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Environment-friendly adhesive for plates

An adhesive and environmentally friendly technology, applied in the directions of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of the need to improve the adhesive strength and the high cost of raw materials with formaldehyde content, and improve the adhesive strength and thermal stability. , The preparation process and preparation equipment are simple and feasible, and the raw material compatibility is reasonable.

Active Publication Date: 2016-05-04
湖南乔伟生态科技新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, epoxy resin adhesives and phenolic resin adhesives are mostly used. The above adhesives have good stability, but the formaldehyde content and raw material costs are high, and the adhesive strength needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An environmentally friendly adhesive for boards, which is prepared from the following raw materials in parts by weight:

[0024] 300 parts of purified water, 50 parts of ethyl acrylate, 30 parts of starch ether, 25 parts of polyvinyl alcohol, 5 parts of peanut shells, 4 parts of hydroxyethyl cellulose, 4 parts of nano-silica, 3 parts of montmorillonite, lithium-based 3 parts of bentonite, 3 parts of bean root, 2 parts of silicon carbide, 2 parts of zinc stearate, 2 parts of ammonia water, 1 part of sodium lauryl sulfate;

[0025] The preparation method of above-mentioned adhesive comprises the steps:

[0026] Step 1) Weighing raw materials: Weighing each raw material according to parts by weight for subsequent use;

[0027] Step 2) Prepare material 1: mix peanut shells and bean root, pulverize them with a grinder, and then grind them into material 1 with a particle size of 200 mesh;

[0028] Step 3) Preparation of material 2: Add montmorillonite, lithium-based bentoni...

Embodiment 2

[0032] An environmentally friendly adhesive for boards, which is prepared from the following raw materials in parts by weight:

[0033] 500 parts of purified water, 80 parts of ethyl acrylate, 50 parts of starch ether, 40 parts of polyvinyl alcohol, 7 parts of peanut shells, 6 parts of hydroxyethyl cellulose, 6 parts of nano silicon dioxide, 5 parts of montmorillonite, lithium base 5 parts of bentonite, 5 parts of bean root, 3 parts of silicon carbide, 3 parts of zinc stearate, 3 parts of ammonia water, 2 parts of sodium lauryl sulfate;

[0034] The preparation method of above-mentioned adhesive comprises the steps:

[0035] Step 1) Weighing raw materials: Weighing each raw material according to parts by weight for subsequent use;

[0036] Step 2) Prepare material 1: mix peanut shells and bean root, pulverize them with a grinder, and then grind them into material 1 with a particle size of 200 mesh;

[0037] Step 3) Preparation of material 2: Add montmorillonite, lithium-base...

Embodiment 3

[0041] The performance parameter test of adhesive of the present invention:

[0042] With reference to GB / T9846.3-2004 and GB / T14074-2006 standard testing, taking Example 1 as an example, the specific testing results are shown in Table 1:

[0043] Table 1

[0044] performance parameters parameter standard Embodiment 1 of the present invention Specific gravity, g / ml 1.05-1.3 1.17 Formaldehyde emission, mg / L 0.5（E0） ＜0.01 Adhesive strength, Mpa ＞0.5 1.59 stability, days ＞30 ＞100 Plate opening time, h ＞4h ＞8h

[0045] Conclusion: The adhesive prepared by the invention is environmentally friendly and pollution-free, has strong bonding strength, good stability, and a long open time of the board, which is suitable for board processing.

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Abstract

The invention belongs to the field of adhesives, and discloses an environment-friendly adhesive for plates. The environment-friendly adhesive is prepared from purified water, ethyl acrylate, starch ether, polyvinyl alcohol, peanut shells, hydroxyethyl cellulose, nano-silicon dioxide, montmorillonite, lithium-base bentonite, vietnamese sophora roots, silicon carbide, zinc stearate, ammonia water and lauryl sodium sulfate. The prepared environment-friendly adhesive is reasonable in raw-material compatibility, environmentally friendly, free of pollution and free of formaldehyde and other harmful substances.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to an environmentally friendly adhesive used for boards. Background technique [0002] Adhesives are widely used in construction, furniture production and daily life. The glue in natural adhesives has mild allergenic properties. Synthetic adhesives pollute the surrounding air more seriously. These adhesives can volatilize a large amount of organic pollutants during use, and the main types are: phenol, cresol, formaldehyde, etc. Long-term exposure to these organic substances can irritate the skin, respiratory tract and eye mucosa, causing contact dermatitis, conjunctivitis, asthmatic bronchitis and some allergic diseases. [0003] A key factor affecting board performance is the adhesive. In the prior art, various adhesives are used in board processing to increase the utilization rate of wood and improve the performance of boards. At present, epoxy resin adhesives...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/08C09J11/04C09J11/06
CPCC09J4/06C09J11/04C09J11/06C09J11/08C08F251/00C08F283/06C08F251/02
Inventor 孙小春
Owner 湖南乔伟生态科技新材料股份有限公司
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