Analysis on the development trend of polycarbonate

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Analysis on the development trend of domestic polycarbonate production devices

recently, Qingdao University of science and technology and Gansu Yinguang company have jointly developed a complete set of Engineering Technology for phosgene polycarbonate (PC), which has passed the continuous 72 hour production assessment of the device, obtained qualified products, and developed a process software package with an annual output of 20000 tons of PC plastic. Polycarbonate (PC) is a kind of thermoplastic engineering plastic with excellent comprehensive performance, which is one of the main domestic carbon fiber precursor manufacturers. It has excellent optical transparency, impact strength and thermal stability. It is a general engineering plastic with the fastest growth rate in recent years. Since 2005, China has been the country with the largest PC demand and the fastest growth in the world, but so far there is no 10000 ton PC production device with independent intellectual property rights in China

it is reported that the advanced PC manufacturing technology has always been in the hands of several large foreign companies, and they do not transfer technology to China. Therefore, develop the production process technology of 10000 ton polycarbonate per year, break the monopoly and blockade of foreign PC manufacturing technology, and promote the development of China's national polycarbonate industry. It has self-locking, which is generally inversely proportional to the transmission efficiency, and has significant social and economic benefits. The R & D team of the Institute of computer and chemical engineering of Qingdao University of science and technology worked closely with Gansu Yinguang company, and based on the existing pilot plant, studied the key processes and key process units through theoretical analysis, simulation and optimization, on-site testing and experiments, and established the experimental plant for phosgene polycondensation of PC, PC washing and separation pilot plant and pilot plant A pilot plant with an annual output of 1000 tons of polycarbonate ejector and a pilot plant for polycarbonate fluidized bed drying were used to carry out pilot tests on PC pneumatic conveying, and the best operating parameters of PC pneumatic conveying were obtained

according to the above research results, scientific researchers established mathematical models and amplified the process by means of computer simulation and optimization, integrated the whole process and energy of the process by using the process system integration theory, and developed a process software package with an annual output of 20000 tons of PC plastic. The level of safety, environmental protection, automatic control and energy consumption reached the level specified in the project

has brought confidence to extruder enterprises. 1. Crystalline engineering plastics has increased significantly in China in recent years, but this year, affected by the economic environment, the market performance is difficult to be satisfactory, and the manufacturer's offer has fallen all the way. Zhuochuang information tracking data shows that the manufacturer's offer this year has fallen by yuan/ton compared with the same period last year; Recycled PC fell by yuan/ton for various reasons, but in the long run, PC materials are still favored by many manufacturers because of their excellent characteristics

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