A novel barrier chemical coating was formulated and developed by using an organic and inorganic sol-gel process. In this work, a hybrid solution was prepared using different percentages of cross-linker into a polyvinyl alcohol and Tetraethyl orthosilicate to improve the barrier properties of biaxial oriented polypropylene (BOPP) films. The TGA results showed that thermal stability had been enhanced after incorporating tetraethyl orthosilicate as inorganic materials. The transparency of coated films showed enhanced e.g. haze percentage, which improved about 12% and gloss properties were for 90 GU. The coated side and plain side COF were measured at about 0.4, COF is an important slip property at the end-use application. After coating, printing properties were checked and found that the thickness and particle size of pigment were uniform and color strength was also suitable for the packaging applications. The oxygen transmission rate (OTR) properties have been improved from 1880 cc/m²/day to 0.9 cc/m2/day compared to a plain film. The water vapor transmission rate (WVTR) properties have been improved from 10 g/m²/day to 5.9 g/m²/day a plain film. The application of the films showed an excellent barrier for bread packed in coated film and checked for nine days. The results showed that micro-organism was reduced by enhancing the barrier properties by applying the coating on film.

使用有机和无机溶胶-凝胶工艺配制和开发了一种新型阻隔化学涂层。在这项工作中，使用不同百分比的交联剂在聚乙烯醇和原硅酸四乙酯中制备混合溶液，以提高双轴拉伸聚丙烯 (BOPP) 薄膜的阻隔性能。TGA 结果表明，加入原硅酸四乙酯作为无机材料后，热稳定性得到提高。涂层薄膜的透明度显示出提高，例如雾度百分比，提高了约 12%，光泽度为 90 GU。涂层面和平面面的 COF 测量值约为 0.4，COF 是最终用途应用中的重要滑动特性。涂布后，检查印刷性能，发现颜料的厚度和粒径均匀，颜色强度也适合包装应用。² / 天至 0.9 cc/m2/天，与普通薄膜相比。普通薄膜的水蒸气透过率 (WVTR) 性能已从 10 g/m ² /天提高到 5.9 g/m ² /天。薄膜的应用显示出对包裹在涂层薄膜中的面包具有极好的阻隔性，并经过了 9 天的检查。结果表明，通过在薄膜上涂覆涂层来增强阻隔性能，从而减少了微生物。