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EVA is made by mixing ethylene and vinyl acetate in a processor, which creates an unrefined mass of EVA. It is fed through rollers that flatten it into sheets, which are then put into a pressure oven. [2] Ethylene-vinyl acetate is based on products from the production of petroleum and natural gas.
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.
Crystalate is an early plastic. [76] Faturan is a phenolic resin, also similar to Bakelite, that turns red over time, regardless of its original color. [77] Galalith is an early plastic derived from milk products. [78] Micarta is an early composite insulating plate that used Bakelite as a binding agent.
Canvas is a popular base fabric for embroidery such as cross-stitch and Berlin wool work. [9] Some specific types of embroidery canvases are Aida cloth (also called Java canvas [10]), Penelope canvas, Chess canvas, and Binca canvas. [11] [12] [13] Plastic canvas is a stiffer form of Binca canvas. [14]
Hot gas welding, also known as hot air welding, is a plastic welding technique using heat.A specially designed heat gun, called a hot air welder, produces a jet of hot air that softens both the parts to be joined and a plastic filler rod, all of which must be of the same or a very similar plastic.
Close-up of the surface of a lenticular print. Lenticular printing is a technology in which lenticular lenses (a technology also used for 3D displays) are used to produce printed images with an illusion of depth, or the ability to change or move as they are viewed from different angles.
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