【摘要】 本文借助热台偏光显微镜,扫描电子显微镜,红外光谱等技术研究了聚醚醚酮(PEEK)球晶结构的形态特征。发现PEEK的同-球晶可在不同条件下呈现放射状及带状的形态,而这两种形态可相互进行可逆的热转变。对这两种球晶的相互转变规律及球晶的微观结构作了分析,提出了PEEK球晶结构的模型。更多还原

【Abstract】 By using PLM (polarized light microscopy) with heating stage, SEM, IR, and DSC techniques, the spherulitic structure of polyetheretherketon (PEEK) has been studied. It has been found that the spherulite of PEEK shows radiated morphology or banded morphology in some case, and the two morphologies can interchange reversi’blely in thermal process. The interchanging characteristics and the microstructure of them have been investigated. Basing on the results a spherulitic model of PEEK has been given.更多还原