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The word plastic derives from the Ancient Greek πλαστικός (plastikos), meaning 'capable of being shaped or molded'; in turn, it is from πλαστός (plastos) meaning 'molded'. [10]
An ABS 3D bell manufactured with a 3D printer. Engineering plastics [1] are a group of plastic materials that have better mechanical or thermal properties than the more widely used commodity plastics (such as polystyrene, polyvinyl chloride, polypropylene and polyethylene).
Almost all plastics can be formed into a thin film. Some of the primary ones are: Polyethylene – The most common plastic film is made of one of the varieties of polyethylene: low-density polyethylene, medium-density polyethylene, high-density polyethylene, or linear low-density polyethylene.
Ralph Wiley accidentally discovered polyvinylidene chloride polymer in 1933. [2] At the time he was a college student who worked part-time at Dow Chemical lab as a dishwasher. [3]
Bioplastic A bioplastic is a polymer structure based on processed biological materials rather than petrochemicals.Bioplastics are commonly made from renewable sources like starch, vegetable oil, and less commonly, chicken feathers.
Bakelite was the first fibre-reinforced plastic. Leo Baekeland had originally set out to find a replacement for shellac (made from the excretion of lac bugs).Chemists had begun to recognize that many natural resins and fibres were polymers, and Baekeland investigated the reactions of phenol and formaldehyde.
Disposable plastic cups made from biodegradable plastic. Biodegradable plastics are plastics that can be decomposed by the action of living organisms, usually microbes, into water, carbon dioxide, and biomass. [1]
Styrene acrylonitrile resin (SAN) is a copolymer plastic consisting of styrene and acrylonitrile.It is widely used in place of polystyrene owing to its greater thermal resistance.