Flame-retardant urea-formaldehyde resin adhesive and preparation method thereof

A technology of urea-formaldehyde resin glue and flame retardant, which is applied in the direction of adhesives, adhesive additives, aldehyde/ketone condensation polymer adhesives, etc. It can solve the problems of fire hazards, poor thermal stability of urea-formaldehyde resin, etc., and achieve retention and dispersion Performance, ease of reaction conditions, and improved flame retardancy

Pending Publication Date: 2021-12-24
临沂德万家木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, urea-formaldehyde resin has poor thermal stability and is easy to degrade at high temperature. Particle boards, wood boards and other products produced by it are also accompanied by fire hazards during use.

Method used

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  • Flame-retardant urea-formaldehyde resin adhesive and preparation method thereof

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Effect test

Embodiment 1

[0031] A preparation method of a flame-retardant urea-formaldehyde resin adhesive, comprising the following steps:

[0032] (1) Prepare modified inorganic mineral particles: use deionized water to disperse 100g inorganic mineral particles (200 mesh) and configure a concentration of 15wt% inorganic mineral particle slurry, wherein antimony trioxide and other hydroxides in the inorganic mineral particles The mass ratio is 1:3, and stearic acid is added after heating to 85°C in a water bath to configure a modified reaction solution with a stearic acid concentration of 6wt%, allowing it to react under 20Khz ultrasonic vibration for 45min, and then place it in a centrifuge Within 10 minutes, the condition of rotating speed of 8000 rpm was maintained to obtain modified inorganic mineral particles. The mass ratio of antimony trioxide to other hydroxides in the inorganic mineral particles is 1:3.

[0033] (2) Preparation of flame retardant: After mixing the modified inorganic mineral...

Embodiment 2

[0045] A preparation method of a flame-retardant urea-formaldehyde resin adhesive, comprising the following steps:

[0046] (1) Prepare modified inorganic mineral particles: use deionized water to disperse 50g inorganic mineral particles (200 mesh) and configure a concentration of 15wt% inorganic mineral particle slurry, wherein antimony trioxide and other hydroxides in the inorganic mineral particles The mass ratio is 1:3, and stearic acid is added after heating to 85°C in a water bath to configure a modified reaction solution with a stearic acid concentration of 6wt%, allowing it to react under 20Khz ultrasonic vibration for 45min, and then place it in a centrifuge Within 10 minutes, the condition of rotating speed of 8000 rpm was maintained to obtain modified inorganic mineral particles.

[0047] (2) Preparation of flame retardant: After mixing the modified inorganic mineral particles with 15g of tris(2-chloroethyl)phosphate, dilute with 100mL of acetone, let it react under...

Embodiment 3

[0050] A preparation method of a flame-retardant urea-formaldehyde resin adhesive, comprising the following steps:

[0051] (1) Prepare modified inorganic mineral particles: use deionized water to disperse 100g inorganic mineral particles (200 mesh) and configure a concentration of 15wt% inorganic mineral particle slurry, wherein antimony trioxide and other hydroxides in the inorganic mineral particles The mass ratio is 1:5, and stearic acid is added after heating to 85°C in a water bath to configure a modified reaction solution with a stearic acid concentration of 6wt%, allowing it to react under 20Khz ultrasonic vibration for 45min, and then place it in a centrifuge Within 10 minutes, the condition of rotating speed of 8000 rpm was maintained to obtain modified inorganic mineral particles.

[0052] (2) Preparation of flame retardant: After mixing the modified inorganic mineral particles with 30g of tris(2-chloroethyl) phosphate, dilute with 200mL of acetone, let it react und...

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Abstract

The invention discloses a flame-retardant urea-formaldehyde resin adhesive and a preparation method thereof. The flame-retardant urea-formaldehyde resin adhesive comprises the following raw materials: formaldehyde, sodium hydroxide, urea, formic acid, melamine, cleaning water, oxidized starch, and a flame retardant. The preparation method comprises the following steps of (1) preparing inorganic mineral particles: modifying the surfaces of the inorganic mineral particles by using stearic acid, (2) preparing a flame retardant: mixing the modified inorganic mineral particles with tris (2-chloroethyl) phosphate in parts by weight to obtain the flame retardant, and (3) preparing the flame-retardant urea-formaldehyde resin adhesive: reacting formaldehyde, sodium hydroxide, urea, formic acid and melamine, adding the flame retardant, oxidized starch and clear water in parts by weight, keeping the high temperature of 80-90 DEG C, and stirring for 3 hours to obtain the urea-formaldehyde resin adhesive. The prepared flame-retardant urea-formaldehyde resin adhesive can obviously improve the dispersing performance of a flame retardant in urea-formaldehyde resin and enhance the flame-retardant effect of an artificial board, can be widely applied to the industrial field, and has extremely high application value in the fields of decoration and the like.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a flame-retardant urea-formaldehyde resin and a preparation method thereof. Background technique [0002] Urea-formaldehyde resin, abbreviated as UF, is an industrial adhesive with the advantages of low cost, wide source of raw materials, and low technical requirements. The cured urea-formaldehyde resin is light in color and translucent. It has the characteristics of acid and alkali resistance, and also has good performance in wear resistance. Due to its excellent properties, urea-formaldehyde resin has become the most widely used type of adhesive in wood-based panels and other fields at this stage, and its proportion can reach more than 90%. However, urea-formaldehyde resin has poor thermal stability and is easy to degrade at high temperature. Products such as particle boards and wooden boards produced by it are also accompanied by fire hazards during use. [0003] Therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/32C09J11/04C09J11/06C08G12/40C08G12/38
CPCC09J161/32C09J11/04C09J11/06C08G12/40C08G12/38C08K2003/2227C08K2003/2224C08K9/04C08K3/2279C08K3/22C08K5/521
Inventor 王德胜朱华伟王发勇
Owner 临沂德万家木业有限公司
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