稳定α-型铜酞菁的研制

本文报导了部分硝基取代的α-型铜酞菁的合成方法,采用红外光谱、x衍射、电子显微镜扫描对其晶型进行了研究,并测试其着色力和比表面积。结果表明:部分4-位硝基取代的-α铜酞菁在芳烃溶剂中具有抗晶型转变和抗絮凝的特点。     

铜酞菁颜料抗絮凝性的研究

本文合成了7种铜酞菁甲胺衍生物,并与铜酞菁制备了不同的颜料组成物.通过测定颜料组成物在醇酸树脂中不同时间的粘度值的变化,研究了铜酞菁颜料的抗絮凝性能;发现铜酞菁甲胺类衍生物的添加可以改进其抗絮凝性,其中环己胺衍生物具有更优良的效果.     

α-抗结晶酞菁蓝颜料的研究

本文合成了一种具有抗结晶性能的铜酞菁－Ａ（铜酞菁衍生物）并对α－酞菁蓝与铜酞菁－Ａ的混合方式和混合比对铜酞菁－Ａ的抗结晶性能的影响进行了研究,发现通过α－酞菁蓝与铜酞菁－Ａ的酸溶稀释混合法和干混合法可得到抗结晶的稳定型的α－酞菁蓝颜料,采用干混合法时,混合比低于１５∶１为宜。     

—α—抗结晶酞菁蓝颜料的研究

本文合成了一种具有抗结晶性能的铜酞菁－Ａ（铜酞菁衍生物）并对α－酞菁蓝与铜酞菁－Ａ的混合方式和混合比对铜酞菁－Ａ的抗结晶性能的影响进行了研究,发现通过α－酞菁蓝与铜酞菁－Ａ的酸溶稀释混合法和干混合法可得到抗结晶的稳定型的α－酞菁蓝颜料,采用干混合法时,混合比低于１５：１为宜。     

铜酞菁—A抗结晶机理的探讨

本文经可见光的吸光度测得铜酞菁－Ａ、α－铜酞菁和β－铜酞菁在二甲苯中饱和浓度的关系是：铜酞菁－Ａ约为α－铜酞菁的２０倍,β－铜酞菁的２００倍;α－铜酞菁约为β－铜酞菁的９倍,提出了铜酞菁－Ａ抗结晶的机理是铜酞菁－Ａ在二甲苯中的溶解度比α－酞菁 蓝和β－酞菁蓝大很多。因此,在二甲苯中铜酞菁－Ａ首先溶解,并且很快被α－酞菁蓝和β－酞菁蓝料颗粒吸附而将其包覆,从而抑制了α－酞菁蓝颜料粒子在二甲苯中通过奥     

铜酞菁-A抗结晶机理的探讨

文经可见光的吸光度测得铜酞菁－Ａ、α－铜酞菁和β－铜酞菁在二甲苯中饱和浓度的关系是：铜酞菁－Ａ约为α－铜酞菁的２０倍,β－铜酞菁的２００倍;α－铜酞菁约为β－铜酞菁的９倍。提出了铜酞菁－Ａ抗结晶的机理是铜酞菁－Ａ在二甲苯中的溶解度比α－酞菁蓝和β－酞菁蓝大很多。因此,在二甲苯中铜酞菁－Ａ首先溶解,并且很快被α－酞菁蓝颜料颗粒吸附而将其包覆,从而抑制了α－酞菁蓝颜料粒子在二甲苯中通过奥斯特瓦尔德熟化过程而转变为结晶粗大的β－铜酞菁。铜酞菁－Ａ的加量应大于７％为宜。     

邻苯二甲酰亚胺甲基铜酞菁的合成

铜酞菁经酸溶后与仲甲醛、邻苯二甲酰亚胺反应，合成了邻苯二甲酰亚胺甲基铜酞菁。该产品具有较强的抗结晶、抗絮凝的性能。     

ε—型铜酞菁的研究

一、前言ε-型铜酞菁在酞菁系颜料中以着色力高、色泽鲜艳、耐热及耐溶剂等优良特性和特殊的光电导性而受到国内外普遍重视,研究日趋深入,在日本和欧美一些国家已有商品出售。ε-型铜酞菁一般用于涂料、塑料及油墨,日本还将其用于静电复印。关于ε-铜酞菁颜料的制备,国外研究较多,但对其核心部分及结晶特性的研究尚未见到详细报导。从多数报导来看,其制备方法不外乎两大类:1)用苯酐、尿素为原料,以有机溶剂法或固相融熔法直接合成获得。ε-型铜酞菁;2)以β-、α-或γ-型铜酞菁为原料经机械     

铜酞菁的晶相调整及后处理研究(I)——铜酞菁的晶相性质及调整方法

本文运用各种仪器和测试方法,对α-和β-铜酞菁颜料的晶体性质、晶相调整和颜料化方法进行了研究.发现不同晶相铜酞菁色光的差别本质在于晶体中的分子堆积形式不同.本文考察了酸溶法制α-铜酞菁颜料中稀释温度与颜料质量的关系.并找到了一些不使α-铜酞菁转相的有机溶剂,用这类溶剂回流处理α-铜酞菁颜料能提高颜料的质量.本文还探索了国外新的β-铜酞菁颜料化方法——晶种法.     

铜酞菁的晶相调整及后处理研究(Ⅱ)—a-铜酞菁在有机溶剂中的晶相转变速度与机理探讨

本文对α-铜酞菁在甲苯中的晶相转变速度同温度、时间的关系,做了实验性的研究比较,并计算出在甲苯中的活化能E为60.2kJ/mol.对α-铜酞菁在各种不同溶剂中的晶相转变速度,做了比较试验,结果表明,α-铜酞菁在溶剂中的晶相转变速度,主要决定因素是它在溶剂中的溶解度.α-铜酞菁在溶剂中的溶解度可以直接用分光光度计进行测定.本文还指出:α-铜酞菁在那些难以溶解的溶剂中转变为β-铜酞菁时对Ostwald结晶生长并无重要影响.     

铜酞菁磺酰胺衍生物对铜酞菁的表面处理

合成了一系列铜酞菁磺酰胺衍生物,并用它们对铜酞菁颜料进行表面处理以改进铜酞菁颜料的分散性、润湿性.通过研究初步认为:添加铜酞菁磺酰胺衍生物能提高铜酞菁颜料在水中的分散性,以添加5%具有短脂肪链的铜酞菁磺酰脂肪胺衍生物组份的分散率为最高.     

Role of pigments in the stability of polyethylene systems

The photodegradation processes of high‐density polyethylene (HDPE) films containing either a phthalocyanine‐based pigment, or a rutil (TiO₂)‐based pigment, as well as of the unpigmented films stabilised differently were investigated during photo‐ageing, applying mechanical, gel content and XPS measurements. The phthalocyanine pigment‐containing film showed degradation characteristics (abrupt decrease of elongation at break after short irradiation period, no gel formation, high concentration of oxygen‐containing functional groups on the surface) similar to those of the films containing a low amount of stabiliser. The behaviour of the TiO₂‐containing film and that of the unpigmented films containing a higher amount of stabiliser were also similar (slow decrease of elongation at break, increase of gel content, lower amount of oxygen‐containing functional groups on the surface). The concentration of oxygen‐containing functional groups in samples pigmented with phthalocyanine increased remarkably with increasing processing temperature. The results suggest that the phthalocyanine pigment influences the photostability indirectly, through reduction of the thermal stability of polymer due to the adsorption of the thermal stabiliser by the phthalocyanine pigment. Coating the surface of phthalocyanine with reactive surfactant improved the photostability of the HDPE film.     

微悬浮法制备有机颜料微胶囊中的粒径调控

为调控有机颜料微胶囊的粒径及其分布,在分析微悬浮聚合过程粒径变化的基础上,系统研究了微悬浮聚合工艺(均质化剪切速率、搅拌速率)和配方(有机颜料、分散剂含量)对颜料微胶囊粒径的影响。发现当搅拌速率为250 r·min^-1时,单体液滴的融合和乳胶粒的粘并现象均较少,聚合体系可较稳定地保持均质化单体液滴的尺寸。分散剂磷酸三钙TCP用量对体系稳定性影响明显,但其粒径调控能力有限。均质化强度对微胶囊粒径影响明显,具有较好的调控能力,而颜料含量对微胶囊粒径的影响较少。因而通过聚合工艺和配方的综合调节,可制得一系列颜料含量高、粒径分布窄、粒径可调范围较大的"石榴状"有机颜料微胶囊。     

Application of thermo-responsive poly(methyl vinyl ether) containing copolymers in combination with ultrasonic treatment for pigment surface modification in pigment dispersions

The process of surface modification of hydrophobic organic (copper phthalocyanine (CuPc)) as well as hydrophilic inorganic pigments (titanium dioxide) in aqueous dispersions by employing tailor-made thermo-responsive copolymers and the colloidal stability have been studied as a function of temperature. The pigment surface modification is achieved by conventional adsorption and by thermoprecipitation of amphiphilic methyl vinyl ether (MVE) containing block and graft copolymers, exhibiting a lower critical solution temperature (LCST), with poly(isobutyl vinyl ether) blocks and poly(ethylene oxide) side chains, respectively. The effect of mechanical treatment of the pigment dispersion by ultrasonic power alone or in combination with the LCST property was investigated. The course of the pigment surface coating process was followed by the electrokinetic sonic amplitude (ESA) method. The temperature-controlled sorption of PMVE-g-PEO graft copolymers on both inorganic and organic pigment surfaces was investigated. It was found that ultrasonic treatment together with LCST thermoprecipitation is a promising method for the surface modification of pigments with regard to dispersion stability.     

Preparation and properties of polymer-encapsulated phthalocyanine blue pigment via emulsion polymerization

Polymer-encapsulated phthalocyanine blue pigment dispersion was prepared with a polymerizable dispersant by emulsion polymerization method, and the effect of preparation conditions on the particle size of dispersion was investigated. Dynamic light scattering measurement demonstrated that allyloxy nonyl-phenoxypropanolpolyoxyethyleneetherammonium sulfonate (ANPS) was suitable for phthalocyanine blue pigment modification. The polymer-encapsulated phthalocyanine blue pigment dispersion with the small particles was obtained when the mass ratio of ANPS to phthalocyanine blue pigment, styrene (St) to phthalocyanine blue pigment, and ammonium persulfate (APS) to St was about 0.2, 0.2, and 0.01, respectively. Transmission electron microscopy (TEM), Fourier transforms infrared spectra (FTIR) and thermogravimetric analyses (TGA) provided supporting evidences for the encapsulation of phthalocyanine blue pigment with the formed copolymer. The polymer-encapsulated phthalocyanine blue pigment dispersion showed excellent stabilities to freeze–thaw treatment and centrifugal force.     

Hindered settling of organic pigment dispersions in hydrocarbon liquids

A modified Steinour hindered settling method has been developed for the study of dispersed organic pigment species containing a large proportion of associated immobile liquid. These species are termed flow units with effective volumes and densities different from those of the pigment itself. The effective volume and density are calculated from the final sediment volume fraction after correction (if practicable) by an appropriate packing factor. The mean flow unit diameter (or a size parameter) can then be estimated. The present method has been satisfactorily tested using formalin-fixed yeast cells as model flow units which can be sized readily by optical microscopy. Data for organic pigment dispersions compare well with their appearance under the optical microscope. Various uses of simplified versions of the present technique in studies of dispersibility and dispersion stability of organic pigments are described and exemplified using mainly copper phthalocyanine pigments in hydrocarbon solvents.     

Hindered settling of organic pigment dispersions in hydrocarbon liquids

A modified Steinour hindered settling method has been developed for the study of dispersed organic pigment species containing a large proportion of associated immobile liquid. These species are termed flow units with effective volumes and densities different from those of the pigment itself. The effective volume and density are calculated from the final sediment volume fraction after correction (if practicable) by an appropriate packing factor. The mean flow unit diameter (or a size parameter) can then be estimated. The present method has been satisfactorily tested using formalin-fixed yeast cells as model flow units which can be sized readily by optical microscopy. Data for organic pigment dispersions compare well with their appearance under the optical microscope. Various uses of simplified versions of the present technique in studies of dispersibility and dispersion stability of organic pigments are described and exemplified using mainly copper phthalocyanine pigments in hydrocarbon solvents.     

一种新型的可溶性铜酞菁衍生物的合成及其性能研究

通过将铜酞菁氯磺化后 ,与带活性羟基质子的苯酚反应 ,合成了一种与铜酞菁基体色光基本不变 ,但在有机溶剂中溶解度十分大的新型铜钛菁衍生物———铜酞菁磺酸苯酯。用元素分析、IR和热重分析等对其进行了表征。用UV光谱分析了产物的色光。测试了产物的溶解度和凝聚性能     

分光光度法用于酞菁颜料中游离铜的测定

用稀硫酸提取酞菁颜料中的铜,在弱碱性条件下,Cu2＋和二乙基二硫代氨基甲酸钠定量反应,生成不溶于水但溶于三氯甲烷的黄色络合物,该络合物能定量吸收440nm波长的光,然后根据吸光度的大小来测定溶液中铜离子的浓度。