纳米TiO_2添加饰面砂浆的性能  

Properties of decorative mortar modified with TiO_2 nano-powder

作　　者：张小婷[1,2] 刘燕丽[2] 程浩[1] 张学文[2] 

机构地区：[1]中国科学院可再生能源重点实验室,广东广州510640 [2]河南城建学院土木工程学院,河南平顶山467036

出　　处：《辽宁工程技术大学学报（自然科学版）》2015年第9期1042-1045,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：中国科学院可再生能源重点实验室开放基金项目(y207k51001)

摘　　要：为研究TiO2纳米微粉的掺加对新型饰面砂浆性能的影响,制备含不同质量分数(0,2%,4%,6%,8%)TiO2微粉的水泥砂浆试件,并利用可见、近红外分光光度计分析砂浆试样的反射性能.研究结果表明:当TiO2的质量分数为2%时,砂浆试件的太阳能积分球反射率为44.55%,相对基准试件增长了30.60%;同时抗压强度和抗折强度也比基准试件提高了11.00%和20.37%;毛细孔吸水率降低了45%左右.In order to study the properties of cement-based decorative mortars modified with TiO2 nano-powder, samples with different TiO2 nano-powder （0, 2%, 4%, 6%, t%） were prepared. Samples＇ reflectance, flexural strength, compression strength and alkali burnout resistance were detected. It was found that the reflectance of sample modified with 2% TiO2 nano-powder was 130.60% times of sample without TiO2 nano-powder; compressive strength and flexural strength were 111.00% and 120.37% times; the capillary water absorption of sample with 2wt% TiO2 were significantly reduced by 45%.

关 键 词：饰面砂浆 反射率 TiO2纳米微粉 性能 抗折强度 

分 类 号：TQ177[化学工程—硅酸盐工业]