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Process for manufacturing damp-proof low-water-swelling floor base material and method for manufacturing adhesive

A manufacturing process and adhesive technology, applied in the direction of adhesives, adhesive types, aldehyde/ketone condensation polymer adhesives, etc., can solve the problems of reduced service life, warping, edge bulging, etc., to extend service life, The effect of low water absorption thickness expansion

Active Publication Date: 2014-03-12
DARE WOOD BASED PANEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different use environments, the required requirements are also different. Ordinary laminate flooring is used in a humid or high humidity state, which is prone to problems such as edge swelling and warping, which greatly reduces its service life.

Method used

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  • Process for manufacturing damp-proof low-water-swelling floor base material and method for manufacturing adhesive
  • Process for manufacturing damp-proof low-water-swelling floor base material and method for manufacturing adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. The production method of moisture-proof adhesive

[0028] The amount of melamine accounts for 8.5% of the weight of the moisture-proof adhesive, and the molar ratio of formaldehyde to the sum of urea and melamine is controlled at 0.93-0.96; urea is added in two batches, and melamine is added at one time.

[0029] The preparation process is as follows:

[0030] A. Put formaldehyde in the reactor, add caustic soda solution to adjust the pH to 5.0-5.5;

[0031] B. Add melamine at 35°C, raise the temperature to 50°C immediately after adding, take a sample to observe whether the melamine is completely dissolved, and measure the pH value after it is completely dissolved;

[0032] C. After quickly adding urea for the first time, turn on the steam to raise the temperature. When the temperature rises to 60°C, take a sample to detect the pH value, wherein the molar ratio of formaldehyde to the sum of urea and melamine is controlled at 1.45-1.5;

[0033] D. When the temperatu...

Embodiment 2

[0041] 1. Preparation of melamine modified adhesive

[0042] The amount of melamine accounts for 6.5% of the weight of the moisture-proof adhesive, and the molar ratio of formaldehyde to the sum of urea and melamine is 0.95-0.98; urea is added in two batches, and melamine is added in one go.

[0043] The preparation process is as follows:

[0044] A, put formaldehyde in the reactor, add caustic soda solution to adjust the pH to 5.5-6.0;

[0045] B. Add melamine at 40°C, raise the temperature to 50°C immediately after adding, take a sample to observe whether the melamine is completely dissolved, and measure the pH value after it is completely dissolved;

[0046] C. After quickly adding urea for the first time, turn on the steam to raise the temperature. When the temperature rises to 60°C, take a sample to check the pH value. The molar ratio of formaldehyde to the sum of urea and melamine is controlled at 1.4-1.45;

[0047] D. When the temperature continues to rise to 80°C, ta...

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Abstract

The invention belongs to the technical field of wood processing, and relates to a process for manufacturing a floor base material, in particular to a process for manufacturing a damp-proof low-water-swelling floor base material and a method for manufacturing adhesive. The process for manufacturing the damp-proof low-water-swelling floor base material includes the following steps of wood peeling, chipping, screening, washing, cooking, fiber separating, glue mixing and applying, drying and sorting, paving and forming, prepressing, hot pressing, cooling, sanding, inspecting and grading, and packaging and storage entering. According to the special requirements of the damp-proof low-water-swelling floor base material, the melamine modified urea resin damp-proof adhesive is adopted, and the floor base material with the high waterproof and damp-proof performance is developed according to the low thickness swelling rate of water absorption and damp-proof requirements and based on the production process of a common floor base material. The floor base material manufactured through the method is low in cost and high in quality and has the damp-proof function, the low thickness swelling rate of water absorption of a floor made of the base material is low, and the floor has the damp-proof function and is suitable for home service environments in a high damp state.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and relates to a manufacturing process of a floor base material, in particular to a manufacturing process of a moisture-proof and low-absorption floor base material and a production method of an adhesive. Background technique [0002] Laminate flooring originated in the early 1980s. With the vigorous development of China's economy and the improvement of residents' living standards, laminate flooring has become a floor decoration for people's homes due to its outstanding advantages such as comfortable feet, natural warmth, and elegance. The preferred material, the market demand is also showing a linear upward trend. [0003] Laminate flooring is a floor made of one or more layers of special paper impregnated with thermosetting amino resin, paved on the surface of medium and high-density fiberboard, with a balance layer on the back and a wear-resistant layer on the front, and hot-pressed. ...

Claims

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Application Information

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IPC IPC(8): D21J1/04D21J1/06D21C5/00D21B1/14C09J161/30
Inventor 陈秀兰史国祥
Owner DARE WOOD BASED PANEL GRP
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