Transparent sc-PLA (stereocomplex polylactic acid) product with high degree of crystallinity and preparation method of transparent sc-PLA product

Transparent sc-PLA (stereocomplex polylactic acid) product with high degree of crystallinity and preparation method of transparent sc-PLA product

  • CN 104,788,921 A
  • Filed: 04/07/2015
  • Published: 07/22/2015
  • Est. Priority Date: 04/07/2015
  • Status: Active Grant
First Claim
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1. there is a preparation method for the Stereocomplex type poly(lactic acid) transparent article of high-crystallinity, it is characterized in that the processing step of the method and condition as follows:

  • (1) pulverous Stereocomplex type poly(lactic acid) is dried to water ratio lower than 200ppm;

    (2) dried Powdered Stereocomplex type poly(lactic acid) is put into the airtight cavity for product molding, utilize high-tension apparatus in 150 ~ 220 DEG C, pressurize 0.1 ~ 4.5h under the condition of 0.1 ~ 2.5GPa.

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