新型纳米防污剂对瓷质抛光砖的表面修复

论述了瓷质抛光砖表面被新型纳米防污剂处理前后的显微结构,新型纳米防污剂的表面修复作用和防污机理。纳米防污剂有效填充了抛光砖表面的开口气孔,显著提高了抛光砖的防污特性。经新型纳米防污剂处理的抛光砖具有优异、持久的防污性能。     

瓷质抛光砖耐污性检测和缺陷分析

本文概述瓷质抛光砖耐污性能的检测、表面吸污主要原因,如何提高瓷砖烧结强度、降低残留气孔含量、改善抛光效果、使用防污剂等提高抛光砖耐污性能的方法,对瓷质抛光砖的挑选等方面提出建议。     

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.     

瓷质抛光砖防污性能与表面孔洞关系的研究

瓷质抛光砖表面孔洞形貌、大小、数量对防污性能有明显的影响。这里采用扫描电子显微镜和图像处理软件相结合的方法,定量表征了瓷质抛光砖表面孔洞与防污性能的关系。结果表明:当表面孔洞面积百分比小于8%、孔洞平均面积在605μm2、孔洞内壁较光滑时,耐污染级别较高,可达到4级以上,防污性能较好。     

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.     

问:抛光砖表面吸污的原因及解决方法分别有哪些?

正答:瓷质抛光砖具有气孔率低、机械性能好、耐化学腐蚀、抗冻和耐磨等优点,被广泛地应用于家庭居室和公共场所的地面装饰。抛光砖在铺贴和使用过程中,水泥、填缝剂、油漆、墨水等污垢会粘附在砖面上,并且渗入砖体表面的缺陷中造成表面吸污,影响清洁和美感。要解决陶瓷抛光砖表面吸污的问题,就需要提高陶瓷抛光砖的耐污性能。可以从提高瓷质抛光砖烧结程     

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。     

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,     

抛光砖及其防污

瓷质抛光砖自诞生之日起,以其光彩夺目、高贵典雅的特殊勉力为人们所青睐。但抛光砖的弱点是表面易受污染,无论是在贮运过程,还是在装修过程,一旦接触到带有颜色的液体或粉末状固体,就会在其表面留下不可擦除的污渍,影响抛光砖的美观。目前,各厂家所采用的方法,主要是对抛光砖表面进行预处理,其中普遍采用的是：在经过抛光的砖表面擦一层固体石蜡,这种方法简单易行且经济,但存在的缺点是,使抛光砖失去原有的光泽,削弱了光亮如镜的优点,且防污效果差,作用时间短。较理想的方法是使用表面处理剂。其主要成份是几种有机化合物聚…     

抛光砖打蜡机抛磨运动分析

瓷质抛光砖打蜡后要获得非常光亮的表面以及优良的防污效果,就必须在打蜡过程中使抛光砖表面各点处的抛磨次数尽可能一致。但在实际的打蜡过程中,很容易产生抛磨不均匀现象。本文以一种新型抛光砖打蜡机的抛磨装置为研究对象,建立抛磨运动的数学模型,利用Matlab软件进行抛磨运动仿真．分析不同抛磨运动参数对抛磨均匀性特性的影响,对打蜡机运动参数的确定和打蜡质量的研究具有参考价值。     

大规格抛光砖主要缺陷分析

较为详细地阐述了大规格抛光陶瓷砖普遍存在的抗污性能差、抛光后变形、脆性大等缺陷产生的原因及其预防措施。该研究成果对大型抛光陶瓷砖的生产者、研究者与使用者具有重要参考价值。     

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.     

大规格抛光砖主要缺陷分析

较为详细地阐述了大规格抛光陶瓷砖普遍存在的抗污性能差、抛光后变形和脆性大等缺陷产生的原因及其预防措施。该研究成果对大型抛光陶瓷砖的生产者、研究者与使用者具有重要参考价值。     

Effect of the green porous texture on porcelain tile properties

Porcelain tile is a product characterised by low water absorption (usually less than 0.1%) and excellent mechanical properties. To enhance tile aesthetic qualities, much of the porcelain tile production is polished to provide a high-gloss surface finish, in which certain closed pores in the tile body become visible. This apparent porosity of the polished tile, which had been closed porosity before polishing, sometimes lowers the product's stain resistance.Test pieces were formed from a porcelain tile composition prepared under different milling conditions, pressing variables being kept constant, and the pore size distribution of these pieces was determined. The effect of the porous texture of the green pieces on the evolution of porosity during sintering and on the residual porosity of the densified body was analysed. It was verified that the porous texture of the fired piece was conditioned by the porosity and size of the largest pores in the green piece. The effect of residual porosity on stain resistance was determined by two cleaning methods. The presence of large pores in the green body, stemming from insufficient milling of the raw materials mixture, led to tiles with greater residual porosity and worse stain resistance.     

Effect of spray-dried powder granulometry on the porous microstructure of polished porcelain tile

The low porosity of porcelain tile is the result of strict control of the material's processing conditions (milling of raw materials, compaction and sintering) and the characteristics of the raw materials used in its formulation (formation of liquid phases). Sealed pores remaining after the manufacturing process are revealed at the surface after polishing and are the main factor responsible for staining the product. The porous microstructure of the sintered material depends on the characteristics of the porous microstructure of the green compact and on how the densification process evolves during sintering. The present work evaluated how the size distribution of spray-dried granules acts upon the porous microstructure of green compacts and of polished porcelain tile. The results revealed that minor adjustments in the granulometric distribution curve can reduce the visibility of stains on the polished surface, thus improving this property.     

抛光砖废渣制备轻质外墙砖工艺参数的研究

采用抛光砖废渣等工业废渣为主要原料,以高可塑性粘土、黑滑石、钾长石、石英和煅烧氧化铝为辅助原料制备陶瓷轻质外墙砖,研究了抛光砖废渣用量、成形压力以及烧成制度对轻质外墙砖性能和质量的影响。结果表明：随着抛光砖废渣用量增加或成形压力的降低,轻质外墙砖的导热系数提高而抗压强度与容重则降低。通过TG-DSC分析确定了在≤750...     

抛光砖废渣制备轻质外墙砖工艺参数的研究

采用抛光砖废渣等工业废渣为主要原料,以高可塑性粘土、黑滑石、钾长石、石英和煅烧氧化铝为辅助原料制备陶瓷轻质外墙砖,研究了抛光砖废渣用量、成型压力以及烧成制度对轻质外墙砖性能和质量的影响。结果表明：随着抛光砖废渣用量增加或成型压力的降低,轻质外墙砖的导热系数提高而抗压强度与容重则降低。通过TG-DSC分析确定了在小于等于...     

抛光砖表面防污技术研究

本文研制了室温固化的抛光砖表面防污剂。它具有固化后不收缩、透明度高、耐水擦拭和浸泡的特性,并具有很好的渗透性和附着力。文中还讨论了以石油醚为溶剂的钛酸四异丙酯对防污剂固化速度的影响以及甲基含氢硅油和钛酸四异丙酯的含量对防污性的影响。     

Preparation and characterization of modified ultrafiltration nylon 6 membrane modified by poly (acrylamide-co-maleic anhydride)

In attempt to prepare modified ultrafiltration (UF) Nylon 6 membrane and improve its hydrophilicity and anti-fouling performance, poly (acrylamide-co-maleic anhydride)(AM-MA) was utilized as hydrophilic copolymer additive in the dope solution. The UF Nylon 6/AM-MA membranes were synthesized through blending Nylon 6 with poly(AM-MA) using a phase inversion process. Characterization of the prepared membranes for morphological studies and thermal behavior was carried out by SEM and DSC instruments respectively. The SEM photos demonstrated that by increasing the copolymer density in the dope solution, the morphology was changed from spongy to bi-continuous, composed of small interlocked and stick-like crystallites. FTIR/ATR and water contact angle data also confirmed the existence of AM-MA copolymer on the blend membranes surface. Furthermore, the effect of different molecular weights and concentration of hydrophilic copolymer on filtration performance and antifouling properties were experimentally studied. The results exhibited that the blend UF membranes possessed better water flux permeability than pure Nylon 6 membrane due to the increased surface hydrophilicity and porosity. Fouling resistance experiments revealed that the surface anti-fouling ability of the blend membranes was improved via the addition of AM-MA copolymer with lower MW (co1) to the cast solution, while this parameter was weakened in higher MW of copolymer (co2).     

氟硅防污剂的合成、复配及其作用机理研究

以甲基丙烯酸十二氟庚酯(G-04)和γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)为主要原料,以过氧化苯甲酰(BPO)为引发剂,石油醚作溶剂,合成了一种反应性氟硅聚合物(FMS),并与甲基硅树脂(TM-10)、聚硅氧烷(DH-40)、γ-氨丙基三乙氧基硅烷(KH-550)复配制得抛光砖防污剂(FMS-SR)。用FTIR对FMS的结构进行了表征,研究了FMS防污作用机理。结果表明,当m(TM-10)/m(DH-40)=1.8时,FMS-SR石油醚溶液中FMS的最佳质量分数为3.4%,防污性能最佳;经FMS-SR处理后,抛光砖防污性能和耐磨性能分别达到5级和4级,水和液体石蜡在抛光砖表面的接触角分别达到109.5°和97°。