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本文利用差示扫描量热仪(DSC)对含有羟基磷灰石(HA)纳米颗粒的丙三醇溶液玻璃化过程中的主要热学性质进行了测定。其中包括玻璃化与反玻璃化温度的测定,玻璃化过程中比热的测定。结果表明加入HA纳米颗粒后的丙三醇溶液的反玻璃化温度(Td)表现出明显的上升趋势,当溶液浓度高于50%时玻璃化温度(Tg)也稍有升高;加入纳米颗粒后溶液在整个玻璃化过程中比热明显减小,并且减小程度与HA颗粒浓度及粒径大小均表现出一定的非线性关系。
In this paper, the main thermal properties of the glycerol solution containing hydroxyapatite (HA) nanoparticles in vitrification were determined by differential scanning calorimetry (DSC). Including the determination of vitrification and de-vitrification, the determination of specific heat in vitrification. The results showed that the trans-vitrification temperature (Td) of glycerol solution with HA nanoparticles showed a clear upward trend, and the glass transition temperature (Tg) increased slightly when the concentration of the solution was higher than 50%. Adding nano-particles After the solution during the entire vitrification process heat was significantly reduced, and the degree of reduction and HA particle concentration and particle size showed a certain nonlinear relationship.