基于红色陶瓷喷墨色料的制备及性能研究

发布时间：2018-02-24 10:33

  本文关键词： 硫硒化镉 硅酸锆 包裹红色色料 水解共沉淀法 陶瓷色料　出处：《华东理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着陶瓷装饰技术的发展,喷墨打印成为陶瓷领域的研究热点。陶瓷喷墨打印墨水对色料的粒径有着严格的要求,而包裹红色色料的结构不适合于研磨,因此在陶瓷喷墨打印中的应用受到限制。本文以制备陶瓷喷墨打印的红色陶瓷色料为目标,研究硅酸锆包裹硫硒化镉色料的制备工艺条件对色料的粒径、呈色性能等方面的影响。(1)采用共沉淀法制备色剂硫硒化镉,考察反应温度,反应物浓度,煅烧气氛、温度、时间等对硫硒化镉结构、晶相、粒径的影响。研究结果表明:反应温度相对于反应物浓度对硫硒化镉一次晶粒的影响更大,改变温度和浓度,都不能改善前驱体的团聚情况。在氮气气氛煅烧的硫硒化镉色剂,较空气气氛制备的色剂团聚明显减弱。常规的球磨处理并不能改善色剂颗粒的团聚程度与尺寸大小。(2)采用共沉淀法对硫硒化镉进行硅酸锆包裹,考察煅烧工艺、反应物比例对包裹色料的结构、呈色性能、粒径的影响。研究结果表明:在氮气或石墨坩埚中煅烧对硫硒化镉的保护作用并不显著,选择将包裹硫硒化镉色料前驱体在空气中直接煅烧,牺牲表层色料保护内部色料。当原料比例为Cd:S:Se=4:3:1(摩尔比),锆镉比为3:1(摩尔比),在1050℃煅烧30 min可制得粒径D50为8.25μm,红值a*为29.97的包裹红色色料。(3)采用非水解溶胶凝胶法对硫硒化镉进行硅酸锆包裹,考察矿化剂种类,煅烧温度对硅酸锆晶相,煅烧温度、气氛对包裹硫硒化镉色料的结构、晶相、呈色性能的影响。研究结果表明:当矿化剂为偏钒酸铵时,制备的硅酸锆呈黄绿或蓝绿色,对后续红色色料的呈色会有影响;当矿化剂为氟化锂时,硅酸锆晶相不能在高温下稳定制备。制备的硅酸锆前驱体具有空间网格结构,有利于包裹小颗粒,酸性醋酸锆溶液对硫硒化镉的腐蚀,导致包裹红色色料的发色效果并不理想。(4)采用水解共沉淀法对硫硒化镉进行硅酸锆包裹,考察了包裹工艺,锻烧温度、气氛、原料比例对包裹色料的结构、呈色性能、粒径的影响。研究结果表明:较优的工艺条件为室温下(25℃),锆镉比为3:1(摩尔比),硅锆比为1:1(摩尔比),以氨水催化正硅酸乙酯水解1 h得硅溶胶,对共沉淀法制备的氢氧化锆和硫硒化镉悬浊液包覆得前驱体,空气中1050 ℃下锻烧30 min,可制备红值a*为32.04,D50在2μm 左右的包裹硫硒化镉色料,为包裹色料应用于喷墨打印提供了可行的思路。
[Abstract]:With the development of ceramic decoration technology, ink jet printing has become a research hotspot in ceramic field. Ceramic ink jet printing ink has strict requirements for the particle size of color, but the structure of wrapped red pigment is not suitable for grinding. Therefore, the application in ceramic inkjet printing is limited. In this paper, the preparation process of zirconium silicate coated sulfur cadmium selenide pigment is studied with the aim of preparing red ceramic pigment for ceramic inkjet printing. The effect of color properties on the structure and crystal phase of cadmium sulfide selenide was studied by coprecipitation method. The reaction temperature, reactant concentration, calcination atmosphere, temperature, time and so on were investigated. The results show that the reaction temperature has greater effect on the primary grain size of cadmium selenide than the concentration of the reactant. Changing the temperature and concentration can not improve the agglomeration of the precursor. The agglomeration of color agent prepared in air atmosphere was obviously weakened. The conventional ball milling treatment could not improve the agglomeration degree and size of color agent particles. (2) the cadmium sulfide selenide was coated with zirconium silicate by coprecipitation method, and the calcination process was investigated. The effect of reactant ratio on the structure, color performance and particle size of the coated pigment. The results show that the protective effect of calcining in nitrogen or graphite crucible on cadmium sulfide selenide is not significant. Choose to directly calcinate the precursor of the coated cadmium selenide pigment in air, Sacrificial surface pigments to protect internal pigments. When the raw material ratio is CD: s: 4: 3: 1 (mole ratio is 3: 1, mole ratio is 3: 1 (mole ratio, calcined at 1050 鈩，

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