As with many other synthetic polymers, it is produced by different chemical firms with slightly different formulas . Még egy kép jelentése Kérjük, jelentse a sértő képet. It is a molecule containing the functional group of carbon bonded to two –OR groups. Polyoxymethylene ( POM ) is a thermoplastic material also known as acetal. Among plastic materials , it is one with the most crystalline structure.
It provides a wide operating temperature range.
DuPont thermoplastic medical device materials support design flexibility. POM is not or difficult to bond with an adhesive. Bonding is only possible with cyano-acrylaat after the application of a primer. With cyano-acrylaat it is not possible to bond.
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POM plastic is a semi crystalline thermoplastic with high mechanical strength and rigidity.
Acetal polymer has good sliding . POM is the abbreviation for polyoxymethylene or polyacetal and belongs to the group of high-crystalline thermoplastics. This co-polymer type offers the ideal combination of tensile strength, high rigidity and great wear and tear resistance. It also has a high resistance to moisture absorption, is easy to process and is . POM is a tough material with a very low coefficient of friction. It is sensitive to oxidation, and an anti-oxidant is normally added to molding grades of the material.
The two most common forming methods employed are injection molding and extrusion. Typical applications for injection-molded POM include high- performance . Polyacetal is a resin material with well-balanced mechanical properties. There are two products-homopolymer and copolymer-that have differing molecular structures, and we offer four copolymer products in our lineup.
Its chemical structure provides a . Applications Gears Bearings Valve and pump housings Lawn equipment Injection Molding processing conditions Drying Not required but store the material in a dry atmosphere. Properties, Test standard. Maximum tensile strength, -40℃, D63 MPa, 9 94.
Tensile breaking elongation, -40℃, D63 , 2 30. They combine high rigidity . The Ultraform acetal grades fulfill the demands imposed on an engineering material in especially high measure.
Wipe off or clean when pellets are spilled to avoid slipping and stumbling. DURACON, which is an acetal copolymer resin, has the characteristics shown below. Characteristics of POM materials for extrusion molding. It has broad use for extrusion applications and various grades are prepared according to diversified applications. Being highly crystalline and having a high crystallization rate, . It is a strong, rigid and flexible material , often called “CELCON” with a low friction coefficient, good wear resistance.
Even at low temperatures, it still has very good creep resistance and geometry stability. Mechanical properties: . Polycarbonate has better creep resistance than POM. Special grades of acetals are offered to suit the applications which this material has created. For example, copolymer grades are offered as basic grades, grades with improved sliding properties, reinforced grades (e.g with glass fibre) and high impact grades. Polyoxymetylén ( POM ), známý také jako polyacetal nebo acetal, byl objeven německým chemikem Herman Staudingerem.
Po jeho objevení nebyl polymer komerčně využíván z důvodu problémů s teplotní stabilitou. MISUMI offers free CAD downloa short .