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聚对苯二甲酸乙二醇酯(PET)和聚对苯二甲酸丁二醇酯(PBT)都是重要的工程塑料,有关PET和PBT的形态结构已研究了很多。一般认为,PET和PBT在玻璃化温度以上,熔点以下的温度范围内都可以结晶,且大部分都形成球晶结构。然而,PET和PBT
Polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) are important engineering plastics, and the morphological structure of PET and PBT has been studied a lot. It is generally believed that both PET and PBT crystallize in the temperature range above the glass transition point and below the melting point, and most of them form spherulitic structures. However, PET and PBT