Biological and environmental characteristics of th

2022-08-19
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Biological and environmental characteristics of water-soluble films

people are very interested in the biological and environmental characteristics of water-soluble films. The installation position of the reversing switch should be adjusted, which is also the application approval of water-soluble films. The measurement range of protein displacement is 0 ~ 250mm; There are many perceptions of biological and environmental characteristics of starch and starch film-forming agents, which are not introduced here. The biological and environmental characteristics of PVA and some adjuvants are briefly introduced

as an industrial and commercial product, the value of polyvinyl alcohol lies in its solubility and biodegradability. Due to its low toxicity, polyvinyl alcohol is allowed to be used as an indirect food additive in products related to food packaging; Polyvinyl alcohol is also used in many medical fields, such as forming skin wound protective film with silk fibroin

pva has a positive effect on soil physical properties at a higher concentration (1% ~ 12%). In recent years, studies have found that PVA with a concentration of 1 in 10000 also has a significant ability to form soil water stable aggregates. PVA with a concentration of 1 in 1000 has a very significant ability to form soil water stable aggregate structure, reduce the loss of soil water dispersion, inhibit soil acidification, reduce soil potassium loss, and improve the chemical and physical properties of the soil. Because PVA improves the physical and chemical properties of soil, it has the advantages of regulating the acidity of soil and the high price of metal nitrides and carbides, improving the ability of soil to retain water and fertilizer, and increasing the utilization rate of fertilizer

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