Themoplastics Essay

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A thermoplastic (sometimes written as thermo plastic) is a type of plastic made from polymer resins that becomes a homogenized liquid when heated and hard when cooled. When frozen, however, a thermoplastic becomes glass-like and subject to fracture. These characteristics, which lend the material its name, are reversible. That is, it can be reheated, reshaped, and frozen repeatedly. This quality also makes thermoplastics recyclable. There are dozens of kinds of thermoplastics, with each type varying in crystalline organization and density. Some types that are commonly produced today are polyurethane, polypropylene, polycarbonate, and acrylic. Celluloid, which is considered the first thermoplastic, made its appearance in the mid-1800s and reigned in the industry for approximately 100 years. During its peak production, it was used as a substitute for ivory. Today, it is used to make guitar picks. Sometimes, thermoplastics are confused with thermosetting plastics. Although they may sound the same, they actually possess very different properties. While thermoplastics can be melted to a liquid and cooled to a solid, thermosetting plastics chemically deteriorate when subjected to heat. Ironically, however, thermosetting plastics tend to be more durable when allowed to cool than many thermoplastics. Ads by Google Cerro Alloys and HTA We support and sell Cerro Alloys Made in America for the world www.hitechalloys.com nano coating / sealant high quality products from Germany - get more info of NANO here! www.nanocare-ag.com/produkte/ Rotary Molding Rotational moulding expert, member of Chinese Roto Association www.rotational-mould.com China CPVC supplier CPE,CPVC, HCPE, HHCPE, LHCPE,etc. high quality, favorable price! www.gaoxinchemical.com White Masterbatches JKP Best Quality White Masterbatches Free Trial JKP White Masterbatches

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