1. Safety: Due to the process of laminating glass, the dimming window film can firmly weld the glass, so that when the dimming glass is broken by impact, the glass fragments are basically attached to the film to prevent the glass fragments from splashing and hurting people.
2. Environmental protection: the central control film and photosensitive film in the middle of the dimming glass can shield more than 90% of visible light, infrared light and ultraviolet light. Shielding infrared rays reduces thermal radiation and transmission. Shielding ultraviolet rays can protect indoor furnishings from fading and aging caused by ultraviolet rays and ozone, and protect people from diseases caused by direct ultraviolet rays.
3. Good sound insulation: the dimming film and film in the middle of the dimming glass have damping effect on sound, which can effectively isolate various noises.
2 quality appraisal method of dimming glass
Identification method of wall dimming glass: 1, light transmittance
Good quality wall dimming glass has excellent light transmittance, clarity and transparency when powered on, beautiful appearance, and light transmittance but light impermeability when powered off, which protects privacy well. Simple test method: put your palm on the back of the glass. When the power is off, look at the palm on the back from the front. Although you can see its hazy back, you can't see the fingerprints of the palm. Or you can put an object at 10cm according to the front glass. When the light on both sides is balanced and the light on one side is strong, it is best not to look at the object from behind. Generally, the glass insulation film with good quality should be above 74%.
Appraisal method of quality of wall dimming glass: 2. Sandwich movies.
For non-indoor dimmable glass used for bathroom partition and aluminum alloy doors, windows and curtain walls, the manufacturer should be asked whether there is an EVA layer or a PVB layer in the middle of the dimmable glass. When purchasing, you can ask the merchant for an intermediate film certificate to prove whether EVA film or PVB film is used. If PVB film is used, it is necessary to obtain the certificate of origin of PVB brand products to judge whether they can be used in the corresponding fields. Generally, EVA is not used as microporous membrane for curtain wall glass and outdoor laminated glass, because EVA is easy to yellow, deform or even delaminate under the conditions of sun exposure or low temperature and high humidity; Moreover, EVA is generally abandoned by stone curtain wall manufacturers because of its poor innate viscosity and relatively low safety indexes such as impact resistance of laminated glass products.
Appraisal method of quality of wall dimming glass: 3. panel
Users can choose the corresponding glass panel according to the functional requirements of glass in the application field. Such as public buildings, bathrooms, outdoor curtain walls and other fields with high safety requirements, tempered glass and stainless steel should be used as wall dimming glass panels. Customers who don't have high requirements for fire protection can choose fire-proof glass as the panel, and curved glass mirrors can be used as wardrobe panels where they need to be bent.
Identification method of dimming glass: 4. Glass size.
The technical strength can be judged according to the glass width provided by the manufacturer. The production of dimming glass is a high-tech activity. The bigger the size, the harder it is to sell. Therefore, many domestic manufacturers require some materials whose width exceeds the maximum order of dimming film to be spliced in blocks. As we all know, for wall dimming glass, if it is folded with several pieces of glass with very narrow width, it is visually ugly. For example, if you can choose the width of 1.4m, don't use two pieces of 70cm glass for splicing, which will easily affect the beauty of fabric sofa. At present, the world's largest wall dimming glass can achieve 1500mm×3300mm.
Appraisal method of quality of wall dimming glass: 5. Hollow out and fix it.
If the dimming glass on the wall needs to be hollowed out and fixed, it is necessary to check in advance whether Bian Xiao can dig holes, but ordinary manufacturers or new manufacturers usually can't meet the requirements, so ask in advance if you have experience or can do it, so as to avoid some unnecessary troubles and losses.
3 Maintenance skills of dimming glass
Maintenance skill of wall dimming glass: 1, anti-collision
Don't hit the glass surface of the shower room hard at ordinary times. In order to prevent scratches on the glass surface, it is best to spread a tablecloth. When putting things on dimmable glass furniture on the wall, handle them gently to avoid collision.
Maintenance skills of wall dimming glass: 2. Fixed position.
The dimmable glass furniture on the wall is best placed in a fixed place. Don't move back and forth at will. The items in the cabinet should be placed smoothly. Heavy objects should be placed at the bottom of glass furniture, and the center of gravity of the furniture is unstable, causing harm. In addition, it is also necessary to avoid humidity, stay away from stoves, and be isolated from chemical building materials such as acid and alkali to prevent the erosion of oil fumes.
Maintenance skills of wall dimming glass: 3. Wipe with a towel.
Daily cleaning can be wiped with a wet towel or newspaper. Stubborn stains can be wiped with a towel dipped in beer or warm vinegar. It is best to use the glass cleaning agent sold in the market at present, and avoid cleaning with strong acid-base solution. In winter, the glass surface is prone to frost. At this time, it is very effective to wipe with cloth dipped in concentrated salt water or white wine.
Maintenance skills of wall dimming glass: 4. Wipe with a toothbrush.
Once stained glass and mirror glass become dirty, you can use a toothbrush dipped in detergent to wipe them circularly along the pattern. In addition, you will drop some engine oil on the glass or dip it in water with chalk dust and gypsum powder, and wipe it with clean cloth or cotton to make the glass clean and bright.
Maintenance skills of wall dimming glass: 5. Wash with detergent.
Using a wet cloth sprayed with detergent can make the glass that is often stained with stains clean and refreshing. First, spray a cleaning agent on the dimming glass of the art wall, stick a plastic wrap to soften the solidified oil, tear off the plastic wrap after fifteen minutes, and then wipe it with a dry cloth. If you want to keep the wall dimming glass clean, you must clean it frequently. If there is handwriting on the glass, you can rub it with rubber in water and then wipe it with a soft cloth. If there is paint or dirt on the glass, it can be scrubbed with cotton dipped in vinegar; Wipe the glass with a clean wet cloth to make it as bright as crystal.
4 the price of dimming glass
Wall dimming glass was invented and patented by researchers at Kent State University in the late 1990s. In China, people used to refer to the wall dimming glass as intelligent dimming glass, smart glass, liquid crystal glass, electric control glass, color-changing glass, PDLC glass, smart glass, magic glass and so on.
Dimming glass According to the similarities and differences of control means and principles, wall dimming glass can be switched between transparent and opaque States by various means such as electric control, temperature control, light control and pressure control.
Intelligent dimming glass is a kind of laminated glass, in which a layer of liquid crystal film is sandwiched between two pieces of glass, and the middle of liquid crystal film is covered with en film, and it is molded in an EN one-step oven at high temperature. Considering the pressure resistance and insulation of liquid crystal dimming film in intelligent dimming glass, it is not suitable for processing and production in high temperature autoclave.
Due to the limitation of various conditions, almost all the dimming glasses on the market at present are electronically controlled dimming glasses. The characteristics of the electrically controlled wall dimming glass are well understood: when the power supply of the electrically controlled product is turned off, the liquid crystal molecules in the electrically controlled wall dimming glass are irregularly scattered, so that light cannot enter, and the electrically controlled glass adopts a white opaque appearance; Although the price of dimming glass has dropped from tens of thousands of yuan/square meter when it first came out to less than RMB/square meter at present, the price of wall dimming glass materials is still at a high level due to the high channel cost, which determines that its application fields are mostly used in high-end markets.