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Plywood putty and preparation method thereof

A plywood and putty technology, applied in the field of plywood, can solve the problems of poor waterproof effect, slow drying speed, insufficient viscosity, etc., and achieve the effect of high uniformity, fast drying speed, and not easy to fall off

Inactive Publication Date: 2017-03-08
浦北县建业胶合板有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plywood generally needs putty to fill the holes, gaps, glue openings and other defects on the plywood after hot pressing. The formula of putty powder in the prior art is relatively simple, and it is usually directly mixed with glue, stone powder and pigments. Insufficient viscosity, poor waterproof effect, easy to fall off after filling, and the strength after hardening after filling is obviously lower than that of the unfilled part, and the drying speed is slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A plywood putty is composed of the following formula components in parts by mass: 20-30 parts of modified organopolysiloxane, 8-10 parts of starch ester, 5-9 parts of urea-formaldehyde glue, 5-15 parts of hydroxymethyl fiber, white cement 10-20 parts, 8-10 parts of nano-silica, 14-18 parts of petroleum coke powder, 13-15 parts of lime powder, 1-3 parts of thickener, 14-18 parts of titanium dioxide, 14-18 parts of asbestos fiber , 20-22 parts of talcum powder, 16-20 parts of wood powder, and 100-140 parts of water.

Embodiment 2

[0017] A plywood putty is composed of the following formula components in parts by mass: 20 parts of modified organopolysiloxane, 8 parts of starch ester, 5 parts of urea-formaldehyde glue, 5 parts of hydroxymethyl fiber, 10 parts of white cement, and 8 parts of nano-silica 14 parts of petroleum coke powder, 13 parts of lime powder, 1 part of thickener, 14 parts of titanium dioxide, 14 parts of asbestos fiber, 20 parts of talcum powder, 16 parts of wood powder, and 100 parts of water.

Embodiment 3

[0019] A plywood putty is composed of the following formula components in parts by mass: 25 parts of modified organopolysiloxane, 9 parts of starch ester, 7 parts of urea-formaldehyde glue, 10 parts of hydroxymethyl fiber, 15 parts of white cement, and 9 parts of nano-silica 16 parts, petroleum coke powder 16 parts, lime powder 14 parts, thickener 2 parts, titanium dioxide 16 parts, asbestos fiber 16 parts, talcum powder 21 parts, wood powder 18 parts, water 120 parts.

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PUM

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Abstract

The invention discloses a plywood putty and a preparation method thereof. The plywood putty is composed of the following components in parts by mass: 20-30 parts of modified organopolysiloxane, 8-10 parts of starch ester, 5-9 parts of urea-formaldehyde glue, 5-15 parts of hydroxymethyl fiber, 10-20 parts of white cement, 8-10 parts of nano silicon dioxide, 14-18 parts of petroleum coke powder, 13-15 parts of lime powder, 1-3 parts of thickener, 14-18 parts of titanium white, 14-18 parts of asbestos fiber, 20-22 parts of talcum powder, 16-20 parts of wood meal and 100-140 parts of water. The plywood putty has the advantages of high viscosity, high fineness, high uniformity, high drying rate and high hardness after forming, and can not easily shed.

Description

technical field [0001] The invention relates to the technical field of plywood, in particular to a plywood putty and a preparation method thereof. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions are glued perpendicular to each other. Plywood generally needs putty to fill the holes, gaps, glue openings and other defects on the plywood after hot pressing. The formula of putty powder in the prior art is relatively simple, and it is usually directly mixed with glue, stone powder and pigments. The viscosity is insufficient, the waterproof effect is poor, it is easy to fall off after filling, and the strength after hardening after filling is obviously lower than that of the unfilled part, and the drying speed is slow. Co...

Claims

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Application Information

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IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 黄河
Owner 浦北县建业胶合板有限责任公司
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