Tao Hung Panzhihua polyethylene sheet polyethylene wear-resistant materials Figure MILL

Tao Hung wear-resistant materials Co., Ltd. Shandong introduce you to ultrahigh molecular weight polyethylene is excellent overall performance engineering thermoplastics having a linear structure. UHMWPE its development is very rapid, 80 years ago, the world average annual growth rate of 8.5%, after the 1980s, the growth rate as high as 15% to 20%. Moreover, China's average annual growth rate of over 30%. 1978 World consumption of 12,000 to 12,500 tons, while in 1990 the world demand of about 50,000 tons, of which the United States accounted for 70%. 2007--2009, China has gradually become the world's plastics factory, super molecular weight polyethylene industry development is very rapid, the following history: in the 1930s it was suggested that the first ultrahigh molecular weight polyethylene fibers on the basic theory; gel spinning France and the emergence of plasticized spinning process to make ultra-high molecular weight polyethylene made a major breakthrough in technology; the 1970s, the University of Leeds Capaccio and Ward first developed a molecular weight of 100,000 molecular weight polyethylene fibers; 1964 China successfully developed and put into industrial production; in 1975 the Netherlands made use decahydronaphthalene solvent invented the gel spinning process (Gelspinning), successfully prepared UHMWPE fiber, and applied for a patent in 1979. After that through the efforts of a decade of research, we confirmed gel spinning method is an effective method for producing high-strength polyethylene fibers, having industrialization prospects; 1983 Japan gel extrusion ultra-fold stretching, paraffin as solvent, producing ultra-high molecular weight polyethylene fiber; ultra high molecular weight polyethylene pipe in China in 2001 by the Ministry of Science and Technology National Science of the word document (2000) No. 056 focus on promoting national scientific and technological achievements, is a chemical class of new materials and new products. State Planning Commission of Science and Technology ultrahigh molecular weight polyethylene pipe project as a high-tech industry focus areas polyethylene sheet priority to the development of the current selection of raw material for manufacturing is very important. To change the raw material die poor mobility difficulties caused by gaseous matter the issue of increased choice in the selection of raw materials to add some lubricant materials, lubricant selection mainly stearic acid and salts thereof, even so produced a sheet material no bubbles. Here, we will explain the production process to explain the lower polyethylene sheet polyethylene sheet with ultra high molecular weight polyethylene as raw materials, high-temperature high-pressure molding process after melting into the legal system. Been mixed - rolling - Sintering - Cooling - high pressure setting - Stripping - forming. Polyethylene sheet not only retains the ultra high molecular weight polyethylene sheet low coefficient of friction, high impact strength, good self-lubricating properties and other quality, and performance to meet customers' different needs. Such as ultra high molecular weight polyethylene sheet ignite relatively high degree of difficulty, after departing from the fire source can be automatically extinguished within 3-10 seconds, and does not drip, a small amount of smoke, vapors harmful to humans, the national fire-retardant materials laboratory detection After that the product is environment-friendly materials, and the promotion of high value. UHMWPE sheet is now widely used in China's electric power, coal, steel, cement, coke and other industries, effectively prevent fire phenomenon due to spontaneous combustion of coal and other factors. Ultra high molecular weight polyethylene sheet impact resistance (impact resistance ranks first in plastic), good corrosion resistance, excellent chemical resistance, lower density than other thermoplastics, low friction coefficient, superior release properties, very bottom water absorption, excellent electrical insulation and anti-static properties, moderate mechanical strength, stiffness, creep resistance, excellent mechanical processing performance, continuous nature, good resistance to high energy radiation. UHMWPE liner as a new engineering plastics, set a variety of excellent performance in a ranking 1. wear plastic crown, four times higher than nylon 66 and PTFE, six times higher than carbon steel; impact strength plastic in the first column, the PC 2 times, 5 times ABS, and can maintain a high toughness at liquid nitrogen temperature (-196 ℃).