有机硅砖质文物保护剂的制备及性能研究  

The Preparation and Performance of Organosilicon Conservancy Agent for Historical Bricks

作　　者：詹予忠[1] 何嵘[1] 朱小丽[1] 沈国鹏[1] 韩丽[1] 陈宜俍[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2014年第3期6-9,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省人才培养联合基金资助项目(U1204215);郑州市科技公关计划项目(074SGYS30250)

摘　　要：以γ-氨丙基三乙氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅烷、水和盐酸为原料制备了砖质文物加固保护剂,考察了组分配比对成膜附着力和固化时间的影响,获得最优配方为:V(KH560)∶V(KH550)∶V(H2O)=10∶1∶2.4及体积分数为1%的HCl.然后采用出土画像砖残片为实验对象,对优化配方下的保护剂进行考察,对比保护前后砖样的吸水率、吸盐率、融冻循环、耐盐循环等指标可知,采取保护措施后砖仍保留了多孔性和亲水性,抗融冻能力和耐盐循环次数均提高约1倍,表明保护剂处理能大幅度增加砖的强度.The conservancy agent for historical bricks was prepared by using （3-glycidyloxypropyl） methyldiethoxysilane, （3-aminopropyl）triethoxysilane, water, and HC1 as reactants. The effect of reactive formula on cure time and membrane performance was investigated and the optimum formula V（KH560） ： V（KH550） ： V （H2O） = 10： 1：2.4,1% HCl） was obtained. The conservancy performance of the optimum formula was valued on unearthened fragments of brick reliefs. Through the comparision of some performance parameter such as water absorption, salt absorption, thaw-freeze cycle, and salt resistance before and after conservation, it was found that the porousness and hydrophilicity of the bricks were still maintained and the thaw-freeze cycle and salt resistance increased about 2 times, meanwhile the strength and weather resistance were enhanced significantly.

关 键 词：有机硅聚合物 砖质文物 保护剂 硅烷偶联剂 

分 类 号：O631.5[理学—高分子化学]