What Smart Glass Privacy Glass is Made of

What Smart Glass Privacy Glass is Made of

What Smart Glass Privacy Glass is Made of

By Peter Lin

SITUATION
Many glass factories are interested in making smart glass, but they don’t know the basic question: what composition of smart glass? What smart glass is made of? The following is the answer to the basic questions: the things you need to make smart glass.

3-1 SMART FILM
Smart film have two kinds: Non-adhesive smart film and self adhesive smart film.
Non-adhesive smart film is often laminated inside the two glasses by hot melt-adhesive EVA.
And self-adhesive smart film is able to be putted on the installed window surface.

3-2 BUS BAR AND WIRE
The bus bar and wire to connect the smart film to the power device.
For this part, you can do it your self, or you can ask us to install it for you. Please make clear when you making order of smart glass film.

3-3 POWER DEVICE&REMOTE
The power device system is able to adjust the Voltage and controlling the switch.
The parameter of power device is depending on the type and the square meters of the smart glass film you need.

CONCLUSION
Smart film is easy to understand. Simply, you need 3 things: smart film, busbar, and power device.
For more detail information please contact us.

+The Implication of Smart Glass (SMART GLASS (Privacy Glass), Privacy Glass, Magic Glass )
-Imply SMART GLASS (Privacy Glass) in door, windows or the glass insulation. For example, in the windows of the business office, when the SMART GLASS (Privacy Glass) is on, the state of the SMART GLASS (Privacy Glass) is transparent, you will feel the room space is big, and feel comfortable. When you are in the business meeting, you need some privacy, you can just turn off the SMART GLASS (Privacy Glass), the SMART GLASS (Privacy Glass) turns to be translucent, you have the privacy.

-Using the SMART GLASS (Privacy Glass) for projecting screen. In the state of translucent, the SMART GLASS (Privacy Glass) can strengthen the view effect of the projection. The viewable range can be more than 140 degrees.

-Imply the SMART GLASS (Privacy Glass) in bank industry, jewelry industry and showcase. When it’s off work, you can turn off the SMART GLASS (Privacy Glass), the sate of SMART GLASS (Privacy Glass) turns into translucent. Which can protect the high-value properties from the criminals. Also the SMART GLASS (Privacy Glass) is laminated with advanced EVA INTERLAYER FILM, when the glass is broken,the EVA INTERLAYER FILM will stick the broken glass pieces, avoiding the broken glass hurting people or properties.
-Imply the SMART GLASS (Privacy Glass) in hospital. The SMART GLASS (Privacy Glass) can be used to replace curtains, which is safe and solid and can be view insulation.
-Imply the SMART GLASS (Privacy Glass) in high-end hotel, cooperation building, bathroom. Which shows the humane optional and high classic artistic sense.

ALL RIGHT RESERVED BY:
(Product 1. )China Smart Switchable Film for Privacy Glass, Smart Glass
(Product 2.) Ethylene-Vinyl Acetate EVA Interlayer Film for Safety Laminated Glass Smart Glass Lamination
www.evafilms.com / www.cncnext.com
cnc@cncnext.com/ eva@evafilms.com / benext77@hotmail.com /benext77@gmail.com

10 Things of Laminated Glass Inserted with EVA Film You Should Know

10 Things of Laminated Glass Inserted with EVA Film You Should Know

10 Things of EVA Laminated Glass Inserted You Should Know
By Peter Lin

EVA SAFETY LAMIANTED GLASS

【1】The thicker laminated glass is more strengthen than the thinner laminated glass.

【2】More layers laminated glass(glass+EVA interlayer+glass+EVA interlayer+glass+EVA interlayer….+glass+EVA interlayer) is more strengthen than the two layers laminated glass.

【3】Laminated glass made of semi-tempered glass is better in impact resistance than the laminated glass made of full tempered glass or float glass.

【4】Laminated glass with thicker Ethylene Vinyl Acetate EVA Film (0.76mm)will be stronger than the same laminated glass with thinner EVA Film(0.38mm).

【5】If you want to seal the edges of laminated glass, make sure the glass sealant is friendly to the EVA Film. Use neutral sealant (DOW CORNING 1199, 799, 982, 1200,7091) to fix it.

【6】Bullet-proof laminated glass or explosion-proof glass can not be laminated with tempered glass as basic sheet.

【7】Point structure of glass should be strengthened.

【8】For safety reason, it’s better to use laminated semi-tempered glass for Sky-light glass( but not as floor).

【9】The pallets of broken laminated tempered glass with EVA Film may be bigger than the pallets of broken single tempered glass.

【10】The clean of the basic glass and the heat control in the combination procedure of laminated glass are the key reason for the quality and useful life of laminated glass.

Peter Lin at CNCGLASS.COM

ALL RIGHT RESERVED BY:
(Product 1. )Ethylene-Vinyl Acetate EVA Interlayer Film for Safety Laminated Glass
(Product 2.) China Solar EVA Film for Solar Panel Encapsulation
(Product 3.) China Smart Switchable Film for Privacy Glass, Smart Glass
www.evafilms.com / www.cncnext.com
cnc@cncnext.com/ eva@evafilms.com / benext77@hotmail.com /benext77@gmail.com

CNCGLASSCOM 2

 

How to Process Laminated Glass with EVA Film Interlayer Successfully

How to Process Laminated Glass with EVA Film Interlayer

How to Process Laminated Glass with EVA Film Interlayer Successfully
By Peter Lin

How Do You Process Laminated Glass with EVA Film?
1)Processing the Laminated Glass with EVA Film is different from the laminating with PVB Film.
Different in Oven: Laminating with PVB Film you need autoclave; laminating with EVA Film you need a simple oven: one-step laminating oven which is simpler and easier to process, and less cost to install.

2)Install the ONE-Step of vacuum laminating Oven
Make sure the siliconee vacuuming bag is great, and the heating is even inside the oven.

3)Combine the pre-laminated glass
Normal the combination is :GLASS+EVA FILM+GLASS
Cut the extra EVA Film gently.
Solid the pre-laminated glass with high-temperature green ribbon tape

4) Put the pre-laminated glass inside siliconee vacuum bag
Seal the siliconee vacuum bag.
Start vacuum pump, double check the vacuuming is working well, and the value of vacuum pump reaches the requirement.

5)Heating in two temperature stages
Normally, the heating will be set in two stage:
Low temperature stage: 60 degrees C for 15 minutes
High temperature stage:130 degrees C for 40 minutes

6)Do NOT stop vacuuming after the laminated glass is cool as room temperature
Don’t stop vacuuming until the laminated glass is cool to the room temperature, Or the bubbles will come out inside the laminated glass.

Preparation for Glass Lamination with EVA Film
Preparation for Lamination:

1)Cut the glass as the size you want, and use Glass Edging Machines to shape the edges of the glasses, which will avoid the glasses hurt the silicone vacuum bag.

2)Use the purified water, deionized water, industrial alcohol or Ethanol to clean the glasses, then use the clean hot wind to dry the glasses. Make sure no black spot, water mark, finger print etc on the glasses.

Pre-Laminating:

1)Put the EVA FILM on the bottom glass, make sure the EVA Film is plain, then put the other glass on the EVA Film, then use the high-temperature-resistance green ribbon tape to solid the pre-laminated glass.

2)Cut the extra EVA FILM that outside the pre-laminated glass. Don’t pull the EVA Film hard to avoid the remove of the EVA Film. Cutting out the extra EVA Film can void the extra EVA Film melting and sealing the edges of the laminating glass and hold back vacuuming.

3)When you put the pre-laminated glass in the siliconee bag, make sure that each pre-laminated glass is 3-5cm away from each other to help vacuuming.

4)To help vacuuming, you can also put the wooden bar around the silicone bag to help vacuuming.
Notes: if you seal the pre-laminated glass totally with tape, you need to make some small holes on the tapes to help vacuuming.

Heating Procedures of Laminating Glass with EVA Film

1)Before the silicone bag shelf being pushed into the oven, start the vacuum pump to vacuuming for 3-5 minutes. Check whether the silicone bag is leaking or not. And the vacuum value should at least be 0.095Mpa.

2)Push the silicone bag shelf into the oven, then set the parameters of temperature and time. Following two STAGE heating temperature and time. The low temperature stage is 60degress C and 15mins. And the high temperature stage is 130 degree C and 40 mins (notes:following the instructions that the EVA FILM MANUFACTURERS give to you, the parameters maybe different for different manufacturers). Because it takes time for the heat transfer through the silicone bag, so the temperature the detector gets may be different from the real temperature of the laminated glass.

3)Stop heating. Wait till the temperature is lower than 75 degrees, then open the oven door and pull out the silicone shelf to help cooling. But don’t open the silicone bag or let cold water touch the laminated glass.

4)After the temperature is lower than 45 degree, now you can open the silicone bag and check the laminated glass.

Processing Temperature and Time for Laminating Glass with EVA FILM

First I would to say that no fixed standard value for the processing parameters, because different EVA film manufacturer have different formula for the EVA FILM, and different glass laminating machine manufacturer have different property for the machine.What’s more, the weather and moisture is different in different regions, which also would affect the processing parameters. So there is no fixed standard value for the processing temperature and time for laminating glass with EVA FILM.

But I can tell you some general rules of the processing parameters for laminating glass with EVA FILM.
1) Indoor EVA FILM (like 110 degrees C) need lower temperature for laminating than outdoor EVA FILM (130 degrees C).

2) If you laminating thicker glass with more layers of EVA FILM, then the keeping time should be longer, for example if 5mmglass+0.38mm EVA FILM +5mm glass is 130 degree and 40 min, then 10mm glass+2layer EVA FILM +10mm glass should be 130 degree and 55mins.
Because more time is needed for the heat pass through the thicker glass and more layer of EVA FILM.

3) The tempered glass laminating with EVA FILM needs longer keeping time than the flat glass laminating with EVA FILM.

4) If the weather is colder in your region, then the keeping time should be longer.

And it’s also different for different glass laminating machine, because the heating part is different.
So :
1) If you change the EVA FILM supplier, maybe you have to adjusting the processing parameters for laminating glass with EVA FILM.

2) If you buy a new EVA glass laminating machine, and the processing parameters maybe different from your older one.

3) If the weather changes from different seasons, maybe you also need to adjust the processing parameters for laminating glass with EVA FILM.

4) Yes, every EVA FILM Manufacturers would offer you the processing instructions or parameters for laminating glass with EVA FILM, but you don’t have to follow them exactly. You should change some according to your real situation.

Why Two Periods of Temperature for Laminating Glass with EVA FILM?

1)Low temperature period can help vacuuming, at this temperature the EVA Film is still not melted, but the temperature is higher than room temperature, the numerators of air would move faster, which is helpful for the vacuuming. If vacuuming is not good, the bubbles would come out the laminated glass.

2)If the moisture in your place is high, and maybe the EVA FILM has already absorbed some moisture, the low temperature period would help dry the EVA FILM before the EVA FILM start to melt, which can avoid bubbles and be good for the adhesion of the EVA FILM.

3)If you wash the glass, and maybe the glasses are not dry enough, the low temperature period can help dry the glasses.
For laminating with papers, if you print ink in the papers are not dry enough, the low temperature period can help dry the print ink.

4)And also, after the low temperature period, the machine is stay hot too, so temperature detector can measure a more correct temperature closer to real temperature of the laminated glass.

Notes of Making Laminated Glass with EVA Interlayer Film
1).Glass is not a good conductor of heat, so please don’t laminate different thickness of glasses at the same silicone bag. It’s more easily for the thin laminated glass with EVA Interlayer Film to transfer heat, so the keeping heating time at high temperature can be shorter. And if the laminated glass is thicker, the keeping heating time for the high temperature should be longer.

2).For the different thickness of the fabric or papers, the thickness of EVA interlayer film should be different. For the thin and small silk, the 0.25 thickness EVA interlayer film would be OK. For the thicker and bigger silk or fabric, the thickness of EVA Interlayer Film should be 0.38mm or more.

3).Normally, the EVA Interlayer Film is soften at 75 degree C and start to react at about 100 degree C. And the EVA Interlayer Film would be totally melted at about 115 degree C. Generally speaking, when the detector gets the temperature of 120degree C, the real temperature of EVA Interlayer Film gets 115 degree C.

4).The mobility of different thickness of EVA Interlayer Films is different when being heated. The mobility of thicker EVA Interlayer Film is more than the thinner EVA Interlayer Film. So please adjust the time of high-temperature-period of different thickness EVA Interlayer Film. If the high-temperature-period is too long, the melted EVA Film Interlayer would leak from the laminated glass, which will cause bubbles in the edges of laminated glass.

5).The quality of laminated glass is partly decided by the plainness of the glasses. So please try to select the good plainness of flat glass. If you are laminating with tempered glass, please use the thicker EVA Film Interlayer. For the poor plainness glass, the laminated glass may be broken when vacuuming or cause bubbles of laminated glass.

Peter Lin at CNCGLASS.COM

All rights reserved by CNC GLASS INTERLAYER TECH:
Product 1]CNC-Force EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS
eva@evafilms.com
Product 2]CNC-SmartSMART FILM FOR PRIVACY SWITCHABLE GLASS
smartfilm@smartestglass.com
Product 3]CNC-Shield PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS
pvb@pvbfilm.net
Web: www.CNCglass.com www.CNCnext.com
Mail: cnc@cncglass.com
benext77@gmail.com

ADHESIVE STRENGTH OF EVA FILM FOR LAMINATED GLASS

HOW TO SOLVE ADHESIVE STRENTH OF EVA FILM

Testing Peeling Strength of EVA Film_conew1

HOW TO SOLVE ADHESIVE STRENGTH OF EVA FILM FOR LAMINATED GLASS

Importance:
The adhesive strength of EVA Film is very important for laminated glass. The adhesion will affect the safety of laminated glass and the delamination of laminated glass.
So, which factors will influence the adhesion of EVA Film:

1.The type of EVA Film
Generally speaking, the super-transparent EVA Film is stronger in adhesion than the normal transparent EVA Film. The outdoor type EVA Film is stronger in adhesion than the indoor type of EVA Film.

2.The manufacturer of the EVA Film
Because different EVA Film manufacturer has different formula of producing EVA Film. So the adhesion of the EVA Film will be different.

3.Heating temperature of the EVA Film
When laminating the EVA Film, the heating temperature will affect the cross link reaction and coupling reaction, which will lead to the adhesive strength of the EVA Film.

4. The Heating Time
The heating time must be long enough for the cross link reaction and coupling reaction to be fulfilled completely.

5.The storage of the EVA Film
If you open the package of the EVA Film, then don’t use up, the left EVA Film may absorb some moisture, which will do harm to the adhesion strength.

Peter Lin at CNCGLASS.COM

All rights reserved by:
All rights reserved by CNC-INTERLAYER TECH:
【Product 1】CNC-Force® EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS
【Product 2】CNC-Smart® SMART FILM FOR PRIVACY SWITCHABLE GLASS
【Product 3】CNC-Shield® PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS
Web: www.CNCnext.com www.HelloGlass.com
Mail: cnc@cncnext.com
benext77@gmail.com/
benext77@hotmail.com