Preparing method for fiberboard surface treating agent and application method of fiberboard surface treating agent

A technology of surface treatment agent and application method, applied in the direction of wood treatment, wood treatment details, chemical instruments and methods, etc., can solve the problems of wet flowers, impregnated paper not firmly pressed, bubbling, etc., to improve reactivity, reduce Effects of uncontrollability, increased stability and permeability

Active Publication Date: 2016-06-15
DONGYING TOROYAL MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a preparation method and application method of a fiberboard surface treatment agent, so as to solve the problems that the impregnated paper is not firmly pressed and wet and bubbling when the fiberboard is facing.

Method used

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  • Preparing method for fiberboard surface treating agent and application method of fiberboard surface treating agent
  • Preparing method for fiberboard surface treating agent and application method of fiberboard surface treating agent

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Experimental program
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Embodiment 1

[0031] The raw material formula of table 1 embodiment

[0032]

[0033] 1) Synthesis of surface treatment agent:

[0034] (1) Add accurately measured glyoxal and formaldehyde into the reaction kettle equipped with mechanical stirring, temperature controller, and condensation reflux equipment, and control the reaction temperature at 35-40°C;

[0035] (2) Add dilute sulfuric acid to adjust pH=2.0~2.5;

[0036] (3) The addition of melamine and urea is completed within 25 to 30 minutes ;

[0037] (4) Heat up to 75°C and keep warm for 5 minutes;

[0038] (5) Add alkali to adjust pH=8.0~8.5; cool down

[0039] (6) When the temperature drops to 75°C, add urea , continue to cool down to 50 ~ 60 ℃;

[0040] (7) Slowly add surfactant and stir for 30 minutes. Continue to cool down to below 40°C;

[0041] (8) Adjust the pH=7.5~8.0, and discharge.

[0042] The quality index of gained surface treatment agent:

[0043] pH value: 7.8

[0044] Viscosity (25°C): 5~15mpa*s

[00...

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Abstract

The invention discloses a preparing method for a fiberboard surface treating agent and an application method of the fiberboard surface treating agent. The preparing method for the surface treating agent comprises the two steps of synthesis of melamine-urea-glyoxal-formaldehyde copolycondensation resin and blending modification of the resin and a surface active agent. When a facing fiberboard is produced, firstly, the fiberboard surface treating agent is evenly sprayed to the surface of the fiberboard, and then melamine impregnated paper is tiled. Then, the melamine impregnated paper and the fiberboard are placed in a press to be subjected to hot press molding. A fiberboard base material used in the production process of the melamine facing board is treated through a chemical means, the water content, the surface smoothness and the strength of the base material are adjusted through the surface treating agent, uncontrollability of the base material in the production process is reduced, and the production waste caused by instability of the quality of the fiberboard base material is avoided.

Description

technical field [0001] The invention relates to the field of decorative artificial board additives, in particular to a preparation method and an application method of a fiberboard surface treatment agent. Background technique [0002] Due to its excellent performance, easy processing and moderate price, medium and high density fiberboard has been favored by people. With the advancement of science and technology, the derivative series of fiberboards and deep-processing varieties continue to emerge and improve, and various types of fiberboards will be more and more widely used in various fields of the national economy. Among them, low-pressure short-cycle melamine-impregnated paper is currently the most common veneer technology. This process has high requirements for fiberboard substrates when hot-pressing and pasting. Generally, the surface of fiberboard substrates is required to be flat and smooth, with symmetrical structures, uniform thickness, and thickness tolerance contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/50C08G12/38B32B37/06B32B37/10
CPCB27K3/0228B27K3/50B27K2200/10B32B37/06B32B37/10C08G12/38
Inventor 刘保卫张翔樊茂祥纪良
Owner DONGYING TOROYAL MATERIAL TECH
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