Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of high-transparency anti-fingerprint resin for polymethyl methacrylate

A polymethyl methacrylate, anti-fingerprint technology, applied in polyurea/polyurethane coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve the problem of losing fingerprint resistance, easy to rub, and surface hardness Insufficient and other problems, to achieve the effect of excellent anti-fingerprint and high transparency

Active Publication Date: 2016-07-06
NANCHANG HANGKONG UNIVERSITY
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface hardness of polymethyl methacrylate is not enough, and it is easy to rub hair. In addition, the surface of polymethyl methacrylate is easy to be stained with fingerprints and oil, which affects the visual effect
[0003] At present, the commonly used anti-fingerprint treatment technology on the surface of polymethacrylate methyl is to coat a layer of UV-cured transparent coating on the surface of polymethacrylate methyl, and add fluorine-containing polyether antifouling agent in the coating, which has Certain anti-fingerprint effect, but this type of externally added fluorine-containing polyether antifouling agent is not resistant to abrasion. As the number of abrasions increases, the fluorine-containing polyether antifouling agent on the coating surface will become less and less until it disappears , and eventually lose the effect of anti-fingerprint
In addition, the current UV-curable coatings are not very hard and are easily damaged by hard objects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] To the dry reaction kettle, add 1.0 mole parts of 1-methyl-1H-5-acid-1H,1H,2H,2H-perfluoro-1-decyl ester and 1.1 mole parts of 3-chloro-1,2- Propylene glycol, bubbling with nitrogen at a flow rate of 0.5 liters per minute for 1 hour, under the protection of nitrogen, raise the temperature to 60-70°C, and mechanically stir the reaction at 60-70°C for 24 hours at a constant temperature to stop the reaction. Excess 3-chloro-1,2-propanediol was removed by pressure distillation, and then dried in vacuum at 80°C for 24 hours to obtain fluorine-containing small molecule chain extender 1-methyl-3-(1,2-propanediol)-5-acid -1H, 1H, 2H, 2H-perfluoro-1-decyl ester.

[0017] Add 2.0 mole parts of isophorone diisocyanate, 0.03 mole parts of stannous octoate and 0.04 mole parts of benzoquinone to the dry reaction kettle, and mechanically stir at room temperature for 1 hour to fully mix the raw materials. Part of 1-methyl-3-(1,2-propanediol)-5-acid-1H,1H,2H,2H-perfluoro-1-decyl ester was...

Embodiment 2

[0020] To the dry reaction kettle, add 1.0 mole parts of 1-methyl-1H-5-acid-1H,1H,2H,2H-perfluoro-1-decyl ester and 1.1 mole parts of 3-chloro-1,2- Propylene glycol was bubbled into nitrogen at a flow rate of 0.5 liters per minute for 1 hour. Under the protection of nitrogen, the temperature was increased to 60-70°C, and the reaction was mechanically stirred at 60-70°C at a constant temperature for 36 hours to stop the reaction. Excess 3-chloro-1,2-propanediol was removed by pressure distillation, and then dried in vacuum at 80°C for 24 hours to obtain fluorine-containing small molecule chain extender 1-methyl-3-(1,2-propanediol)-5-acid -1H, 1H, 2H, 2H-perfluoro-1-decyl ester.

[0021] Into the dry reaction kettle, add 2.0 mole parts of isophorone diisocyanate, 0.05 mole parts of stannous octoate and 0.05 mole parts of benzoquinone, and mechanically stir at room temperature for 1 hour to fully mix the raw materials. Part of 1-methyl-3-(1,2-propanediol)-5-acid-1H,1H,2H,2H-perfluo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of high-transparency anti-fingerprint resin for polymethyl methacrylate. The preparation method comprises the following steps: 1) enabling a fluorine-containing chain extender and isocyanate to react so as to prepare a polyurethane prepolymer with an end group of -NCO; and 2) blocking the polyurethane prepolymer by using pentaerythritol triacrylate, thereby obtaining the high-transparency anti-fingerprint resin. The high-transparency anti-fingerprint resin prepared by using the method can be directly coated on the surface of a polymethyl methacrylate material and can be cured by electron beams, and a cured film formed after curing is excellent in anti-fingerprint property and high in transparency.

Description

technical field [0001] The invention relates to a preparation method of a highly transparent anti-fingerprint resin, in particular to a preparation method of a highly transparent anti-fingerprint resin for electron beam curing polymethyl methacrylate, belonging to the technical field of material surface treatment. Background technique [0002] Polymethacrylate methyl ester, commonly known as plexiglass, has excellent light transmission, can pass through more than 92% of sunlight, and has high mechanical strength, excellent heat and cold resistance, corrosion resistance, and good insulation performance , Dimensionally stable, easy to form, widely used in automotive lights, instrument parts, optical lenses, decorative gifts, advertising light boxes and other fields. However, the surface hardness of polymethyl methacrylate is not enough, and it is easy to rub hair. In addition, the surface of polymethyl methacrylate is easily contaminated with fingerprints and oil, which affect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G18/32C09D175/04C09D5/16C08J7/04
CPCC08G18/3848C08G18/673C08J7/0427C08J2333/12C08J2475/04C09D5/1662C09D175/04
Inventor 徐海涛汪超
Owner NANCHANG HANGKONG UNIVERSITY