Environmental Effect of Polyvinyl Alcohol PVA

Today environmental pollution is a major concern of our society. They include pollution of atmosphere, water bodies, and soil. Environment pollution is a phenomenon where human discharge materials or energy in excess of its self cleaning capacity to environment directly or indirectly, which reduces the quaUty of the environment and has a negative effect on human survival and development, and the ecological system and property. The research on PVA film is a focus these days because it has many outstanding qualities such as water solubility and degradabihty. 

Water-soluble PVA film belongs to green eco-friendly packaging materials. On packing, it has some features as follows  

Environmental protection and safety, thorough degradation, and eHminating the problem of disposal of packaging wastes by producing carbon dioxide and water as the final degradative products. 

It is safe and convenient for appHcation, and it can prevent the packed products from contacting the users directly during application. In addition, we can measure exactly and guard against wasting if it is used. In addition it is nontoxic and pollution free. 

The water-soluble PVA film has comparatively higher mechanical performance and heat seal strength as well as outstanding gas barrier property and maintains 

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