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Anti-aging agent for urea-formaldehyde resin adhesive and preparation method of anti-aging agent

An anti-aging agent, urea-formaldehyde resin technology, applied in the direction of adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of unstable heat resistance and high temperature resistance of urea-formaldehyde resin adhesives. Significant heat and water resistance, extended service life, improved heat and water resistance

Active Publication Date: 2019-04-12
柳州市荣森新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a urea-formaldehyde resin adhesive anti-aging agent for the problems of unstable heat resistance and high temperature resistance of urea-formaldehyde resin adhesives

Method used

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  • Anti-aging agent for urea-formaldehyde resin adhesive and preparation method of anti-aging agent
  • Anti-aging agent for urea-formaldehyde resin adhesive and preparation method of anti-aging agent
  • Anti-aging agent for urea-formaldehyde resin adhesive and preparation method of anti-aging agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An antiaging agent for urea-formaldehyde resin adhesives, comprising the following raw materials in parts by weight: 58 parts of resveratrol, 55 parts of absolute ethanol, 43 parts of corn gluten, 30 parts of montmorillonite powder and 16 parts of nicotinamide.

[0026] A preparation method of the above-mentioned urea-formaldehyde resin adhesive anti-aging agent, comprising the following steps:

[0027] a. According to the weight ratio, divide the montmorillonite powder into two parts, the weight part ratio of the first part of montmorillonite powder and the second part of montmorillonite powder is 1:52, then take nicotinamide, resveratrol, the first part Add montmorillonite powder and absolute ethanol into the reaction kettle, then raise the temperature to 120°C, keep the temperature for 50 minutes, then raise the temperature to 127°C, keep the temperature for 75 minutes, continue to raise the temperature to 137°C, and react for 65 minutes;

[0028] b. Cool down to 80°...

Embodiment 2

[0032] An antiaging agent for urea-formaldehyde resin adhesives, comprising the following raw materials in parts by weight: 87 parts of resveratrol, 69 parts of absolute ethanol, 60 parts of corn gluten, 45 parts of montmorillonite powder and 22 parts of nicotinamide.

[0033] A preparation method of the above-mentioned urea-formaldehyde resin adhesive anti-aging agent, comprising the following steps:

[0034] a. According to the weight ratio, divide the montmorillonite powder into two parts, the weight part ratio of the first part of montmorillonite powder and the second part of montmorillonite powder is 1:60, then take nicotinamide, resveratrol, the first part Add montmorillonite powder and absolute ethanol into the reaction kettle, then raise the temperature to 126°C, keep the temperature for 60 minutes, then raise the temperature to 136°C, keep the temperature for 95 minutes, continue to heat up to 146°C, and react for 77 minutes;

[0035] b. Cool down to 90°C, add corn pr...

Embodiment 3

[0039] An antiaging agent for urea-formaldehyde resin adhesives, comprising the following raw materials in parts by weight: 65 parts of resveratrol, 58 parts of absolute ethanol, 47 parts of corn gluten, 34 parts of montmorillonite powder and 18 parts of nicotinamide.

[0040] A preparation method of the above-mentioned urea-formaldehyde resin adhesive anti-aging agent, comprising the following steps:

[0041]a. According to the weight ratio, divide the montmorillonite powder into two parts, the weight part ratio of the first part of montmorillonite powder and the second part of montmorillonite powder is 1:54, then take nicotinamide, resveratrol, the first part Add montmorillonite powder and absolute ethanol into the reaction kettle, then raise the temperature to 121°C, keep the temperature for 53 minutes, then raise the temperature to 129°C, keep the temperature for 80 minutes, continue to heat up to 139°C, and react for 68 minutes;

[0042] b. Cool down to 83°C, add corn pro...

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Abstract

The invention provides an anti-aging agent for a urea-formaldehyde resin adhesive and a preparation method of the anti-aging agent, and particularly relates to the technical field of adhesives. The anti-aging agent comprises the following raw materials in parts by weight: 58-87 parts of resveratrol, 55-69 parts of absolute ethyl alcohol, 43-60 parts of zein, 30-45 parts of montmorillonite powder and 16-22 parts of nicotinamide. After the anti-aging agent is used for the urea-formaldehyde resin adhesive, the storage period of the urea-formaldehyde resin adhesive can be prolonged to 35 days or more, and adhesive strength of the adhesive can also be 1.2 MPa or above, so that obvious heat resistance and water resistance are achieved in a using process and the service life is prolonged. The rawmaterials adopted in the preparation method are all natural and non-toxic substances, no toxic or harmful substances are generated in the preparation process, and the preparation method is safe, reliable, and environmentally friendly, is easy to popularize and is suitable for large-scale production.

Description

【Technical field】 [0001] The invention relates to the technical field of adhesives, in particular to an antiaging agent for urea-formaldehyde resin adhesives and a preparation method thereof. 【Background technique】 [0002] Adhesives are an essential component in the manufacturing process of wood-based panels. With the increase in the use of adhesives, the wood-based panel industry has different requirements for adhesive bonding performance according to product differences. In today's wood-based panel industry, formaldehyde adhesives (urea-formaldehyde resins, phenolic resins, melamine-formaldehyde resins, etc.) are still the most widely used, and their advantages are low cost and easy preparation. Among formaldehyde adhesives, urea-formaldehyde resin adhesives are used in the largest amount, accounting for 90% of the adhesives used for wood-based panels, accounting for more than 60% of the adhesives in the entire wood processing industry. Compared with phenolic resin adhe...

Claims

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Application Information

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IPC IPC(8): C09J11/04C09J11/08C09J161/24
CPCC09J11/04C09J11/08C09J161/24
Inventor 李同双张克杨兆坚
Owner 柳州市荣森新型材料科技有限公司
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