tag:blogger.com,1999:blog-52852137377172780732024-09-04T13:26:08.508-07:00hasnanhttp://www.blogger.com/profile/02590952024515915629noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-5285213737717278073.post-86809829137177414792010-12-01T14:57:00.000-08:002010-12-01T14:57:55.844-08:00

Xyron modified from PPE, Xyron™ resins are engineering resins, composed of polyphenylene ether (PPE) modified by polystyrene (PS), polyamide (PA), or other polymeric materials. PS-modified Xyron™ has an amorphouse molecular structure that provides excellent heat resistance, dimensional stability, and mechanical properties. It also exhibits outstanding superiority in flame retardancy (free from

hasnanhttp://www.blogger.com/profile/02590952024515915629noreply@blogger.com1tag:blogger.com,1999:blog-5285213737717278073.post-11493369980853533232008-10-11T16:38:00.000-07:002008-10-11T18:06:34.141-07:00

Acrylonitrile butadiene styrene, or ABS, (chemical formula (C8H8· C4H6·C3H3N)n) is a common thermoplastic used to make light, rigid, molded products such as piping, plastic for electronics component, gear, automotive body parts, wheel covers, enclosures, protective head gear, toys, small appliance housings and power tools applications (hair dryers, blenders, food processors, lawnmowers, etc.ABS

hasnanhttp://www.blogger.com/profile/02590952024515915629noreply@blogger.com0tag:blogger.com,1999:blog-5285213737717278073.post-66894430903826618912008-07-04T18:30:00.000-07:002008-07-04T20:53:35.216-07:00

what does polymer mean?Polymer means many monomers. Sometimes polymers are also known as macromolecules or large-sized molecules. Usually, polymers are organic but not necessarilywe can what is monomer and polymer?monomerMonomers are molecules typically about 4-10 atoms in size, reactive in that they bond readily to other monomers in a process called polymerization. Polymers and their

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Shrinkage is inherent in the injection molding process. Shrinkage occurs because the density of polymer varies from the processing temperature to the ambient temperatureThere are linear and volumetric shrinkages. Both methods are difficult to measure accurately.Volumetric shrinkageTo understand shrinkage it is first necessary to appreciate just how large the volumetric shrinkage of plastics

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This standard covers the measurement of specimen shrinkage for injection and compression molding. Data for mold shrinkage should be used for material comparison. Actual mold shrinkage values are highly dependant on part geometry, mold configuration, and processing conditions.Scope of test 1.1 This test method is intended to measure shrinkage from mold cavity to molded dimensions of

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Instead of relating shrinkage to processing parameters, we consider some fundamental factors that affect shrinkage. These factors are volumetric, shrinkage, crystalline content, stress relaxation and orientation.Good Explanation relation between Plastic Shrinkage and Injection parameter we can read below. Plastic materials are injection-molded in a thick melt. The thickness of the melt varies

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What is Shrinkage and Warpage of Plastic Mold shrinkage is the shrinkage of the polymer as it cools after the molding process. It is typically used to properly machine injection molds so that final part dimensions are as desired. Mold shrinkage can be Dependant upon the molding parameters used - often the extremes of the processing range for the material plus a midrange value are tested. we can

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Polystyrene (PS) is a thermoplastic with amorphous structure that is designed for applications requiring excellent electrical and mechanical properties together and strong. Polystyrenes in generally are transparent, but available in various colors.Now, polystyrene use in various application like household appliances, electrical parts, line printer parts, camera parts, rice cooker, refrigerator

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Polyethylene or polyethene is a thermoplastic commodity made by the chemical industry and probably the polymer you see most in daily life. Polyethylene is a polymer consisting of long chains of the monomer ethylene, see about introduction to polymer structure of polyethylene. Polyethylene is created through polymerization of ethene. It can be produced through 3 methods• radical polymerization, •

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plastics divided in two large kinds, they are thermoplastic and thermosets, in general, thermoset materials are stronger than thermoplastic materials due to this 3-D network of bonds, thermosets materials can not be softened on heating. In thermosetting polymers, the polymer chains are joined (or cross-linked) by intermolecular bonding, cross linking is what makes thermosets special.as we know

hasnanhttp://www.blogger.com/profile/02590952024515915629noreply@blogger.com0tag:blogger.com,1999:blog-5285213737717278073.post-64762561191106603232007-12-19T19:19:00.000-08:002007-12-20T05:58:54.570-08:00

Polyethylene is one kind of polymer that very popular plastic in the world, this kind of polymer usually makes shampoo bottles, soap bottles, tail lamps, inner panels, electrical and mechanical gear, children toys, grocery bags and little electrical parts components like in printer, vacuum cleaner and others , poly mean “ many” and mer is part, so we can easy define polymer as many parts and

hasnanhttp://www.blogger.com/profile/02590952024515915629noreply@blogger.com0tag:blogger.com,1999:blog-5285213737717278073.post-35024806283729545432007-12-18T04:28:00.000-08:002007-12-18T05:26:18.283-08:00

Plastics have various type, and each various type have they own name and they Abbreviations or Acronyms, here the list of Plastics material Abbreviationsor you should download the abbreviations hereABS = Acrylonitrile-butadiene-styreneABA = Acrylonitrile-butadiene-acrylateAES = Acrylonitrile-ethylene-styreneARP = Aromatic polyesterAS = Acrylonitrile-styreneCA = Cellulose acetateCMC

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A wide range of composite structures are prepared from polymer resins combined with fibers.for a more extensive discussion of polymer composites. Laminated polymer structures consist of layers of fibrous material impregnated with and bonded together usually by a thermosetting resin to produce sheets, bars, rods, tubes, etc. The laminate may be decorative or industrial,the latter being of

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Acetal and Polyacetal These combine very high strength, good temperature and abrasion resistance, exceptional dimensional stability, and low coefficient of thermal expansion. They compete with nylon (but with many better properties) and with metal die castings (but are lighter). Chemical resistance is good except for strong acids. Typical applications are water-pump parts, pipe fittings, washing

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IntroductionPlastics are polymers. What is a polymer? The simplest definition of a polymer is something made of many units. Think of a polymer as a chain. Each link of the chain is the "mer" or basic unit that is made of carbon, hydrogen, oxygen, and/or silicon. To make the chain, many links or "mers" are hooked or polymerized together. Polymerization can be demonstrated by linking strips of

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The structure, properties and uses of the materials deeply related to the injection molding are explained below so that the forming material will be understood wellThermosetting Plastic This type have Amorphous structure, During the irradiation of diamond by carbon atoms, amorphization of the crystal structure may occur and two specific amorphous forms of carbon may appear, he diamond like

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The most plastic are made from petroleum, although natural gas and coal are used partly,Naphtha, naphtha is a group of various liquid hydrocarbon intermediate oil refining productsused primarily as feedstocks for producing a high octane gasoline component via the catalyticreforming process. Naphtha is also used in the petrochemical industry for producing olefins insteam crackers and in the

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The First PlasticThe first man-made plastic was created by Alexander Parkes who publicly demonstrated it at the 1862 Great International Exhibition in London. The material called Parkesine was an organic material derived from cellulose that once heated could be molded, and retained its shape when cooled.What plastic are ?Plastic covers a range of synthetic or semisynthetic polymerization products

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