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陶瓷颜料的颜色测量与评价 总被引:1,自引:0,他引:1
本文针对国内陶瓷颜料颜色的主观目视评价法的局限性,从颜色科学基本理论出发,提出了三种客观的陶瓷颜料测量方法(即:分光光度法,颜色密度法,CIE标准色度法),并分析了它们的颜色评价原理。这对实现陶瓷颜料的标准化生产具有重要意义。 相似文献
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陶瓷颜料颜色与结构关系的探讨 总被引:8,自引:0,他引:8
本文从微观结构入手,在理论上系统地分析了陶瓷颜料的结构与颜色之间的关系,讨论颜料颜色的产生,颜色的表征及颜色的类型。结合常用陶瓷颜料的特点分析陶瓷颜料的结构与呈色的关系,讨论影响陶瓷颜料性能的因素,结合实例对影响颜料性能、颜色及使用的因素进行综合分析。 相似文献
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本文介绍了几种陶瓷颜料的新品种和新制备技术,如:超声-共沉淀、共沉淀-水热、微波溶胶凝胶、微波水热、微乳液-水热、自蔓延燃烧-水热技术等;简单讨论了陶瓷颜料的颜色性能与微观形貌结构的关系,指出研究颜料的微观形貌结构与颜色性能研究将是陶瓷颜料发展的新方向。 相似文献
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本研究主要采用国际照明委员会(CIE)推荐的色度规定和测色方法,对影响陶瓷颜料颜色测量的诸因素做了分析和研究,最终确定了陶瓷颜料颜色测量和表征的最佳方法。 相似文献
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现如今大多数无机颜料含有Cd、Co、Cr、Hg等有毒元素,它们在使用过程中的析出会对环境和人体健康造成危害,所以需要研发环境友好型颜料来替代含有有毒元素的无机红色料。通过一定的工艺流程制备出一系列化学式为Ce0.95SnxPr0.05-xO2(x范围为0~0.05)的颜料,得到的颜料颜色从深红色到砖红色再到浅白黄色,合成的颜料应用于彩色氧化锆陶瓷中,得到橙黄色至淡黄色到浅白黄色的陶瓷片样品。陶瓷样品的维氏硬度在11.33~12.97 GPa之间,断裂韧性在5.8~6.5 MPa?m1/2之间;L*均在80以上,b*在19.5以上。结果表明:合成的红色颜料颜色饱满可调,可以成为传统有毒颜料的替代品;得到的氧化锆陶瓷样品均为纯四方相氧化锆,以化学式Ce0.95Sn0.01Pr0.04O2为颜料合成的陶瓷样品颜色显示效果最好(L*=83.81、a*=6.47、b*=31.77)。 相似文献
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Dyeing of cationised cotton using nanoscale pigment dispersions 总被引:2,自引:0,他引:2
Cotton modified with a cationic reagent has been dyed by an exhaustion process using nanoscale pigment dispersions. Pigment uptake, colour yield and fastness properties on cotton were measured. Uptake of pigment was found to be closely related to the concentration of cationic reagent, pH of the pretreatment bath, pretreatment temperature and time of cationisation. These factors also influenced the fastness properties of the fabric. Nanoscale pigment dispersions gave a much higher colour yield than conventional pigment dispersions on cotton. Fastness properties were acceptable for wash-down effects. It is clear that exhaust dyeing using nanoscale pigment dispersions offers a number of advantages in terms of pigment requirement, improved handle and appearance, and also in environmental protection. 相似文献
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本文对有机颜料的重要改性方法之一:有机颜料衍生物的改性技术的基本原理、特性及作用进行了论述:介绍了作为改性剂的有机颜料衍生物结构类型,主要肺料类别品种的衍生物改性效果及应用特性。 相似文献
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详细介绍了以对二甲苯法合成喹吖啶酮颜料及颜料化方法,讨论了对二甲苯的卤化反应等对合成颜料 ,性能的影响,以及溶剂的种类与用量,助剂等因素对颜料化处理的影响。 相似文献
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研究了莴笋叶绿色素的提取及其理化性质。结果表明在 3 0 %丙酮及 5 %氢氧化钠溶液中易于提取 ,得到绿色粉末状的绿色素 ,该色素对光、热和糖类具有较好的稳定性 相似文献
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Photocatalytic oxidative paints (e.g., a paint containing nano‐TiO2) are used to break down volatile organic compounds to CO2 by photooxidation reactions. In this research, a photocatalytic oxidative pseudo‐paint was made with acrylic–styrene copolymer latex, TiO2 pigment, calcium carbonate extender, and TiO2 nanoparticles as a photocatalyst. To investigate the effects of the pigment, extender, and nanoparticles on the mechanical properties of the samples and their relationship to their photocatalytic activity, different contents of the particles were dispersed in the paint formulation. The tensile strengths (TSs) of the samples were measured as the mechanical properties. The samples were characterized by scanning electron microscopy analysis. We found that up to 3% nano‐TiO2 enhanced the mechanical properties of the pigmented resin, whereas beyond this, TS decreased. In samples containing 3% nanoparticles, the incorporation of 15% TiO2 pigment caused optimized mechanical properties, and beyond that, TS decreased because of particle agglomeration. In the absence of nanoparticles, the samples showed improvements in the mechanical properties with up to a 40% loading of pigment. The results reveal that the samples containing nano‐TiO2 and pigment showed the same trend for the mechanical and photocatalytic properties before the critical pigment volume concentration (CPVC). However, when the extender was incorporated or TiO2 particles were loaded beyond CPVC, the mechanical and photocatalytic properties correlation was compromised, and they were not directly correlated. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 42885. 相似文献