露天石质文物表面SiO_2仿生膜的制备  

Preparation of bioinspired SiO_2 films on the surfaces of field historic stones

作　　者：洪坤[1] 詹予忠[2] 

机构地区：[1]江苏食品职业技术学院生物工程系,淮安223003 [2]郑州大学化学工程学院,郑州450001

出　　处：《化工新型材料》2007年第12期16-17,31,共3页New Chemical Materials

摘　　要：受天然草酸钙防护膜的启发,通过仿生技术,以十六烷基三甲基溴化铵为有机模板调控氟硅酸钠的水解沉积,在青石表面制备出SiO2防护膜。制备出的仿生膜具有优良的耐酸、耐污性能,憎水性有所增加,但仍保持青石亲水的性能。仿生膜的结构和形貌用红外光谱仪和扫描电子显微镜进行了表征。Enlightened by the natural oxalate calcium protective films, the CTAB templated silica films were prepared by hyfrolysis of Sodium fluosilicate under the condition of adding boric acid on the .surfaces of stone in the way of biomimetic synthesis. The prepared bioinspired films had an excellent performance of resisting acid and soil, the improved contact angle, but still maintained the good hydrophilicity. The structure and rnicrotopography of bioinspired films have been analyzed by FTIR and SEM.

关 键 词：仿生合成 二氧化硅膜 石质文物保护 

分 类 号：TB383.2[一般工业技术—材料科学与工程]