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Upcycling polymethyl methacrylate to methacrylic acid
Reaction Chemistry & EngineeringUpcycling PMMA to methacrylic acid rather than methyl methacrylate is a viable economic alternative to treat end-of-life plastic.
Yanfa Zhuang +7 more
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Perspex (polymethyl methacrylate) electrets
Journal of Applied Physics, 1972The decay of the heterocharge of Perspex thermoelectrets as a function of the applied field intensity was studied. This suggests that the decay of the heterocharge is not continuous but occurs in discontinuous jumps. Such a behavior suggests the formation of polarized aggregates that are superficially similar to Weiss domains, which appear to be ...
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Dimensional accuracy of thermoformed polymethyl methacrylate
The Journal of Prosthetic Dentistry, 1996Thermoforming of polymethyl methacrylate sheet is used to produce a number of different types of dental appliances. The purpose of this study was to determine the dimensional accuracy of thermoformed polymethyl methacrylate specimens. Five blanks of the acrylic resin were thermoformed on stone casts prepared from a silicone mold of a brass master die ...
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Polymethyl Methacrylate for the Body
2020Polymethyl methacrylate (PMMA) is a permanent filler used to correct furrows and deep depressions of the body and also for volume replacement. Among all permanent fillers available in the market, PMMA is the most regularly used. PMMA is demonstrated to be safe, effective, and long lasting with few adverse reactions when indicated correctly.
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