Greetings,

I have just entered the subject of food packaging film synthesis. I encountered a situation like this, although there were those who wrote cacl2 in the literature, there were those who did not. Although I prepare films containing cacl2 or cacl2-free films, when I make swelling tests of the films, the films dissolve instantly in water. Is it necessary to use glutaraldehyde or epichlorhydrine? What would be your advice? Thanks in advance

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