颜料酞菁绿分散性研究

本文以酞菁绿膏状物为原料,采用不同类型的添加剂,对其进行处理。研究了添加剂种类、添加剂用量对酞菁绿易分散性的影响。结果表明,以某些非离子表面活性剂和两种不同类型添加剂复配、添加剂用量为颜料量的５％￣７％时,可以提高颜料的易分散性和分散稳定性。     

酞菁绿颜料的细化

本文采用了不同类型的表面活性剂对酞菁绿进行了表面处理，考察了不同极性基团，碳链长度，表面活性剂用量及不同分散介质对颜料粒子的粒径分布的影响，发现羟基，氨基和羧基作主锚固基团的ＳＰＡＮ和ＴＷＥＥＮ类，脂肪胺和脂肪酸类表面活性剂均有利于酞菁绿颜料的细化，表面活性剂的最好用量为５％～８％，弱极性有机介质利于酞菁绿绿颜料的分散。     

酞菁绿颜料的表面处理

本文采用了不同类型的表面活性剂对酞菁绿进行了表面处理,考察了不同极性基团,碳链长度,表面活性剂用量以及不同分散介质对颜料粒子的粒径分布的影响,发现以－ＯＨ、－ＮＨ２和ＣＯＯＨ作为锚固基团的Ｓｐａｎ和Ｔｗｅｅｎ类,脂肪胺和脂肪酸类表面活性剂均有利于酞菁绿颜料的细化。在锚固基团相同的条件下,碳链长度在１２～１８碳范围内随碳链增加有利于颜料的细化但作用不大。表面活性剂的最好用量为５％～７％。弱极性有机介质有利于酞菁绿颜料的分散。     

AAFC在酞菁绿颜料表面处理中的应用

本文自行设计并合成了分子量在１０００以上,以多个－ＮＨ－和－ＯＨ作为锚固基团的梳型大分子分散剂ＡＡＦＣ（烷基酚－烷基胺甲醛缩合物）。研究了用ＡＡＦＣ对酞菁绿颜料进行表面处理的方法。考察了ＡＡＦＣ的不同加量对酞菁绿颜料的粒径分布、润湿性的影响。对经ＡＡＦＣ处理后的酞菁绿颜料的表面自由能、表面自由能的色散和极性成分进行了估算。经５％ＡＡＦＣ处理后的酞菁绿颜料以正辛醇为分散介质,粒径在０～１μｍ区间的粒子达９８％以上。与十八胺相比经ＡＡＦＣ处理后的酞菁绿颜料具有更好的分散性。加量以５～７％为宜。     

表面活性剂对Sm2Zr2O7纳米热障涂层材料烧结性能的影响

采用水热合成法制备Sm2Zr2O,纳米晶体,研究了聚乙二醇(PEG)、十六烷基三甲基溴化铵(CTAB)、十二烷基苯磺酸钠(SDBS)三种不同类型的表面活性剂对材料相结构、分散性能以及烧结性能的影响.实验结果表明:材料的物化性能与表面活性剂的类型密切相关,阳离子表面活性剂的添加抑制了材料由萤石结构向烧绿石结构的转变,样品比表面积为174.67 m2·g-1,经过高温烧结后块材的体积收缩和相对密度分别为24.5％和81.2％.相比之下,阳离子表面活性剂CTAB对于提高材料的抗烧结性能方面要明显好于非离子表面活性剂PEG和阴离子表面活性剂SDBS.     

C.I.颜料红48:2的改性

在C I 颜料红48∶2的合成过程中,用不同类型的表面活性剂对其实施表面处理,研究了表面活性剂结构对C I 颜料红48∶2性能的影响。结果表明,添加阴离子表面活性剂、松香及其衍生物以及松香与阴离子表面活性剂、高分子分散剂的复配可以明显改善C I 颜料红48∶2的色光、透明度、流动性、着色力及分散性等多项应用性能。     

颜料黄81改性研究

本文在C I P Y 81 (颜料黄 81 )合成的基础上 ,用不同类型的表面活性剂对其实施表面处理 ,并研究了表面活性剂结构及添加量对C .I.P .Y .81性能的影响。结果表明 ,添加非离子表面活性剂和阴离子表面活性剂 ,例如OP - 7,OS - 1 5及红油 ,可以明显改善C .I.P .Y .81的色光、透明度、流动性及着色力等多项应用性能 ,通过试验得到了较佳的工艺性条件 ,较佳添加量为颜料量的 3%～ 5% (质量分数 )     

表面活性剂对镍-铁-石墨烯复合镀层的影响

采用复合电镀的方法在7075铝合金上制备了镍-铁-石墨烯复合镀层,研究了不同种类、不同添加量的表面活性剂对镀液中石墨烯的分散性及复合镀层硬度、耐磨性的影响。采用SEM、EDS、XRD、Raman对复合镀层的结构形貌进行了表征。研究结果表明:与未添加表面活性剂的镍-铁-石墨烯复合镀层(硬度为823.9(HV),摩擦系数为0.1999)相比,添加石墨烯质量的80%的阴离子表面活性剂十二烷基硫酸钠(SDS)有利于石墨烯在复合镀液中的分散,能够显著地提高复合镀层的硬度和耐磨性能,其硬度提高了13.38%,摩擦系数降低了26.11%。     

甲基含氢硅油对喷雾干燥磷铵灭火粉性能的影响

采用喷雾干燥法制备了球形空心超细NH4H2PO4灭火粉,并添加甲基含氢硅油乳液、氟碳表面活性剂FK-510对粉体进行原位改性,研究了表面活性剂甲基含氢硅油对NH4H2PO4灭火粉的疏水性、表面元素、表面形貌、分散性及粒度分布的影响. 结果表明,干燥过程中甲基含氢硅油及FK-510迁移聚集于颗粒表面,且FK-510位于最外层而甲基含氢硅油位于次外层,明显提高灭火粉疏水性;添加甲基含氢硅油明显改善了粉体分散性,当硅油添加量为NH4H2PO4质量的3%时,所得产品疏水性、分散性和球形度良好,活化指数提高到93.7%.     

两性表面活性剂及脂肪酸对联苯胺黄G的改性研究

本文以两性表面活性剂和脂肪酸对联苯胺黄G表面改性，测定了颜料的流动性、润湿性和分散性。结果表明，添加脂肪酸后，颜料的流动性和在非极性介质中的润湿性和分散性有所提高；添加两性表面活性剂后，颜料的流动性及在极性、非极性介质中的润湿性和分散性均得以改善，并随活性剂用量的增加呈递增趋势。     

双子型表面活性剂涂易乐(ToynolTM)研磨分散剂在颜料研磨中的应用

本文介绍了双子基表面活性剂涂易乐(ToynolTM)DS-136在分散酞菁蓝、耐晒红、美国卡博特炭黑中的应用,并与国外同类产品进行性能比较。试验证明,涂易乐分散剂可以取得更好的研磨分散效果,具有更高的研磨分散效率;用量较少,色浆稳定性好;在研磨过程中可以获得更低的体系粘度;属于低泡分散剂;具有很好的颜料润湿性能等。     

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.     

乳液聚合法包覆酞菁蓝的制备及性能研究

在超细可聚合分散剂/酞菁蓝分散体中添加共聚单体和引发剂,采用乳液聚合法对酞菁蓝进行包覆。考察了共聚单体结构及用量、引发剂用量、反应温度和时间对包覆酞菁蓝性能的影响。结果表明,与甲基丙烯酸甲酯(MMA)和丙烯酸丁酯(BA)相比,苯乙烯(St)是较佳的包覆共聚单体,当St质量为颜料质量的20%,过硫酸铵(APS)质量为St与烯丙氧基壬基苯氧基丙醇聚氧乙烯磺酸铵(ANPS)总质量的1.0%,于70～80℃反应2 h时,所制备包覆酞菁蓝的粒径较小,稳定性较高。与未聚合分散体相比,包覆酞菁蓝的耐热稳定性、耐酸碱稳定性和离心稳定性均有明显提高,FTIR和TEM照片表明,酞菁蓝表面包覆了聚合物,且包覆酞菁蓝粒度分布更均匀。     

Adsorption characteristics of ionic and nonionic surfactants on hydrophobic pigment in aqueous medium

The current study is based on the investigation of the adsorption properties of ionic and nonionic surfactants on an organic hydrophobic pigment powder, namely, β‐copper phthalocyanine, in aqueous medium. The nonionic surfactants, selected systematically to represent varying degrees of ethoxylation, are nonylphenol ethoxylates, whereas the ionic surfactant is sodium oleate, a carboxylate‐type anionic reagent. The adsorption of surfactants was assessed qualitatively by surface analysis of powders, before and after the adsorption of the surfactants. The experimental results were explained by the structural and other properties of the surfactants and the surface properties of the pigment. The specific adsorption of surfactants on pigments was verified by zeta potential measurements, as they altered the zeta potential values to a great extent. Nonionic surfactants decreased the absolute value of the zeta potential of the powder; whereas anionic surfactant sodium oleate shifted the zeta potential to more negative values. On the one hand, Fourier Transform–infrared and X‐ray diffraction examinations of the pigments did not show any noticeable evidence for surfactant untreated or treated copper phthalocyanine. On the other hand, thermal analysis (both thermogravimetric and differential thermal analysis) showed clear evidence of the surfactants on both pigments, as substantial changes in thermogravimetric curves were assessed.     

St-MA-AA酯化改性高分子分散剂的合成与应用

以苯乙烯（St）、马来酸酐（MA）、丙烯酸（AA）为单体,采用溶液聚合法合成三元共聚物,并用正丁醇作酯化剂,对其进行部分酯化,制备出高分子分散剂St-MA-AA部分酯化物。将此分散剂应用于酞菁蓝颜料表面改性处理上,讨论了单体摩尔配比、分子量分布等因素对颜料平均粒径、Zeta电位、分散性（DE）和相对着色力（Kr）的影响。结果表明,St、MA、AA单体最佳摩尔比为1∶1∶0.5时,自制分散剂St-MA-AA部分酯化物与市售分散剂SMA1440相比,颜料的平均粒径降低了15%,Zeta电位上升了13%,离心稳定性升高了77%,着色力增加了9%,分散效果明显更好。     

Properties of copper phthalocyanine blue encapsulated with a copolymer of styrene and maleic acid

Copper phthalocyanine blue was encapsulated with a copolymer of styrene and maleic acid (PSMA) via a phase‐separation technique, and a PSMA‐encapsulated pigment dispersion was prepared. The effects of the additive on the stability of the dispersion were studied. Scanning electron microscopy photographs revealed that the particles in the PSMA‐encapsulated pigment dispersion were more uniform than those in a PSMA‐dispersed pigment dispersion. X‐ray photoelectron spectroscopy provided evidence that the PSMA‐encapsulated pigment acquired abundant carboxylic groups that could improve its wettability to water. Moreover, the results also indicated that the PSMA‐encapsulated pigment dispersion had improved color strength, its stability could be greatly influenced by the pH value and ion strength, and its apparent viscosity changed little with an increase in the shear rate. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

Synthesis and Characterization of A-B-A-Type Nonionic Dimeric Dispersants for Pigment Dispersion

An acid-catalyzed esterification method was employed to synthesize five A-B-A-type nonionic dimeric surfactants (XOP-3, XOP-4, XOP-6, XOP-9, and XOP-10) comprising of octyl phenyl ether (OP-10) and a homologous series of α, ω-dicarboxylic acids (C_3, C_4, C_6, C_9, and C₁₀) as the spacer molecules. The various surfactants produced were characterized based on Fourier transform infrared (FT-IR) spectroscopy, mass spectra (MS), and ¹H NMR spectra. The newly synthesized series of surfactants were used for the dispersion of Hostaperm Pink E (Pigment Red 122) in an ultrasonic disruptor. Based on the selected pigment, the interfacial, colloidal, and rheological properties of the pigment dispersion were examined. The dispersion performances and properties of the surfactants produced differed based on the number of carbon atoms in hydrocarbon chains of the various spacer molecules. Due to this, surfactants created with short to moderate hydrocarbon chain spacer molecules exhibited a better dispersion performance than that of surfactants created with long hydrocarbon chain spacer molecules. The calculated cross-sectional area values of the various surfactants synthesized confirmed their differences in dispersion performance and properties.     

节能减排的颜料印染与助剂(一)

颜料印染对当前印染行业节能减排,降低能耗很有意义,但要做到对纤维没有亲和力的颜料印染,必需制备润湿性、分散性良好的超细颜料粒子。重点阐述利用各种表面活性剂和助剂制备出一种包覆阴离子的超细粒子的稳定分散液,包括各种润湿剂、分散剂、黏合剂和纤维阳离子改性剂,还概述了相关基础理论。     

Surfactant screening techniques for effective dispersion of carbon black pigment

Effective dispersion of a pigment in a colour concentrate is imperative to its performance. A well dispersed pigment yields the true strength of a colour and becomes stabilised in the long run. To accomplish this, a suitable chemistry of the surfactant is a prerequisite for dispersion and stabilisation of the pigment. A plethora of surfactants are available commercially and it is very difficult to choose the right surfactant that suits the pigment chemistry. Carbon black, being difficult to disperse, was chosen in this study to provide dispersion from an effective surfactant. Simple screening processes, if available for these surfactants, can save a huge amount of time and energy compared with the conventional method of conducting individual experiments. This paper discusses the development of such simple surfactant screening techniques, which could make the selection process simpler and quicker.     

酞菁染料包覆TiO2制备红外反射颜料

采用酞菁染料(直接耐晒翠蓝GL)包覆金红石型TiO2制备蓝色系列红外热反射复合颜料,研究了TiO2的包覆工艺,获得了较优的工艺条件如下:m(BaCl2)∶m(TiO2)=0.2,反应温度80 ℃,反应液pH=8.将此复合颜料制成涂料,研究了涂料的红外反射、隔热及耐酸碱性能.结果显示,含此蓝色复合颜料的涂层其红外反射率高...