Daqing Petrochemical Coating Grade PE Resin Successfully Developed

Sinochem News on April 10, learned from the new product research and technical service center of Daqing Petrochemical Company that the company's 19G improved products for coating-grade low-density polyethylene (PE) special resin have been well received and highly recognized by users

Wang Wenyan, senior engineer and project manager of the Daqing Chemical Research Center of the Petrochemical Research Institute, introduced that the high-pressure low-density polyethylene plant of Daqing Petrochemical Company is the first device in the country to use the tubular method to produce high-end coating products.

The low-density polyethylene R&D team of the Daqing Center of the Petrochemical Research Institute cooperates closely with the high-pressure workshop of Daqing Petrochemical Company and the technicians of East China Chemical Sales Company to form an innovative team integrating production, research and sales, dedicated to high-pressure process research and high-end high value-added new product research and development , to launch innovative challenges to the restricted area of ​​high-voltage installations with severe operating conditions

Relying on two sets of high-pressure low-density polyethylene plants of Daqing Petrochemical Company, the innovation team innovatively established a device correction parameter system, realized the quantitative correlation between the theoretical calculation of free radical simulation and the operation parameters of the device, improved the control ability of the core indicators of the product, and built an integrated platform for device optimization control

"We also investigated the feeding method in combination with the established device correction parameter system, constructed the synergistic effect of the oxygen-induced temperature-sensitive section and the monomer, and realized the regulation scheme of long and short branched chain topology, breaking through the special resin for tubular low-density polyethylene coating.

The process optimization scheme of "differentiated adjustment of initiators by subsections and multi-methods" independently developed by the innovation team breaks through the previous single raising and lowering temperature regulation method under the severe conditions of high temperature and high pressure, and adopts the process joint control method to realize the low density polyethylene molecular chain.

The successful improvement of this process not only makes the product have the advantages of good toughness, strong adhesion, uniform film formation, good hygiene, etc.

It is understood that the improved material is currently being transported to East China and Southwest China for trial processing

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　　Coating-grade low-density polyethylene special material, that is, the use of rollers to coat the low-density polyethylene melt on the substrate.

　　The production technology can be applied to domestic high-pressure polyethylene production equipment