Corrosion-resistant phenolic resin coating and preparation method thereof

A phenolic resin, corrosion-resistant technology, applied in the field of coatings, can solve the problems of inability to protect metal substrates, resource waste, loss, etc., and achieve the effects of good protection, improved flexibility, and strong corrosion resistance.

Active Publication Date: 2022-07-12
常熟东南塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Phenolic resins have been used in the field of coatings instead of natural resins for many years. The coatings prepared with them have good gloss, hardness, quick-drying, insulation, acid and alkali resistance, etc., so they are used in wood products, furniture, Machinery, shipbuilding, electrical and other fields have been widely used, but in relatively harsh corrosive environm...

Method used

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  • Corrosion-resistant phenolic resin coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 10.9 g (0.1 mol) of 4-hydroxybenzylamine as a reactant, 100 mL of DMF as a solvent, 1.5 eq (molar amount, relative to 4-hydroxybenzylamine) imidazole as a catalyst, and then add 1.5 eq (molar amount, relative to 4 -Hydroxybenzylamine) tert-butyldimethylsilyl chloride, react in a zero-degree ice-water bath for 4 h, remove the solvent, and purify by column chromatography to obtain A1.

[0027] 10 g A1 and 8 g polyacrylic acid (weight-average molecular weight of 450,000 g / mol, purchased from McLean) were used as reactants, 150 mL of THF was used as a solvent, and 4 g of 1-(3-dimethylaminopropyl)-3-ethyl were added Carbodiimide hydrochloride and 4 g N-hydroxysuccinimide were stirred and reacted for 4 h, filtered, and dissolved to obtain A2.

[0028] 18 g of A2 was used as the reactant, 100 mL of THF was used as the solvent, 6 g of tetrabutylammonium fluoride was added, the reaction was stirred for 4 h, and saturated NH was added. 4 Cl solution, extraction, desolvation, and...

Embodiment 2

[0033] The corrosion-resistant phenolic resin and epoxy acrylate were put into xylene, and dispersed by high-speed shearing to prepare dispersion B.

[0034] Add pentaerythritol, polyvinyl butyral, talc, glass powder, turpentine and hexamethylenetetramine into dispersion B, heat and stir to disperse, cool to room temperature and grind to obtain corrosion-resistant phenolic resin coating.

[0035] The amount of the above substances added is 100 parts of corrosion-resistant phenolic resin, 15 parts of epoxy acrylate, 10 parts of xylene, 4 parts of pentaerythritol, 5 parts of polyvinyl butyral, 3 parts of talcum powder, 3 parts of glass powder by mass ratio , 10 parts of turpentine, 18 parts of hexamethylenetetramine.

[0036] Epoxy acrylate (viscosity 42000mPa.s, purchased from Jinan Quanxing), polyvinyl butyral (weight average molecular weight 30000~45000g / mol, purchased from Shandong Xingqi Chemical, specification: 15s); glass powder purchased from Longsen, Japan; talc powder...

Embodiment 3

[0038] The corrosion-resistant phenolic resin and epoxy acrylate were put into xylene, and dispersed by high-speed shearing to prepare dispersion B.

[0039] Add pentaerythritol, polyvinyl butyral, talc, glass powder, turpentine and hexamethylenetetramine into dispersion B, heat and stir to disperse, cool to room temperature and grind to obtain corrosion-resistant phenolic resin coating.

[0040] The addition amounts of the above substances are 100 parts of corrosion-resistant phenolic resin, 20 parts of epoxy acrylate, 15 parts of xylene, 8 parts of pentaerythritol, 10 parts of polyvinyl butyral, 6 parts of talcum powder, 6 parts of glass powder by mass ratio , 15 parts of turpentine, 24 parts of hexamethylenetetramine.

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Abstract

The invention provides a corrosion-resistant phenolic resin coating and a preparation method thereof, and the preparation method comprises the following steps: adding corrosion-resistant phenolic resin and epoxy acrylate into xylene, and carrying out high-speed shearing dispersion to prepare a dispersion liquid B; adding pentaerythritol, polyvinyl butyral, talcum powder, glass powder, turpentine and hexamethylenetetramine into the dispersion liquid B, heating, stirring and dispersing, cooling to room temperature, and grinding to obtain the corrosion-resistant phenolic resin coating. Wherein the corrosion-resistant phenolic resin is synthesized from polyacrylic acid, 4-hydroxybenzylamine and formaldehyde. The corrosion-resistant phenolic resin has good thermal stability, and the prepared corrosion-resistant phenolic resin coating has good corrosion resistance, flexibility and impact resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a corrosion-resistant phenolic resin coating and a preparation method thereof. Background technique [0002] In the 1950s, phenolic resins began to be widely used in the industrial field and developed rapidly, and their applications have been extended to new fields, such as coatings, paints, aerospace, foundry and so on. During the global economic downturn at the end of the 20th century, even if nearly half of the phenolic resin industry's producers were shut down, the market consumption of phenolic resin was still more than 3 million tons. At the beginning of the 21st century, the outbreak of electronics, automobiles and other industries once again promoted the development of phenolic resin, and its output reached 4 million tons in 2006. The domestic research on phenolic resin was relatively late, and it was developed and formed a broad market in the 1980s, involving coatings,...

Claims

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Application Information

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IPC IPC(8): C09D161/14C09D163/10C09D129/14C09D5/08C09D7/61C08G8/28
CPCC09D161/14C09D5/08C09D7/61C08G8/28C08L63/10C08L29/14C08K3/34C08K3/40
Inventor 杨犁新崔惠民吴斌周凯荣赵质斌
Owner 常熟东南塑料有限公司
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