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

Double-crosslinked cured anti-fog film, and preparation method thereof

A double-crosslinking, anti-fog technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor water resistance, fogging, and high cost, and achieve the effects of improving overall performance, simple preparation process, and low cost

Active Publication Date: 2019-07-02
JIANGNAN UNIV
View PDF7 Cites 3 Cited by
  • 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, which have short anti-fog persistence and are not resistant to wiping; heating the glass to heat up the defogging and defrosting requires a lot of electricity and metal; other Most of the anti-fog products have complicated production process, high production cost, poor stability and durability of anti-fog effect, and poor water resistance
[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, and the surface hardness is not enough, not wear-resistant, resulting in poor anti-fog durability
The anti-fog coating materials currently developed in the market have disadvantages such as low adhesion, insufficient surface hardness, scratch resistance, complex production process, short anti-fog time, and high cost.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-crosslinked cured anti-fog film, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Put 100 parts of isophorone diisocyanate in a three-necked flask, add an appropriate amount of acetone to dissolve, then add 20 parts of polyoxyethylene ether (molecular weight is about 600g / mol), under the action of catalyst dibutyltin dilaurate, heat up to 50 ℃ and stirred, reacted for 2 hours; then added 50 parts of dimethylol propionic acid, stirred and reacted for 2 hours at 60℃; then added 20 parts of pentaerythritol triacrylate and 10 parts of OP-10, stirred for 2 hours at 70℃, then stopped the heating reaction to obtain the main body macromolecular chain 1 .

Embodiment 2

[0040] Put 100 parts of dicyclohexylmethane diisocyanate in a three-necked flask, add an appropriate amount of chloroform to dissolve, then add 30 parts of bisphenol A polyoxyethylene ether (molecular weight is about 1548g / mol), under the action of catalyst dibutyltin dilaurate, Heat up to 50°C and stir, react for 2 hours; then add 60 parts of dimethylol butyric acid, stir and react for 2 hours at 60°C; then add 30 parts of polydipentaerythritol pentaacrylate and 15 parts of Tween 20, stir for 2 hours at 70°C and stop Heating the reaction to get the host macromolecular chain 2 .

Embodiment 3

[0042] Put 100 parts of hexamethylene diisocyanate in a three-necked flask, add an appropriate amount of chloroform to dissolve, then add 40 parts of bisphenol A polyoxyethylene ether (molecular weight is about 316g / mol), under the action of catalyst dibutyltin dilaurate, Heat up to 50°C and stir, react for 2 hours; then add 30 parts of dimethylolbutyric acid, stir and react for 2 hours at 60°C; then add 50 parts of hydroxyethyl methacrylate and 5 parts of OP-4, stir at 70°C for 2 hours, then stop Heating the reaction to get the host macromolecular chain 3 .

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 provides a double-crosslinked cured anti-fog film, and a preparation method thereof, and belongs to the technical field of high molecular material. The double-crosslinked cured anti-fogfilm comprises main body large molecular chains and a curing component at a weight ratio of 100 : (5-30), and preferably at 100 : (10-20); crosslinking curing of carbon-carbon double bonds and carboxyl in the main body large molecular chains with the curing agent are realized respectively. Double crosslinking curing is adopted in the preparation method of the double-crosslinked cured anti-fog film, so that anti-fog film comprehensive performance, including film surface hardness, scratch resistance, anti-fog stability and durability, adhesion force with a base material, and water resistance, isimproved obviously; technology is convenient; cost is low; and the preparation method is suitable for large scale industrialized production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a double-crosslinked cured anti-fog film 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, which have short anti-fog persistence and are not resistant to wiping; heating the glass to heat up the defogging and defrosting requires a lot of electricity and metal; other Most of the anti-fog products have complex pr...

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): C09D175/14C09D7/63C08G18/66C08G18/48C08G18/34C08G18/67
CPCC08G18/4833C08G18/6692C08G18/672C08G18/673C09D175/14C09D7/63
Inventor 李婷东为富刘晓锦杨铄冰马丕明陈明清
Owner JIANGNAN UNIV