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of polylactic acid SPI identification

Aug 17, 2018

The digital identification code for Polylactic acid by the American Plastics Industry Association (Society of Plastics Industry,spi) is "7". In Belgium, the use of polylactic acid as a pilot country has begun to be utilized. The cyclic use of polylactic acid is not quite the same as other polymers, waste polylactic acid plastic will be collected in special containers, through pyrolysis, hydrolysis and other methods to degrade into small molecule monomer, and then through the manufacturer of monomer lactic acid into a certain performance of polylactic acid raw materials, once again into the market use.