Publish Time: 2022-02-08 Origin: Site
PVA film products belong to green environmental protection materials. The biooxygen consumption (BOD) of PVA was measured to be much lower than that of starch, and after five days of biodegradation of Airvol's PVA product, the amount of BOD measured by Air Products of America was less than 1% of the total initial BOD. Biological tests have shown that PVA is not toxic.