The high degree of transparency of the plexiglass display stand. Plexiglass is currently the most excellent polymer transparent material, with a light transmittance of 92%, which is higher than that of glass. The tube of the sun lamp called the artificial little sun is made of quartz, because quartz can completely transmit ultraviolet rays. Ordinary glass can only transmit 0.6% of ultraviolet rays, but plexiglass can transmit 73%.
The organic glass display rack has high mechanical strength. The relative molecular mass of plexiglass in the plexiglass display stand is about 2 million, which is a long-chain polymer compound, and the chain forming the molecule is very soft. Therefore, the strength of plexiglass is relatively high, and it is resistant to stretching and impact. 7-18 times higher than ordinary glass. 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 a nail to drive into this plexiglass, even if the nail penetrates, no cracks will occur 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.