Stein, H. L. (1998). Ultrahigh molecular weight polyethylenes (uhmwpe). Engineered Materials Handbook, 2, 167–171. UHMWPE is odorless, tasteless, and nontoxic.
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Pastoralism is the second base of Fasa's economy. A variety of livestock and dairy products, wool, leather, meat, are the products of the city. There is also an under construction petrochemical project in the city. The construction stated in 2012 and after the complete operation, It will produce Low density polyethylenes.
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1-Octene, 1-hexene, and 1-butene are used comonomers in the manufacture of polyethylenes. The advantages to such copolymers has led to a focus on catalysts that facilitate the incorporation of these comonomers, e.g., constrained geometry complexes. In this conversion, 1-hexene (red) is a comonomer in the formation of a modified polyethylene.
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The conductivity of such polymers is the result of several processes. For example, in traditional polymers such as polyethylenes, the valence electrons are bound in sp3 hybridized covalent bonds. Such "sigma- bonding electrons" have low mobility and do not contribute to the electrical conductivity of the material. However, in conjugated materials, the situation is completely different.
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Polyethylene consumes more than half of the world's ethylene supply. Polyethylene, also called polyethene and polythene, is the world's most widely used plastic. It is primarily used to make films in packaging, carrier bags and trash liners. Linear alpha-olefins, produced by oligomerization (formation of short polymers) are used as precursors, detergents, plasticisers, synthetic lubricants, additives, and also as co- monomers in the production of polyethylenes.
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One of the main environmental benefits of Green PE is the sequestration of roughly 2.15 tons of per ton of Green Polyethylene produced, which comes from the absorbed by the sugar cane while growing, minus the emitted through the production process. Renewable polyethylene is non- biodegradable and can be recycled in the same waste streams as traditional polyethylenes (HDPE, LDPE, LLDPE) as it is chemically identical.
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Commonly used polyethylenes can be classified into low density polyethylene (LDPE), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE). Among them, HDPE has better thermal, electrical and mechanical properties, while LDPE and LLDPE have better flexibility, impact properties and film forming properties. LDPE and LLDPE are mainly used for plastic bags, plastic wraps, bottles, pipes and containers; HDPE is widely used in various fields such as film, pipelines and daily necessities because its resistance to many different solvents.
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Quattor was a Brazilian petrochemical company headquartered in Rio de Janeiro. Founded on June 12, 2008, Quattor was the second largest petrochemicals in Brazil, behind only the Braskem and one of the largest petrochemical of the Americas. In 2009 the company was incorporated by Braskem, the largest Brazilian petrochemical and one of the largest in the world. Quattor was result of the union of assets UNIPAR(60%) and Petrobras(40%), and now the set of five companies, Quattor Participações SA, Quattor Basic Chemicals SA (ex- Union Petrochemical SA), SA Quattor Petroquímica (formerly Suzano Petroquímica SA), Polyethylenes Union SA and Rio Polímeros SA. The company has 11 production units located in three Brazilian states: Rio de Janeiro, São Paulo and Bahia, in addition to the support office in São Paulo.
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