共查询到18条相似文献,搜索用时 78 毫秒
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油罐用太阳热反射涂料研究进展 总被引:1,自引:0,他引:1
现有油罐用太阳热反射涂料颜色单调,作用机理单一。针对太阳光照下,油罐表面受热特点,围绕油罐降温,减少油品损耗这一目的,对相关新型材料如导电聚合物、高反射颜料、复合功能填料以及相变材料的研究进展进行了综述。 相似文献
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彩色太阳热反射涂料的研究进展 总被引:1,自引:0,他引:1
丁文皓朱洪立连军涛等 《化工新型材料》2014,(2):24-25,41
针对多个领域对彩色太阳热反射涂料的需求,简要分析了此类涂料的作用原理和国内外研究情况。重点介绍了此类涂料研究中的几个要点,包括彩色高反射颜料、微球填料和相关性能参数及检测方法。在今后的发展中,提高彩色高反射颜料的反射性能和降低生产成本,将纳米技术和微胶囊技术应用到微球填料的制备中,可以继续提高涂料性能并拓宽应用领域。 相似文献
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反射近红外辐射涂料的研究 总被引:7,自引:1,他引:6
根据电荷跃迁理论和能带理论,分析了红外反射材料物质的结构特征.理论上的近红外反射材料应该是电导率高、禁带宽度不在0.5~3.1eV范围内的物质.锐铁矿型和金红石型的TiO2符合此要求.本文作者利用空心玻璃微珠的高热阻,研究了用TiO2包覆的空心玻璃微珠作热反射材料的方法,并制备了对近红外线反射率超过80%的涂料. 相似文献
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草绿色反射太阳热涂料是高炮管热护套研制的一种军用特种涂料。文章通过对涂料反射机理的探讨,介绍了草绿色反射太阳热涂料配方设计和性能试验。草绿色反射太阳热涂料具有涂料一般性能,并具有突出的热反射性,热反射性能达到了美国军用涂料标准。经模拟阳光试验和实弹射击考核,证明了草绿色反射太阳热涂料具有良好的热防护性。目前已在炮管热护套上得到应用。 相似文献
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太阳能镀减反膜玻璃作为太阳能电池盖板玻璃,需要长期暴露于室外,因此了解太阳能玻璃减反膜的透过率及其稳定性具有重要意义。本文主要研究了在一定湿度和一定温度环境下,硫气氛下和未通入硫气氛下热处理后的太阳能玻璃减反膜透过率的变化。通过岛津UV-3600测定了玻璃的透过率;利用Nexus傅里叶变换红外光谱仪和INVIA显微共焦拉曼光谱仪测定了太阳能玻璃减反膜的结构。研究结果表明:太阳能玻璃减反膜的透过率稳定性与不同气氛下热处理后的结构有关;在水侵蚀作用下,减反膜的透过率与水的结合类型有关。 相似文献
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AbstractA convenient and reliable method to prepare procaterol HCl oral dosage form at an extremely low dosage (25 µg/cap) is presented in this paper. Procaterol HCl was mixed with the film-forming agent hydroxypropyl methylcellulose in an aqueous solution, which was then spray-coated on sugar spheres (Nu-pareil PG 20/25) to produce procaterol HCl pellets. The IR spectra of coated and noncoated pellets indicated that procaterol HCl was coated on the sugar spheres successfully with a weight increment less than 1%. Most of the coated pellets were able to pass through an 18-mesh screen with no agglomeration. The average weights of coated pellets filled inside of capsules were monitored during the filling process. A simple liquid chromatographic method was developed and validated for the assay and uniformity test of procaterol HCl in different dosage forms. The results of assay and content uniformity test for both in-house product and a commercial product, i.e., Meptin®-mini tablet, were satisfied. The data of f2 function and ANOVA analysis for the dissolution profiles of both procaterol HCl products suggested that they are pharmaceutical equivalent.In an in vivo study (n = 24), a single dose of 75 µg procaterol HCl was administrated to each volunteer and the plasma concentration of procaterol was determined by a LC/MS/MS method, developed by the same authors. There were no significant differences (p > 0.05) in the data of AUC0→16h, AUC0→∞, Cmax, and MRT for both preparations. It is confirmed that the pellets capsule produced in this study is bioequivalent with Meptin®-mini tablet. 相似文献
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对异型折叠纸盒各体板之间的关系建立了数学模型。建立了相应三维坐标,并用齐次坐标表示各点位置,利用各点坐标与转换矩阵相乘的方法推导出了其成型角与纸盒成型后体板折叠角度之间的关系式。该数学模型为计算折叠纸盒的容积、体积和相关缓冲结构及其相关软件开发奠定了基础。 相似文献