Recently, Maoming Petrochemical by optimizing the No. 2 high-pressure polyethylene compressor conditions, optimize the pulse cycle and depth, temperature control temperature peak, improve the production capacity, successful trial production of 500 tons of polyethylene new products 2420H, new products per ton price Than the general material is about 1,200 yuan, is expected to efficiency over 600,000 yuan. The product is low crystal point high transparency plastic, the product has good liquidity, chemical stability and other characteristics, higher than the price of GM, mainly for the production Mobile phone screen and other electronic screen film, the market prospects. The success of the product trial production will further enrich the polyethylene product structure, is expected to become a new benefit of Maoming Petrochemical growth point.
'Our new products produced in September - high transparent mobile phone film material 2420H through the Institute of trial production test, the crystal point from the original 8 down to about 3, the product of the performance test in full compliance with the manufacturers Requirements. 'According to Maoming Petrochemical Chemical Sub-high pressure workshop technology director Guo Qinsheng said.
In recent years, with the mobile phone, IPAD and other electronic products replacement replacement faster and faster, these LCD screen film demand is also increasing, high transparency, low crystal point of low-density polyethylene products 2420H production of LCD film by Downstream production enterprises love. Guo Qinsheng visited the investigation and found that such products in the Pearl River Delta have a larger market demand, but the supply is always inadequate.
This new product is not easy, after the beginning of 2015, the sales feedback on the market for high transparent LCD electronic screen 2420H large demand, and the price of plastic than ordinary plastic about 1,200 yuan per ton.Chemical division production has allowed high-pressure workshop Trial production of this new brand, but because it is the first trial production of this grade, the characteristics of this new product did not find out, try to produce products without large-scale use of the manufacturers.
At the beginning of this year, Guo Qinsheng attended the group polyethylene expert seminar, the company's experts to Guo Qinsheng made such a request: for this year to continue trial production 2015 unsuccessful LCD electronic screen film special material 2420H.
'Because this LCD screen film on the product of the crystal point requirements are very strict, every 10cm2 can not exceed three crystal points, this is a test of our reactor reactor parameters of the control, after the failure of production in 2015, because the product of the crystal point Too much, fail to meet the requirements. 'Guo Qinsheng before the failure of a bit can not be reconciled.
After returning from the Polyethylene Expert Workshop, Guo Ching-sheng improved the integration of a new formulation through discussions with the Institute's professors and access to a large number of literature.
In June this year, Guo Qinsheng let the workshop craftsman track the fisheye of the device product changes, the fish eye can directly lead to the product of the crystal point increase, so must control the product of the fish eye.In September, he convened the workshop technical backbone, By optimizing the parameters of the adjustment device, the fisheye of the product is almost zero.When preparing for trial production 2420H the week before, do not worry Guo Qinsheng team to track the product every day fisheye situation, to ensure that the device in the best condition.
Guo Qinsheng took the lead in the central control room, by optimizing the reactor four temperature range, control the reaction pressure to maintain the best value, optimize the adjustment of hot water system, speed up the reactor heat removal capacity, to avoid the reactor sticky wall. They through every 30 minutes Sampling once sent to the chemical test, and finally in the conversion of 3 hours after the satisfaction of the product.
'In fact, at the beginning of the first time to send pellets to the chemical test, the product out of the crystal point actually there are 8, we are a bit collapsed, after all, ready to produce this new product for 3 months. We have been mainly affected by the analysis of the factors in the low-decker tank.Although the reactor temperature peak before the control in the lower temperature range, but the product in the low-grade tank or the possible cross-linking reaction, resulting in increased crystal point of the product. Timely adjustment of the fourth temperature peak export temperature and low sub-tank level, by optimizing the material in the low decanter residence time, reducing the product of the crystal point, has been qualified new products. 'High pressure workshop craftsman Zhao Long happy Said.