A kind of itaconic acid-based water-based UV resin and preparation method thereof

An itaconic acid-based water-based and aconic acid-based water-based technology, applied in polyester coatings, coatings and other directions, can solve the problems of complex preparation process, unfavorable wide application, relatively expensive isocyanate, etc., and achieve high biomass content and cost. Low, short process effect

Active Publication Date: 2018-07-20
HUARONG COUNTY HENGXING BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has fast resin curing speed and good coating performance, the preparation process is complicated, and water should be avoided during the preparation process to prevent the hydrolysis of isocyanate. In addition, isocyanate is expensive, which is not conducive to wide application.

Method used

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  • A kind of itaconic acid-based water-based UV resin and preparation method thereof
  • A kind of itaconic acid-based water-based UV resin and preparation method thereof
  • A kind of itaconic acid-based water-based UV resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) According to the raw materials and dosage of Example 1 in Table 1, add itaconic acid, 1,4-butanediol, glycerin, epoxy acrylate, p-toluenesulfonic acid and p-hydroxyanisole into the three-necked bottle, and Protected with nitrogen, heated to 130°C for 1 hour, then depressurized to a vacuum of 0.02MPa for dehydration until anhydrous was formed, then cooled to 70°C to obtain a precondensed polymer;

[0047] (2) According to the raw materials and dosage of Example 1 in Table 1, add dibutyltin dilaurate and triphenyl phosphite to the precondensed polymer obtained in step (1), and depressurize to a vacuum of 0.09MPa. After heating to 140°C and reacting for 4 hours, cool down to 80°C, then add triethylamine, and finally add water, and stir evenly to obtain itaconic acid-based water-based UV resin.

[0048] After testing, the pH value of the obtained itaconic acid-based water-based UV resin product was 7.4, and the solid content was 81%.

[0049] Depend on figure 1 It can...

Embodiment 2

[0051] (1) According to the raw materials and dosages of Example 2 in Table 1, add itaconic acid, 1,4-butanediol, glycerin, epoxy acrylate, sulfuric acid and p-hydroxyanisole into a three-necked bottle, and pass through nitrogen protection , heated to 125°C for 1.5h, then depressurized to a vacuum of 0.03MPa for dehydration until anhydrous was formed, then cooled to 70°C to obtain a precondensed polymer;

[0052] (2) According to the raw materials and dosage of Example 2 in Table 1, add dibutyltin dilaurate and diphenyl phosphite to the precondensed polymer obtained in step (1), and under the condition of decompression to a vacuum of 0.1MPa, After heating to 140°C and reacting for 3 hours, cool down to 80°C, then add triethylamine, and finally add water, and stir evenly to obtain itaconic acid-based water-based UV resin.

[0053] After testing, the pH value of the obtained itaconic acid-based water-based UV resin product was 7.1, and the solid content was 81%.

Embodiment 3

[0055] (1) According to the raw materials and dosage of Example 3 in Table 1, add itaconic acid, 1,4-butanediol, glycerin, epoxy acrylate, p-toluenesulfonic acid and p-tert-butylcatechol into the three-necked bottle, Introduce nitrogen protection, heat to 135°C to react for 1 hour, then depressurize to a vacuum of 0.02MPa to react and dehydrate until anhydrous is formed, then cool to 60°C to obtain a precondensed polymer;

[0056] (2) According to the raw materials and dosage of Example 3 in Table 1, add ethylene glycol antimony and triphenyl phosphite to the precondensed polymer obtained in step (1), and heat under the condition of decompression to a vacuum degree of 0.09MPa After reacting at 150°C for 3 hours, lower the temperature to 65°C, then add triethylamine, and finally add water, and stir evenly to obtain itaconic acid-based water-based UV resin.

[0057] After testing, the pH value of the obtained itaconic acid-based water-based UV resin product was 7.0, and the soli...

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Abstract

The invention discloses itaconic acid based water-base UV resin and a preparation method of the resin. The resin comprises itaconic acid, dibasic alcohol, glycerol, epoxy acrylate, an esterification catalyst, a polymerization inhibitor, a polycondensation catalyst, a stabilizer, a neutralizer and water. The method comprises the following steps: (1) itaconic acid, dibasic alcohol, glycerol, epoxy acrylate, the esterification catalyst and the polymerization inhibitor are added to a container; nitrogen is supplied for protection; heating is performed; a pressure reduction reaction is performed; dehydration is performed until no water is generated; cooling is performed to obtain a prepolymerization product; (2) the polycondensation catalyst and the stabilizer are added; a heating reaction is performed under a pressure reduction condition; cooling is performed; the neutralizer is added; finally the water is added. The itaconic acid based water-base UV resin is light in appearance color, high in film curing speed, high in rigidity, good in adhesion, good in water resistance, high in biomass content, wide in application, green and environment-friendly. The method is simple in technology, short in flow, low in cost and solvent-free.

Description

technical field [0001] The invention relates to a resin and a preparation method thereof, in particular to an epoxy acrylate copolymerized modified itaconic acid-based water-based UV resin and a preparation method thereof. Background technique [0002] UV curing coatings have been widely used in printing, packaging, advertising, building materials, electronics and other fields due to their advantages of fast curing, energy saving, environmental protection, economy, and wide applicability. However, due to the high viscosity of the oligomers in the traditional UV-curable coatings, it affects the construction and use. For this reason, it is necessary to add a small molecule reactive diluent to reduce the viscosity of the system, such as HDDA, PETA, TMTA, etc. However, these Reactive diluents usually have strong irritation and certain toxicity, and cannot be completely cured during the curing process, and will migrate out during subsequent use, which also affects the safety of U...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/676C09D167/06
CPCC08G63/676C09D167/06
Inventor 兰支利李皞丹戴伟凯戴尚衡柳红霞
Owner HUARONG COUNTY HENGXING BUILDING MATERIALS CO LTD
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