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Polyvinyl acetate latex and preparation method thereof

A technology of polyvinyl acetate and vinyl acetate, which is applied in the direction of monocarboxylic acid ester copolymer adhesives, adhesive types, non-polymer adhesive additives, etc., can solve the problem of irregular color on the surface of finished furniture and affect the product Appearance and other problems, to save manpower and paint investment, avoid color cast, and reduce costs

Inactive Publication Date: 2017-12-05
王宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the relatively dark color of the base material density board, and between the veneer and the base material, there is no other shielding layer except the latex used for bonding, while the commonly used polyvinyl acetate latex is a white liquid , it is a transparent film-like solid after solidification, without any blocking effect, so if the natural veneer pasted is light-colored veneer, the color of the original density board at the bottom will be revealed, resulting in serious quality problems of incorrect surface color of the finished furniture, which directly affects The appearance of the product has become the main problem faced by panel furniture manufacturers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: polyvinyl acetate latex, its raw materials include, in parts by weight: 41 parts of vinyl acetate; 3 parts of polyvinyl alcohol; 2 parts of dibutyl phthalate; 0.7 parts of octanol; 0.03 parts of ammonium persulfate parts; 0.03 part of Lerasu dyeing agent, which is the coloring agent of Lerasu Red and Lerasu Yellow, and the color is golden orange; 35 parts of water.

[0021] and obtained by the following methods:

[0022] Step 1) take by weighing each raw material by weight;

[0023] Step 2) adding dibutyl phthalate to octanol, mixing and stirring to dissolve to obtain solution A;

[0024] Step 3) After adding polyvinyl alcohol while stirring water at a temperature of 60°C, the temperature is raised to 80°C, and the temperature of the solution is reduced to 62-65°C after being kept warm until all dissolved, and vinyl acetate and radon are added under stirring conditions. Lasu dye, to obtain solution B;

[0025] Step 4) Add solution A to solution B, then add...

Embodiment 2

[0026] Example 2: Polyvinyl acetate latex, the raw materials in parts by weight include: 45 parts of vinyl acetate; 5 parts of polyvinyl alcohol; 4 parts of dibutyl phthalate; 1 part of octanol; 0.05 parts of ammonium persulfate 0.05 part of Leilasu Red; 44.9 parts of water.

[0027] Step 1) take by weighing each raw material by weight;

[0028] Step 2) adding dibutyl phthalate to octanol, mixing and stirring to dissolve to obtain solution A;

[0029] Step 3) After adding the polyvinyl alcohol to the water with a temperature of 70°C while stirring, the temperature is raised to 90°C, and the temperature of the solution is reduced to 66~69°C after the temperature is kept until all dissolved. Lassu red, get solution B;

[0030] Step 4) Add solution A into solution B, then add ammonium persulfate, stir and mix evenly, and perform emulsion polymerization at a temperature of 66-69° C. to obtain the result.

Embodiment 3

[0031] Example 3: Polyvinyl acetate latex, its raw materials include, in parts by weight: 55 parts of vinyl acetate; 6 parts of polyvinyl alcohol; 6 parts of dibutyl phthalate; 1.5 parts of octanol; 0.07 parts of ammonium persulfate parts; 0.06 part of Leilasu yellow; 50 parts of water.

[0032] Step 1) take by weighing each raw material by above-mentioned parts by weight;

[0033] Step 2) adding dibutyl phthalate to octanol, mixing and stirring to dissolve to obtain solution A;

[0034] Step 3) After adding the polyvinyl alcohol while stirring the water with a temperature of 80°C, the temperature is raised to 95°C, and the temperature of the solution is reduced to 70~74°C after being kept warm until all dissolved, and vinyl acetate and radon are added under stirring conditions. Lasuhuang, to obtain solution B;

[0035] Step 4) Add solution A to solution B, then add ammonium persulfate, stir and mix evenly, and perform emulsion polymerization at a temperature of 70-74° C. to...

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PUM

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Abstract

The invention discloses polyvinyl acetate latex and a preparation method thereof and mainly relates to the field of latex for furniture. The polyvinyl acetate latex comprises the raw materials in parts by weight: 40-50 parts of vinyl acetate, 2-8 parts of polyvinyl alcohol, 2-6 parts of dibutyl phthalate, 0.5-1.5 parts of octanol, 0.03-0.08 part of ammonium persulfate, 0.01-0.1 part of Lei Lasu colorant and 30-50 parts of water. The polyvinyl acetate latex has the beneficial effects of having covering property, effectively shielding the relatively dark bottom color of a substrate after being smeared between a wood veneer and the substrate, better adapting to the wood gradual thinning tendency of the veneer wood and solving the color shift problem of light-colored wood and wood combined furniture.

Description

technical field [0001] The invention relates to the field of latex for furniture, in particular to polyvinyl acetate latex and a preparation method thereof. Background technique [0002] With the development of modern furniture, wood-panel combined furniture occupies most of the furniture share. In the processing and production, the wood-panel combined furniture adopts the MDF veneer technology. Among them, MDF refers to the basic board of furniture, and veneer refers to pasting natural veneer on the MDF, so that the furniture has the texture of natural wood products. [0003] At the same time, my country is not only a big wood producing country, but also a big wood consumption country. With the development of my country's national economy and the improvement of people's living standards, the demand for wood from all aspects of society continues to rise. According to statistics, my country's total wood consumption has increased by 173% in the past 10 years, becoming the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C09J11/06C09J11/08
CPCC09J131/04C09J11/06C09J11/08
Inventor 王宇
Owner 王宇
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