采用熔融共混法制备可反应性纳米SiO2(RNS)/尼龙1010复合材料。通过X射线衍射(XRD)、热重分析(TGA)和差示扫描量热法(DSC)研究RNS对尼龙1010的热力学性能和结晶行为的影响。结果表明:RNS的加入没有改变复合材料的结晶形态,但其晶格尺寸发生了一定程度的改变;同时提高了复合材料的热稳定性,使其熔融温度升高,结晶温度降低,结晶程度更加完善。 Reactive nano-SiO2 (RNS) / nylon 1010 composites were prepared by melt blending method. The effects of RNS on the thermodynamic properties and crystallization behavior of nylon 1010 were investigated by XRD, TGA and DSC. The results showed that the addition of RNS did not change the crystalline morphology of the composites, but the lattice size changed to a certain extent. Meanwhile, the thermal stability of the composites was improved, the melting temperature was increased, the crystallization temperature was decreased and the crystallization degree was more perfect.