In the process of picking water cups, I found that there are many materials for cups, such as stainless steel cups, glass cups, plastic cups, porcelain cups, etc. When buying glasses, you will find that many glasses are made of medium borosilicate glass and high borosilicate glass. Silicon glass, so what is the difference between medium borosilicate glass and high borosilicate glass?
The B203 content in medium borosilicate glass is 8-12% (g/g), and the linear expansion coefficient is 4-5. Compared with low borosilicate glass, medium borosilicate glass has excellent chemical stability and heat resistance.
High borosilicate glass is made by using the property of glass to conduct electricity at high temperature. It is melted by heating inside the glass and processed by advanced production technology. The coefficient of linear thermal expansion is 3.3. It is a special glass material with low expansion rate, high temperature resistance, high strength, high hardness, high light transmittance and high chemical stability.
In general, the difference between medium borosilicate glass and high borosilicate glass mainly includes the following aspects. 1. The amount of borosilicate is different. The amount of borosilicate in medium borosilicate glass is less than that in high borosilicate glass. 2. The temperature difference that can be tolerated is different. Medium borosilicate glass can withstand 0~100 degrees, and high borosilicate glass can withstand higher temperature. 3. The impact strength is different. The impact strength of medium borosilicate glass is easier to break than high borosilicate glass; the impact strength of high borosilicate glass is stronger and not easy to break.
High borosilicate glass material is the best for high temperature resistance and low temperature resistance. It has no pores and is easy to clean. It is the preferred material for glass cups.