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Novel ultraviolet-cured resin having triazine ring and preparation method thereof

A technology for curing resins and triazine rings, which is applied in the field of new UV-curable resins containing triazine rings and its preparation, which can solve the problems of poor weather resistance and yellowing, insufficient hardness and flexibility, and high price of finished coatings And other problems, to achieve the effect of high hardness, good heat resistance, low viscosity

Inactive Publication Date: 2012-12-12
同宇新材料(广东)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The hardness and flexibility are not good enough, and the general hardness can only reach 1H to 3H;
[0004] (2) Poor heat resistance and flame retardancy;
[0005] (3) Weather resistance and yellowing are not good;
[0006] (4) Due to the instantaneous curing of UV-curable coatings, the infiltration time to the substrate is short, which affects the adhesion, and the adhesion between the existing UV-curable coatings and the substrate is not good enough;
[0007] (5) At present, raw materials such as high-performance UV resins, oligomers, and various diluent monomers required for UV-curable coatings mainly rely on imports, and the prices are relatively high, resulting in high prices for finished coatings

Method used

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  • Novel ultraviolet-cured resin having triazine ring and preparation method thereof
  • Novel ultraviolet-cured resin having triazine ring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. In a clean and dry reaction kettle, put 180 kg of difunctional isocyanurate acrylate (ICDA) containing triazine ring, 150 kg of pentaerythritol triacrylate (PETA), and polyhexyl dipentaerythritol pentaacrylate in sequence. (DPHA) 200 kg, p-methoxyphenol 0.6 kg, stannous octoate 0.1 kg and butyl acetate 80 kg, then slowly raise the temperature to 60°C in about 1 hour;

[0032] 2. Put 100 kg of isophorone diisocyanate (IPDI) into a clean and dry high-level tank, and put it into the reaction kettle at a constant speed for 1 hour, during which the temperature is controlled at 55°C;

[0033] 3. After the dropwise addition is completed, keep warm for 1 hour, then raise the temperature to 90°C for 0.5 hours, and keep warm for 3 hours;

[0034] 4. Sampling test, when the isocyanate content (NCO%) is less than 0.5%, and the viscosity is 100mPa·s / 25℃, then react at constant temperature for 3 hours;

[0035] 5. Add 100 kg of hexahydrophthalimide hydroxyethyl acrylate (HHPIEA),...

Embodiment 2

[0039] 1. In a clean and dry reaction kettle, put 150 kg of difunctional isocyanurate acrylate (ICDA) containing triazine ring, 200 kg of pentaerythritol triacrylate (PETA), polyhexyl dipentaerythritol pentaacrylate (DPHA) 180 kg, hydroquinone 0.7 kg, dibutyltin dilaurate 0.08 kg and butyl acetate 70 kg, then slowly raise the temperature to 55°C in about 1 hour;

[0040] 2. Put 90 kg of isophorone diisocyanate (IPDI) into a clean and dry high-level tank, and put it into the reaction kettle at a constant speed for 2 hours, during which the temperature is controlled at 55°C;

[0041] 3. After the dropwise addition is completed, keep warm for another 2 hours, then raise the temperature to 80°C for 0.5 hours, and keep warm for another 5 hours;

[0042] 4. Sampling test, when the isocyanate content (NCO%) is less than 0.5%, and the viscosity is 100mPa·s / 25℃, then react at constant temperature for 3 hours;

[0043] 5. Add 100 kg of hexahydrophthalimide hydroxyethyl acrylate (HHPIEA...

Embodiment 3

[0047] 1. In a clean and dry reaction kettle, put 220 kg of difunctional isocyanurate acrylate (ICDA) containing triazine ring, 200 kg of pentaerythritol triacrylate (PETA), and polyhexyl dipentaerythritol pentaacrylate in sequence. (DPHA) 230 kg, copper sulfate 0.8 kg, stannous octoate 0.12 kg and butyl acetate 80 kg, then slowly raise the temperature to 50°C in about 1 hour;

[0048] 2. Put 100 kg of isophorone diisocyanate (IPDI) into a clean and dry high-level tank, and put it into the reaction kettle at a constant speed for 1.5 hours, during which the temperature is controlled at 58°C;

[0049] 3. After the dropwise addition is completed, keep warm for 1-2 hours, then raise the temperature to 86°C for 0.5 hours, and keep warm for 4 hours;

[0050] 4. Sampling test, when the isocyanate content (NCO%) is less than 0.5%, and the viscosity is 150mPa·s / 25℃, then react at constant temperature for 3 hours;

[0051] 5. Add 120 kg of hexahydrophthalimide hydroxyethyl acrylate (HH...

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Abstract

The invention discloses a novel isocyanurate modified ultraviolet-cured resin having a triazine ring, low viscosity and multifunctionality and a preparation method thereof. The preparation method comprises the following steps: carrying out a reaction on bifunctional isocyanuric acrylate and at least one diisocyanate monomer, one thermoplastic acrylic resin containing an amide group, cyclohexanedicarboximide hydroxyethyl acrylate and at least one active diluent so as to obtain the ultraviolet-cured resin. The ultraviolet-cured resin disclosed by the invention has the advantages of low viscosity, fast curing speed, high hardness, good abrasion resistance, good adhesive force and good chemical resistance as well as good heat resistance, weather resistance and fire resistance.

Description

technical field [0001] The invention relates to an ultraviolet light curing resin, in particular to a novel ultraviolet light curing resin containing a triazine ring and a preparation method thereof. Background technique [0002] Due to the rapid development of science and technology, UV curing coatings for plastics with promising market prospects have become one of the focuses of research and development in the coatings industry. Ultraviolet (UV) curing technology is a new green technology developed in the 1960s. Based on the unique curing mechanism and raw material characteristics of UV curing coatings, its products are non-toxic and environmentally friendly, energy-saving and efficient, wear-resistant and scratch-resistant, and extremely durable. It has outstanding features such as decorative effects, conforms to the "5E" principle, and is especially suitable for assembly line operations. The development of its market has been increasing at a rate of more than 25% per yea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/00C08F222/22C09D4/02C09D4/06
Inventor 雷昭友邹发泽郑业梅李大江
Owner 同宇新材料(广东)股份有限公司
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