紫外光固化粉末涂料

紫外光（UV）固化粉末涂料综合了传统粉末涂料和辐射固化技术诸多优点，是涂料工业的前瞻性产品。本文介绍了紫外光固化粉末涂料的配制，固化机理，涂装工艺及潜在应用，并对其最新研究进展进行了综述。     

紫外光固化耐磨涂料的进展

综述了紫外光固化耐磨涂料的进展情况 ,着重介绍了溶胶 -凝胶法制备紫外光固化耐磨杂化涂料的研究进展。     

紫外光固化涂料简介

本文简介感光性高分子的紫外光固化涂料的发展简史、固化机理及发展方向。     

紫外光固化涂料及其发展状况

紫外光固化涂料具有高效率、低消耗的特点,是一种新型环保节能型涂料。文章综述了紫外光固化涂料的特点、固化原理、主要组成包括齐聚物、活性稀释剂、光引发剂和助剂以及紫外光固化涂料的发展前景。     

基于亚光涂料的消光技术研究进展

亚光涂料具有光泽柔和的特点,能够提供舒适温馨的氛围,降低视觉疲劳,在建筑、车饰、医疗、交通等日常生活领域具有广阔的应用空间。目前亚光涂料主要通过加入消光剂和消光树脂来实现消光。本文综述了近年来消光剂和消光树脂在各类亚光涂料中的研究进展,特别介绍了改性二氧化硅消光剂和新型消光树脂在紫外光固化涂料中的进展情况,总结了我国在消光剂和消光树脂研究中的不足之处,指出了目前消光剂和消光树脂在亚光涂料应用中存在的主要问题,并展望了其应用前景和发展趋势。     

双马来酰亚胺树脂固化过程的红外光谱分析

利用傅里叶变换红外光谱法研究双马来酰亚胺树脂固化过程中的结构变化,认为双马来酰亚胺树脂固化反应分两进行,第一步是低温下的“ENE”反应,第二步是高温下的Diels-Alder反应,树脂第一步固化反应达到一定程度后,要进一步提高固化反应程度,必须提高温度才能使第二步固化反应发生。     

超支化树脂改性UV固化粉末涂料

本文将超支化树脂(HBP)与UV固化粉末涂料相结合,研究了超支化树脂对该涂料的树脂体系玻璃化温度、流变性能及涂膜各项物理性能的影响.结果表明:添加改性与未改性超支化树脂都能降低树脂体系的玻璃化温度,改性超支化树脂不影响体系的流变性能及涂膜性能,未改性超支化树脂可以降低体系粘度但使涂膜性能变差.     

辐射固化材料的现状和某些进展

介绍近年来UV/EB固化材料的发展进展,其中包括北美、欧洲、日本的发展概况和重大的新进展:(1)稀释单体和预聚体;(2)水基UV/EB固化;(3)阳离子光固化;(4)辐射固化粉末涂料;(5)复合固化体系;(6)UV固化纳米涂料;(7)光引发剂;(8)计算机直接制版.     

UV固化涂料在修复底漆中的应用

综述了UV固化技术和UV固化涂料等相关领域的发展状况,以BASF公司在2005年获得美国总统绿色化学奖的产品为实例,通过与传统产品的对比全面地介绍了绿色环保底漆的组成成分、固化机理和影响因素,最后对UV固化涂料在绿色环保车漆领域的应用展望做一总结。     

电子束固化树脂基复合材料进展

综述了电子束固化树脂基复合材料的树脂基体、电子束固化工艺的优越性、吵固化复合材料在国内外的发展状况以不固化复合材料中存在的一些待解决的问题。     

粉末涂料的改性研究

简述了粉末涂料改性的研究进展。重点介绍了环氧树脂在丙烯酸树脂 /环氧树脂混合型粉末涂料中的作用 ;无封端剂的聚氨酯粉末涂料交联和 1 ,4-环己烷二甲醇酯二苯甲酸酯作为粉末涂料改性剂的研究进展     

Investigations of the effect of viscosity of resin on the diffusion of pyrene in silicone polymer coatings using steady state fluorescence technique

The diffusion phenomenon of pyrene in silicone coatings prepared from various commercial silicone resins with different viscosities was investigated using steady state excimer fluorescence technique. The amount of pyrene lost from the coatings by diffusion at different temperatures ranging from 25 to 70 °C was estimated from the excimer emission intensity. The diffusion coefficients (D) and activation energy of diffusion of pyrene in silicone coatings were determined. It was found that the kinetic parameters of pyrene were comparable in all the four silicone coatings and independent of the viscosity of the resin. The D values were lower than those expected for pyrene in PDMS resins in the corresponding viscosity range. This may be attributed to restricted mobility of pyrene due to cross-linking of polymer chains in the cured silicone coatings.     

Modified coatings based on chlorosulfonated polyethylene

The results of investigations of the effect of solid petroleum resins, epoxide oligomers, and type of curing agent upon the properties of varnishes and coatings based on chlorosulfonated polyethylene are given. It is shown that the use of cycloaliphatic isocyanates and amine-containing organic silicon compounds allows one to obtain coatings with a complex of high processing and operating characteristics.     

Fast-curing epoxyurethane coatings

Fundamental aspects of synthesis and the properties of fast-curing epoxyurethane polymeric coatings based on ED-20 (Russia), Epikote 862 (Great Britain), and Der 331 (USA) epoxy resins, industrially manufactured domestic polyesters PDA 800 and PS, polyisocyanate, and Lapramol 294 were studied. It is shown that the foreign epoxy resins can be replaced with ED-20 resin and this resin can be used to obtain high-quality fast-curing epoxyurethane polymeric coatings that can be used to protect metal surfaces.     

Atomic layer deposition of conformal inorganic nanoscale coatings on three-dimensional natural fiber systems: effect of surface topology on film growth characteristics

Atomic-scale material deposition is utilized to achieve uniform coverage and modification of the surface properties of natural fiber and woven fabric materials, where irregular nanoscale features are embedded in a macroscale interpenetrating fiber network. The complex surface topology of the woven fabric results in significantly different film-growth thickness per ALD cycle as compared to planar surfaces coated using the same process conditions, likely due to reactant adsorption within the fiber starting material, as well as impeded reactant transport out of the fabric system during the purge cycle. Cotton textiles modified with conformal nanoscale Al2O3 are found to show extreme hydrophobic effects, distinctly different from planar surfaces that receive the same coatings. The results highlight key concerns for achieving controlled conformal coatings on complex surfaces and open the possibility for new textile finishing approaches to create novel fabric-based materials with specialized function and performance.     

Complexation of an acrylic resin by tertiary amines: synthesis and characterisation of new binders for antifouling paints

Antifouling coatings are the most reliable way to prevent biofouling of immersed surfaces. As concerning the high toxicity of organotin paints, the tendency is the development of coatings, which do not present environmental risks. In this work, we prepare binders from modification of acrylic copolymers containing free carboxylic acid groups. Biocides chosen are tertiary ammonium salts; alkyl chain substituents with different length are considered. The chemical modifications of resins are carried out via a single step reaction. Modification extents are monitored through proton nuclear magnetic resonance and thermogravimetric analysis and the modified resins are characterised by Fourier transform infrared spectroscopy. The glass transition temperature of the acrylate systems is assessed by dynamical mechanical analysis (pin point method) and compared with data obtained by differential scanning calorimetry. The erosion and antifouling properties of the binders are followed during an exposure to marine environment by a visual observation.     

高分子阻尼涂料的研究进展

介绍了高分子阻尼涂料的阻尼机理和组成,以及阻尼涂料的高分子改性方法,包括共聚、共混和互穿网络(IPN)等以及国内外发展现状。重点介绍了目前通用的树脂基料和填料,详细介绍了互穿网络改性方法和乳液聚合物互穿网络,以及环境友好水性阻尼涂料的研究现状和发展。     

Influence of allyl ethers in coating resins

The effects of allyl ethers in coating resins have been studied in relations to different systems. The details that have been investigated are: the reactions between allyl ethers-styrene-cobalt salt in air, the influence of cobalt salt on oxidized allyl ethers, and the interaction between allyl ethers and maleic esters with respect to copolymerization. The curing rates of allyl functional oligomers as coatings have also been studied. The results are summarized together with the results from a previous article by the same authors to give an overall view of the curing mechanism in allyl ether functional unsaturated polyester resins dissolved in styrene.     

Imide-containing oligomers as alkyd resin modifiers

Organo-soluble imide-containing oligomers (oligomaleimidohydroxyphenylene and oligoimide derived from benzalazine and m-phenylenebismaleimide) were examined as modifiers for melamine-alkyd and alkyd resins. Addition of these modifiers enhances the hardness, impact strength, and corrosion resistance of the coatings and their adhesion to metal surfaces, i.e., improves the service properties of the coatings.     

Large oriented arrays and continuous films of TiO(2)-based nanotubes

We report for the first time a one-step, templateless method to directly prepare large arrays of oriented TiO2-based nanotubes and continuous films. These titania nanostructures can also be easily prepared as conformal coatings on a substrate. The nanostructured films were formed on a Ti substrate seeded with TiO2 nanoparticles. SEM and TEM results suggested that a folding mechanism of sheetlike structures was involved in the formation of the nanotubes. The oriented arrays of TiO2 nanotubes, continuous films, and coatings are expected to have potentials for applications in catalysis, filtration, sensing, photovoltaic cells, and high surface area electrodes.