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[2] [page needed] Such radiation breaks the C-H bonds and creates color centers [definition needed] which absorb the produced light, significantly reducing the light output. [3] Following the increase in interest in Vinyl Records (as of 2022), PVT is being looked at as a replacement for PVC, the usual and historic material used to make Vinyl ...
Vinyl, acetate, and shellac discs being exposed to soil and fungus spores. Library of Congress Study, 1959. The conservation and restoration of vinyl discs refers to the preventive measures taken to defend against damage and slow degradation, and to maintain fidelity of singles, 12" singles, EP’s, and LP’s in 45 or 33⅓ rpm 10" disc ...
By definition, biodegradable materials are formed or organic compounds which can thus be broken down by living organisms, such as bacteria, fungi, or water molds, and reabsorbed by the natural environment. [13] Whether a material is biodegradable is determined by its chemical structure, not the origin of the material from which it is made. [14]
With rising concern for environmental ramifications of plastic waste, researchers have been exploring the application of genetic engineering and synthetic biology for optimizing biodegradable plastic production. This involves altering the endogenous genetic makeup or other biological systems of organisms.
The breakdown of these polymers depend on a variety of factors including the polymer and also, the environment the polymer is in. Polymer properties that influence degradation are bond type, solubility, and copolymers among others. [2] The surrounding environment of the polymer is just as important as the polymer structure itself.
In addition, the packaging is more environmentally friendly due to the use of more easily recyclable and biodegradable cardboard (as opposed to the polystyrene used in jewel cases) and is significantly cheaper to produce than both jewel cases and digipaks, which has made them a more favorable option in markets where CD sales are declining.
The LP (from long playing [2] or long play) is an analog sound storage medium, specifically a phonograph record format characterized by: a speed of 33 + 1 ⁄ 3 rpm; a 12- or 10-inch (30- or 25-cm) diameter; use of the "microgroove" groove specification; and a vinyl (a copolymer of vinyl chloride acetate) composition disk.
The use of biotic materials and processed biotic materials (bio-based material) as alternative natural materials over synthetics is widespread with those who are environmentally conscious because such materials are usually biodegradable, renewable, and the processing is commonly understood and has minimal environmental impact.