Lightweight 2.2g/Cm2 Transparent Glass Tube In Chemistry Lab

Light weight Transparent Glass Tube Easy to process

The relative molecular weight of plexiglass is about 2 million. It is a long-chain polymer compound, and the chains that form the molecules are very soft. Therefore, plexiglass has a relatively high strength, and its tensile and impact resistance is 7- higher than that of ordinary glass. 18 times.

There is a kind of plexiglass that has been heated and stretched, in which the molecular chains are arranged in a very orderly manner, which significantly improves the toughness of the material. Use nails to penetrate this plexiglass, even if the nail penetrates, there will be no cracks on the plexiglass.

This kind of plexiglass will not break into fragments after being penetrated by a bullet. Therefore, the stretched plexiglass can be used as bulletproof glass, and also as a cockpit cover on military aircraft.

Alkaline earth metal oxide raw materials: CaO, MgO, BaO, ZnO, PbO materials. Adding CaO and MgO to the glass can reduce the tendency of soda silica glass to crystallize and enhance the chemical stability. It can reduce the viscosity of glass at high temperature and promote the melting and refining of glass. However, as the temperature decreases the viscosity increases rapidly, difficulty forming operation. The raw materials are limestone (CaCO3) and dolomite sulphur ore (MgCO3), or contain both CaO and MgO. BaO and ZnO are often added to the glass to adjust the refractive index and chemical stability of the glass. The raw materials used are generally industrial zinc oxide and BaCO3, BaSO4 or Ba(NO3)2. PbO glass was added can significantly increase the refractive index and dispersion, short wavelength light absorbing glass. While increasing the proportion of the melting temperature decreases, good wettability with the metal. The listed PbO raw materials are red lead, yellow lead or industrial lead nitrate.