Polylactic acid based molded product and production method therefor

摘要: PROBLEM TO BE SOLVED: To provide a polylactic acid based molded product which excels in heat resistance, and enables molding with good productivity the production cycle actual production, method. SOLUTION: A sheet is formed by extruding resin composition containing having content of D- configurational isomer ≤5 mol% an amount residual lactide 0.1-0.6 mass% as major component 1-25 nucleating agent into sheet. Before fabrication or simultaneously fabrication, provided treatment at treating temperature 120-150°C for 1-30 seconds to obtain product. The has thermal properties difference between absolute values quantity crystal fusion ΔHm programmed crystallization ΔHc ≥25 J/g, when measured differential scanning calorimeter under condition programming 20°C/min, crystallinity X-ray measurement ≥35%, rate 130°C ≥0.05 min -1 . COPYRIGHT: (C)2003,JPO