How to produce fireproof glass? What are the process processes?
Fireproof glass belongs to the laminated glass manufacturing field, fireproof sound insulation glass is generally made of flat glass and water glass bonding, water glass that is sodium silicate has a strong alkali, although a part of the additives such as glycerin added to water glass can have some slow alkali effect, but a long time and yellow foaming, corrosion of the glass, so that the transparency is significantly reduced. It will affect the light transmission and appearance, and use water glass containing a small amount of glycerin to stick the flat glass layer by layer, the process is complex, the foaming is not easy to eliminate, and there are many defective products, cost, and long cycle, plus water glass itself is not resistant to water, easy to age, so it is difficult to produce high-quality fireproof glass, in order to improve the quality of fireproof glass, It is necessary to find a good functional binder to replace the existing water glass bonding process.
Fireproof glass is made of flat glass bonded with fireproof transparent adhesive, solidified and sealed. The composition (W%) of the fireproof transparent adhesive is gelling agent 5~15, methylene bisacrylamide 10~20, initiator 0.1~1.0, sodium 5~15, magnesium 10~20, potassium aluminum sulfate 5~15, water 40~50; Glass bonding Wash the cut flat glass with water and cleaning fine and dry it, coat the inner surface with coupling agent, and then use the flat glass with a width of 10~15mm as the required thickness as the edge sealing with glass glue to bond the two pieces of glass, leaving a grout hole for grouting for 1 ~ 2 days; The slurry is the first sodium, magnesium and aluminum potassium sulfate dissolved in water, and then separately added gelling agent, methylene diacrylamide and initiator mix fully, and then poured into the glued flat glass, natural curing, close the grout hole is the product.
The gelling agent may be any of acrylamide or polyvinyl alcohol. It can also be either ammonium persulfate or sodium metabisulfite.
The coupling agent composition (W %) was ethanol 80 ~ 90, acrylamide 2 ~ 10 and silicon coupling agent 2 ~ 6. Glass glue is the glass glue sold in shopping malls, and other types of glue can also be used. Sodium, magnesium compounds and aluminum potassium sulfate are mixed flame retardants, and they can also choose potassium, calcium compounds and bromide and aluminum sulfate of these metal elements.
Mixed flame retardants can also choose sodium phosphate, ammonium dihydrogen phosphate, urea, white sugar or sodium, potassium, lithium silicate and other water-soluble inorganic salts.
The new hybrid flame retardant and its bonding process can be cured at room temperature after perfusion and sealed into a composite product. Mixed flame retardants can make the colloid foam expansion when heated, constitute a strong fire insulation body, not only plays a fire effect, but also improve the fire resistance period, so that the gel with good transparency can replace the water glass used in the current fire glass, progress changes the physical and chemical function of fire glass, to overcome the use of water glass to produce fire glass harm.
Zhenwei Engineering is currently committed to the development and promotion of all kinds of safety fire glass so that everyone can have a better choice, to bring a product diversification and create a safe environment for Macao services. For more information on fire protection products, please call our hotline at 853 28424213 or our email address at mat@zenwaymo.com.
* The above reference source -- Heshan City Hengbao Fireproof Glass Factory Co., Ltd. official website https://www.hbglass.net/