PET polyethylene terephthalate. PE is polyethylene. PVC is polyvinyl chloride. PP is polypropylene.

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PET polyethylene terephthalate. PE is polyethylene. PVC is polyvinyl chloride. PP is polypropylene. ABS is an acrylonitrile, butadiene, styrene copolymers three. PEP is polyethylene glycol (PEG) and propylene oxide (PO) copolymers of both. polyvinyl chloride (PVC) which is building lacquer one of the largest lacquer amount of plastic. Rigid PVC density of 1.38 ~ 1.43g / cm3, high mechanical strength, chemical stability Density Polyethylene (PE) polypropylene (PP) Polypropylene is the smallest of all the plastic, about 0. 90 or so. Used to produce polypropylene pipes, sanitary ware and other building products. polystyrene (PS) as a colorless transparent glass-like polystyrene plastic. ABS plastic lacquer ABS plastic is modified polystyrene plastic, to acrylonitrile (A), butadiene (B) and styrene (S) is based on three components formed. PS: polystyrene is a colorless, transparent plastic material. Has a higher glass transition temperature lacquer of 100 C, is often used to produce a variety of needs to withstand water temperatures disposable containers, lunch boxes and disposable foam. PP: Polypropylene is a semi-crystalline thermoplastics. Has a high impact resistance, mechanical properties of tough, anti various organic solvents and acid corrosion. In the industrial sector there is a wide range of applications, is usually lacquer one of the common polymer materials. Australian coins also use polypropylene production. PE: Polyethylene is one of the most commonly used in daily life polymer materials for the manufacture of a large number of plastic bags, plastic films, milk pail products. Polyethylene against a variety of organic solvents, and a variety of acid corrosion, lacquer oxidation resistance, but not acid, such as nitric acid. In an oxidizing lacquer environment is oxidized lacquer polyethylene. In the state of the polyethylene film can be considered transparent, but when due to the massive presence of the large number of crystals inside, strong lacquer light scattering occurs and opaque. The number of affected by its degree of crystallinity of polyethylene chain branches, branch chain, the more difficult to crystallize. The crystal melting temperature of the polyethylene is also affected by the number of branched distribution at 90 C to 130 C from the range of more branched lower melting temperature. Polyethylene is typically single crystal can be prepared in xylene was dissolved in the high-density polyethylene 130 degrees Celsius environment. Structure: lacquer - CH2 - CH2 - CH2 - CH2 - CH2 - CH2 - CH2 - CH2 ABS: acrylonitrile, butadiene, styrene synthetic rubber, acrylonitrile, butadiene, styrene graft of three monomers lacquer polymerization products, taking their first letter of the English name names. It is a high strength, good toughness, good overall performance resin, widely used, commonly used for engineering plastics. INDUSTRIAL lacquer more polybutadiene latex or a low styrene content styrene-butadiene-based lacquer chain of acrylonitrile and the mixture of two monomers graft copolymerization of styrene lacquer was prepared. The mixture of styrene copolymer SAN (or called AS) - in fact it is often containing butadiene and acrylonitrile graft polymer. In recent years, there are first with styrene, acrylonitrile, two kinds of monomers, and then the ABS graft copolymer resin mixed in different proportions to obtain a variety of different purposes adapt ABS resin. The mid-1950s, has started production in the United States industrialized. Industrial production methods can be divided into two categories: one is polybutadiene or styrene-butadiene rubber and resin on roller SAN mechanical lacquer blending, or two latex blend, then copolymer; other is in polybutadiene or low levels of styrene butadiene latex added monomers styrene and acrylonitrile graft copolymer emulsion, or again with the SAN resin mixed in different proportions. Structure, properties and applications lacquer of ABS resin, lacquer the rubber particles are dispersed, lacquer SAN resin dispersed in a continuous phase. When impacted, the crosslinked lacquer rubber particles to withstand and absorb this energy, dispersing the stress, thus preventing the development of cracks in order to improve the tear properties. The purpose is to improve the graft copolymerization compatibility and adhesion of the rubber phase of the resin particle surface. This is how the free SAN resins and graft in the rubber backbone SAN resin composition. This difference in the acrylonitrile lacquer content lacquer of the two resins should lacquer not be too large, otherwise poor compatibility, cause cracking of the rubber lacquer and the resin interface. ABS resin molding process available injection molding, extrusion, vacuum, blow and roll as the plastic, but also mechanical, lacquer adhesive, coating, vacuum evaporation method such as a secondary processing. Due to its excellent overall performance, more extensive use, mainly for engineering materials, can also be used for family living appliances. Because of its good oil and acid, alkali, salt and chemical reagents and other properties, and has an electroplating, metal plated layer has good gloss, light weight, low price, can be used to replace some of the metal. Also many varieties of synthetic self-extinguishing and resistant type, etc., to suit a variety of purposes. PET: polyethylene terephthalate and ethylene terephthalate polymer. English abbreviation for PET, primarily for the manufacture of polyethylene terephthalate fibers (Chinese brand name Dacron). The fibers of high strength, good wear performance of its fabric, is currently the highest in the production of a variety of synthetic fibers, in 1980 the world production of about 5.1 million tons, accounting for 49% of the height of the symmetry properties of the molecular structure of the world's total production of synthetic fibers and for phenylene chain rigidity to the polymer lacquer having a high crystallinity, high melting temperature and insoluble in common organic solvents characteristic melting temperature of 257 ~ 265 ; increases its density increases with the degree of crystallinity, amorphous state density of 1.33 g / cm ^ 3, the improved crystallinity, the fiber density of 1.38 to 1.41 g / cm ^ 3 after stretching from the X-ray studies, the calculated density of the crystals is complete 1.463 g / cm ^ 3. Glass transition temperature lacquer of the amorphous polymer was 67 ; crystalline polymer is 81 . Heat of fusion of the polymer is 113 to 122 J / g, the specific heat capacity of 1.1 to 1.4 J / (g. ON), a dielectric constant of 3.0 to 3.8, a specific resistance lacquer of 10 ^ 14 ^ 11 10 ohms. Cm. PET is not soluble in common solvents, corrosive only soluble lacquer in some organic solvents such as phenol, o-chlorophenol, m-cresol, a mixed solvent of trifluoroacetic acid, PET fiber weak base stability. Applications are mainly made of synthetic materials. Short fibers with cotton, wool, linen blend, made of textiles or clothing with a cloth interior; filament lacquer silk garments lacquer do or industrial wire, such as for cloth, tire cord, parachute, conveyor belts, safety tape. Film can be used for film base for photographic film, audio tape. Injection molding the packaging container lacquer do. PVC: Polyvinyl chloride is a chlorine atom using a polyethylene of a hydrogen atom in the polymer material. The biggest feature is the flame-retardant PVC, which is widely used in fire protection applications. However, polyvinyl chloride is released during the combustion of hydrochloric acid and other toxic gases. Structure: - CH2 - CHCl - CH2 - CHCl - CH2 - CHCl - POM: polyoxymethylene polyoxymethylene scientific name, is a thermoplastic crystalline polymer. English abbreviation for POM. The formula CH-O, 1942 years ago, most of the formaldehyde polymer obtained by the polymerization lacquer degree is not high, polyoxymethylene glycols HO CH OH depolymerization easy to heat, where = 8-100 is paraformaldehyde; over for the 100 - POM after 1955 years ago, DuPont obtained from polymerization of formaldehyde formaldehyde homopolymer, ie POM, trade name Delrin. Celanese's departure from the United States trioxymethylene prepare dioxolane or with a small amount of ethylene lacquer oxide copolymer acetal copolymer that is the trade name Celcon. lacquer Properties POM easy crystallization degree lacquer of crystallinity of 70%; high temperature annealing to increase crystallinity. POM melt temperature of 181 , density of 1.425 g / cm. Formaldehyde copolymer melting point of about 170 . POM glass transition temperature lacquer of - 60 . Phenolic compounds are best solvent polyoxymethylene. Learned from the study of melt index, POM narrow molecular weight distribution. In addition to strong acids, oxidants and phenol, lacquer the acetal copolymer for other chemical reagents are stable, while POM also concentrated ammonia instability. A stabilized polyoxymethylene can be heated to 230 still no significant decomposition. POM available compression, injection, lacquer extrusion, blow molding methods, lacquer the processing temperature is 170 ~ 200 ; machining can also be used, but also welding. Products lightweight, hard, rigid and flexible, dimensional stability, low friction coefficient, lacquer low water absorption, good insulation properties, and resistance to organic solvents; may be used in a wide temperature range (-50 ~ 105 ) and humidity range; Under the action of various solvents and chemicals, lacquer and the holding time under heavy load and stress properties of the same loop.