共查询到19条相似文献,搜索用时 234 毫秒
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通过把金黄色云母珠光颜料分散在四种陶瓷熔块釉中,研究了云母珠光颜料在建筑陶瓷釉面砖装饰的呈色和光泽效果,利用XRD衍射仪、测色仪等仪器对所制备的仿金陶瓷釉面进行了性能表征.结果表明:当金黄色锂云母珠光颜料为15wt%时,被装饰的釉面随着温度升高到900℃快烧时,都呈现较强的金色光泽;但随着温度的继续升高或烧成周期的延长,都会导致金色光泽减弱,通过XRD分析表明,这主要是由于锐钛矿向金红相转化和锂云母相向钾长石相转化所致.该颜料的研制有望替代昂贵的金属装饰. 相似文献
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利用液相沉积法对不同粒径的氟金云母钛珠光颜料制备工艺进行了研究。探讨了反应温度、TiCl4浓度、TiCl4加料速度对幻彩系列颜料珠光效果的影响以及TiCl4用量与颜料幻彩颜色的对应关系。采用扫描电子显微镜(SEM)观察云母钛珠光颜料的表面TiO2膜形貌。研究结果表明:在反应温度为78℃、TiCl4浓度为1.5~2.0 mol/L时得到珠光颜料光泽好,其表面包覆的TiO2膜平整、连续、致密、粒径在40 nm左右。氟金云母的平均粒径越小,TiCl4的最佳加料速度越快。制备同一色彩珠光颜料时,不同粒径的氟金云母所需包覆的TiO2量以单位比表面积计基本相同,所以在颜料色彩相同情况下,只要测得氟金云母的比表面积,即可推算出不同粒径云母所需包覆的TiO2量。 相似文献
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采用液相沉积法制备云母钛珠光颜料,在制备单覆层TiO2/Mica的基础上再包裹一层Cr2O3得到双覆层云母钛,针对形成双覆层中探讨沉积过程的主要条件一煅烧温度和包覆剂滴加速度对反应形成覆层效果的影响,结果表明:当反应滴定速度为0.5mL/min,煅烧温度为800℃时达到最佳珠光效果。最后通过热重分析仪分析双覆层云母钛的稳定性良好。 相似文献
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为了获得高耐候性、耐热性、光泽度的云母钛珠光颜料,以不同锡盐和四氯化钛混合溶液作为沉积剂,采用化学液相沉积法,通过改变锡盐的类型、掺杂量等工艺参数制备出不同金红石晶型比例的云母钛珠光颜料。分别采用X射线衍射(XRD)、扫描电镜(SEM)和测色仪对获得的云母钛珠光颜料进行晶型、形貌和反射率的表征。结果表明:2价锡(Sn2+)不能促使云母钛向金红石型转化,而4价锡(Sn4+)是一种良好的金红石型云母钛珠光颜料导晶剂,其最佳掺杂量为10%(物质的量分数),最佳煅烧温度为800℃。在该条件下制备的二氧化钛产品金红石型比率达到93%,经扫描电镜观察发现,产品表面平整光滑,反射率测试结果证明其光学性能最佳。 相似文献
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化学诱导法制备金红石型云母钛珠光颜料 总被引:9,自引:0,他引:9
用化学诱导法制备金红石型云母钛珠光颜料,通过SEM,XRD等手段研究了化学诱导剂对颜料表面膜层微观结构及金红石含量的影响。结果表明:用少量SnO2,Fe2O3等金属氧化物对云母进行预膜处理,可有效地抑制云母基片对表层TiO2晶型转化的不利影响,诱导和促进TiO2的低温相变,提高颜料的珠光光泽。以SnO2-ZnO-C助剂为复合金红石诱导促进剂,在较低的焙烧温度(850℃)和较短的焙烧时间(0.5h)内制得了完全金红石化的云母钛珠光颜料,并从结构入手对诱导机理进行了初步探讨。 相似文献
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浅析珠光漆的珠光效果 总被引:2,自引:0,他引:2
根据配色原理,介绍了云母系珠光颜料的显色效果,并通过试验比较了球光颜料在不同底色漆中的显色效果,讨论了影响珠光漆珠光效果的因素,以及提高珠光漆珠光效果和遮盖力的途径。 相似文献
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略论珠光颜料与涂料的色彩艺术 总被引:7,自引:1,他引:6
从云母钛珠光颜料所具有的多重光色效应出发,阐述以其配制的珠光涂料在轿车一类高装饰性涂装中的地位和作用,并探讨采用这种新型效应颜料创造全新色彩艺术效果的途径和方法 相似文献
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我国云母钛珠光颜料质量差距及改进措施 总被引:12,自引:2,他引:10
通过国产和国外云母钛珠光颜料产品的质量分析和比较,阐述了国产云母钛珠光颜料与国外同类产品在光泽、颜色、湿润性和分散性4个方面的差距。从云母薄片的制造、分级、包膜技术和颜料表面处理等方面,探讨改进国产珠光颜料质量的措施。 相似文献
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Young Cheol Ryu Tae Gun Kim Guem-Seok Seo Jin Hwan Park Cha Soo Suh Seong-Soo Park Seong-Soo Hong Gun Dae Lee 《Journal of Industrial and Engineering Chemistry》2008,14(2):213-218
The TiO2/substrate pearlescent pigments were prepared by the hydrolysis of TiOCl2 on the substrate followed by a calcinations process. The natural mica (muscovite), synthetic mica (fluorophlogopite) and -alumina flake were selected as the substrates for pearlescent pigments. The effect of substrate on the anatase to rutile (A–R) phase transformation of TiO2 was studied. The A–R phase transformation of TiO2 during the preparation of pearlescent pigments and their proportion in the TiO2 layer have been analyzed by XRD measurements. The phase compositions of TiO2 layer in each pearlescent pigment are quite different depending on the substrates. The TiO2 layer deposited on -alumina has higher rutile fraction than those on the natural and synthetic mica. The XPS analysis showed that the cations originally present in the substrates diffused into the TiO2 layer. The TiO2 layer deposited on -alumina contains Al, while those on the natural and synthetic mica substrates contain Si and K in addition to Al. The metal cations diffusing from the substrate into TiO2 layer might retard the A–R phase transformation of TiO2. The suppressing effect on the A–R transformation of TiO2 by mixed cations seems to be much stronger than that of single cation, resulting in relatively higher rutile fraction in the case of TiO2 layer deposited on -alumina. 相似文献
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Hiroyuki Shiomi Eiichirou Misaki Maoya Adachi Fukuji Suzuki 《Journal of Coatings Technology and Research》2008,5(4):455-464
Pearlescent pigments are one of the most essential materials not only in paints, plastics, and printing inks, but also in
cosmetics. Pigments with higher chroma, color purity, and brightness are in high demand all over the world. In this study
we developed a high chroma pearlescent pigment for powder foundation. To produce the high chroma pearlescent pigment, we have
designed the layer structure of a pearlescent pigment using computer simulation. In the simulation we have considered its
layer structure, the complex refractive indices of the layers, and the thickness distribution of a mica substrate that was
measured with Atomic Force Microscopy (AFM). The layer thicknesses have been optimized. The feature of this design is that
iron oxide having selective light absorption has been adopted as the layer material to enhance certain wavelengths of the
reflected light, which is one of the properties of high chroma. Thus, we have found that a mica substrate homogeneously coated
with iron oxide which is further coated with colorless titanium dioxide has a high chroma compared to ordinary pearlescent
pigments. The designed pigment has been synthesized by developing a novel manufacturing method to achieve a low roughness
iron-oxide surface. We believe that this simulation is useful for designing other pearlescent pigments. 相似文献