论文部分内容阅读
借助差示扫描量热仪(DSC)研究纳米SiO2/MC尼龙6原位复合材料等温结晶后的多重熔融行为。结果表明:复合材料的熔融行为呈现三重熔融峰,分别对应于等温结晶过程形成的小晶片、主要结晶组分及完善性较差的组分再结晶和再组合形成较为完善结晶组分的熔融。在高温下结晶,纳米粒子含量的增加提高了体系再结晶、再组合程度;在低温下结晶,当纳米粒子含量较低时,再结晶、再组合程度相对于纯MC尼龙6有所降低,进一步增加纳米粒子的含量,再结晶、再组合的程度又逐步提高。
The multi-melting behavior of nano-SiO2 / MC nylon 6 in-situ composites after isothermal crystallization was studied by differential scanning calorimetry (DSC). The results show that the melting behavior of the composites shows a triple melting peak corresponding to the small wafers formed by isothermal crystallization. The main crystalline components and less perfect components are recrystallized and recombined to form the more perfect melting of the crystalline components. Crystallization at high temperature, the increase in the content of nanoparticles increases the degree of recrystallization and recombination of the system; at low temperature crystallization, when the content of nanoparticles is low, recrystallization and recombination degree is decreased relative to pure MC nylon 6, further Increase the content of nanoparticles, recrystallization, and then gradually increase the degree of combination.