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Novel environmental-friendly modified glue for impregnated paper and preparation method thereof

A technology of impregnating and modifying paper, which is applied in paper, papermaking, adhesives, etc., can solve problems such as heavy odor, high free formaldehyde, and environmental pollution, and achieve the effects of reducing formaldehyde release, enhancing polycondensation reaction, and good film-forming properties

Active Publication Date: 2012-01-04
天津市盛世德新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of heavy odor, high free formaldehyde, and serious pollution to the environment of the traditional glue used for impregnating paper, and to provide a new type of modified glue for environmentally friendly impregnated paper. The problem of high formaldehyde also ensures various performance indicators and improves hardness and chemical resistance

Method used

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  • Novel environmental-friendly modified glue for impregnated paper and preparation method thereof
  • Novel environmental-friendly modified glue for impregnated paper and preparation method thereof
  • Novel environmental-friendly modified glue for impregnated paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation method of a novel environment-friendly modified glue for impregnated paper, comprising the following steps:

[0036] ① Add water and formaldehyde to the reaction kettle in proportion, 55 parts of water, 22 parts of formaldehyde, then add sodium hydroxide to adjust the pH value to 9.5, raise the temperature to 40 degrees, then add 5 parts of glutaraldehyde, and then raise the temperature to 78 degrees , and then add ammonia water to adjust the pH to 9.5.

[0037] ②Put 6 parts of melamine into the reaction kettle in proportion, fully react for 20 minutes and see that the solution is clear, then add 6 parts of melamine to react for 20 minutes and see the solution is clear, then add 8 parts of melamine for reaction, the cumulative amount of melamine added three times is 20 servings.

[0038] ③ After the solution in the reaction kettle is uniform and transparent, add 2.3 parts of cross-linking modifier caprolactam and 3.1 parts of co-synthesis agent triethylen...

Embodiment 2

[0041] A preparation method of a novel environment-friendly modified glue for impregnated paper, comprising the following steps:

[0042] ①Put water and acetaldehyde into the reaction kettle in proportion, 50 parts of water, 23 parts of acetaldehyde, then add sodium hydroxide to adjust the pH value to 10, raise the temperature to 40 degrees, then add 7.5 parts of adipaldehyde in proportion, and then Raise the temperature to 81 degrees, and then add sodium hydroxide solution to adjust the pH to 10.

[0043] ②Put 7 parts of melamine into the reaction kettle in proportion, fully react for 20 minutes and see that the solution is clear, then add 7 parts of melamine to react for 20 minutes and see the solution is clear, then add 10 parts of melamine for reaction, the cumulative amount of melamine added three times is 24 servings.

[0044] ③ After the solution in the reaction kettle is uniform and transparent, add 3.8 parts of cross-linking modifier acrylamide and 1.2 parts of auxil...

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Abstract

The invention relates to novel environmental-friendly modified glue for impregnated paper and a preparation method thereof. The modified glue comprises the following raw materials in parts by weight: 40-60 parts of water, 20-26 parts of tripolycyanamide, 5-25 parts of dialdehyde, 10-25 parts of monoaldehyde, 1-5 parts of crosslinking modifying agent, 1-5 parts of auxiliary synthetic agent and 1-2 parts of post eliminating agent. The invention also provides the preparation method of the modified glue; the invention solves the problem that the traditional glue for impregnated paper has stronger smell and high free formaldehyde, also ensures every performance index and increases the hardness and the chemical property resistance.

Description

technical field [0001] The invention relates to a novel modified glue for environment-friendly impregnated paper and a preparation method thereof, belonging to an environment-friendly new polymer material. Background technique [0002] In most of the furniture and composite flooring markets in my country, the melamine glue impregnated paper veneer process is the main method. Its products have clear color, good gloss, high hardness and excellent chemical resistance. It is the most widely used and reliable product in the domestic and foreign markets. craft. However, the process of making melamine glue and the impregnation process will cause pollution to workers and the surrounding environment. In addition, with the general trend of the development of the world's low-carbon economy at the Copenhagen Conference, more and more details of chemical production are being paid attention to. The control requirements are more stringent. At present, domestic impregnated paper manufactur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/28C09J11/06D21H17/51
Inventor 杜永萍
Owner 天津市盛世德新材料科技有限公司
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