中文摘要：

以水为增塑剂,利用分子复合和增塑的方法,制备了聚乙烯醇（ PVA）/β-磷酸三钙（β-TCP）复合材料,通过傅里叶变换红外光谱（ FTIR）、 X射线光电子能谱（ XPS）、扫描电子显微镜（ SEM）、差示扫描热分析（ DSC）及热重分析（ TGA）等手段研究了PVA与β-TCP间的相互作用及其对复合材料热性能和力学性能的影响.结果表明,β-TCP中的Ca2＋与PVA中的OH形成配位键,破坏了PVA自身氢键的缔合状态,使PVA中的小分子脱除反应在更高的温度下进行,提高了PVA的热稳定性,当β-TCP质量分数为30%时,复合材料的初始分解温度由PVA的235.4℃提高到268.6℃,增塑剂水可显著降低PVA的熔点,从而获得约138℃的热塑加工窗口.β-TCP在PVA基体中的良好分散及其与PVA基体间的良好界面相互作用使复合材料具有优良的力学性能.

英文摘要：

Poly（vinyl alcohol）/β-tricalcium phosphate（PVA/β-TCP） composites were prepared using water as plasticizer, and the structure and properties of the composites were studied by Fourier transform infrared spectrometer （ FTIR ） , X-ray photoelectron spectroscopy （ XPS ） , scanning electron microscopy （ SEM ） , differential scanning calorimetry（ DSC） , thermogravimetric analysis（ TGA） and so on. The results showed that the coordination bond betweenβ-TCP and PVA was formed, and it could increase the initial thermal decompo-sition temperature of PVA, while the melting temperature of composites decreased greatly with the addition of plasticizer, thus about 138 ℃ thermal processing window was obtained. Also, the composites had excellent mechanical properties with the well dispersion of β-TCP particles in PVA matrix and good phase interface between β-TCP and PVA.