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

Method for preparing photocatalysis glass self-cleaned coating

A self-cleaning, photocatalytic technology, applied in antifouling/underwater coatings, coatings, and biocide-containing paints, etc. Strong focus, improved antibacterial rate, good film-forming effect

Inactive Publication Date: 2017-05-17
雷笑天
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: aim at the defects that the titanium dioxide self-cleaning coating currently used on the glass surface must have ultraviolet radiation, poor adhesion to the substrate, easy to stick dust and absorb oily pollutants

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

example 1

[0018] Measure 200mL cyclohexane, 50mL oleic acid, 30mL titanium tetraisopropoxide, add 300mL mass fraction of 10% tert-butylamine aqueous solution, stir at 300r / min for 20min, transfer to a four-neck flask, heat to 170°C, keep warm React for 3 hours, cool to room temperature and let stand for 1 hour, collect the upper oil phase and add it to an equal volume of ethanol, mix well and transfer to a centrifuge, centrifuge at 5000r / min for 3 minutes, collect the precipitate, and place the precipitate in a vacuum drying oven , dried at 70°C for 2 hours, then transferred to a pulverizer for crushing, and passed through a 200-mesh sieve to obtain hydrophobic nano-titanium dioxide; weigh 3g of the above-mentioned hydrophobic nano-titanium dioxide, add it to 120mL of chloroform, and disperse it with 300W ultrasonic wave for 30min , then add 3mL of tridecafluorooctyltriethoxysilane, stir at 300r / min for 10h in a constant temperature water bath at 40°C, let stand for 1h and then filter wi...

example 2

[0021]Measure 300mL of cyclohexane, 60mL of oleic acid, 50mL of titanium tetraisopropoxide, add 400mL of 10% tert-butylamine aqueous solution, stir at 400r / min for 30min, transfer to a four-necked flask, heat to 190°C, keep warm React for 5 hours, cool to room temperature and let stand for 2 hours, collect the upper oil phase and add it to an equal volume of ethanol, mix well and transfer to a centrifuge, centrifuge at 6000r / min for 5 minutes, collect the precipitate, and place the precipitate in a vacuum drying oven , dried at 80°C for 3 hours, then transferred to a pulverizer for crushing, and passed through a 200-mesh sieve to obtain hydrophobic nano-titanium dioxide; weigh 5g of the above-mentioned hydrophobic nano-titanium dioxide, add it to 240mL chloroform, and disperse it with 300W ultrasonic wave for 40min , then add 5mL of tridecafluorooctyltriethoxysilane, stir at 400r / min for 12h in a constant temperature water bath at 50°C, let stand for 2h and then filter with suc...

example 3

[0024] Measure 250mL of cyclohexane, 55mL of oleic acid, 40mL of titanium tetraisopropoxide, add 350mL of 10% tert-butylamine aqueous solution, stir at 350r / min for 25min, transfer to a four-necked flask, heat to 180°C, keep warm React for 4 hours, cool to room temperature and let stand for 1.5 hours, collect the upper oil phase and add it to an equal volume of ethanol, mix well and transfer to a centrifuge, centrifuge at 5500r / min for 4 minutes, collect the precipitate, and place the precipitate in a vacuum drying oven , dry it at 75°C for 2.5h, then transfer it to a pulverizer, pass it through a 200-mesh sieve, and obtain hydrophobic nano-titanium dioxide; weigh 4g of the above-mentioned hydrophobic nano-titanium dioxide, add it to 180mL of chloroform, and use 300W ultrasonic Disperse for 35 minutes, then add 4 mL of tridecafluorooctyltriethoxysilane, stir at 350 r / min for 11 hours in a constant temperature water bath at 45 °C, let stand for 1.5 hours, then filter with suctio...

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

PropertyMeasurementUnit
transmittivityaaaaaaaaaa
transmittivityaaaaaaaaaa
transmittivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a photocatalysis glass self-cleaned coating, and belongs to the technical field of functional materials. The method comprises the following steps of: by taking cyclohexane, oleic acid and titanium tetraisopropoxide as raw materials to prepare hydrophobic nano titanium dioxide, generating active silanol from triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilane in chloroform, performing inert low-surface energy treatment on the hydrophobic nano titanium dioxide so as to enable the hydrophobic nano titanium dioxide to have very low surface energy and very poor wettability, performing surface treatment on the double-sulfur treated modified titanium dioxide in absolute ethyl alcohol by using hydrolysate of a silane coupling agent A-186 so as to obtain modified double-sulfur nano titanium dioxide, finally dispersing the modified double-sulfur nano titanium dioxide into aqueous fluorocarbon emulsion resin, and adding other aids, uniformly mixing, thereby obtaining the photocatalysis glass self-cleaned coating. The photocatalysis glass self-cleaned coating prepared by using the method is good in filming property, good in adhesion to substrates, good in contamination resistance and free of phenomena such as ash adhesion or adsorbent oily pollutants.

Description

technical field [0001] The invention discloses a preparation method of a photocatalytic glass self-cleaning coating, which belongs to the technical field of functional materials. Background technique [0002] Glass curtain wall is a kind of beautiful and novel building wall decoration method, and it is a remarkable feature of the era of modern high-rise buildings. In recent years, with the progress of society and the improvement of people's living standards, glass curtain walls have been widely used at home and abroad, and the amount is increasing, but its anti-fouling performance is poor. [0003] Self-cleaning glass coating is a super-hydrophilic coating sprayed on the glass surface, which quickly forms a layer of super-hydrophilic water film between the coated surface and the dirt, so that the dirt can be peeled off the coated surface and washed away by natural rainwater , so that the dirt is washed down with the water film under the action of gravity, so as to achieve t...

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): C09D127/12C09D5/16C09D5/14C03C17/00
CPCC09D127/12C03C17/007C03C17/009C03C2217/70C08K2201/011C09D5/14C09D5/1618C09D5/1668C08L75/04C08K9/06C08K2003/2241
Inventor 雷笑天张潇李雪晴
Owner 雷笑天