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Preparation method of high-heat-resistance thermally-bendable rosewood binder

A technology with high heat resistance and adhesive, applied in the direction of adhesive, adhesive type, polyurea/polyurethane adhesive, etc., can solve the problems of glue opening, adhesive heat resistance and poor flexibility, etc. Achieve the effect of alleviating dependence, storage stability and good adhesion

Active Publication Date: 2021-05-14
佛山市三水日邦化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high density, hard and delicate texture of mahogany, it is not easy to be penetrated during the gluing process. In this way, when making panels and other products, the phenomenon of glue opening will occur when the panels are glued due to the low gluing strength; in addition, during the splicing process of mahogany materials , there are also problems such as poor heat resistance and flexibility of the adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of a kind of highly heat-resistant heat-bendable mahogany adhesive proposed by the present invention comprises the following steps:

[0021] S1, adding carbon nanotubes after mixed acid oxidation treatment to silica sol (SiO 2 content of 30%), ultrasonically dispersed, dried at 60°C, ground, and calcined at 220°C for 40 minutes to obtain a composite material; Ethanol solution, stirred and reacted at 40°C for 5h, washed, and dried to obtain a modified carbon nanotube composite material; wherein, SiO in carbon nanotubes and silica sol 2 The weight ratio of carbon nanotubes and γ-(2.3 glycidoxy)propyltrimethoxysilane is 1:1;

[0022] S2. Mix diisocyanate, polymerization inhibitor, amine catalyst and modified carbon nanotube composite material, stir and react to obtain modified diisocyanate; wherein, diisocyanate is composed of isophorone diisocyanate and tetramethylbenzene diisocyanate Methylene diisocyanate is compounded according to the weight pe...

Embodiment 2

[0026] The preparation method of a kind of highly heat-resistant heat-bendable mahogany adhesive proposed by the present invention comprises the following steps:

[0027] S1, adding carbon nanotubes after mixed acid oxidation treatment to silica sol (SiO 2 content of 30%), ultrasonically dispersed, dried at 65°C, ground, and calcined at 270°C for 30 minutes to obtain a composite material; Ethanol solution, stirred and reacted at 50°C for 3h, washed, and dried to obtain a modified carbon nanotube composite material; wherein, SiO in carbon nanotubes and silica sol 2 The weight ratio of carbon nanotubes and γ-(2.3 glycidoxy)propyltrimethoxysilane is 1:1.4;

[0028] S2. Mix diisocyanate, polymerization inhibitor, amine catalyst and modified carbon nanotube composite material, stir and react to obtain modified diisocyanate; wherein, diisocyanate is composed of isophorone diisocyanate and tetramethylbenzene diisocyanate Methylene diisocyanate is compounded according to the weight ...

Embodiment 3

[0032] The preparation method of a kind of highly heat-resistant heat-bendable mahogany adhesive proposed by the present invention comprises the following steps:

[0033] S1, adding carbon nanotubes after mixed acid oxidation treatment to silica sol (SiO 2 content of 30%), ultrasonically dispersed, dried at 65°C, ground, and calcined at 240°C for 30 minutes to obtain a composite material; ethanol solution, stirred and reacted at 45°C for 4h, washed, and dried to obtain a modified carbon nanotube composite material; wherein, SiO in carbon nanotubes and silica sol 2 The weight ratio of carbon nanotubes and γ-(2.3 glycidoxy)propyltrimethoxysilane is 1:1.2;

[0034]S2. Mix diisocyanate, polymerization inhibitor, amine catalyst and modified carbon nanotube composite material, stir and react to obtain modified diisocyanate; wherein, diisocyanate is composed of isophorone diisocyanate and tetramethylbenzene diisocyanate Methylene diisocyanate is compounded according to the weight p...

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PUM

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Abstract

The invention discloses a preparation method of a high-heat-resistance thermally-bendable rosewood binder, and relates to the technical field of binders. The preparation method comprises the following steps: adding carbon nanotubes subjected to mixed acid oxidation treatment into silica sol, carrying out ultrasonic dispersion, drying, grinding and calcining, then adding into a gamma-(2.3 epoxypropoxy) propyltrimethoxysilane ethanol solution, and performing stirring reaction to obtain a modified carbon nanotube composite material; mixing diisocyanate, a polymerization inhibitor, an amine catalyst and the modified carbon nanotube composite material, and performing stirring reaction to obtain modified diisocyanate; mixing the modified diisocyanate, diisocyanate and an initiator, and performing stirring reaction to obtain a diisocyanate prepolymer; and mixing the diisocyanate prepolymer, methacrylate, hydroxyl polyol, dibutyltin dilaurate, pigment filler, an auxiliary agent and a solvent, and performing stirring reaction to obtain the binder. The binder is used for bonding in rosewood processing, is firm in bonding force, can be used for bonding, shaping and bending small pieces of wood, and is resistant to bending and free of cracking.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a preparation method of a highly heat-resistant and heat-bendable mahogany adhesive. Background technique [0002] Adhesives are one of the essential materials in the development of modern industry, and bonding technology plays an important role in various fields of modern national economy. Polyurethane adhesives refer to adhesives containing carbamate groups (-NHCOO-) or isocyanate groups (-NCO) in the molecular chain, which are highly active and polar, and are compatible with various materials such as foam plastics. Porous materials such as wood, leather, fabric, paper, ceramics, and materials with smooth surfaces such as metal, glass, rubber, and plastic have excellent chemical adhesion. In addition, polyurethane adhesives also have good toughness and can be adjusted. properties, simple bonding process, excellent low temperature resistance and excellent stability. It is pr...

Claims

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Application Information

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IPC IPC(8): C09J175/16C08G18/78C08G18/77C08G18/02C08G18/79C08G18/67C08G18/42C08G18/48
CPCC09J175/16C08G18/7843C08G18/778C08G18/02C08G18/79C08G18/672C08G18/4018C08G18/4854C08G18/4208C08G18/40
Inventor 朱志方朱嘉伟朱同武朱立芳
Owner 佛山市三水日邦化工有限公司
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