The new polyvinyl alcohol film patent formula and process recently developed by Polyval in the United Kingdom can significantly reduce the cost of Enpol extruded polyvinyl alcohol film.
According to Polyval, conventional polyvinyl alcohol films are produced using the solution casting process, which is extremely costly to process. Now Enpol film is produced by Enpol resin extrusion blow molding method. Enpol resin has a melting point lower than the decomposition temperature of polyvinyl alcohol (about 180°C). The company plans to produce and supply Enpol resin and transfer the film production technology. Now it has developed 10 brands. The processed film is soluble in water at different temperatures between 5 and 70°C. It can be used in a drainage system and can be used within three months. Biodegradable.
Source: China Chemical News
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