A.ch yǐ lubrication: includes 2 typesInternal lubricant: suppose the friction between the circuits or high molecular barley segments of the plastics, and to improve the properties of fire under the effect of heatForeign lubricant: avoid the adhesion between the resin cylinder with surface, mould and screw theThe lubrication back: fatty alcohols, metal SOAP ...B. the plasticizer: improve the chemical plasticizer, easy fire filled into the mold and especially create flexibility for the product. E.g.: the acid loops (benzoic, terephtalic) or straight (adipic. Azelaic..)c. stabilizer: include the type of heat stabilizers, UV stable, aging ...E.g.: the heat stabilizer (organic matter, salts, cadmium...)d. the aging room: in order to expand Quality memorable moments the temperature for the plastic, time use increases, limiting or slowing the oxidation process ... e.g. anti aging phenonic ...e. anti-static Substances: e.g. inorganic salts.f. fire retardant: the fire resistance for plastic g. porous substance: making plastics have the foam holes sp. E.g. organic chemical foam (benzene.)
đang được dịch, vui lòng đợi..