UV skin-feeling wood coating as well as preparation method and application thereof

A wood coating and skin-feeling technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of high one-time investment cost, high operating cost and insufficient flatness of excimer lamp curing technology, and improve the delicate hand feeling. , Improve the curing speed, the effect of high activity

Pending Publication Date: 2021-07-16
JIANGSU LITIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, excimer lamp curing technology equipment has high one-time investment costs and high operating costs, and can only process flat products (if the flatness of the large board is not enough, there will be defective products)
In addition, the standard working time of the excimer lamp is 3000 hours, and it is easy to be damaged due to improper maintenance. The price of an imported light source is 50,000-70,000 RMB (different brands will have differences)

Method used

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  • UV skin-feeling wood coating as well as preparation method and application thereof
  • UV skin-feeling wood coating as well as preparation method and application thereof
  • UV skin-feeling wood coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In a 1000mL four-necked flask, 750 grams of polycaprolactone diol (Perstorp CAPA2302, molecular weight 3000), 70.5 grams (0.5mol) of ethyl isocyanate acrylate, 0.12 grams of dibutyltin dilaurate as a catalyst, and parahydroxyl Take 0.8 g of anisole, slowly heat up to 80°C-85°C for 0.5-4 hours, heat-retain, stir and react for 3-5 hours, and discharge the material to obtain a bifunctional polycaprolactone urethane acrylate with the structure shown in the following formula.

[0067]

[0068] R is: 1,4-butylene (-CH 2 CH 2 CH 2 CH 2 -), that is, the glycol initiator in the polycaprolactone diol is 1,4-butanediol;

[0069] a+b=(3000-90) / 114=25.5263.

Embodiment 2

[0071] In the 6L autoclave, drop into 1340 grams of 2,2-dimethylol propionic acid (C 5 h 10 o 4 , molecular weight 134), 40 grams of sodium formate, warming up to 155 ° C, began to drop ethylene oxide ( Molecular weight 44) 2200 grams for reaction, temperature control 155 ℃ ~ 165 ℃, pressure 0.10 ~ 0.40MPa, dropwise for 3 to 4 hours, after the drop is completed, 155 ℃ ~ 165 ℃ for 2 to 3 hours, and then cooled to below 80 ℃ , discharging to get the crude product; the crude product was added 40 grams of activated clay and stirred for 30 minutes, and filtered to obtain clear and transparent trihydroxy polyether ester (C 15 h 30 o 9 , molecular weight 354) 3469.2 grams, reaction formula, structure as shown in the following formula, wherein: n=2, a+b+c=5.

[0072]

[0073] In the 3000mL four-necked flask, drop into trihydroxy polyether ester (C 15 h 30 o 9 , molecular weight 354) 177 grams, IPDI 333 grams (1.5mol), catalyst dibutyltin dilaurate 0.2 grams, be warming up ...

Embodiment 3

[0082] In a 2000mL four-necked flask, 1000 grams of polyether modified polysiloxane (Zhejiang Xin'an Chemical Industry Group Co., Ltd., a special organic silicon product for UV resin modification, model: 7520, molecular weight 2000), and 141 grams of isocyanate ethyl acrylate ( 1mol), catalyst dibutyltin dilaurate 0.12 grams, polymerization inhibitor p-hydroxyanisole 0.9 grams, 0.5 ~ 4 hours slowly warming up to 80 ℃ ~ 85 ℃ stirring reaction for 3 ~ 5 hours, discharging, obtained 2 functional Polysiloxane type urethane acrylate.

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Abstract

The invention discloses a UV skin-feeling wood coating which comprises the following raw materials in parts by weight: 10-40 parts of UV cured resin, 50-80 parts of a reactive diluent, 0.1-5 parts of a functional aid, 1-10 parts of functional filler and 1-10 parts of a photoinitiator; wherein the UV curing resin is a combination of 2-functionality elastic polyurethane acrylate, 2-functionality polysiloxane type polyurethane acrylate and 6-functionality polyurethane acrylate, and the reactive diluent is a combination of polyethylene glycol (200) diacrylate and ethyoxyl ethyoxyl ethyl acrylate. The invention further discloses application of the UV skin-feeling wood coating in preparation of wood finishing paint. According to the invention, the UV skin-feeling wood coating is coated on woodware, and the coating of the skin-touch paint can be realized and the skin-touch effect can be generated by curing by using an ultraviolet curing machine; the paint film is good in adhesive force, soft, smooth, fine, comfortable, good in skin-touch effect, low in cost and free of pollution.

Description

technical field [0001] The invention belongs to the field of UV coatings, and relates to a UV (ultraviolet light curing) skin-sensitive wood coating and its preparation method and application, in particular to a type of polyurethane based on 2-functionality elastic polyurethane acrylate and 2-functionality polysiloxane A UV skin-sensitive wood coating composed of acrylate and six-functional polyurethane acrylate, its preparation method and application. Background technique [0002] Skin-feeling furniture originated in Italy. It is named after the paint film feels like a baby's skin. It is known as "the blue-blooded aristocrat in luxury goods". In recent years, skin-feeling effects have rapidly become popular in China, and skin-feeling effects have become a new trend in furniture coating. Especially in the field of high-end customization, skin-feeling effects are regarded as the golden partner of light luxury custom furniture, and skin-feeling paints have naturally become a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14
CPCC09D175/14C08L2205/03C08L2205/025C08L75/14
Inventor 胡剑飞付鹏志张丽丽
Owner JIANGSU LITIAN TECH
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