本文提供了一种制备磷酸三钙/海藻酸钙(TCP/CA)复合平板膜的方法,以提高CA水凝胶的强度,并使其力学性能容易测试.在水溶液中将TCP与海藻酸钠复合,制备了TCP/CA复合平板膜,采用红外光谱和扫描电子显微镜对其进行表征,研究了不同TCP含量的TCP/CA复合平板膜的溶胀性能与复合平板膜在湿态和干态下的力学性能.结果表明:随着TCP含量的增加,TCP/CA复合平板膜在生理盐水中的溶胀率逐渐降低;TCP/CA复合平板膜在干态和湿态下的极限应力值均随着TCP含量的增加呈现先增加后减小的趋势;干态下的极限应力、模量和断裂能要明显大于湿态下的.该TCP/CA复合平板膜制备方法简单、厚度可控、易批量生产,在控制释放和组织工程领域有潜在的应用前景.
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