Looking for information on domestic HDPE manufacturers, process technologies, plant capacity, grade specifications, etc
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This post was last edited by Thank goodness you're here on 2016-1-28 at 13:21. I work in a processing plant, focusing on the research and development of HDPE and PP modifications, and I would like to learn more about the synthesis processes to facilitate my future career development. I am seeking the following information: (1) The latest HDPE resin manufacturers, the process technologies they use, the production capacity of their facilities, and the corresponding product grades. All I know is information from before 2010, and it’s rather scattered and incomplete; I hope some experts with relevant data can provide it! (2) The advantages and disadvantages of the current mainstream HDPE polymerization processes, particularly their impact on the properties of the resin, to facilitate material selection for modification in the future. There are some general comparisons available online; I wonder if there are any more professional and detailed ones! I have worked on HDPE, PP filling, crosslinking, and crystallization. If there are others in the same field, I hope to get to know them and exchange ideas!
There are three main categories of HDPE production processes: the gas-phase method (simple process, low investment, average quality of the product, moderate stability in continuous production, slow and difficult changes in product grades, almost no bimodal products, low added value of the product; pipes and hollow products are not as good as those produced by the other two methods, while this method is better suited for producing films). The loop tube slurry process features a moderate process flow, good stability in continuous production, low energy consumption, fast and easy grade switching, a wide range of single- and double-peak products; it is particularly excellent for producing hollow products, and its films and pipes also possess strong competitiveness. ) Calorimetric method (low requirements for raw materials, mild production conditions, relatively complex process, high energy consumption, average stability in continuous production, simplest grade switching, capable of producing products with single, double, or multiple peaks, flexible for new product development; tube products and ring-type slurry process products are competitive, while hollow products are superior to those produced by the vapor phase method).