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Polyacrylonitrile is a synthetic, semicrystalline organic polymer resin. It degrades before melting. Polyacrylonitrile melts above 300 °C if the heating rates are 50 degrees per minute or above.It is a versatile polymer used to produce large variety of products including ultra filtration membranes, hollow fibers for reverse osmosis, fibers for textiles, oxidized PAN fibers. Polyacrylonitrile fibers are the chemical precursor of high-quality carbon fiber. PAN is first thermally oxidized in air at 230 degrees to form an oxidized PAN fiber and then carbonized above 1000 degrees in inert atmosphere to make carbon fibers found in a variety of both high-tech and common daily applications such as civil and military aircraft primary and secondary structures, missiles, solid propellant rocket motors, pressure vessels, fishing rods, tennis rackets, badminton rackets & high-tech bicycles. It is a component repeat unit in several important copolymers, such as styrene-acrylonitrile (SAN) and acrylonitrile butadiene styrene (ABS) plastic. It has properties involving low density, thermal stability, high strength and modulus of elasticity.Its high tensile strength and tensile modulus are established by fiber sizing, coatings, production processes, and Polyacrylonitrile's fiber chemistry. Its mechanical properties derived are important in composite structures for military and commercial aircraft. Polyacrylonitrile is used as the precursor for 90% of carbon fiber production.

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Polystyrene is an aromatic polymer made from the aromatic monomer styrene, a liquid hydrocarbon that is commercially manufactured from petroleum by the chemical industry. Polystyrene is one of the most widely used kinds of plastic. It is a thermoplastic substance, which is in solid (glassy) state at room temperature, but flows if heated above its glass transition temperature, and becomes solid again when cooled. Pure solid polystyrene is a colorless, hard plastic with limited flexibility. It can be cast into molds with fine detail. Polystyrene can be transparent or can be made to take on various colors.

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Polypropylene is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles, stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.

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Calcium Acetate (Anhydrous)

 Industrial applications. Buffer and for pH control, crystallization aid, or as a catalyst or reagent.   resins, coatings, detergents, dyes,  carbon black, ers, polymers, carpet backing, textile dyeing adrilling fluids, ceramics, leather tanning, fire extinguishnd conditioning,  lubricants, anti-freeze, and personal hygiene products, . Calcium soap, resins for printing ink, water treatment, as concrete accelerator during construction, blowing agent for PVC foam.

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