Eastar MN021 Natural Eastman Chemical Company Copolyester Eastar Copolyester MN021 Natural has been tested for FDA/ISO 10993 and USP Class VI Biological Evaluation testing after Gamma and EtO sterilization. It is a thermoplastic condensation copolymer produced by a continuous melt-phase polymerization process followed by a solid-state polymerization process. It has been crystallized.

PETG,PCTG,PCTA都屬于是一種非結晶型共聚聚酯的高透明塑料.PETG塑料制成的板材通常比通用壓克力堅韌15至20倍，比抗沖改性的壓克力堅韌5至10倍。PETG具有玻璃一樣的透明度和接近玻璃的密度，很好的光澤度，耐化學腐蝕，耐沖擊可制成復雜外形容器的包裝，具有高吸塑力，高光澤，低霧度，易于印刷，不易脫落

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