Borosilicate heat-resistant glass is a kind of "cured glass", which is quite expensive and fully meets the international environmental protection testing standards. Due to its own performance requirements for heat resistance and resistance to instantaneous temperature differences, the use of high borosilicate materials replaces a large number of harmful heavy metal ions such as lead and zinc in "green glass", so its brittleness and weight are far less than ordinary ordinary " Raw glass".
Moreover, it ensures that there will be no explosion phenomenon in the case of sudden temperature changes. Its weight is much lighter than "green glass" containing a large amount of heavy metal ions, and it looks different from ordinary glass in appearance. It is free of the hard and brittle feeling of "raw glass". 1. Composition of raw materials: high borosilicate glass bottles contain boron trioxide and silicon dioxide. The ordinary glass bottles contain a higher boron content of 14% and silicon content of 80%. The silicon content of ordinary glass bottles is about 70%, ordinary glass bottles generally do not add boron, but sometimes up to 1%
2. Glass characteristics: Gaopeng glass bottles have low expansion coefficient, high softening point and good resistance to rapid cold and heat. Its expansion coefficient is about 32~33*10 (-7), and ordinary glass is about 80-100*10 (-7); it can withstand rapid cold and heat about 200-300 degrees Celsius.
3. Purpose: High borosilicate glass is mainly used for water bottles, baby bottles, glass instruments, reagent bottles, etc.