{"title":"玻璃基板上分散二氧化钛透明无机聚硅氧烷涂层的制备及其红外、紫外性能","authors":"S. Saudi, A. F. Mohd","doi":"10.5604/01.3001.0016.2155","DOIUrl":null,"url":null,"abstract":"The aim of the presented work was to develop an economical, transparent coating with dispersed TiO2 dispersion and inorganic polysiloxane resin for glass windows application and to study its effectiveness in filtering IR and UV radiations.\n\nTwo oligomeric silanes were prepared in different molar ratios to produce inorganic polysiloxane resin. They were tested for their viscosity to reflect the completion of the reaction and form an amide linkage. FTIR was done to support the viscosity result by proving the presence of amide linkages. 10%, 20%, and 30% of compounded TiO2 were successfully dispersed in 0.3% sodium sulfosalicylate (dehydrated ethanol). Each TiO2 concentration was characterized for size distribution and polydispersity index (PDI). Additives solutions of 2-hydroxybenzophenone (HBP) and boron trifluoride (BF3) were also soluted in the same solvent. Glass substrates were coated with the formulations and tested for curing and hardness properties. Windows Energy Profiler (WEP) was used to study the UV, IR, and daylight transmission of the coated glasses.\n\nEach inorganic polysiloxane resin showed various viscosity values before reaching a constant state which designates complete formations of amide linkages. Polysiloxane resin with a viscosity value of 30.5 mPa/s was the most ideal to act as a binder. FTIR characterization proved the formation of amide linkages. The particle size distribution of TiO2 recorded the size of 87 nm after dispersion with correlating value of 1 PDI. The fastest drying time of 3 hours was recorded. The pencil hardness test quoted 6H pencil as the hardest pencil grade. WEP analysis of UV, IR, and daylight transmission gives satisfactory results of 0%, 7%, and 61%, respectively.\n\nLaboratory analysis for viscosity tests often being held off. The test requires the samples to be transferred in a cylinder with an open-air spindle rotation. Samples react with the surrounding environment. Thus, polymerization takes place rapidly, resulting in hardened samples inside the cylinder. The different measure was taken by wrapping the testing area with aluminium foil. This research was conducted under equatorial climate.\n\nThe obtained test results may contribute to the conclusion of transparent TiO2 nano-particles coating on glass substrates for windows application. This can reduce the electricity usage in buildings for artificial cooling to provide indoor thermal comfort. Smart coating formulations have a noticeable effect on filtering harmful solar radiation.\n\nThis study presents the economical and undemanding ways to develop transparent smart coating formulation with superior performance against solar radiation. It is expected to have a bright potential in the architectural industry.\n\n","PeriodicalId":14825,"journal":{"name":"Journal of Achievements in Materials and Manufacturing Engineering","volume":"76 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and performance in IR and UV of transparent inorganic polysiloxane coating with dispersed TiO2 on glass substrates\",\"authors\":\"S. Saudi, A. F. 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引用次数: 0
摘要
本研究的目的是开发一种经济、透明的分散二氧化钛分散体和无机聚硅氧烷树脂涂层,用于玻璃窗应用,并研究其过滤红外和紫外线辐射的有效性。以不同的摩尔比制备两种低聚硅烷,制备无机聚硅氧烷树脂。测试了它们的粘度,以反映反应的完成程度并形成酰胺键。FTIR通过证明酰胺键的存在来支持粘度结果。10%、20%和30%的复合TiO2成功分散在0.3%的磺基水杨酸钠(脱水乙醇)中。对各TiO2浓度进行了粒径分布和多分散性指数(PDI)表征。2-羟基二苯甲酮(HBP)和三氟化硼(BF3)的添加剂溶液也在同一溶剂中溶解。在玻璃基板上涂上配方,并测试了固化和硬度性能。采用window Energy Profiler (WEP)对镀膜玻璃的紫外、红外和日光透射进行了研究。每种无机聚硅氧烷树脂在达到酰胺键完整形成的恒定状态之前表现出不同的粘度值。黏度为30.5 mPa/s的聚硅氧烷树脂是最理想的粘结剂。FTIR表征证实了酰胺键的形成。分散后TiO2的粒径分布为87 nm,相关值为1 PDI。最快干燥时间为3小时。铅笔硬度测试引用6H铅笔作为最硬的铅笔等级。紫外,红外和日光透射的WEP分析分别给出了0%,7%和61%的满意结果。粘度测试的实验室分析经常被推迟。该测试要求将样品转移到带有露天主轴旋转的圆柱体中。样品与周围环境发生反应。因此,聚合发生得很快,导致钢瓶内的样品硬化。另一种方法是用铝箔包裹测试区域。这项研究是在赤道气候下进行的。所得的测试结果有助于得出透明TiO2纳米颗粒涂层在玻璃基板上用于窗户应用的结论。这可以减少建筑物人工冷却的用电量,以提供室内热舒适。智能涂层配方对过滤有害的太阳辐射有显著的效果。本研究提出了一种经济、低要求、具有优异抗太阳辐射性能的透明智能涂层配方。它有望在建筑行业中具有光明的潜力。
Preparation and performance in IR and UV of transparent inorganic polysiloxane coating with dispersed TiO2 on glass substrates
The aim of the presented work was to develop an economical, transparent coating with dispersed TiO2 dispersion and inorganic polysiloxane resin for glass windows application and to study its effectiveness in filtering IR and UV radiations.
Two oligomeric silanes were prepared in different molar ratios to produce inorganic polysiloxane resin. They were tested for their viscosity to reflect the completion of the reaction and form an amide linkage. FTIR was done to support the viscosity result by proving the presence of amide linkages. 10%, 20%, and 30% of compounded TiO2 were successfully dispersed in 0.3% sodium sulfosalicylate (dehydrated ethanol). Each TiO2 concentration was characterized for size distribution and polydispersity index (PDI). Additives solutions of 2-hydroxybenzophenone (HBP) and boron trifluoride (BF3) were also soluted in the same solvent. Glass substrates were coated with the formulations and tested for curing and hardness properties. Windows Energy Profiler (WEP) was used to study the UV, IR, and daylight transmission of the coated glasses.
Each inorganic polysiloxane resin showed various viscosity values before reaching a constant state which designates complete formations of amide linkages. Polysiloxane resin with a viscosity value of 30.5 mPa/s was the most ideal to act as a binder. FTIR characterization proved the formation of amide linkages. The particle size distribution of TiO2 recorded the size of 87 nm after dispersion with correlating value of 1 PDI. The fastest drying time of 3 hours was recorded. The pencil hardness test quoted 6H pencil as the hardest pencil grade. WEP analysis of UV, IR, and daylight transmission gives satisfactory results of 0%, 7%, and 61%, respectively.
Laboratory analysis for viscosity tests often being held off. The test requires the samples to be transferred in a cylinder with an open-air spindle rotation. Samples react with the surrounding environment. Thus, polymerization takes place rapidly, resulting in hardened samples inside the cylinder. The different measure was taken by wrapping the testing area with aluminium foil. This research was conducted under equatorial climate.
The obtained test results may contribute to the conclusion of transparent TiO2 nano-particles coating on glass substrates for windows application. This can reduce the electricity usage in buildings for artificial cooling to provide indoor thermal comfort. Smart coating formulations have a noticeable effect on filtering harmful solar radiation.
This study presents the economical and undemanding ways to develop transparent smart coating formulation with superior performance against solar radiation. It is expected to have a bright potential in the architectural industry.
期刊介绍:
The Journal of Achievements in Materials and Manufacturing Engineering has been published by the Association for Computational Materials Science and Surface Engineering in collaboration with the World Academy of Materials and Manufacturing Engineering WAMME and the Section Metallic Materials of the Committee of Materials Science of the Polish Academy of Sciences as a monthly. It has 12 points which was received during the evaluation by the Ministry of Science and Higher Education journals and ICV 2017:100 on the ICI Journals Master list announced by the Index Copernicus. It is a continuation of "Proceedings on Achievements in Mechanical and Materials Engineering" published in 1992-2005. Scope: Materials[...] Properties[...] Methodology of Research[...] Analysis and Modelling[...] Manufacturing and Processingv Biomedical and Dental Engineering and Materials[...] Cleaner Production[...] Industrial Mangement and Organisation [...] Education and Research Trends[...]