中文摘要：

以机械合金法合成PPP／ZnO（聚对苯撑／ZnO）纳米复合材料。PPP／ZnO经球磨后混合充分，聚对苯撑将ZnO块体完全分割。热电性能研究表明：添加聚对苯撑后，复合材料塞贝克系数大大降低，当聚对苯撑添加量的质量分数大于2％时，纳米复合材料的塞贝克系数均低于100μV．K-1，远低于传统合金类热电材料的相应值；而复合材料的电导率却随聚对苯撑添加量增加而增大，当聚对苯撑添加量的质量分数增加到4％时，750K下的电导率上升至2500S．m-1，较单一材料的电导率提高5倍以上。复合材料的热导率较纯ZnO（10W．m-1．K-1）大大降低，并随聚对苯撑添加量的增加而降低，当其添加量的质量分数为4％时，其复合材料在800K时的热导率可降至1．6W．m-1．K-1。

英文摘要：

Polyparaphenylene/ZnO （PPP/ZnO） nanocomposites were synthesized by mechanical alloying, and the powder of PPP and ZnO was mixed uniformly by ball-milling. The thermoelectric properties measurement showed that the Seebeck coefficient decreases significantly with the increase of PPP content, and the Seebeck coefficient of nanocomposites was lower than 100 V K-1 when the mass fraction of PPP was more than 2 %. This value is much lower than traditional thermoelectric materials. While the electrical conductivity increases with the increase of the PPP content, and the electrical conductivity up to 2 500 S - m-1 which was more than 5-fold than pure ZnO when the mass fraction of PPP was 4 %. The thermM conductivity of nanocomposite samples is smaller than those of pure ZnO （10 W .m-1 - K-1） and decreases drastically with increasing PPP content. The thermal conductivity can reduced to 1.6 W . m-1 - K-1 at 800 K when the mass fraction of PPP is 4 %.