瓷质抛光砖纳米防污的显微结构研究

通过考察纳米防污剂涂覆过程中不同阶段抛光砖表面显微结构的特点.深入讨论了纳米防污剂的作用机制及影响防污效果的主要因素;确定只有经纳米防污剂A液、B液组合应用,且B液有效成分完全固化后,才能实现对抛光表面气孔和缺陷的完美、持久修复,达到有效提高瓷质抛光砖防污、抗污性能的目的.     

高性能纳米杂化抛光砖防护液的研究

本文分别利用溶胶-凝胶法和水性纳米粒子的表面改性技术配制了三种新型的纳米杂化防护液,研究了防护液干燥成膜的疏水性、铅笔硬度、透明性以及其对抛光砖的渗透粘接情况。经纳米杂化防护液处理后的瓷质抛光砖均具有良好的持久防污性和耐磨性能。     

含全氟烷基的有机硅防污剂的制备及性能研究

以全氟辛基磺酰氟和γ-氨丙基三乙氧基硅烷为原料,合成了全氟辛基磺酰氨丙基三乙氧基硅烷;然后加入羟基硅油、乙醇等,配成防污剂;并用于抛光砖的表面处理.用IR对全氟辛基磺酰氨丙基三乙氧基硅烷的结构进行了表征;考察了防污剂的n(R)/n(Si)值和处理液浓度对其成膜性、抛光砖的吸水率、接触角、耐碱性及耐污染性的影响,用SEM观察了抛光砖的表面形貌.结果表明,当n(R)/n(Si)＝1.4、防污剂乙醇溶液中全氟辛基磺酰氨丙基三乙氧基硅烷的质量分数为6%时,防污剂具有最佳的防水防污性能,经其处理的抛光砖的接触角达到114.7°、吸水率为0.041%、耐碘酒和铁红试验膏污染剂污染性都达到五级,抛光砖表面状态显著改善,缺陷减少,且防污剂膜具有良好的耐碱性和附着力.     

抛光砖表面防污剂的研制

研制了室温固化的抛光砖表面防污剂，对抛光砖的微孔和表面具有很好的渗透性和附着力，透明度高，耐水和耐有机溶剂擦拭，讨论了影响防污剂固化速度和防污性的诸种因素。     

新型抛光砖防污剂

实验研制的一种新型抛光砖防污剂,能防止一般生活污渍对抛光砖的污染。关具有较好的市场前景。     

氟烷基硅烷改性硅树脂陶瓷防污剂研制及应用

通过添加甲基三氟丙基二甲氧基硅烷来改性硅树脂陶瓷防污剂可明显地改善防污剂的耐油性污渍的性能,同时氟烷基硅烷改性硅树脂陶瓷防污剂保持了有机硅树脂防污剂的持久防污性能的优点。用金相显微镜、扫描电镜观察抛光砖表面孔隙的变化。     

抛光砖表面防护

研制了室温固化的抛光砖表面防污剂,对抛光砖的微孔及抛光过程所导致的微裂纹具有很好的渗透性和附着力,固化后不收缩,透明度高,耐水擦拭和浸泡。讨论了以石油醚为溶剂钛酸四异丙酯对防污剂固化速度的影响、甲基含氢硅油和钛酸四异丙酯的含量对防污性的影响。     

提高瓷质抛光砖表面防污性能的研究

从瓷质抛光砖的制备烧结过程和抛光过程阐述了瓷质抛光砖表面普遍存在的抗污染性能差、防污时效短等缺陷产生的原因,并根据瓷质抛光砖表面防污原理从生产工艺到外加剂两方面分析了提高瓷质抛光砖表面防污性能的可行方案和措施,着重讨论了使用自制外加剂来提高瓷质抛光砖表面防污性能的作用机理、防污效果及其发展应用的前景和意义,通过显微照片的对比分析也说明该自制外加剂的使用不仅能提高瓷砖表面的抗污染性能,同时也提高了砖表面的视觉效果.     

佛山抛光砖防污剂技术日趋完善

随着佛山建陶行业抛光砖生产工艺的成熟,抛光砖防污技术也日臻完善。最近,佛山某公司研制成功升级换代的防污剂产品,使抛光砖"护肤美容"后与国际防污质量标准接轨,远销国内外市场,备受青睐。抛光砖防污剂是针对瓷质砖经过抛光后砖面裸露气孔容易渗入污染物而研制的。主要解决用户在铺贴、使用抛光砖的过程中,带入水泥沙浆、油墨、茶水、橡胶等污染痕迹难以去除的问题。因此,国内外生产厂家都把涂防污剂作为抛光砖生产、石材加工的最后一道工序,     

关于抛光砖防污标准的答疑

问：我厂生产抛光砖，暖水率控制在0．1％以下，并在砖表面做了良好的防污处理，但偶然还是有客户对防污问题投诉。请问，国家标准对抛光砖的防污性能具体是怎样规定的？     

Preparation and characterization of a hyperbranched polyethoxysiloxane based anti‐fouling coating

A hyperbranched polyethoxysiloxane was synthesized via hydrolytic polycondensation between methyltriethoxysilane (MTES) and tetraethoxysilane (TEOS), with hydrochloride acid as catalyst. FTIR, ¹H NMR, ²⁹Si NMR, and GPC measurements confirmed that the polyethoxysiloxane synthesized was indeed a hyperbranched polymer with a degree of branching of 0.67. It was also found that there were no silanol groups in polymer matrix. This quality can effectively enhance its storage stability. Based on the hyperbranched polyethoxysiloxane, a novel antifouling coating with high curing speed at ambient temperature was developed. The recipe and other technique parameters of the coating were revealed and investigated. Experiments indicate that the coating performs well as an antifouling agent and can be applied to various ceramic products. By using scanning electron microscope (SEM) to inspect the surface of a polished tile applied with the coating, the antifouling mechanism was studied and the results were explained in accordance with the penetrating and crosslinking of the macromolecules of hyperbrached polyethoxysiloxane into the microdefects on the surface of tiles. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5818–5824, 2006     

陶瓷地砖静摩擦系数试验方法研究

静摩擦系数是评价陶瓷砖防滑性能的重要指标。本文分析了两种陶瓷砖摩擦系数试验方法(中国标准GB/T 4100-2006附录M以及美国标准ASTM C1028-07)的异同点,对8类的陶瓷地砖进行了静摩擦系数测试和防滑性能评价。测试结果显示,两种方法的测试值存在差异,滑块橡胶类型不同是产生差异的主要原因。对于抛光表面,用水平拖拉法测得的静摩擦系数可能不能反映其真实的防滑性能,应采用其他合适的方法测试和评价其防滑性能。     

石英对瓷质抛光砖防污性能的影响

实验研究了瓷质抛光砖坯体中石英晶相对防污性能的影响.采用XRD和SEM等方法分析了石英晶相的含量与防污性能的关系,并从显微结构出发讨论了影响瓷质抛光砖防污性能的根本原因.结果表明:减少原料中SiO2的引入量或其粒度均可降低烧结成瓷后坯体中SiO2晶相的残留量,从而有效改善瓷质抛光砖的防污性能.     

陶瓷抛光砖废料和磷石膏对硅酸盐水泥熟料煅烧及其岩相结构的影响

试验研究了陶瓷抛光砖废料和磷石膏配料对硅酸盐水泥熟料烧成的影响,并通过XRD、岩相分析和性能测试等手段探讨了其对熟料岩相结构与性能的影响及其机理.结果表明,通过优化配料方案和工艺条件,陶瓷抛光砖废料和磷石膏代替部分原料配料可烧制出合格的硅酸盐水泥熟料.     

Functionalization of ceramic tile surface by soluble salts addition: Part I

The aim of this investigation was the surface functionalization of industrial ceramic tiles by soluble salts addition to improve mechanical properties (resistance to scratch and wear) preserving the aesthetical aspect of the final product. This objective was pursued through the application of different solution of zirconium capable to be transformed in zirconia nanoparticles during the material sintering. The solutions, in different concentrations, were deposited (300 g/m²) on unglazed green tiles by air-brushing. The obtained products were polished and characterized in terms of microstructure, surface micromechanical and technological properties based on the UNI EN ISO reference rules. The final aesthetical aspect of the products and the obtained hue variation were evaluated by means of UV–vis spectroscopy and colorimetric analysis.     

Enhancement of hybrid sol–gel coating and industrial application on polished porcelain stoneware tiles and investigation of the performance

The aim of this study was to improve stain resistance and cleanability of polished porcelain tiles by sealing the micro-pores on the tile surface with hybrid sol–gel solution. For this purpose, solutions of a hybrid system based on sol–gel technology were prepared. The obtained solution were applied to polished unglazed tiles and subsequently spread with soft tissue thereon. To achieve complete sealing, both organic and inorganic particles of different sizes were mixed with obtained sol–gel hybrid systems. Coated surfaces were investigated by means of a scanning electron microscope. The stain resistance and the cleanability of the tile surface were tested according to ISO-10545-2014 standard. It has been shown that prepared sealing material permanently prevents formation of stains such as olive oil, green staining paste, iodine solution on the surface of polished porcelain tiles. The remains of stains on the surface can easily be removed from it with a cleaning agent.     

Utilization of granodiorite in the production of porcelain stoneware tiles

In the present study, the use of granodiorite, as fluxing agent in a body mix for stoneware ceramic tiles production, was assessed. Four batches were formulated using clay from Khaboba, and natural granodiorite from Saint Katherine, Sinai, Egypt. The batches were tailored to completely replace both feldspatic and inert components of stoneware ceramic tiles. Densification was studied according to ISO rules, while sinterability was estimated by optical dilatometry. The dependence of microstructure and mechanical properties of stoneware ceramic tiles on granodiorite content was discussed. Strength measurements showed that increasing granodiorite content the bending strength of the bodies increased. In particular the studied batches can be used for the production of industrial fast firing tiles. The obtained ceramic tiles possess properties similar to commercial ceramic floor and/or wall tiles.     

陶瓷废料的组成与火山灰活性研究

摘要：通过X射线衍射分析、玻璃相含量测定、28d抗压强度比及火山灰活性等试验,研究了陶瓷玻化砖废料、瓷质废料、炻质废料和陶质花盆四种类型陶瓷废料的组成与火山灰活性,为开拓陶瓷废料的应用提供依据。研究结果表明：陶瓷抛光砖粉与废陶瓷玻化砖尽管主要成分相近,但前者氯含量较高,用于水泥混合材受到限制;几种类型的陶瓷废料均具有火山灰活性,其水泥胶砂28d抗压强度比均高于62％,废陶瓷玻化砖为82．1％,瓷质废料为80．8％,炻质废料为78．3％,陶质废料为77．3％。陶瓷玻化砖废料的玻璃相含量较高,瓷质废料其次,炻质和陶质废料的玻璃相含量较低。玻璃相含量较高的陶瓷废料其水泥胶砂28d抗压强度比．较高。     

瓷质抛光砖表面显微结构与防污性能的关系探讨

采用光学显微镜、扫描电镜等对抛光砖的表面显微结构进行了研究。结果表明：气孔率对抛光砖的防污性能有明显影响，但抛光砖中石英晶体在冷却过程中与玻璃体膨胀系数的差异产生的热应力，促使玻璃体沿石英周边形成了微裂纹，抛光时机械力的作用使晶粒剥落造成表面孔洞，是造成瓷质抛光砖容易吸污的主要原因之一。     

Laser-assisted glass-based sealing of polished porcelain stoneware tile surface to increase stain resistance

This study aims to develop a new approach for the permanent sealing of surface pores on polished porcelain stoneware tiles, using ceramic frits for the filling pores, followed by laser-sealing to ensure the fixation of the applied material. The laser-sealing parameters compatible with the ceramic substrate were focus height (z) of 105 mm, scan speed (v) of 2640 mm.min⁻¹, and power values of 750, 800, and 850 W. In order to define the working parameters, three ceramic frits with 30, 50, and 70 wt.% solid contents were tested by sealing at the mentioned powers. High stain resistant polished stoneware tiles were obtained using frit 1 and frit 3 with 50 and 70 wt.% solid contents, respectively, and the proposed procedure. High ease of cleaning is obtained related to the current treatment, demonstrating its suitability for improving the stain resistance for meeting the ISO 13006:2012 requirements.