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A kind of ultraviolet curing resin and preparation method thereof

A technology of curing resin and ultraviolet light, which is applied in the field of coatings, can solve the problems of affecting adhesion, high price, and high price of finished coatings, and achieve the effect of high active ingredient content and low viscosity

Active Publication Date: 2017-10-13
中山大桥化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Poor heat resistance and flame retardancy;
[0006] (3) Poor weather resistance and yellowing;
[0007] (4) Since the UV-curable coating is cured instantly, the soaking time to the substrate is short, the volume shrinkage is high, and the adhesion is affected, so that the adhesion between the existing UV-curable coating and the substrate is poor;
[0008] (5) At present, raw materials such as high-performance UV resins and oligomers required for UV-curable coatings mainly rely on imports, and the prices are relatively high, resulting in higher prices for finished coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] According to the following steps to prepare UV-curable resin, the whole reaction process is protected by air.

[0035] (1) In a clean and dry reactor, put 300kg of tris(alkoxycarbonylamino)triazine compound (CYLINK 2000 from Cytec), 288kg of hydroxyethyl methacrylate, 0.57kg of p-methoxyphenol, 3.0kg of p-toluenesulfonic acid and 74.7kg of n-hexane, pass through dry air, discharge the original gas in the kettle, and then slowly raise the temperature to 60°C;

[0036] (2) Insulate for 6 hours to form an azeotrope between n-hexane and methanol generated in the reactant, so as to slowly remove methanol from the reaction system;

[0037] (3) After no obvious methanol is removed, keep aging at 60°C for 2 hours;

[0038] (4) Distill under reduced pressure to remove residual n-hexane in the system, take samples for testing, cool and package after the solid content and viscosity are within the acceptable range, and obtain bifunctional acrylic acid containing triazine ring and ...

Embodiment 2

[0040] According to the following steps to prepare UV-curable resin, the whole reaction process is protected by air.

[0041] (1) In a clean and dry reactor, put 300kg of tris(alkoxycarbonylamino)triazine compound (CYLINK 2000 from Cytec), 390kg of hydroxyethyl methacrylate, 0.78kg of hydroquinone, 3.0 kg of p-toluenesulfonic acid and 95kg of n-heptane, pass through dry air, discharge the original gas in the kettle, and then slowly raise the temperature to 100°C;

[0042] (2) Insulate for 6 hours to form an azeotrope between n-heptane and methanol generated in the reactant, so as to slowly remove methanol from the reaction system;

[0043] (3) After no obvious methanol is removed, keep aging at 100°C for 2 hours;

[0044] (4) Distill under reduced pressure to remove the residual n-heptane in the system, take samples for inspection, cool and pack after the solid content and viscosity are within the acceptable range, and obtain trifunctional triazine ring and carbamate structur...

Embodiment 3

[0046] According to the following steps to prepare UV-curable resin, the whole reaction process is protected by air.

[0047] (1) In a clean and dry reactor, put 300kg of tris(alkoxycarbonylamino)triazine compound (CYLINK 2000 from Cytec), 596kg of pentaerythritol triacrylate, 142kg of glycidyl methacrylate, 1.4kg2 , 6-di-tert-butyl-4-methylphenol, 3.0kg p-toluenesulfonic acid and 126.7kg cyclohexane, pass through dry air, discharge the original gas in the kettle, and then slowly heat up to 100°C;

[0048] (2) Insulate for 7 hours to form an azeotrope between cyclohexane and methanol generated in the reactant, so as to slowly remove methanol from the reaction system;

[0049] (3) After no obvious methanol is removed, keep aging at 100°C for 3 hours;

[0050] (4) Distill under reduced pressure to remove the residual cyclohexane in the system, take samples for inspection, cool and pack after the solid content and viscosity are within the acceptable range, and obtain the heptafu...

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Abstract

The invention belongs to the field of coatings and discloses an ultraviolet curable resin, which consists of 25-50 parts of tris(alkoxycarbonylamino)triazine compound, 20-103 parts of hydroxyl-containing acrylate monomer, 0 parts by weight. It is formed by reacting ~30 parts of acrylate monomer containing epoxy group, 0.05~0.2 parts of polymerization inhibitor, 0.2~0.5 parts of catalyst and 10~30 parts of alkane solvent. The invention also discloses a preparation method of the ultraviolet curable resin. The product of the present invention has a triazine ring structure, a carbamate structure and an acrylate structure, and has the characteristics of low viscosity, high active ingredient content, high hardness, and high wear resistance; Development of UV-curable coating products with various grades of hardness.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to an ultraviolet light curing resin and a preparation method thereof. Background technique [0002] UV curing technology is an advanced technology for curing high-performance polymer coatings. It uses ultraviolet light energy as a catalyst to directly react with the components of the coating and solidify to form a high-performance polymer. [0003] With the increasing improvement of the world's environmental protection regulations and the increasing requirements for environmental protection, traditional solvent-based coatings have been greatly impacted by VOC emissions, and their market share is rapidly shrinking. UV-curable coatings and water-based coatings with environmental protection characteristics , high solids coatings and powder coatings are growing rapidly. Among them, UV-curable coatings are developing rapidly because of their advantages such as fast curing speed, high production...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/28C08F220/28C08F220/32C08F8/30C08F6/10
Inventor 王明晶吕诚业李永文
Owner 中山大桥化工集团有限公司