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Preparation method of boronized furan resin

A furan resin and boronization technology, applied in the direction of coating, can solve the problems of reduced mechanical strength of paint film, poor adhesion of substrates, etc., and achieves the effects of good fluidity, difficult gel curing, and mild and easy-to-control production process.

Inactive Publication Date: 2020-09-29
山东永创材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Furan resin is widely used in high-temperature resistant anti-corrosion coatings, high-temperature insulating coatings, high-temperature-resistant fireproof and heat-insulating flame-retardant coatings, etc., but furan resin has poor adhesion to the substrate and the mechanical strength of the paint film decreases when the temperature is high, so its application is limited. Certain restrictions, in addition, its wear resistance, high temperature resistance, curing activity, corrosion resistance, wear resistance, etc. still need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of borated furan resin, comprising the following steps:

[0029] (1) Add solid formaldehyde and half of furfuryl alcohol into the reaction kettle, stir and mix, add boric acid, and adjust the pH value to 4.5-6 with benzoic acid;

[0030] (2) Add the catalyst zinc acetate under the above-mentioned acidic conditions, carry out the catalytic reaction at 130-150° C., and keep the temperature for 2 hours to obtain the polymer;

[0031] (3) Add the remaining other half of furfuryl alcohol, benzoic acid and maleic anhydride, adjust the pH to 3.0-3.5, react at 130-135°C, and keep warm for 2.5 hours;

[0032] (4) adding sodium hydroxide solution to adjust the pH to be 7-8, adding methanol, aldehyde removing agent, coupling agent after cooling down, stirring and mixing evenly;

[0033] (5) Adjust the pH value to neutrality, continue to stir and discharge to obtain the product.

[0034] In parts by weight, the parts by weight of the raw materials in each of ...

Embodiment 2

[0040] A preparation method of borated furan resin, comprising the following steps:

[0041] (1) Add solid formaldehyde and half of furfuryl alcohol into the reaction kettle, stir and mix, add boric acid, and adjust the pH value to 4.5-6 with benzoic acid;

[0042] (2) Add the catalyst zinc acetate under the above-mentioned acidic conditions, carry out the catalytic reaction at 130-150° C., and keep the temperature for 2 hours to obtain the polymer;

[0043] (3) Add the remaining other half of furfuryl alcohol, benzoic acid and maleic anhydride, adjust the pH to 3.0-3.5, react at 130-135°C, and keep warm for 2.5 hours;

[0044] (4) adding sodium hydroxide solution to adjust the pH to be 7-8, adding methanol, aldehyde removing agent, coupling agent after cooling down, stirring and mixing evenly;

[0045] (5) Adjust the pH value to neutrality, continue to stir and discharge to obtain the product.

[0046] In parts by weight, the parts by weight of the raw materials in each of ...

Embodiment 3

[0052] A preparation method of borated furan resin, comprising the following steps:

[0053] (1) Add solid formaldehyde and half of furfuryl alcohol into the reaction kettle, stir and mix, add boric acid, and adjust the pH value to 4.5-6 with benzoic acid;

[0054] (2) Add the catalyst zinc acetate under the above-mentioned acidic conditions, carry out the catalytic reaction at 130-150° C., and keep the temperature for 2 hours to obtain the polymer;

[0055] (3) Add the remaining other half of furfuryl alcohol, benzoic acid and maleic anhydride, adjust the pH to 3.0-3.5, react at 130-135°C, and keep warm for 2.5 hours;

[0056] (4) adding sodium hydroxide solution to adjust the pH to be 7-8, adding methanol, aldehyde removing agent, coupling agent after cooling down, stirring and mixing evenly;

[0057] (5) Adjust the pH value to neutrality, continue to stir and discharge to obtain the product.

[0058] In parts by weight, the parts by weight of the raw materials in each of ...

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PUM

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Abstract

The invention discloses a preparation method of boronized furan resin, belonging to the technical field of furan resin production. The preparation method comprises the following steps that: furan resin is used as a carbon source, and boronic acid is added for boronation so as to obtain boronized furan resin. According to the invention, the doped boric acid can effectively improve the graphitization degree of the furan resin, so the wear resistance, thermal shock resistance and shock absorption of the furan resin are improved, the fatigue resistance, creep resistance, corrosion resistance and wear resistance of the furan resin are better, a thermal expansion coefficient of the furan resin is smaller, and the furan resin has more excellent high-temperature resistance and very high curing activity; and by improving raw materials and the preparation method, the process of production is mild and easy to control, gel curing is not easily to occur, a synthesis route is simple, operation is easy, dehydration is not required, and wastewater is not generated.

Description

technical field [0001] The invention relates to the technical field of furan resin production, in particular to a preparation method of boronated furan resin. Background technique [0002] Furan resin has the characteristics of high strength at room temperature, good toughness, and low toxicity, and the raw materials are easily available and cheap. It is one of the most widely used resins. In the production process of furan resin, the raw materials include formaldehyde, furfuryl alcohol, urea and auxiliary additives. The process links in the production process have a significant impact on the utilization rate and polymerization state of the raw materials, and also affect the performance of the product, including the viscosity of the molding sand. The influence of junction strength, collapse and casting environment protection is very significant. [0003] Furan resin is widely used in high-temperature resistant anti-corrosion coatings, high-temperature insulating coatings, h...

Claims

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Application Information

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IPC IPC(8): C08G16/04C08G16/02C08K5/544C09D161/00
CPCC08G16/0262C08G16/04C08K5/544C09D161/00
Inventor 刘萌孙志勇潘月宝侯学臻孙笃新
Owner 山东永创材料科技有限公司
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