摘要
将厚度为1.1 mm的高铝硅酸盐玻璃(SiO2-Al2O3-Na2O系)置于KNO3/NaNO3混合熔盐中进行离子交换增强,再将强化后的玻璃置于不同质量比的AgNO3/KNO3混合熔盐中进行二次离子交换,制得高强载银抗菌玻璃。采用万能试验机测试玻璃样品的抗弯强度,利用EDS能谱分析测试离子交换深度及元素分布情况,用活菌计数法评测玻璃的抗菌性。实验结果表明:经过两步离子交换法可获得强度高、透明度好、抑菌效果优良的抗菌玻璃。第一步离子交换混盐质量比m(KNO3):m(NaNO3)=9:1,交换2 h;第二步离子交换混盐质量比m(AgNO3):m(KNO3)=1:9,交换10 min,在此工艺条件下制得的抗菌玻璃综合性能最优。
The Na2O-Al2O3-SiO2 system glass was ion exchange strengthened by KNO3/NaNO3 mixed molten salts,and then the tempered glasses were put into AgNO3/KNO3 mixed molten salt with different proportions to prepare high-strength Ag-carrying antibacterial glass.The bending strength of glass samples were measured by universal testing machine,the element distribution on the glass surface was measured by EDS and the antimicrobial activity of glass was determined by viable counting method.The results show that the glass with high strength,high transmittance and good antibacterial ability can be produced by two-step ion exchange process.Moreover,ion exchanging for2 h with mass ratio of mixed salt m(KNO3):m(NaNO3)=9:1 in the first step and 10 minutes with mass ratio of mixed salt m(AgNO3):m(KNO3)=1:9 in the second step making the antibacterial glass obtain optimized comprehensive properties.
作者
王海风
徐桂香
董芸谷
熊能
王若轩
WANG Haifeng;XU Guixiang;DONG Yungu;XIONG Neng;WANG Ruoxuan(School of Material Science and Engineering,Donghua University,Shanghai 201620,China;Advanced Glass Manufacturing Technology Engineering Research Center,Ministry of Education,Shanghai 201620,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2020年第12期12040-12044,共5页
Materials Reports
基金
东华大学材料科学与工程学院拔尖创新人才培养计划。
关键词
化学钢化
载银
抗菌玻璃
chemical tempering
Ag-carrying
antibacterial glass
