UV scratch-resistant agent of organic-inorganic composite system and preparation method and application of UV scratch-resistant agent

An inorganic composite, scratch-resistant technology, applied in coatings, polyurea/polyurethane coatings, etc., to improve environmental protection, durability, and environmental protection.

Inactive Publication Date: 2019-12-17
西安航天三沃化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, with the development of the industry, window film coating companies have put forward higher requirements for the scratch resistance

Method used

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  • UV scratch-resistant agent of organic-inorganic composite system and preparation method and application of UV scratch-resistant agent

Examples

Experimental program
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preparation example Construction

[0026] This embodiment also provides a method for preparing a UV scratch-resistant agent of an organic-inorganic composite system, which specifically includes the following steps:

[0027] Step 1: Weigh the polyurethane acrylate oligomer, nano-silica dispersion, adhesion promoter, reactive leveling agent, macromolecular photoinitiator and acrylate reactive diluent according to the formula and add them to the stirring tank. Weigh part of the solvent to rinse the weighing container and pour it into the stirring tank;

[0028] Step 2, add the remaining part of the solvent into the stirring tank, and stir until the urethane acrylate oligomer and the macromolecular photoinitiator are completely dissolved and uniform;

[0029] Step 3, 400-mesh eight-layer filter screen to filter and discharge.

[0030] An organic-inorganic composite system UV scratch-resistant agent is used for the application of automobile window film and architectural window film.

Embodiment 1

[0033] This embodiment provides a UV scratch-resistant agent of an organic-inorganic composite system, including the following raw materials in weight percentage: 30% of polyurethane acrylate oligomer, 6.4% of nano-silica dispersion, 0.3% of adhesion promoter, solvent 48%, reactive leveling agent 0.3%, macromolecular photoinitiator 3% and acrylate reactive diluent 12%.

[0034] In this example, the urethane acrylate oligomer is an aliphatic urethane acrylate oligomer with six functional groups; the nano-silica dispersion is Tego’s C150; the adhesion promoter is a phosphate-modified acrylate oligomer The solvent in the present embodiment is toluene and butanone, and the consumption of toluene is 24%, and the consumption of butanone is also 24%; Reactive type leveling agent is polysiloxane modified by acrylic acid; Macromolecular photoinitiated The agent is IRGACURE 2959 of IGM Company; the acrylate reactive diluent is a mixture of dipentaerythritol hexaacrylate and pentaerythri...

Embodiment 2

[0037] This example provides an organic-inorganic composite system UV scratch-resistant agent and its preparation method. The difference between this example and Example 1 is that this example includes the following raw materials in weight percentage: polyurethane acrylate oligomer 26% , 6.4% nano-silica dispersion, 0.3% adhesion promoter, 52% solvent, 0.3% reactive leveling agent, 3% macromolecular photoinitiator and 12% acrylate reactive diluent.

[0038] In this embodiment, in this embodiment, the urethane acrylate oligomer is an aliphatic urethane acrylate oligomer with six functional groups; the nano-silica dispersion is Tego's C150; the adhesion promoter is phosphate modified acrylate oligomer; the solvent in this embodiment is toluene and butanone, and the consumption of toluene is 26%, and the consumption of methyl ethyl ketone is also 26%; Reactive type leveling agent is polysiloxane modified by acrylic acid alkane; the macromolecular photoinitiator is the IRGACURE295...

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Abstract

The invention discloses a UV scratch-resistant agent of an organic-inorganic composite system and a preparation method and an application of the UV scratch-resistant agent. The UV scratch-resistant agent comprises the following raw materials by the weight percentage: 26-34% of a urethane acrylate oligomer, 2.4-6.4% of a nano silicon dioxide dispersion liquid, 0.3% of an adhesion promoter, 44-52% of a solvent, 0.3% of a reactive leveling agent, 3% of a macromolecular photoinitiator and 12% of an acrylate reactive diluent, wherein the sum of the weight percentages of the raw materials is 100%. The urethane acrylate oligomer comprises a urethane acrylate oligomer with six functional groups; the adhesion promoter comprises a phosphate modified acrylate oligomer; the leveling agent comprises acrylic acid modified polysiloxane; the macromolecular photoinitiator comprises 2-hydroxy-4-(2-hydroxyethyl)-2-methyl propiophenone. After coating the surface of a window film and being cured into a film, the scratch-resistant agent has the characteristics of low odor, high hardness, good adhesive force, excellent wear resistance and the like, and meets the index requirements of the window film market on film hardening treatment.

Description

technical field [0001] The invention relates to the field of plastic film surface hardening treatment, in particular to an organic-inorganic composite system UV scratch-resistant agent and its preparation method and application. Background technique [0002] Window film has functions such as heat insulation and UV protection, and is widely used in automobiles, construction and other fields. Generally, a layer of anti-scratch coating is coated on the surface of the window film to reduce the damage to the surface of the window film by external forces. Extended service life. The preparation of anti-scratch agent for window film uses a variety of chemical materials including solvents. Although these solvents will evaporate during the baking process during the coating process, the photo-cured coating often still has a certain odor. These odors come from unreacted monomers or decomposition products of photoinitiators, and the use of window films coated with this kind of coating i...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D7/61C09D7/47C09D4/02
CPCC08K2201/011C09D4/00C09D175/14C09D7/47C09D7/61C08K3/36
Inventor 党小辉马荔梁颖高建宾郭茜王培谈珊珊刘栋存刘骙
Owner 西安航天三沃化学有限公司
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