Graphic-analytical model for predicting the uniformity of glass enamel coatings

A graphic-analytical model that makes it possible to estimate the capacity of a metal-melt system of a formed coating for producing inhomogeneities in the form of nonsealed shrinkage cracks and to calculate the numerical values of the characteristics of the system for which the coating will have no defects is presented.Translated from Steklo i Keramika, No. 12, pp. 23–25, December, 1995.     

Recording penetrative defects in glass enamel coatings

Translated from Steklo i Keramika, No. 1, pp. 27–28, January, 1991.     

Use of natural raw materials for synthesizing enamel coatings

The possibility of using granite screenings from the Mikashevichskoe Deposit for synthesizing one-coat enamels for protecting the internal surfaces of hot water pipelines is established. The regular features of variation of the important technological properties of enamels with their composition are investigated. The prepared water-resistant enamels are characterized by a lower firing temperature (840°C) and good adaptability to manufacture. Standard documentation for industrial use of the enamel was developed and approved.     

Increasing corrosion resistance of titanium enamel coatings by modifying the slip

Translated from Steklo i Keramika, No. 7, pp. 11–12, July, 1989.     

Biocompatible glass ceramic coatings for titanium alloys (Review)

Coatings from hydroxylapatite and bioglass for titanium are considered. A review of patents and scientific publications shows that there are prerequisites for creating coatings on titanium alloys that would ensure the biological compatibility of titanium on the basis of known technologies.Translated from Steklo i Keramika, No. 4, pp. 22–24, April, 1995.     

The application of titanium dioxide coatings by the extraction-pyrolysis method

The extraction-pyrolytic method of applying a TiO₂ film coating has been considered. The coating is suitable for various applications, in particular as a coating for self-cleaning glass, photocatalytic sterilization for medical and microbiological purposes, solar energy, and automotive and construction industries. Advantages of this method are its low cost and the possibility of coating large surfaces. The processes of extraction of titanium(IV), application of films of organic extracts to substrates, and pyrolytic treatment of precursors have been described. The phase composition and microstructure of the coatings obtained have been studied. It has been shown that the application of solutions of organic extracts to glass and metal substrates contributes to the formation of nanostructured continuous films, which possess photocatalytic activity.     

抗菌玻璃材料的研究与发展

介绍了几种抗菌玻璃,并对其制备方法、安全性测试、耐久性测试、抗菌性能测试方法和应用前景等进行了综述。     

水性涂料中二氧化钛颜料颜色的测定

利用二氧化钛颜料在水中的高分散性,借鉴色度法的测试原理,设计了二氧化钛颜料在水性分散体系中干膜颜色的测定方法.研究了基料色度、漆料细度对二氧化钛水性色浆颜色测试的影响,确定了试验漆料的组成.试验结果表明,该方法操作简便,数据重现性好,最小标准偏差为0.0096,最大标准偏差为0.05.以试剂级二氧化钛颜料为标样,各水性...     

二氧化钛高效包覆空心玻璃微珠的研究

采用水解沉淀法在空心玻璃微珠表面包覆一层二氧化钛,研究了微珠的表面活化处理和制备条件对表面包覆的二氧化钛形貌和硫酸钛利用率的影响。扫描电子显微镜(SEM)分析表明,氢氧化钠和硅烷偶联剂γ-氨基丙基三乙氧基硅烷(KH550)对微珠的表面活化处理能明显改善包覆效果,同未经活化处理的微珠相比,表面的二氧化钛包覆紧实、颗粒均匀。化学分析表明,微珠活化处理后,最佳的包覆条件为:pH为6、m(Ti(SO4)2)∶m(微珠)=1.2∶1.0、包覆时间为4h、包覆温度为70℃,此时硫酸钛利用率可高达84.3%。     

金红石型钛白粉在醇酸调和漆中的应用

醇酸调和白漆常使用锐钛型钛白粉作为颜料,但涂膜的耐候性和使用寿命不尽如人意,改用耐候性更好的金红石型钛白粉作为着色颜料,在保光性、保色性、耐久性等方面都有大幅提高,是值得大力推广的第二代醇酸调和漆。     

二氧化钛光催化分解水制氢技术进展

简单介绍了二氧化钛光催化分解水制氢的基本原理。综述了加入牺牲剂、碳酸钠、贵金属负载化、金属离子掺杂、阴离子掺杂、染料光敏化、半导体复合以及离子注入等提高二氧化钛光催化制氢的方法,讨论了这几种改性技术的机理以及对提高二氧化钛在可见光下的制氢效率的作用。重点讨论了阴离子掺杂和离子注入技术的机理和研究进展,指出离子注入是目前扩展二氧化钛光响应的最为有效的技术。最后讨论了光催化分解水制氢的氢氧分离问题,并通过与其他制氢技术的对比分析,指出光催化制氢将是通往氢经济的非常有潜力的制氢技术。     

纳米二氧化钛的现状与发展

介绍了目前纳米（超细）二氧化钛的几种基本制造方法，指出了二氧化钛的光催化性质、条件及原理，并且介绍了纳米二氧化钛的应用途径，主要是作为紫外光吸收剂、特殊颜料和化学催化剂使用。预测了未来10a纳米二氧化钛的生产消费情况。指出，到目前为止所有纳米（超细）粉体材料中，二氧化钛具有较好的光催化性质。     

我国钛白粉工业的回顾与现状

对我国钛白粉工业的发展进程作了简要回顾 ,对近十年来国内钛白粉生产和进出口情况以及产能、技术、品种、质量等方面作了介绍。指出目前存在的制约我国钛白粉工业发展的一些问题     

An antibacterial porous calcium phosphate bilayer functional coatings on titanium dental implants

BackgroundThe design of biological active and antibacterial implant coating remains a challenging topic to ensure early implant fixation and to prevent peri-implantitis. In this laboratory work, we reported a newly designed antibacterial porous calcium phosphate (CP) bilayer functional coating on titanium implant incorporated with molybdenum trioxide.MethodsThe coating was prepared by using a sol-gel template process. The physicochemical and biological properties of the coatings were investigated by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), in vitro coating degradation, in vitro mineral calcium phosphate formation, cell proliferation and antibacterial tests.Resultsthe porous calcium phosphate bilayer coating enhanced the mineral calcium phosphate formation compared with calcium phosphate coating. Cell proliferation test using MC3T3-E1 osteoblasts showed that the porous calcium phosphate bilayer coating promoted cell growth. Antibacterial test against S. aureus showed that the porous calcium phosphate bilayer coating incorporated with molybdenum oxide exhibited a better antibacterial activity than calcium phosphate coatingConclusionsa combination of porous structure, bilayer coating and doped molybdenum oxide is crucial to improve the performance of calcium phosphate coating.