PA 12

Thermoplastics > Polyamides

Poliamida 12
The PA 12 has the lowest water absorption and is the lightest of all polyamides, ie, lighter thermoplastic technopolymer, favoring especially economic solutions is crucial for the aeronautical transport for automobile construction, in electrical applications and the lightest sports sector provided by the market. High basic characteristics of PA12 are given by the chemical structure of the polyamide itself. The addition of additives, fillers, fibers and processing aids. These include, for example, types with high loads with high potential for production of plastic magnets.
Symbols
polyamide 12 PA 12 poly-aminododecanoic acid
Properties PA 12
High impact resistance High resistance to environmental conditions High resistance to chemicals Excellent abrasion and sliding characteristics Low water absorption Good dimensional stability Excellent impact resistance at low temperatures Features high barrier Bio supported by: EN ISO 10993-1 USP / Level VI / 121 ° C usable for prosthesis
Properties
It has a melting point of 175 ° C, good resistance to mechanical stress even at low temperatures, high power attenuation, good mechanical properties which make it an extremely versatile material. High fatigue strength, good impact strength and wear resistance. Through fiber reinforcement, rubber or mineral fillers, obtainable degree with a wide distribution of physical-mechanical and thermal properties. PA12 resin has a low moisture absorption compared to other PA. The PA show some affinity with water as polar, but due to the lower concentration of amide, PA12 absorbs less moisture. Thermal properties PA 12 PA12 is subject to thermal aging, so the standard grades must remain below 65 ° C. The upper use temperature varies depending on the type, 50 to 70 ° C (for a short time also 115 ° C) . to -60 ° C, burns with dripping blue flame. Autoextinguible part can be improved by adding flame-resistant additives. It can also improve the heat resistance by adding thermal or mineral fillers or glass fibers reinforced with stabilizers. Chemical properties PA 12 Good resistance to weak effective aging resistance good weatherability aliphatic and aromatic hydrocarbons, petrol, oils, greases, some alcohols, esters, ketones, ethers, many chlorinated hydrocarbons, alkaline solutions. Do not resist to concentrated mineral acids, strong alkaline solutions, solutions of oxidizing agents, formic acid, phenols, cresols, glycols, chloroform, methylene chloride, phenol, ozone, hydrogen peroxide 30%, carbon tetrachloride, acetic acid tincture alcohol and iodine, potassium permanganate 1% propanol. Electrical properties PA 12 PA12 is a polyamide with higher electrical resistance, in part due to its low moisture absorption. It has a distinctive power electrical insulator, good surface resistance and, therefore, good resistance to progressive currents. It has dielectric loss at high frequencies, but it is excellent to use at low frequencies Processability PA 12 Polyamides 4/6 can be easily molded by injection molding or blow molding, extrusion or using the rotation system. The film, sheets, rods, rings and pipes (plasticized or other) can also be produced by extrusion. 4.6 polyamides in powder form are also used as protective coatings, such as thermally fusible powders or solutions as glues, sealants, etc. The pieces, sheets, rods and semifinished rings are very easy to process mechanically. Polymerization PA / 12 PA12 can be produced in 2 ways: The first is by polycondensation of aminododecanoic acid, a bifunctional monomer with an amine and a carboxylic acid group. The second method is by polymerization of laurylactame at 260-300 ° C through the opening of the ring it can be carried out with anionic initiators (the cationic initiators have not been used commercially because the product is less stable and oxidizes more rapidly. The polymerization at the opening of the ring it is the preferred route for commercial production. Product range PA 12 PA 12 is offered in a wide range of degree including unfilled / unreinforced and grade containing glass fiber, mineral filler, hybrid two or goes filled with special additives and special lubricant, impact modified retardant of flame.
Applications PA12
Electrical connectors, glasses, cups filters, visors, taps, components transparent engineering, medical components in the automotive industry (and pressure fuel lines, filters, bearings).