珠光粉末涂料的研制

采用珠光颜料与粉末涂料混配的方法，研制成珠光粉末涂料。该粉末涂料既具有珠光装饰作用，又保持了粉末涂料固有的优异性能。列举了银白色珠光粉末涂料的性能指标。讨论了珠光颜料与粉末涂料混配时粉末涂料组分、珠光颜料粒径和珠光颜料用量的选择，以及两者的混配方法。     

浅谈铝型材专用珠光粉末涂料的研制

通过实验数据分析,探讨了一种铝型材用高耐候珠光效果粉末涂料的关键技术,研究内容包括:构成铝材专用耐候性粉末涂料的饱和聚酯树脂、颜填料、助剂、消光剂、珠光颜料,找出了符合国标《GB5237.4-2008粉末喷涂型材标准》要求的各种原材料。运用我司的邦定工艺,设置合理的邦定工艺参数,制成了型材用高耐候珠光效果粉末涂料。     

氟碳-聚酯复合型超耐候粉末涂料的研制

针对纯氟碳粉末涂料在附着力、对颜料润湿差的缺陷,从降低成本和推广应用的角度出发,采用氟碳树脂体系和聚酯树脂体系的复合方式,优选无机陶瓷颜料,研制出一种性价比高的氟碳-聚酯复合型超耐候粉末涂料。     

纯聚酯粉末涂料的发展概况

本文介绍了国内外纯聚酯粉末涂料的发展情况,纯聚酯粉末涂料的制备方法及其特点。重点探讨了羟基及羧基两种类型的聚酯所采用的固化剂及其固化体系,并指出了今后纯聚酯粉末涂料发展的趋势。     

电弧喷涂与粉末涂料喷涂复合涂层防护技术

研究了热固性粉末涂料用作金属热喷涂涂层的封闭层及面层的防护技术,比较了分别喷涂环氧锌基重防腐粉末涂料、纯聚酯粉末涂料,喷涂环氧锌基重防腐粉末涂料后再喷涂纯聚酯粉末涂料以及热浸镀锌后喷涂纯聚酯粉末涂料等试样在不同盐雾和人工加速老化时间下的附着力.结果发现,只有熔融黏度偏低的环氧类粉末涂料适合用作封闭层.该复合涂层技术已应用于高速公路护栏上.     

珠光颜料在粉末涂料中的应用

尽管装饰性粉末涂料有巨大的需求，但其市场份额仍然很低，新型的珠光颜料的开发使生产装饰性粉末涂料更加容易。     

热固性纯聚酯粉末涂料的制备

纯聚酯粉末涂料是集装饰性和防腐蚀性为一体的粉末涂料大家族中的新成员。本文阐述了聚酯树脂的制备、固化剂的选择、固化机理的探讨和聚酯粉末涂料的制粉工艺等内容。纯聚酯粉末涂料成本低廉、性能优良、应用广泛,积极地开发、研制和生产纯聚酯粉末涂料,将会产生较深远的社会影响和较高的经济效益。本文注意了成果的应用性和现实的可行性。     

无机颜料对聚酯/环氧粉末涂层理化性能的影响研究

讨论了常用的无机颜料对聚酯/环氧粉末涂料体系物理以及化学涂膜性能的影响。     

颜填料对聚酯环氧粉末涂料的影响

研究了不同型号钛白粉、无机颜料、有机颜料、填料的品种和用量对聚酯环氧粉末涂料的影响，为科学合理地设计粉末涂料的配方提供依据。     

粉末涂料

<正>201512010由氟聚物粉末涂料和聚酯粉末涂料构成的复合粉末涂料及其制备:JP2015 134 889[日本专利公开]/日本:Lixil Corp.等(Nakaoji,Hiroki等).-2015.07.27.-13页.-2014/7 469(2014.01.20)题述复合粉末涂料通过干混方式将(A)氟聚物粉末涂料和(B)聚酯粉末涂料混合而得。其中,氟聚物粉末涂料的颜料体积溶度(PVC)≥5%,高于聚酯粉末涂     

片状氧化物粉体在珠光颜料中的应用

片状氧化物粉体具有特殊的二维平面结构，可以替代云母制备第二代效应颜料，赋予珠光颜料更优异的珠光效应与良好的应用性能。介绍了几种重要的片状氧化物的合成及其在珠光颜料中的应用。     

High chroma pearlescent pigments designed by optical simulation

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.     

珠光颜料在涂料中的应用

本文从云母珠光颜料所具有的多重光色效应出发，阐述了以其配制的珠光涂料的生产工艺，及珠光颜料的成色原理。     

立体幻彩粉末涂层

采用幻彩珠光颜料配制底层粉末涂料，并在其上喷涂罩光透明粉末涂料，形成具有立体幻彩效果的粉末涂层，适用于休闲娱乐与游乐设施的外装饰。     

用MOCVD法制备铁系云母珠光颜料

以Fe(CO) 5为物源 ,在常压喷动流化反应器中 ,以金属有机化学气相沉积 (MOCVD)法对云母粉进行包覆 ,制备铁系 -云母珠光颜料。实验结果表明 :在沉积温度 2 5 0℃ ,氧气流量 3mL·s-1,沉积时间 5min时能得到棕色色泽的珠光颜料 ;随着沉积温度的提高和反应时间的延长 ,可获得红棕、金红、橙红、深红等不同色泽的珠光颜料。用色差仪测定颜料的明度值L 、红度值a 、黄度值b ;X衍射仪表征颜料的表面成分 ;酸滴定计算氧化物的涂覆率。探讨了温度、时间、氧量对珠光颜料表面成分和珠光光泽的影响     

云母钛珠光颜料光学特性的分析及应用

云母钛珠光颜料具有极高的折光率、珠光效应和视角门色效应，珠光光泽细洁柔和，装饰性极佳，为涂料工艺设计提供了创造新的色彩和装饰效果的广阔领域。国外高档豪华型轿车都采用含有该颜料的面漆涂装，本文对该颜料的光学特性作了概略的分析。     

Measuring flake orientation for metallic coatings

Metallic and pearlescent coatings, very popular in automotive applications, contain flake shaped pigments. The orientation distribution of these flakes inside the effect coatings determines to a large extend the color and visual appearance of the coating. Unfortunately the measurement of flake orientation distributions is far from straightforward. The two main current techniques use analysis with light microscopy on cross cuts, and confocal microscopy.We used both techniques on a large set of samples. A set of 117 metallic coatings were analyzed, where we varied the concentration of metallic pigment, the concentration of so-called disorienting agent and the type and size of metallic pigment. Trends that for a long time have been assumed to be true were now unambiguously proven true, and can now be stated in a quantitative manner. For example, large flakes generally show better orientation than small flakes. For waterborne cornflake pigments, we measured an orientation width of 19.4° for flakes with a median diameter of 16 μm, and only 7.2° for flakes with a median diameter of 35 μm. Surprisingly we found only a small effect on flake orientation when disorienting agent was added to a color formula.     

略论珠光颜料与涂料的色彩艺术

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     

The pigmentation of powder coatings with the use of block copolymer dispersants

The dispersing of pigments in powder coatings is a difficult and complicated process. The incomplete dispersion under standard extrusion conditions can be attributed to a combination of poor pigment wetting and insufficient disruption of the pigment agglomerates, as a result of the rheological properties of the powder coating resin. The use of block copolymer dispersants for improving the pigment dispersion in powder coatings is studied in this project. Novel block copolymer dispersants from 2-vinylpyridine and ε-caprolactone have been synthesized and tested. These block copolymers show a high affinity for TiO₂ pigments and are capable of improving the stability of a TiO₂ dispersion in a polyester powder coating resin.     

Effect of substrate on the phase transformation of TiO2 in pearlescent pigment

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.