Brush-making structural adhesive and preparation method thereof

A structural adhesive, the technology of Group A, applied in chemical instruments and methods, preparation of organic compounds, preparation of aminohydroxy compounds, etc., can solve the problems of high strength and toxicity of the cured products of brush-making structural adhesives, and achieve the goal of eliminating human harm, The effect of reducing damage

Inactive Publication Date: 2010-11-24
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of high strength and toxicity of the cured product of the brush-making structural adhesive in the prior art, the present invention provides a brush-making structural adhesive and a preparation method thereof, which have the advantages of low cost, low toxicity and environmental protection, convenient operation, strong adhesion, etc. features

Method used

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  • Brush-making structural adhesive and preparation method thereof
  • Brush-making structural adhesive and preparation method thereof
  • Brush-making structural adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Step 1: Put a certain amount of phenol in the reaction flask, add diethylenetriamine at a molar ratio of 1:2.0 to 2.5, raise the temperature to 40-50°C, start stirring, and add formaldehyde with a molar ratio of 1:2 to phenol dropwise, Control the temperature rise rate, no more than 80°C, reflux reaction for 0.5-1h, raise the temperature to 110-120°C, dehydrate and reflux reaction for 2-4 hours, until no water flows out of the receiver, cool down to 80°C, add the equivalent of the total dosage 20% amine value is 220mg·g -1 Dimer acid polyamide curing agent, stirred for 0.5 hours, filtered to obtain an amber low-viscosity liquid, which was used as component B of brush-making structural adhesive.

[0062] Step 2: Put a certain amount of soybean oil dimer acid in the reaction bottle, add butanediol glycidyl ether at a molar ratio of 1:2.5~3, raise the temperature to 120°C~140°C, start stirring, and add the equivalent amount of soybean oil Dimer acid mass 0.2% liquid N, N-...

Embodiment 2

[0066] Step 1: Put a certain amount of phenol in the reaction flask, add triethylenetetramine at a molar ratio of 1:2.0~2.5, raise the temperature to 40~50°C, start stirring, and dropwise add acetaldehyde with a molar ratio of 1:2 to phenol , control the heating rate, not exceeding 80°C, reflux for 0.5-1h, heat up to 110-120°C, dehydrate and reflux for 2-4 hours, until no water flows out of the receiver, cool down to 80°C, add the equivalent reactant The amine value of 20% of the total dosage is 220mg·g -1 Cottonseed oil dimer acid polyamide curing agent, stirred for 0.5 hours, filtered to obtain an amber low-viscosity liquid, which was used as component B of brush-making structural adhesive.

[0067] Step 2: Put a certain amount of cottonseed oil dimer acid in the reaction bottle, add neopentyl glycol glycidyl ether at a molar ratio of 1:2.5~3, raise the temperature to 120°C~140°C, start stirring, and add the equivalent amount of cottonseed Oil dimer acid mass 0.2% liquid N,...

Embodiment 3

[0071] Step 1: Put a certain amount of phenol in the reaction flask, add tetraethylenepentamine at a molar ratio of 1:2.0~2.5, raise the temperature to 40~50°C, start stirring, and add propionaldehyde in a molar ratio of 1:2 to phenol , control the heating rate not to exceed 80°C, reflux reaction for 0.5~1h, heat up to 110~120°C, dehydrate and reflux for 2~4 hours, until no water flows out of the receiver, cool down to 80°C, add the equivalent of the total dosage 20% amine value is 220mg·g -1 Tung oil dimer acid polyamide curing agent, stirred for 0.5 hours, filtered to obtain an amber low-viscosity liquid, which was used as component B of brush-making structural adhesive.

[0072] Step 2: Put a certain amount of tung oil dimer acid in the reaction bottle, add diethylene glycol glycidyl ether in a molar ratio of 1:2.5~3, raise the temperature to 120°C~140°C, start stirring, and add equivalent to tung oil dimer acid Acid quality 0.2% liquid N,N-dimethylaniline catalyst, closed...

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Abstract

The invention discloses a brush-making structural adhesive and a preparation method thereof. The brush-making structure adhesive is prepared by compounding raw materials such as a component A and a component B in a mass ratio of 100:20 to 30, wherein the component A comprises the following components in part by mass: 100 parts of epoxy resin 128, 10 to 30 parts of flexible epoxy resin, 5 to 20 parts of environmentally-friendly biological plasticizer and 80 to 100 parts of inorganic packing; and the component B comprises the following components in part by mass: 80 parts of phenolic aldehyde amine and 20 parts of dimer acid polyamide, and the phenolic aldehyde amine is a reaction product of phenyl hydroxide, polyamine and organic aldehyde. The brush-making structural adhesive prepared by the method is mainly used for brush manufacturing industries taking bristles as main bodies of brushes, has the characteristics of low cost, low toxicity, environmental protection, convenient operation, high adhesive force and the like, and has a wide industrial application prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a production method of brush-making structural glue Background technique [0002] In my country's sundries production industry, the brush industry is a large category; according to incomplete statistics, 90% of the world's various brush products come from China. my country exports 2 to 3 billion brushes of various types to foreign countries every year, and generates foreign trade income of 1 to 2 billion US dollars. It is one of the main foreign exchange generating industries in my country. A key technology of the brush production line is glue filling; various types of silk wool must be bonded together and have a certain strength, and at the same time must be closely combined with tinplate to become a qualified brush. However, due to various reasons, many brush-making companies still use solvent-based adhesives that are harmful to both the environment and the human body, such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J163/02C09J11/06C08G59/02C07C215/52C07C213/02
Inventor 聂小安夏建陵万厉杨小华林贵福
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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