中文摘要：

对氧化锌晶须（ZnOw）进行正硅酸乙酯（TEOS）和γ-氨丙基三乙氧基硅烷（APTES）改性后得到共改性氧化锌晶须（TA-ZnOw），在其表面进行聚苯胺（PANi）接枝聚合，制备了TA-ZnOw／PANi复合物。将其与只经APTES改性的氧化锌晶须（A—ZnOw）和聚苯胺复合而成的A—ZnOw／PANi复合物，及未经任何改性的氧化锌晶须（N—ZnOw）和聚苯胺合成的N—ZnOw／pANi复合物进行形貌、结构及性能比较。结果表明，TA-ZnOw／PANi复合物中的聚苯胺接枝效果最好，而且接枝在TA-ZnOW表面的聚苯胺结构与纯聚苯胺结构相同。且TA-ZnOw／PANi核壳结构复合物表现出最好的介电性能和热稳定性能，介电常数虚部最大值为6．86，壳层聚苯胺热分解温度为350℃。TEOS作为保护层，APTES作为自组装层，在制备TA-ZnOw／PANi核壳结构复合物过程中起了重要作用。

英文摘要：

After ZnO whisker （ZnOw） was modified by TEOS and APTES （noted as TA-ZnOw）, polyaniline （PANi） was grafted on the surface of the TA-ZnOw. By the route, the ZnOw/PANi composite with core-shell structure was prepared. Then APTES modified ZnOw （noted as A-ZnOw） and ZnOw without any modified （noted N-ZnOw） was used to prepare A-ZnOw/PANi composite and N-ZnOw/PANi composite, respectively From the compared result, we can find that the TA-ZnOw/PANi core-shell composite had the best graftir morphology, and the structure of PANi on the surface of TA-ZnOw is the same to pure PANi. The TA-ZnO PANi core-shell composite had much better thermal stability and dielectric loss capability than both A-ZnOw/ PANi composite and N-ZnOw/PANi composite, whose temperature of loss of weight started at 350℃, and the strongest imaginary of permittivity was 6.86. The TEOS as the protecting layer and APTES as the self-assembled layer, both of them played important role on the preparation of TA-ZnOw/PANi composites.