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nature : Poly has two names Lavatory small diamine (polyamide -46). A new type of thermoplastic resin. Density 1.24, 278-308 ° C melting point, very insoluble, in 98% formic acid solubility 45% trifluoroacetic acid in micro - Rong, but can dissolve in 98% sulfuric acid. A high thermal stability, the maximum temperature of 170 ° C softening, and nylon -66 to 120 ° C, the impact strength than nylon 6, nylon 66 and polyethylene terephthalate be twice as high, and wear-resistant strength of the nylon-6 three times, and has excellent corrosion resistance Performance. The emergence of nylon -46 other nylon engineering plastics much less was known as the 78 ordinary nylon. Engineering plastics can be used to enhance various rubber products, high temperatures fiber system, preparation can withstand the heat and pressure of mechanical parts, such as automobiles, aircraft engine, the internal combustion engine and the steam engine equipment components. The general use of 1,4-D diamine and adipic acid into nylon -46 salt (nylon46 salt; Tetramethylene diamine adipate), and then condensation derived.
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