通过将低分子量无规聚丙烯(LMWAPP)与商用 等规聚丙烯(IPP)共混,研究其发光性能,结果表明,低分子量无规聚丙烯对聚丙烯的发光起着 重要作用,随着聚丙烯中LMWAPP含量的增加,聚丙烯发光强度增加,当LMWAPP含量超过30%时, 发光强度达到饱和。
Study on the luminescent emission of comme rcial polypropylene may provide scientific basis and technical routes for utilizing or restraining the luminescence of PP. In this paper, the result photolumine scent property and morphological structure of low molecular weight atactic polyp ropylene (LMWAPP)／isotactic polypropylene (IPP) blends was investigated by fluo rescence spectra and wide angle X-ray diffraction. Firstly, the luminescent int ensity of the composites increase with increasing LMWAPP contents(30%), then, an d reach at a maximum value. LMWAPP brought about the change in condensed state s tructure of IPP. The change of the structure caused the photoluminescence intens ities' change. The results indicate that LMWAPP plays an important part in the luminescence emission of polypropylene.
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