Photo-cured polyurethane anti-fog film with controllable soft/hard structure and preparation method thereof

A technology of polyurethane and polyurethane prepolymer, which is applied in the field of light-curable soft and hard structure controllable polyurethane anti-fog film and its preparation, which can solve the problems of complex production process, short anti-fog persistence, fogging, etc. Achieve the effects of mature synthesis technology, excellent anti-fog effect, and flexible curing process

Inactive Publication Date: 2019-07-05
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The production and use of transparent materials have penetrated into all aspects of people's lives, but transparent materials (such as glasses, masks, bathroom glass, car front glass, camera lenses, floor-to-ceiling windows, display cabinets) will fog up and interfere with sight in certain environments , this phenomenon has brought a lot of troubles to people, and even caused safety hazards and major economic losses.
[0003] Most of the anti-fog materials in the domestic market are spray-type, and their main components are surfactants. The best anti-fog durability in the market is the product of FSI company in the United States. Premium series products, but the curing temperature needs to be as high as 150°C, and the anti-fog effect drops sharply after soaking in water, the price is high, and most of them are used as disposable anti-fog products in the high-end field
[0004] ACS Appl.Mater.Interfaces, 2016, 8:8737 prepared a polymer coating with anti-fog function, but its water resistance and adhesion are poor; ACS Appl.Mater.Interfaces, 2015, 7:1004- In this paper, a hydrophobic anti-fog film is prepared, but its cost is high, the surface is not wear-resistant, and the anti-fog durability is poor
Therefore, the anti-fog coating materials currently developed in the market have disadvantages such as low adhesion, complicated production process, short anti-fog time, and high cost.

Method used

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  • Photo-cured polyurethane anti-fog film with controllable soft/hard structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put 100 parts of isophorone diisocyanate in a flask, add an appropriate amount of acetone to dissolve, put 10 parts of dehydrated polyethylene glycol 200 in a constant pressure dropping funnel, pass nitrogen to remove oxygen, and use dibutyltin dilaurate as a catalyst Under the action, raise the temperature to 50°C and stir mechanically, and react for 1h; then add 10 parts of hydroxyethyl acrylate and 80 parts of OP-10, stir and react at 60°C for 2h, stop the heating reaction, and get Soft Structure Polyurethane Prepolymer 1 .

Embodiment 2

[0033] Put 100 parts of isophorone diisocyanate in a flask, add an appropriate amount of acetone to dissolve, put 10 parts of dehydrated polyethylene glycol 200 in a constant pressure dropping funnel, pass nitrogen to remove oxygen, and use dibutyltin dilaurate as a catalyst Under the action, raise the temperature to 50°C and stir mechanically, and react for 1 hour; then add 45 parts of hydroxyethyl acrylate and 45 parts of Triton X-100, stir and react at 60°C for 2 hours, stop the heating reaction, and obtain Soft structure polyurethane prepolymer 2 .

Embodiment 3

[0035] Put 100 parts of isophorone diisocyanate in a flask, add an appropriate amount of acetone to dissolve, put 10 parts of dehydrated polyethylene glycol 200 in a constant pressure dropping funnel, pass nitrogen to remove oxygen, and use dibutyltin dilaurate as a catalyst Under the action, raise the temperature to 50°C and stir mechanically, and react for 1 hour; then add 80 parts of hydroxyethyl acrylate and 10 parts of Triton X-114, stir and react at 60°C for 2 hours, stop the heating reaction, and obtain Soft structure polyurethane prepolymer 3 .

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PUM

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Abstract

The invention provides a photo-cured polyurethane anti-fog film with a controllable soft/hard structure and a preparation method thereof, and belongs to the technical field of polymer materials. The anti-fog film comprises a polyurethane prepolymer with a soft structure, a polyurethane prepolymer with a hard structure, and a crosslinking agent containing a carbon-carbon double bond according to aweight ratio of 100:(5-100):(0.5-5). The provided anti-fog film has a long lasting anti-fog effect, the surface is scratch resistant, the waterproof performance is excellent, the basic material adhesion force is high, the performance and structure can be controlled and adjusted, the cost is low, the technique is matured, and the preparation method is suitable for production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a light-curable polyurethane anti-fog film with a controllable soft and hard structure and a preparation method thereof. Background technique [0002] The production and use of transparent materials have penetrated into all aspects of people's lives, but transparent materials (such as glasses, masks, bathroom glass, car front glass, camera lenses, floor-to-ceiling windows, display cabinets) will fog up and interfere with sight in certain environments , this phenomenon has brought a lot of troubles to people, and even caused safety hazards and major economic losses. [0003] Most of the anti-fog materials in the domestic market are spray-type, and their main components are surfactants. The best anti-fog durability in the market is the product of FSI company in the United States. Premium series products, but the curing temperature needs to be as high as 150°C, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08F283/00C08F222/14C08F222/20C08G18/32C08G18/48C08G18/67C08G18/73C08G18/75C08G18/76C08L51/08
CPCC08F283/008C08G18/3206C08G18/4833C08G18/672C08G18/73C08G18/755C08G18/758C08G18/7614C08G18/7671C08J5/18C08J2351/08C08F222/104
Inventor 杨铄冰李婷东为富朱永国贾睿张乐兴
Owner JIANGNAN UNIV
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