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First Time Manufactured by China on Ternary Copolymer Polypropylene Products
sourceChina Petroleum News
time2016/11/25
Recently, Dushanzi Petrochemical Company for the first time independently successful produce high value-added ternary copolymer polypropylene products, mastered the core production technology of this product basically, reducing the dependence on foreign patents. At present the device loads about 18 tons / hour, production in normally.
Ternary copolymerized polypropylene has better low-temperature sealing performance, wider heat-sealing window, better transparency, and anti-blocking property, and is suitable for high-grade film material, widely used in the process and manufacturing areas such as food packaging cooking bags, composite film, cigarette packaging film, shrinking film, metal composite film, etc.
In June this year, Dushanzi Petrochemical Company and foreign patent trader jointly trial production successfully. As the addition of butene, ternary copolymer products decreased isotacticity, melting point temperature decreased, when the polymerization temperature is close to the melting point of the polymer, it is easy to cause the sticking and blocking of the polymerization system, which makes the production of the products difficult and dangerous.
From October 27, Dushanzi Petrochemical Company combined with the last trial production experience, optimize the conversion process, modify the conversion operation card, optimize the operating parameters of the extruder on extrusion section, optimizef additive formulations. Through the use of new catalyst, butene and ethylene slowly adjust the amount of feed, adjust the reactor level control parameters and other methods, finally prevents the agglomeration, on October 30, the all indicators of products qualified.