1, the use of different:
smma plastic material: mainly used for medical supplies, cosmetic packaging, stationery utensils, decorative gifts, senior daily necessities.
smma plastic material: can be used as a dielectric layer of the organic field effect tube, applied to the building light body, transparent roof, shed roof, telephone booths, staircases and room wall sheathing and so on.
2, the nature of different:
smma plastic material: Chinese name styrene dimethyl methacrylate **** polymer, is a polyacrylic acid resin **** polymer.
pmma plastic material: pmma is polymethyl methacrylate, also known as do acrylic, acrylic (English Acrylic) or plexiglass.
3, different characteristics:
smma plastic material: good chemical resistance, especially excellent alcohol resistance. High mobility, especially suitable for thick and large volume parts. Less shrinkage after molding, can reduce reprocessing. Transparent color, easy to match color, low dosage of masterbatch when matching color. The use of universal injection molding machines and gongs reduces equipment investment. Finished products can be used for vacuum plating, printing and other decorations.
pmma plastic materials: high transparency and brightness, heat resistance, and tough, hard, rigid characteristics, heat distortion temperature of 80 ℃, bending strength of 110Mpa. colorless and transparent, light transmittance up to 90% - 92%, toughness, more than 10 times larger than the silica glass.
Extended information
PMMA has the advantages of lightweight, inexpensive, easy to mold. Dissolved in organic solvents such as anisole, it can form a good film and good dielectric properties, and can be used as a dielectric layer for organic field effect tubes.
It is molded by casting, injection molding, machining, thermoforming and so on. Especially injection molding, can be mass production, simple process, low cost. Therefore, it is increasingly widely used, it is widely used in instrumentation parts, automotive lamps, optical lenses, transparent pipes.
Plexiglass acrylic (acrylic) in the construction industry in terms of construction, plexiglass acrylic (acrylic) is mainly used in building lighting body, transparent roof, shed roof, telephone booths, stairs and room wall sheathing, etc.; sanitary ware in terms of bathtubs, washbasins, vanity and other products.
In the highway and high-grade road lighting lampshade and automotive lamps and lanterns in the application of the development is also quite fast. Among them, the building lighting body, bathtubs, street advertising light boxes and telephone booths and other aspects of the market growth is faster, the future development of the larger space, the market outlook is very broad.
With the construction of major cities, hotels, guesthouses and high-level residential construction, China's rapid development of architectural lighting body, made of plexiglass acrylic (acrylic) extruded panels made of light body, with high overall structural strength, light weight, high light transmittance, high security and other special advantages, compared with inorganic glass lighting illumination, with a great deal of superiority.
The United States and Japan have made mandatory in the law, primary and secondary schools and kindergartens building glass must be used Plexiglas acrylic (acrylic). With the continuous improvement of Chinese laws and regulations, is expected in the near future, Chinese law will also provide for primary and secondary schools and kindergartens building glass must also be used Plexiglas acrylic (acrylic).
At the same time, China has accelerated the pace of urban construction, street signs, advertising light boxes and telephone booths, etc., a large number of materials used in a significant portion of the plexiglass acrylic material.
Reference:
Baidu Encyclopedia - PMMABaidu Encyclopedia - SMMA