纯银饰品抗变色的研究  

Study on Anti-discoloration of Fine Silverware

作　　者：许良洁 胡海涛 张维斯 姚天天 李家元 Xu Liangjie;Hai Haitao;Zhang Weishi;Yao Tianyian;Li Jiayuan(School of Chemistry and Environmental Science,XiangnanUniversity,Chenzhou 423000,China;Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds and Applications,Chenzhou 423000,)

机构地区：[1]湘南学院化学与环境科学学院,湖南郴州423000 [2]湘南稀贵金属化合物及其应用湖南省重点实验室,湖南郴州423000

出　　处：《广东化工》2024年第4期37-39,共3页Guangdong Chemical Industry

基　　金：2021年度校级大学生创新创业训练计划项目(校发[2021]40-64);湘南学院一流专业,一流课程,专业综合改革资助教改项目(校发[2020]78-15)。

摘　　要：银具有光亮的外表,但是它长期暴露在空气中易氧化硫化变色,影响美感。为了提高银的抗氧化能力,本文介绍了一种抗变色银材料的制备方法。该方法是通过在银表面覆盖一层透明无机陶瓷膜,避免银与外界物质接触,来达到抗变色的目的。该无机陶瓷膜的原料是正硅酸四乙酯、水、聚乙二醇、硼酸、偏铝酸钠,其最佳配比是92∶1000∶160∶3∶4,最佳搅拌时间是60分钟。该方法制备的抗氧化银材料比纯银抗变色能力强近500倍。Silver has a bright appearance,but it is easy to be oxidized and colored in the air for a long time,which affects the beauty.In order to improve the oxidation resistance of silver,this paper introduces a preparation method of antioxidant silver materials.The method is to achieve the purpose of anti-oxidation by covering an inorganic ceramic membrane on the surface of silver to avoid contact with external substances.The raw material of the membrane is tetraethyl orthosilicate,water,polyethylene glycol,boric acid,sodium metaaluminate,the best ratio is 92∶1000∶160∶3∶4,the best stirring time is 60 minutes.The antioxidant silver material prepared by this method is nearly 500 times stronger than that of pure silver.

关 键 词：抗变色 纯银饰品 无机陶瓷膜 

分 类 号：TQ[化学工程]