

Example Embodiment

[0019] Example 3

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

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

[0022] 3. Put the sprayed gel side down on the conveyor belt, enter the laminator through the conveyor belt, spray polyurethane, and produce stone polyurethane composite board.

[0023] 4. After the production is finished, clean the surface of the stone polyurethane composite board with water to wash away 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
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