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What Are The Advantages Of Plexiglass
May 30, 2018

Plexiglass is the popular name of PMMA, also known as Acrylic. From this name, you may not know what kind of substance it is, or what element it is composed of. The chemical name of the polymer transparent material is polymethyl methacrylate, and the acrylic sheet is commonly known as polymethyl methacrylate (PMMA) sheet, which is polymerized from methyl methacrylate monomer (MMA). to make.

The characteristics of organic glass

1 Highly transparent. Plexiglass is the most excellent polymer transparent material at present, and its light transmittance reaches 92%, which is higher than that of glass. The lamp of the sun lamp known as the artificial sun is made of quartz, because quartz can completely pass ultraviolet rays. Ordinary glass can only pass 0.6% UV, but organic glass can pass through 73%.

2 high mechanical strength. The relative molecular mass of plexiglass is about 2 million. It is a long-chain polymer compound, and the chain of forming molecules is very soft. Therefore, the strength of plexiglass is relatively high, and the ability to resist stretching and impact resistance is higher than that of ordinary glass. 18 times. There is a kind of organic glass which has been heated and stretched, in which the molecular chain segments are arranged in a very orderly order, so that the toughness of the material is significantly improved. With nails nailed into this plexiglass, cracks do not occur on the plexiglass even if the nails penetrate. This plexiglass will not break into fragments after being broken down by bullets. Therefore, the stretched plexiglass can be used as bullet-proof glass and also as a canopy cover on a military aircraft.

3 light weight. The density of plexiglass is 1.18kg/dm3. The same sized material has only half the weight of ordinary glass and 43% of metallic aluminum (belonging to light metal).

4 easy to process. Plexiglass can not only use the lathe for cutting, drilling for drilling, but also can use acetone, chloroform, etc. to bond into a variety of shapes of equipment, but also can use blow molding, injection, extrusion and other plastic molding methods to process large aircraft Cockpit covers, as small as dentures and trays and other products of all shapes and sizes.

The use of organic glass

Plexiglass has such excellent properties that its use is extremely wide. In addition to being used as a canopy, windshield and string window in airplanes, it is also used as a jeep windscreen and window, skylights for large buildings (which can be broken), screens for televisions and radars, protective covers for instruments and equipment, telecommunication enclosures , telescopes and optical lenses on the camera.

The daily necessities made of plexiglass are dazzling, such as buttons made of pearlescent plexiglass, and all kinds of toys and lamps are particularly beautiful because of the decorative effect of colored plexiglass. There is also a wonderful use of plexiglass in medicine, which is to make artificial corneas. If the transparent cornea of the human eye is covered with opaque material, light cannot enter the eye. This is blindness caused by total keratopathy and this disease cannot be treated with drugs.

As a result, the medical scientist envisions using an artificial cornea instead of a white spotted cornea. The so-called artificial cornea, is to use a transparent material made of a few millimeters in diameter of the lens column, and then drill a small hole in the cornea of the human eye, the lens fixed on the cornea, light through the lens into the eye, The human eye can see the light again.

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