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1. polyurethan elastomers نوشته C._Hepbu

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2.castable polyurethane elastomers نوشته I._R._Clemitson

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برچسب: دانلود کتاب پلی یورتان, نویسنده: غزل امینی تاريخ: شنبه 22 آبان 1395 ساعت: 11:44

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Neoprene (CR; BC, BE): Except for polybutadiene and polyisoprene, neoprene is perhaps the most rubberlike of all, particularly with regard to dynamic response. Neoprenes are a large family of rubbers that have a property profile approaching that of natural rubber, and with better resistance to oils, ozone, oxidation, and flame. They age better and do not soften on heat exposure, although high-temperature tensile strength may be lower than that of NR.These materials, like NR, can be used to make soft, high-strength compounds. A significant difference is that, in addition to neoprene being more costly than NR by the pound, its density is about 25% greater than that of natural rubber. Neoprenes do not have the low-temperature flexibility of natural rubber, which detracts from their use in low-temperature shock or impact applications.General-purpose neoprenes are used in hose, belting, wire and cable, footwear, coated fabrics, tires, mountings, bearing pads, pump impellers, adhesives

برچسب: خواص و کاربرد آهن,خواص و کاربرد قهوه,خواص و کاربرد مس,خواص و کاربرد کربن,خواص و کاربرد فسفر, نویسنده: غزل امینی تاريخ: شنبه 22 آبان 1395 ساعت: 11:43