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对于急冷晶态聚丙烯在热处理过程中的结构转变,Cailey和Zannetti等都曾作过研究,我们也曾报导过用电子计算机对X衍射曲线的计算分峰法研究这一结构转变的结果。由于对急冷聚丙烯的晶态结构的看法不一致,因此,对这种结构转变的解释也有较大分歧。Cailey等利用红外光谱、差热分析及X衍射等方法对聚丙烯的急冷晶态及退火过程进行研究,认为急冷晶态可能是晶粒很小的六方晶体,退火过程中,小六方晶体转变为单斜晶体。Zannetti等则认为,急冷晶态聚丙烯是一种准晶结构,热
For the structural transformation of the quenched crystalline polypropylene in the heat treatment process, Cailey and Zannetti et al. Have conducted studies. We have also reported on the calculation of the X-ray diffraction peak by computer to study the result of this structural shift. Due to the inconsistencies in the crystalline structure of the quenched polypropylene, there is considerable divergence in the interpretation of this structural shift. Cailey and other infrared spectroscopy, differential thermal analysis and X-ray diffraction and other methods of rapid cooling of polypropylene and annealing process, that the quenched crystalline grain may be very small hexagonal crystals, the annealing process, the small hexagonal crystals into Monoclinic. Zannetti so that the rapid cold crystalline polypropylene is a quasicrystalline structure, heat