What industry is mainly used for PVC?
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PVC, full name, the main ingredients are polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, etc. The upper layer of this surface is paint, the main component in the middle is polyvinyl chloride, and the lower lower layer is the back coating adhesive. It is a synthetic material that is well -loved, popular and widely used in the world today. Its global usage has ranked second among various synthetic materials. According to statistics, in 1995 alone, the production volume of not PVC in Europe was about 5 million tons, while its consumption was 5.3 million tons. In Germany, the average production and consumption of PVC is 1.4 million tons. PVC is being produced and applied worldwide at a 4%growth rate. In recent years, PVC's growth in Southeast Asia is particularly significant. This is due to the urgent demand for infrastructure construction in Southeast Asian countries. Among the materials that can produce 3D ingredients, PVC is the most suitable material.
PVC can be divided into soft PVC and hard PVC. Among them, the hard PVC accounts for about 2/3 of the market, and the soft PVC accounts for 1/3. Soft PVC is generally used in the surface of the floor, ceiling, and leather, but because the soft PVC contains soft agents (this is also the difference between soft PVC and hard PVC), it is easy to become crispy and not easy to save, so the scope of use is limited. Hard PVC does not contain soft agents, so it is flexible, easy to form, is not easy to be crispy, non -toxic and pollution, and long preservation time, so it has great development and application value. The following is referred to as PVC. The essence of PVC is a vacuum -sucking film, which is used for surface packaging of various panels, so it is also called decorative membrane and glue film, which is used in many industries such as building materials, packaging, and medicine. Among them, the building materials industry accounts for 60%, followed by the packaging industry, and other small -scale applications.
PVC is a polyvinyl chloride plastic, which is bright, corrosion -resistant, and durable. Due to some toxic auxiliary materials such as plasticizers and anti -aging agents during the manufacturing process, its products generally do not store them. Food and medicine.
PVC is actually a polymer of ethylenel.
It simply speaking, the water solution of salt has chemically decomposed at the current action. This process produces chlorine, harsh sodium and hydrogen. Refined, cracking oil or gasoline can produce ethylene. When the chlorine and ethylene are mixed, dichlorohylinthylene is generated; dichloroethylene can also be converted to produce chloride groups, which is a basic component of polyvinyl chloride. The polymerization process connects the chloride base molecules together to form a polyvinyl chloride chain. Poinyl chloride generated in this way is white powder. It cannot be used alone, but can generate many products with other ingredients.
The chloride ethylene was originally synthesized in the laboratory in 1835. Polyethylene was synthesized by Baumann in 1872. However, it was not until the 1920s that the first commercial product of polyvinyl chloride was produced in the United States, and in the next 20 years, Europe began to produce large -scale production.
Premia Bylite has outstanding characteristics (petroleum, limestone, coke, salt and natural gas), mature manufacturing process, low price, extensive use, etc. The second largest general resin of resin accounts for 29%of the world's total resin consumption. Polyvinyl chloride is easy to process, and can be processed by molding, layering, injection molding, squeezing, pressure extension, blow molding, etc. Polyvinyl chloride is mainly used to produce plastic software such as artificial leather, film, wire protective cover, and plastic hard products such as plates, doors and windows, pipelines, and valves.
The pipanic Bylite has flame retardant (flame retardant values above 40), high chemical resistance (resistant to concentration, 90 % sulfuric acid, concentration of 60 % nitric acid and concentration 20 Ur % of sodium hydroxide), mechanical strength and good insulation. However, its heat resistance is poor, the softening point is 80 ° C, and the color is decomposed at 130 ° C, and HCI is precipitated.
PVC has excellent chemical corrosion resistance, electrical insulation, flame retardant, high quality, high strength and easy processing. It is important that its downstream industries are currently in the stage of high -speed development, which greatly drives the demand for PVC. According to the "National Chemical Building Materials Industry" Fifteenth Plan and the 2010 Development Planning Outline "prediction, by 2005, 70%of the building drainage pipelines in the country will use plastic pipes, and 50%of the building rainwater pipeline will use plastic pipes with plastic pipes. 10%of the urban drainage pipes use plastic pipes, 60%of the construction of water, hot water supply and heating pipelines use plastic pipes; 50%of urban water supply pipes adopt plastic pipes, 70%of village water supply pipes use plastic pipes, urban gas pipelines (low -pressure pipes for medium -low pressure pipes (medium and low pressure pipelines ) 20%of plastic pipes, 80%of the wire protective pipes use plastic pipes. Plastic pipelines share more than 50%in various pipeline markets across the country. During the "15th" period, the state will invest about 120 billion yuan for urban drainage construction. It is expected that my country will enter the climax of the construction drainage pipe network in the next 20 years, creating unprecedented development opportunities for plastic buried drainage pipes. In addition, PVC products are also widely used in new doors and windows. By 2010, the country's energy -saving areas and buildings were implemented. The proportion of plastic doors and windows reached 60 %, the coastal areas reached 40 %, and the market share of plastic doors and windows in the country reached 30 %. At the same time, with the increase of agricultural investment, the demand for agricultural products such as farmland output tube, spraying pipe, agricultural tools, farmland film, and shed film has also increased, which has also driven the demand for PVC. All these have created good opportunities for the rapid development of the PVC industry. It is expected that before 2010, my country's PVC demand will increase at about 13%per year.
The widely used in passenger cars, train carriage ceiling, box core layer, interior decoration board, building exterior wall board, interior decoration board, office, residential, public places building compartments, commercial use, commercial use Decorative racks, dust -free rooms, ceiling panels, mesh board printing, computer characters, advertising labels, exhibition boards, logo board album boards and other industries and chemical anticorrosive projects, thermal parts, cold storage plates, special cold -cold projects, environmental protection, environmental protection, environmental protection, environmental protection, environmental protection, environmental protection, environmental protection, environmental protection, environmental protection, environmental protection Plate, sports equipment, breeding materials, seaside moisture -proof facilities, water -resistant materials, art materials and various light partitions instead of glass ceiling.
Want to learn more, Baidu for a PP forum, many information about thin film, there are many friends who do PE, PET, CPP, BOPP, PVC, PA, PS thin film
Mainly used for building materials, such as the water supply drainage pipe, plastic steel profile, waterproof coil material, etc.
The pipe materials include medium wealth, joint plastic, conch, etc.
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