Bidirectional stretch polyethylene BOPE raw material. Xu Ziyi Photography
Recently, China Science News learned that the bidirectional stretch polyethylene (BOPE) special materials and film products independently developed by the Beijing Chemical Industry Research Institute affiliated to Sinopec Corp. have been evaluated to achieve world-leading performance indicators and filled the domestic gap. BOPE film can be used in many fields such as rice vacuum packaging, quick-frozen food packaging, beverage transparent flexible packaging, etc. Compared with traditional polyethylene film, it can reduce the amount of material used by 30%, and change plastic packaging from "cotton clothing" to "T-shirt".
According to reports, BOPE film is a high-performance film product made of polyethylene resin with a special molecular structure design through a special biaxial stretching process. Compared with traditional polyethylene film, BOPE film not only has better toughness, stiffness, puncture resistance and low temperature impact resistance, but also has better transparency, printing performance and higher production efficiency. In addition, the “BOPE+CPE†all-polyethylene packaging products made of cast polyethylene (CPE) special materials and films that also have Sinopec's independent intellectual property rights also have significant advantages in recyclability and recycling.
Wu Changjiang, the project leader of the "Key Technical Problem of Functional Polymer Membrane Materials" and the president of Beijing Chemical Industry Research Institute, a major project of Sinopec, introduced that the domestically produced BOPE special materials and film products that have been put on the market this year are the results of the company's intensive research and development. Successfully broke the foreign monopoly. (Ji Hongmei)
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