CN109836998A

CN109836998A - A kind of transparent heat-insulated organosilicon coating

Info

Publication number: CN109836998A
Application number: CN201710901814.6A
Authority: CN
Inventors: 马驰
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2019-06-04

Abstract

A kind of transparent heat-insulated organosilicon coating, by preparing using organosilicon as film forming agent, ethyl alcohol is solvent, and nanometer antimony oxide tin (ATO) slurry is added, obtains organic silicon nano ATO heat-insulated transparent coating.Its influence to coating light transmittance and heat-proof quality is had studied to add different ATO dosages, by comparing different film forming agents with the influence for comparing this performance of paint-based.Final result shows: the transparent heat-insulated film of obtained nano ATO is good to glass attachment power, with good heat insulation, the temperature difference is up to 12-15 DEG C, it is seen that light transmission rate is up to 80% or more, with good heat insulation and enough visible region transparencies, energy-saving effect is significant.

Description

A kind of transparent heat-insulated organosilicon coating

Technical field

The present invention relates to a kind of insulating moulding coating more particularly to a kind of transparent heat-insulated organosilicon coatings.

Background technique

According to the statistical requirements in China, building energy consumption refers generally to build Energy in use, i.e. building institute in use The energy of consumption, including illumination, electric appliance, heating, refrigeration, facility, hot water, cooking etc..Although statistical result in 2000 shows The global comfort of China's civil buildings is lower than each developed country, the world, but the building energy consumption in China has accounted for the current year whole society The 27.8% of terminal energy sources consumption, close to the level of developed country (1/3 or so), the building energy consumption based on heating and air-conditioning has been accounted for 10% or more.About 43,000,000,000 square metres of China town and country existing building gross area at present, the whole nation create 300,000,000 squares of public building every year Rice, in use, heating, air-conditioning, ventilation, illumination etc. consume big energy to these buildings, medium-and-large-sized public Construction unit construction area energy consumption is about 10 times or so of common residential building, reaches 60 kilograms of standards of every square metre of consumption Coal.In the northern area of China, building heating energy consumption accounts for 20% or more of local whole society's energy consumption, and two in the air of Heating Period locality Oxidation carbon emission amount is apparently higher than non-heating period；National urban resident's air-conditioning installation rate is developed to from 0.71% in 1991 24.48% in 1999, energy for building have reached 30% or so of whole society's energy consumption.China's building is high energy consumption mostly Non-economized building, building consumes a large amount of energy when in use, these energy account for about mankind's total energy consumption 30%~ 40%.It shows according to another report, China's terminal energy sources total amount consumed has been positioned at the second in the world, and the average utilization of the energy is only 30% Left and right, and the energy utilization rate of world industry developed country has significant proportion up to 70% or more, the so difference of the number of great disparity Be because building is heat-insulated or heat insulation effect is bad caused by.Transparent heat insulating dope is that the one kind having recently been developed is able to achieve closely Infrared light good barrier, while it being able to maintain the glass energy-saving coating of higher visible light transmittance again, this novel heat-insulation coating Because environmental-friendly, the factors such as heat insulation is good, preparation process is simple, cost is relatively inexpensive are the solution of glass heat-proof problem New direction is provided, the energy-saving application in the fields such as building glass and vehicle glass has a extensive future.

This research use ATO powder, stable and well dispersed ATO ethanol solution is made, use organic siliconresin as Film forming matter is prepared for transparent heat insulating dope.This method is simple and easy, also more convenient to be applied to industrial production.And ethyl alcohol As a kind of organic solvent of environment-friendly type, the requirement of green coating is also complied with.This research has studied the dosage pair of nano ATO first The influence of coating transparency and heat-proof quality does the proportion of organic siliconresin while guaranteeing transparency and heat insulation Further discussion makes coating obtained have excellent comprehensive performance.

Summary of the invention

There is heat insulation the purpose of the invention is to guarantee the transparency of glass, devise a kind of using ATO powder Transparent heat-insulated organosilicon coating made of body.

The technical solution adopted by the present invention to solve the technical problems is:

Transparent heat-insulated organosilicon coating prepare raw material include: methyltrimethoxysilane (MTMOS }；Ethyl orthosilicate；Silane Coupling agent (KH-560)；Nano ATO powder；Dehydrated alcohol；Glacial acetic acid.

The preparation step of transparent heat-insulated organosilicon coating are as follows: nano ATO powder is dried into 48 h in an oven, taking-up is put into In drier, cooled to room temperature；Quantitative ATO powder is weighed, is added silane coupling agent (the 2% of ATO mass), is added quantitative Dehydrated alcohol；It after ultrasonic wave disperses 30 min, moves into there-necked flask, magnetic agitation, flow back 6 h at 70 DEG C；Then added Enter to be sanded in stirring dispersion machine, 8h is sanded in high speed dispersion, and tune pH is 7.0-7.5.The ethyl alcohol slurry of nano ATO content 30% is made. It selects quartz glass as substrate, coating obtained above is coated on processed quartz glass substrate table with bar spreader Face is put into baking oven, at a certain temperature film-forming after the solvent is volatilized at room temperature.

The detecting step of transparent heat-insulated organosilicon coating are as follows: the test of translucency uses 3101 UV ultraviolet-visible of Shimadzu The transmitance of light-near infrared spectrometer measurement coating ultraviolet region, visible region and infrared light district light.Waveband selection 500 nm of 200-1, more different ATO contents and raw material.Thermal insulation test uses homemade heat-proof device, anti-with 250W hard Quick-fried infrared radiation lamp is as thermal light source.For light source away from 20 cm of specimen surface, bottom plate is the iron plate for being coated with black lusterless paint.In light source Under irradiation, box inner bottom plating and air warming data at any time of record control glass and film template glass respectively, and count Calculate the temperature difference.

The beneficial effects of the present invention are:

Nano ATO organosilicon coating is prepared for based on ATO ethanol solution slurry, research finds that when ATO dosage be 7%, m (MTMOS): m (when TEOS >=4:1, the heat-proof quality and hardness of coating, abrasion resistance, water resistance, heat resistance and The comprehensive performances such as adhesive force are very good.The transparent heat insulating dope visible region transmitance 80% or more, and it is most of red Outer light is effectively obstructed.Coating obtained, which has apparent heat insulation, to be shown to the heat insulation test of transparent heat insulating dope, The temperature difference under infrared light irradiation between transparent heat insulating glass and blank glass can achieve 16 DEG C.

Specific embodiment

Case study on implementation 1:

The target of transparent heat insulating dope is exactly to be made to have high reflection with high transmitance, in infrared light district in visible region The coating of rate, to completely cut off the heat brought by infrared ray to the maximum extent under the premise of guaranteeing sufficiently transparent property, to reach Heat-insulated purpose.Coating without ATO and the transmitted spectrum containing not same amount ATO sample coatings in wavelength 200-1 500nm can be seen Out, when ATO is not added, since bottom plate is that can exist completely through the quartz glass of ultraviolet light, the transmitted spectrum of organic silicon coating It is bordering on a horizontal linear in entire optical wavelength range, transmitance illustrates the silicone resin coating that ATO is not added on 90% It is basic not have to infrared and ultraviolet barriers function.And the transmitted spectrum of coating obtained by the coating of different nano ATO contents Have therewith significantly different.It is greatly lowered in the transmitance of ultraviolet region (about 200-400 nm), as the increase of wavelength penetrates Rate is gradually increasing, and reaches maximum value in visible region (400-800 nm) and the shape of a platform, subsequent infrared light district is presented (> 800 nm) transmitance gradually decreases again.It can be seen that coating all has apparent barriers function to ultraviolet and infrared ray, and The transmitance of visible region is then higher.Reach 80% or so in the transmitance of visible region, light transmission is very superior.In addition, With the increase of ATO content, coating is gradually reduced in the transmitance of visible light wave range, although coating is in ultraviolet region and infrared light district Transmitance it is all extremely low, have the effect of good isolation ultraviolet and infrared ray, but be also reduced in the transmitance of visible region 65 %, as ATO content increases, it is seen that the transmitance in light area is lower and lower, the transparency of coating decreases；And it reduces The content of ATO, coating transparent performance obtained can be more preferable.But cannot be too low, the too low shielding that will affect coating to infrared ray Effect.

Case study on implementation 2:

The sample coatings for selecting ATO content different, determine its temperature difference effect between blank glass.Wherein Air Temperature in box Difference reflects the heat insulation of film.The bottom plate temperature difference then reflects film to the barrier degree of heat radiation, and test result is it is found that sky There is apparent difference, coated glass sample in the heating rate between white glass plate blank and ATO coated glass board test device Plate and control glass are under the irradiation of light source, extension at any time, and the baseplate temp and air themperature in test device are on It rising, incipient stage ascensional range is larger, and it is substantially linear, then gradually tend to be steady, after irradiating about 30min, bottom Plate temperature tends to balance, and air temperature variations are slightly slow in box, and equilibrium temperature is slightly lower.Blank glass test device and coating glass at this time The temperature difference in the bottom plate and box of glass test device between air is larger, and ATO coating is compared with blank glass plate, and the temperature difference is distinguished in box Up to 12 DEG C, 14 DEG C and 16 DEG C.The bottom plate temperature difference can be up to 16 DEG C, 18 DEG C and 21 DEG C respectively, illustrate the addition of ATO so that coating Blocking radiant heat effect it is fairly good.It can further be seen that the content of ATO directly decides the heat insulation of coating.The content of ATO Too low, heat insulation is unobvious；Conversely, the content of ATO is higher, heat insulation better to the barrier action of infrared thermal radiation It is then better.

Case study on implementation 3:

Do not change the content of ATO, but change the proportion of siloxanes, be configured with different samples carried out thermal insulation, wearability and Hardness test.Being thermally shielded property is tested first, have recorded air themperature in test device and baseplate temp respectively at any time and The series of values of variation, it is known that, when the timing of ATO content one, with the extension of testing time, in the bottom plate and box of test device The temperature of air all gradually rises up to balance, and the temperature value difference very little of various time points.It can be seen that working as ATO content one Periodically, each sample is little to the barrier action difference of heat radiation, and the heat insulation of coating is also almost the same.That is coating Heat-proof quality depends on ATO content, and siloxanes has little effect with comparison heat-proof quality.It is hard using Portable pencil respectively As a result the hardness and wear-resisting property of degree meter and abrasion instrument test coating know that the proportion for properly increasing MTEOS and ETOS will help In the hardness and abrasion resistance of enhancing coating.

Claims

1. a kind of transparent heat-insulated organosilicon coating, prepare raw material include: methyltrimethoxysilane (MTMOS }；Ethyl orthosilicate； Silane coupling agent (KH -560)；Nano ATO powder；Dehydrated alcohol；Glacial acetic acid.

2. transparent heat-insulated organosilicon coating according to claim 1, it is characterized in that the preparation of transparent heat-insulated organosilicon coating Step are as follows: nano ATO powder is dried into 48 h in an oven, taking-up is put into drier, cooled to room temperature；It weighs quantitative ATO powder, be added silane coupling agent (the 2% of ATO mass), quantitative dehydrated alcohol is added；After ultrasonic wave disperses 30 min, move Enter in there-necked flask, magnetic agitation, flow back 6 h at 70 DEG C；It is then added into and is sanded in stirring dispersion machine, high speed dispersion is sanded 8h, tune pH are 7.0-7.5, and the ethyl alcohol slurry of nano ATO content 30% is made, and select quartz glass as substrate, are coated with bar Coating obtained above is coated on processed quartz glass substrate surface by device, is put into baking oven after the solvent is volatilized at room temperature, Film-forming at a certain temperature.

3. transparent heat-insulated organosilicon coating according to claim 1, it is characterized in that the detection of transparent heat-insulated organosilicon coating Step are as follows: the test of translucency is ultraviolet using 3101 UV ultraviolet-visible light of Shimadzu-near infrared spectrometer measurement coating Light area, visible region and infrared light district light transmitance, 500 nm of waveband selection 200-1, more different ATO contents and raw material, Thermal insulation test uses homemade heat-proof device, and using 250W hard explosion-proof infrared radial burner as thermal light source, light source is away from template table 20 cm of face, bottom plate are the iron plate for being coated with black lusterless paint, and under light source irradiation, record compares glass and film template glass respectively Box inner bottom plating and air the warming data, and calculating temperature difference at any time of glass.

4. transparent heat-insulated organosilicon coating according to claim 1, it is characterized in that being made based on ATO ethanol solution slurry Standby nano ATO organosilicon coating, research find to work as ATO dosage for 7%, m (MTMOS): m (when TEOS >=4:1, coating Heat-proof quality and the comprehensive performances such as hardness, abrasion resistance, water resistance, heat resistance and adhesive force it is very good, this is transparent Insulating moulding coating visible region transmitance 80% or more, and most of infrared light is effectively obstructed, to transparent heat insulating dope Heat insulation test shows that coating obtained has apparent heat insulation, transparent heat insulating glass and sky under infrared light irradiation The temperature difference between white glass can achieve 16 DEG C, as ATO content increases, it is seen that the transmitance in light area is lower and lower, coating Transparency decreases；And the content of ATO is reduced, coating transparent performance obtained can be more preferable, but cannot be too low, too low meeting shadow Ring shielding action of the coating to infrared ray.