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Synthesis method and application of asparagine resin and water-based asparagine polyurea

A synthesis method and resin technology, applied in polyurea/polyurethane coatings, coatings, organic chemistry, etc., can solve the problems of low viscosity of aspartame resin

Active Publication Date: 2020-12-15
深圳飞扬兴业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the viscosity of aspartum resin is very low

Method used

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  • Synthesis method and application of asparagine resin and water-based asparagine polyurea
  • Synthesis method and application of asparagine resin and water-based asparagine polyurea
  • Synthesis method and application of asparagine resin and water-based asparagine polyurea

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of aspartame resin, as shown in following formula E1:

[0029]

[0030] The present invention provides the method for synthesizing waterborne polyurea with E1, specifically as follows:

[0031] Add 446 grams of E1 (1 mol) into the three-necked flask, add 100 mL of acetone, raise the temperature to 60° C., add 22.3 grams of sodium vinyl sulfonate dropwise into the above system, and react at this temperature for 8 hours. Evaporate the solvent, add 533 grams of IPDI to the above-mentioned aspartame resin and add it into the three-necked flask according to the metering, and stir at a high speed for 10 minutes; The waterborne polyurea aspartate that embodiment provides.

[0032] The solid content of the water-based aspartame obtained in this embodiment is 50%.

Embodiment 2

[0034] The present embodiment provides a kind of aspartame resin, as shown in following formula E2:

[0035]

[0036] The invention provides the method for synthesizing water-based aspartame with E2, specifically as follows:

[0037] Add 582 grams of E2 (1 mol) into the three-necked flask, add 200 mL of acetone, raise the temperature to 60° C., add 46.6 grams of potassium vinylsulfonate dropwise into the above system, and react at this temperature for 8 hours. Evaporate the solvent, add 403 grams of HDI to the above-mentioned aspartame resin and add it to the three-necked flask according to the metering, and stir at a high speed for 10 minutes; then add 661 grams of measured water to the three-necked flask to disperse and emulsify for 5 minutes to obtain a water-based polyurea emulsion. Examples of water-based aspartame provided.

[0038] The solid content of the water-based aspartame obtained in this embodiment is 60%.

Embodiment 3

[0040] The present embodiment provides a kind of aspartame resin, as shown in following formula E3:

[0041]

[0042] The invention provides the method for synthesizing water-based aspartame with E3, specifically as follows:

[0043] Add 554 g of E3 (1 mol) into the three-necked flask, add 300 mL of acetone, raise the temperature to 60° C., add 46.6 g of sodium vinyl sulfonate dropwise into the above system, and react at this temperature for 8 hours. Evaporate the solvent, add 418 grams of TDI to the above-mentioned aspartame resin and add it to the three-necked flask according to the metering, and stir at a high speed for 10 minutes; then add 1528 grams of measured water to the three-necked flask, disperse and emulsify for 5 minutes, and obtain a water-based polyurea emulsion, which is the implementation of the present invention. Examples of water-based aspartame provided.

[0044] The solid content of the water-based aspartame obtained in this embodiment is 40%.

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Abstract

The invention discloses a synthetic method and application of aspartic resin and water-based aspartic polyurea, and relates to the technical field of polyurea coatings. The asparagus cochinchinensis resin with the special structure provided by the invention can be used for preparing water-based asparagus cochinchinensis polyurea; according to the synthetic method of the water-based asparaginous polyurea, the asparaginous resin reacts with vinyl sulfonate, hydrophilic groups are introduced into the asparaginous resin, then the asparaginous resin reacts with a curing agent, and finally the water-based asparaginous polyurea is obtained. The water-based asparaginous polyurea provided by the invention overcomes the technical prejudice that traditional asparaginous polyurea cannot be made into water-based polyurea, can be applied to the field of coatings, and can play good advantages when applied to the application field needing thin coating, such as the condition that the coating is 60 microns or below.

Description

technical field [0001] The invention relates to the technical field of polyurea coatings, in particular to a synthesis method and application of aspartic resin and water-based aspartame polyurea. Background technique [0002] The polyurea system reacts quickly, and the reaction has the characteristics of energy saving and high efficiency. It is widely used in building waterproof, thermal insulation and anti-corrosion coatings. However, the current polyurea systems are mainly solvent-based or solvent-free two-component spray systems. [0003] Polyaspartate material is a new type of aliphatic, slow-response, high-performance coating material that has emerged in the polyurea industry in recent years, and is called the third-generation polyurea. Scientists have modified the polyurea system through a series of physical and chemical methods, and the developed aspartame polyurea has the characteristics of slow curing, super weather resistance, wear resistance, water resistance, ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/24C08G18/32C09D175/02
CPCC07C229/24C08G18/3857C09D175/02C07C2601/14
Inventor 熊东路龙绪俭陈林生杨轩鲁晓东徐涛肖增钧李斌仁许超平
Owner 深圳飞扬兴业科技有限公司