纳米羟基磷灰石对光催化棉织物的保护性能

 为提高棉纤维的光学稳定性,利用纳米羟基磷灰石(HAP)作为棉纤维的保护剂,对棉针织物进行功能性后整理。根据扫描电镜对比实验和红外光谱的测试结果,研究纳米HAP与棉纤维的结合机制,优选HAP分散体系与棉纤维结合的最佳工艺条件:纳米HAP在水中形成分散体系,pH值为12.30时,可使纳米HAP致密、均匀地分布于棉纤维上;实验证明,在紫外线照射时纳米HAP对棉织物具有良好的保护作用,吸附有纳米HAP的棉织物,在TiO2光催化作用中,顶破强力平均可提高约24.51%。

Protection study of cotton fabrics with nano-hydroxyapatite in photocatalysis

To promote photo-stability of cotton fiber and protect it,nano-hydroxyapatite(HAP) was used to finish the cotton fabrics functionally.According to the results of contract SEM and IR experiments,the article analyzed the process of combining cotton fiber with nano-hydroxyapatite,selected the optimum conditions: nano-hydroxyapatite was dispersed in water and adjusted pH to 12.30 with ammonia,it could be distributed on cotton fiber evenly and compactly.The experiments turned out that the finished cotton fabrics with HAP had good protection effect in TiO2photocatalysis,and its bursting strength was 24.51% higher than that without nano-hydroxyapatite at the same condition of UV damage.