Articles

Special space rubber – polyisoprene and polybutadiene The discovery that the Ziegler-Nata (Lithium alkyl) catalyst catalyzes the polymerization of isoprene or butadiene in such a way that the cis structure is mainly obtained made it possible to simulate natural rubber by synthesis. Polyisoprene (IR) rubber, which is quite similar to natural rubber, is even superior in some respects such as better color, more uniform quality, less odor, faster processability and mixing, better foaming and foil, excellent mold flow and controlled molecular weight. In contrast, tear strength, viscosity and tensile strength of natural rubber are higher. Polyisoprene is commercially produced and used alone or in combination with natural rubber. 1 and 4 – Polybutadiene with a high percentage of cis is soft, easily soluble. It has low waste and good abrasion resistance. On the other hand, 1 and 4-polybutadiene has a high percentage of trans, hard, crystalline and has low solubility.…

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The reason of Volatility of oil and RPO The decline in oil inventories America in compare of what they expect before High demand of gasoline and petroleum product  by starting the summer 10% Growth in producing petroleum product According to International Energy Agency Energy (IEA) growth in production of non opec refinery’s Growth in Dollar index Libya’s national oil company increased production by one million barrels per day by the end of July. Rubber process oil price depends on different factors Rubber process oil prices depend on crude oil price and crude oil price has an international price which depends on many factors as below mentioned: In high season of rubber process oil when most of the refineries have been sold out their extract oil and may don’t have cargo for around 1-3 month prices of other refinery will goes up . If there was any damage or explosion in…

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Styrene butadiene rubber Origin of styrene butadiene rubber Polybutadiene was one of the first elastomers or tires you had, which is 0% of butadiene production, used to make tires and tires, and 25% to 30% of it is added as an additive to other items than mechanical mechanics. They have to improve. The annual production of this polymer in 2001 is more than 2.1 million tons, which if drugs are used, it is in the second place among tires, after SBR styrene butadiene rubber or styrene butadiene rubber. Polybutadiene was first polymerized in 1910 by a Russian scientist named Sergei Vasilyevich Lebedo Sergei Vasilyevich Lebedev. In 1926 he invented a process for the production of butadiene from ethanol, and in 1928 he was able to use sodium as a catalyst to develop the production of polybutadiene. According to this discovery, the Soviet Union was the first country to succeed in…

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Mono Ethanol amine Specifications of monoethanolamine Monoethanolamine derivatives can be found in biological polymers such as lipids, where animal and plant physiological processes such as seed germination, chloroplasts, flowering process, etc. must be performed. Ethanolamine compounds also belong to a group of amino acids. Other names for this product include ethanolamine, including monoethanolamine, 2-aminoethanol and MEA. Types of ethanolamines Monoethanolamine Diethanolamine triethanolamine Specifications of monoethanolamine Properties of MEA Name of product Ethanol amine Molecular weight 61.08 g / mol density 1.01 g / cm3 Boiling point 170 ° C Melting point 10.3° C Appearance Liquid Odour Smells like ammonia Purity 98 to 99 % Solubility in water Solution In general, the production of ethanolamines, which is a class of amines, consists of three stages Synthesis Ammonia distillation Isolation of different species of ethanolamines This product is created by the reaction between ethylene oxide and aqueous ammonia solution, which causes the…

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