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Formaldehyde-free bio-based artificial board adhesive and preparation method thereof

A bio-based, wood-based panel technology, applied in the preparation of animal glue or gelatin, adhesives, polyether adhesives, etc., can solve problems such as allergic dermatitis, stimulate skin and mucous membranes, reduce formaldehyde release, and achieve the goal of eliminating formaldehyde The effects of using, solving pollution, and easily obtaining raw materials

Inactive Publication Date: 2021-08-13
上海德翔木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the mid-1960s, people noticed the hazards of formaldehyde. The long-term release of residual formaldehyde will not only irritate the skin and mucous membranes, cause eye discomfort or allergic dermatitis, but also cause sore throat and even induce bronchial asthma. Mutations, and then induce malignant tumors, which have great safety hazards to the health of humans and animals as well as the ecological environment
Therefore, go back to the beginning and start researching formaldehyde-free adhesives. The environmental performance of wood-based panels has become the focus of research in recent years. Many scientific research institutes, colleges and enterprises in my country have developed urea-formaldehyde resin adhesives with low formaldehyde release. However, measures such as masking, adsorption and sealing are often taken to reduce the amount of formaldehyde released, so that the formaldehyde release of its products barely reaches the E1 level (0.124mg / m3) standard level

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for preparing the above-mentioned formaldehyde-free bio-based wood-based panel adhesive, comprising the steps of:

[0025] S1. Add 70 parts of water to the reaction kettle, and control the temperature at 25°C;

[0026] S2. Add 4 parts of sodium bicarbonate to the reaction kettle obtained in step S1, stir evenly, and adjust the pH to 8;

[0027] S3. Add 2 parts of bio-based sulfonate to the reaction kettle obtained in step S2, and stir evenly;

[0028] S4, add 6 parts of viscose fibers to the reaction kettle obtained in step S3, and stir evenly;

[0029] S5. Add 50 parts of soybean protein and 12 parts of egg white to the reaction kettle obtained in step S4, and stir evenly;

[0030] S6. Add 0.08 parts of preservative and 2 parts of surfactant to the reaction kettle obtained in step S5 and stir for 20 minutes;

[0031] S7. Add 12 parts of guar gum and 10 parts of polyethylene glycol to the reactor obtained in step S6 to obtain a formaldehyde-free ...

Embodiment 2

[0033] A preparation method for preparing the above-mentioned formaldehyde-free bio-based wood-based panel adhesive, comprising the steps of:

[0034] S1. Add 60 parts of water to the reaction kettle, and control the temperature to 25°C;

[0035] S2. Add 3 parts of sodium bicarbonate to the reaction kettle obtained in step S1, stir evenly, and adjust the pH to 8;

[0036] S3, add 1.5 parts of bio-based sulfonate to the reaction kettle obtained in step S2, and stir evenly;

[0037] S4, add 5 parts of viscose fibers to the reaction kettle obtained in step S3, and stir evenly;

[0038] S5. Add 45 parts of soybean protein and 10 parts of egg white to the reaction kettle obtained in step S4, and stir evenly;

[0039] S6. Add 0.05 parts of preservative and 1 part of surfactant to the reaction kettle obtained in step S5 and stir for 20 minutes;

[0040] S7. Add 9 parts of guar gum and 9 parts of polyethylene glycol to the reactor obtained in step S6 to obtain a formaldehyde-free b...

Embodiment 3

[0042] A preparation method for preparing the above-mentioned formaldehyde-free bio-based wood-based panel adhesive, comprising the steps of:

[0043] S1. Add 80 parts of water to the reactor, and control the temperature to 25°C;

[0044] S2. Add 5 parts of sodium bicarbonate to the reaction kettle obtained in step S1, stir evenly, and adjust the pH range to 8;

[0045] S3. Add 3 parts of bio-based sulfonate to the reaction kettle obtained in step S2, and stir evenly;

[0046] S4, add 7 parts of viscose fibers to the reaction kettle obtained in step S3, and stir evenly;

[0047] S5. Add 55 parts of soybean protein and 15 parts of egg white to the reaction kettle obtained in step S4, and stir evenly;

[0048] S6, adding 1 part of preservative and 3 parts of surfactant to the reaction kettle obtained in step S5 and stirring for 20 minutes;

[0049] S7. Add 14 parts of guar gum and 12 parts of polyethylene glycol to the reactor obtained in step S6 to obtain a formaldehyde-free...

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Abstract

The invention discloses a formaldehyde-free bio-based artificial board adhesive and a preparation method thereof. The formaldehyde-free bio-based artificial board adhesive comprises viscose, soybean protein, guar gum, polyethylene glycol, egg white, sodium bicarbonate, a surfactant, a preservative and bio-based sulfonate. The adhesive has the beneficial effects that the raw materials do not use any formaldehyde or components taking the formaldehyde as the raw materials, the use of the formaldehyde is fundamentally avoided from the source, the problem that the adhesive used by an existing artificial board contains free formaldehyde is solved, the problem of formaldehyde pollution in the production and use process is solved, and the adhesive is easy to obtain the raw materials, low in cost and suitable for wide popularization.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a formaldehyde-free bio-based wood-based panel adhesive and a preparation method thereof. Background technique [0002] In recent years, my country's adhesive industry has developed rapidly and has continuously penetrated into aerospace, medical and health, agriculture and forestry, wood processing, transportation, construction, housing equipment, household appliances, automobiles, electronics, office supplies, shoemaking, packaging and paper products. And so on in all walks of life. Among them, the wood processing industry is the largest user of adhesives in the world, and its demand accounts for more than half of the total amount of adhesives. Wood-based panels are a large consumer of adhesives in the wood industry. my country's wood-based panel products mainly include plywood, particleboard, fiberboard, ecological board, density board and so on. [0003] Formaldehyde-free ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J101/24C09J105/00C09J197/02C09J171/02C09J11/08
CPCC09J189/00C09J11/08C08K2003/262C08L2205/025C08L2205/035C08L1/24C08L5/00C08L89/00C08L97/02C08L71/02C08K3/26
Inventor 崔海明
Owner 上海德翔木业有限公司
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