At present, BOPE film has been applied and developed in the fields of daily chemical packaging, food packaging, and agricultural film, and has achieved certain results. The developed BOPE film applications include heavy packaging bags, food packaging, composite bags, daily chemical bags, white films, etc.
Among them, the application of BOPE composite bags is relatively successful at present. After BOPE is compounded with other substrates, the packaging material has the characteristics of sprint resistance, impact resistance, high strength, and low temperature resistance.
BOPE film still maintains the relatively good low-temperature resistance of PE resin, and the glass transition temperature can reach tens of degrees below zero. Therefore, BOPE film can maintain relatively good low-temperature impact and pinhole resistance, which can effectively reduce low-temperature food package breakage. By comparing the low-temperature impact performance of BOPE film and existing packaging, it can be seen that the low-temperature impact strength of 30um BOPE film at - 30°C can reach the strength of food packaging prepared by existing 90umPE blown film, so BOPE film is used for freezing High-quality meat and seafood have certain advantages.
At present, it is more realistic to use BOPE as the outer layer and CPE or PE blown film as the inner layer to compound the all-PE packaging bag. BOPE provides puncture resistance and tensile strength, so that the packaging bag prepared is environmentally friendly and easy to recycle. At the same time, the material feels soft and not easy to scratch. It can be used in washing powder packaging, mother and baby products, etc. In addition, efforts can be made to develop BOPE's aluminized film, matte film, and even BOPE's high-shrinkage film.
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Post time: Feb-14-2023