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将聚对苯二甲酸乙二酯(PET)和聚丙烯(PP)共混,可改善聚丙烯的染色性能。在此体系中,两组份为不相混溶的结晶性高聚物,这类体系的结构形态,Stein等曾提出四类可能遇到的基本模式,但是有关这些形态的扫描电镜的观察尚少报导。本工作采用化学蚀刻的方法,通过扫描电镜,观察了PET的不同含量对共混物结构形态的影响,其结果有助于理解可染丙涤纤维的染色机理。
Blending polyethylene terephthalate (PET) with polypropylene (PP) improves the dyeing properties of polypropylene. In this system, the two components are immiscible crystalline polymers. The structural morphology of such systems, Stein et al. Proposed four basic types of modes that may be encountered, but the observation of these forms of SEM Less reported. In this work, the chemical etching method was used to observe the influence of different contents of PET on the morphology of blends by scanning electron microscopy. The results can help to understand the dyeing mechanism of dyed polyester fibers.