| 摘要 |
PURPOSE: A water-resistant polyvinyl alcohol film for packing with water resistance and a manufacturing method thereof are provided to reduce solubility and degree of swelling for water. CONSTITUTION: A water-resistant polyvinyl alcohol film for packing comprises polyvinyl alcohol resin, silane compound, and acrylic acid. 0-20 weight% of silane compound and 5-30 weight% of acrylic acid are included based on the polyvinyl alcohol resin. A manufacturing method of polyvinyl alcohol film comprises the following stages: performing a modification reaction by adding silane compound to the polyvinyl alcohol resin; performing a crosslinking reaction by adding acrylic acid to the resin; and obtaining a film by heat-treating the obtained resin at 60-125 deg. Celsius for 10 minutes -2 hours.
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