聚苯酯对聚醚醚酮结晶行为的影响

Effect of Polyphenylester on the Crystal Behavior of Poly(ether ether ketone)

用模压法制备了聚苯酯 (Ekonol) /聚醚醚酮 (PEEK)复合材料 ,通过X射线衍射 (XRD)、差示扫描量热分析(DSC)考察了PEEK的结晶行为 ,并测定了复合材料的熔点、结晶温度和玻璃化转变温度。结果表明 :Ekonol含量的大小对PEEK的结晶行为产生了直接影响 ,PEEK的相对结晶度随着Ekonol含量的增加而提高 ;Ekonol含量小于3 0 %时 ,对复合材料的熔点、结晶温度和玻璃化转变温度影响不大 ,但含量大于 3 0 %时 ,材料的结晶温度、熔融温度下降 ,玻璃化转变温度提高。

Blends of Polyphenylester(Ekonol)/poly(ether ether ketone)(PEEK) were investigated using XRD and DSC. The degree of crystallinity of PEEK increased with increasing content of Ekonol. When the content of Ekonol was less than 30 %, the melting point, crystallizing point and glass-transition temperature of the blend remained unaffected. However,when the content of Ekonol more than 30 %, the melting point and crystallization temperature became lower, while the glass-transition temperature was increased.