几种新型UV固化涂料的研究进展

介绍了有机溶剂木质素基环氧丙烯酸酯Olbea涂料、PET膜用UV固化涂料、UV固化超支化PUA/SiO_2杂化涂料、木器用紫外光固化涂料、UV固化环氧/SiO_2杂化涂料、疏水耐污多官能度有机硅UV固化涂料、长臂多官能度大分子UV固化涂料、紫外光固化稀土高分子复合涂料、纳米氧化锡锑/UV固化水性聚氨酯隔热涂料、侧胺基水性聚氨酯UV固化阴极电泳涂料、全氟聚醚改性UV固化丙烯酸酯涂料和UV-潮气固化杂化涂料等几种新型UV固化涂料的研究进展。     

光敏树脂及其紫外光固化涂料发展新动向

按紫外光固化涂料形态分类,并着重从光敏树脂方面综述了近年来紫外光固化涂料及其光敏研究及开发的新动向。在开发油性紫外光固化涂料新品种、提高其综合性能、拓宽应用领域的同时,研究开发水性紫外光固化涂料、紫外光固化粉沫涂料是目前紫外光固化涂料的重要发展趋向:在完善线形光敏齐聚物的同时,研究水溶性光敏齐聚物、树枝形和超支化结构聚合物体系又成为紫外光固化涂料用树脂研究的新热点。     

水性紫外光固化涂料的研究进展

介绍了水性紫外光固化涂料(UVCC)的几种制备方法,阐述了水性UVCC在建筑涂料、包装材料、汽车行业等各领域的应用,并对水性UVCC近年来的发展趋势做了总结,认为未来水性紫外光固化技术将朝着制备新型的齐聚物、开发新型的活性稀释剂、研究新型固化体系发展.     

紫外光固化环氧豆油丙烯酸酯涂料固化膜性能的研究

本文简述了环氧豆油丙烯酸酯齐聚物的优点和缺点，介绍了改善此外光固化环氧豆油丙烯酸酯涂料固化膜性能的方法，实验结果表明：在紫外光固化环氧豆油丙烯酸酯涂料中添加一定量的双酚A型EA或TMPTA均能提高其固化膜的硬度和耐磨性，改善固化膜的表面状态。     

紫外光固化水性聚氨酯丙烯酸酯的制备及其性能分析

由于传统的溶剂型涂料存在一定的有毒有害物质,为此必须要积极探索溶剂型涂料的替代品通过利用低含量溶剂化、水性化、无溶剂化、粉末化、光固化涂料的研究与发展,不仅能够继承传统的紫外光固化技术和水性技术,而且还能够实现绿色健康环保无污染。紫外光固化技术和水性技术的结合也能够保证材料的防火性能和安全性能在涂料行业得到了快速的发展。本文通过对紫外光固化水性聚氨酯丙烯酸酯的制备,以及性能进行深入的研究,并且异氟尔酮二异氰酸酯为应对聚乙二醇为软段,同时以氢甲基丙酸作为亲水扩链剂加入到烃基之中,利用甲基丙烯酸-β-羟乙酯通过封端引入碳碳双键作为双固化的功能团,实现了多步骤聚反应制备紫外光固化水性聚氨脂、丙烯酸酯。     

紫外光固化木器涂料性能研究——齐聚物对涂膜性能的影响

研究了环氧丙烯酸酯和聚氨酯丙烯酸酯系列齐聚物对紫外光固化木器涂料的性能影响。结果表明，齐聚物的结构和配比对涂膜的硬度、附着力、耐磨耗性等有显著影响，环氧丙烯酸酯和聚氨酯丙烯酸酯用量比例为30～40：70～60时，涂膜综合性能最佳。     

环保型木器涂料

介绍水性和紫外光固化两类环保型木器涂料及其研究进展。水性木器涂料主要为丙烯酸酯与聚氨酯两大类，其研究进展集中表现为乳液改性，包括自交联、共混共聚、微乳液等；紫外光固化木器涂料包括其光固化树脂、活性稀释剂和光引发剂的功能及进展；指出研究新型乳液以提高水性木器涂料涂膜的表面性能，开发新型原材料以降低紫外光固化木器涂料的成本、扩大适应范围将成为今后环保型木器涂料的研究重点。     

紫外光固化涂料的发展状况

紫外光固化涂料是一种环保节能型涂料。概述了紫外光固化涂料的特点、固化原理及组成，并介绍了紫外光固化涂料的组成物-齐聚物、活性稀释剂、光引发剂、助剂的发展状况及紫外光固化涂料的应用前景。     

国内紫外光固化涂料的发展及应用

紫外光固化涂料是一种节能和环境友好型涂料,本文首先介绍了紫外光固化涂料的特点、固化机理、组成紫外光固化涂料的各种组分及其作用,然后对紫外光固化涂料的发展现状与应用领域进行了详述,最后指出,未来紫外光固化涂料的研究和发展应朝水性化和粉末化方向发展。     

紫外光固化聚氨酯–丙烯酸酯涂料研究进展

从紫外光固化聚氨酯–丙烯酸酯(UV–PUA)涂料的固化原理着手,重点介绍了这种涂料近年来的一些发展状况。综述了几种新型紫外光固化聚氨酯–丙烯酸酯涂料——水分散型、双重固化型和改性型的研究进展,改性型包括有机硅/有机氟改性、纳米改性和超支化聚合改性等。对未来紫外光固化聚氨酯–丙烯酸酯涂料的研发方向提出了几点建议。     

UV固化丙烯海松酸聚氨酯丙烯酸酯的合成及应用

以2,4-甲苯二异氰酸酯(TDI)、丙烯海松酸二甘醇聚酯二元醇和丙烯酸羟丙酯(HPA)为主要原料合成了可紫外光固化的涂料用丙烯海松酸聚氨酯丙烯酸酯(APAPUA)低聚物。对产物进行了红外表征,并考察了其光固化行为。测试了APAPUA固化膜的硬度、柔韧性及其他力学性能,同时考察了其热稳定性。结果表明,该低聚物固化膜铅笔硬度达到4H,附着力1级,耐冲击性55 cm,初始分解温度245℃,具有固化速度快,力学性能及耐热性优良等特点,可以作为价格低廉的耐热性低聚物应用于光固化涂料。     

Epoxy acrylate UV/PU dual‐cured wood coatings

For improving the finishing performances of complicated three‐dimensional coated wood products (e.g., furniture) with some shadow zones in the absence of ultraviolet (UV) light, resulting in incomplete curing of UV coatings, the aim of this study was to investigate the characteristics and effects of curing process on the properties of epoxy acrylate UV/PU dual‐cured resin for wood coatings when compared with traditional UV and polyurethane (PU) coatings. The epoxy acrylate oligomer was synthesized for providing a double bond of acryloyl group and a secondary hydroxyl group. The UV/PU dual‐cured coating was formulated with epoxy acrylate resin/tripropylene glycol diacrylate (TPGDA) monomer by the weight ratio of 80/20, 3% dosage of benzil dimethyl ketal as a photoinitiator, and the NCO/OH mole ratio of 1.0. The aromatic polymeric diphenylmethane diisocyanate was used as a hardener. The films of the dual‐cured coating, obtained from UV‐cured or room temperature‐cured process, showed an excellent tensile strength, elongation at break, impact resistance, and lightfastness when compared with traditional UV and PU coatings; especially, the adhesion of UV/PU dual‐cured coating by UV‐cured process was better than that of traditional UV coating. It can therefore be concluded that the epoxy acrylate oligomer‐based dual‐cured coating could readily be used for complicated wood products finishing. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

Curing and combustion properties of a PU‐coating system with UV‐reactive phosphazene

A UV‐curable polyurethane (PU)‐coating system containing phosphorus is formulated by the combination of photoinitiator, PU acrylate oligomer, and UV‐reactive phosphazene monomer. PU acrylate oligomer is prepared by the addition of 2‐hydroxyethylmethacrylate (HEMA) to NCO‐terminated PU prepolymer. UV‐reactive phosphazene monomer is derived from the HEMA substitution reaction to hexachlorocyclotriphosphazene (NPCl₂)₃. The curing reaction of this PU‐coating system is carried out by UV irradiation. The resultant UV‐cured PU‐coated films demonstrated better performance properties than those of original UV‐cured PU acrylate (UV‐PU) without UV‐reactive phosphazene monomer. Furthermore, their thermal properties are investigated by a thermogravimetric analyzer and a dynamic mechanical thermal analyzer, respectively. The combustion behaviors of these UV‐cured PU‐coated films are evaluated by the measurements of a limiting oxygen index and a cone calorimeter. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1980–1991, 2002     

聚氨酯丙烯酸酯紫外光固化三聚氰胺板材底漆的研制

合成了一种聚氨酯丙烯酸酯和一种附着力促进剂,通过与其它树脂、单体、引发剂的配合,配制三聚氰胺板材UV固化底漆,测试了涂膜的附着力、耐温性、耐水性,掌握了配方中树脂与单体的最佳比例、底漆的最佳光照时间、附着力促进剂的最佳用量、选出了较好的复配树脂,最终得到了性能优异的三聚氰胺板材底漆配方。     

UV固化光纤带涂料的研制

用环氧丙烯酸酯与聚氨酯丙烯酸酯共混聚合的方法制备出性能优良的UV固化光纤带涂料。讨论了齐聚物种类,齐聚物共混配比,不同官能度单体配比,齐聚物与单体的配比以及光引发剂及其含量对UV固化光纤带涂料的性能如剥离性、拉伸强度、延伸率和柔韧性的影响。     

Preparation,characterization of UV‐Curable Waterborne Polyurethane‐Acrylate and the application in metal iron surface protection

Hydroxyethyl methyl acrylate (HEMA) capped waterborne polyurethane‐acrylate (WPUA) oligomer was firstly prepared from isophorone diisocyanate (IPDI), polyether polyol (NJ‐220), dimethylolbutanoic acid (DMBA), HEMA via in‐situ and anionic self‐emulsifying method. Ultraviolet (UV) curable WPUA coating was obtained from HEMA‐capped oligomer, butyl acrylate (BA) and multifunctional acrylates (TPGDA) as reactive diluents, and Darocur 1173 as photoinitiator. The physical properties of WPUA oligomers, such as particle size, apparent viscosity, and surface tension were investigated. Some mechanical properties of UV‐WPUA films, such as contact angles, thermal properties, and solvent (water, HCl, NaOH, NaCl, and ethanol) resistance of UV‐WPUA coating films were measured. The surface morphologies were measured by scanning electron microscope and atomic force microscope. The surface free energy of the UV‐cured film was calculated from contact angle measurements using the Lewis acid–base three liquids method. The specific UV‐WPUA coating was selected to protect the iron materials that observed the effect of the protection. The results indicate that the prepared UV‐WPUA coating has excellent protective behavior to metal iron materials and may offer some contributions to protect iron cultural relics. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 3142–3152, 2013     

A novel UV‐curable epoxy acrylate resin containing arylene ether sulfone linkages: Preparation,characterization, and properties

UV‐curing processes are used in industrial applications because of their advantages such as high‐speed applications and solvent‐free formulations at ambient temperature. UV‐curable epoxy acrylate resins containing arylene ether sulfone linkages (EAAES) were synthesized through the condensation of bis(4‐chlorophenyl)sulphone and bisphenol‐A, followed by end‐caping of epichlorohydrin and subsequently acrylic acid. UV‐cured coatings were formulated with epoxy acrylates, reactive diluents such as pentaerythritol tri‐acrylate and pentaerythritol dia‐crylate and photoinitiator. Fourier transfer infrared, ¹H NMR, and thermal gravimetrical analysis were employed to investigate the structures and thermal properties of the EAs films. The introduction of EAAES into epoxy acrylate substantially improves its thermal properties and thermo‐oxidative stability at high temperatures. In addition, the acrylate containing arylene ether sulfone linkages can also improve pencil hardness and chemical and solvent resistance of the epoxy acrylate. The obtained UV‐curable epoxy acrylate containing arylene ether sulfone linkages is promising as oligomer for UV‐curable coatings, inks, and adhesives in some high‐tech regions. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 41067.     

紫外光固化敷形涂布胶的制备与性能

用环氧丙烯酸树脂30-50份（质量,下同）,丙烯酸酯类单体40～65份,光引发剂2～5份,偶联剂及助剂0.1～3份,研制出可紫外光固化的敷形涂布胶,并测试了性能。结果表明,该胶具有较好的附着力,优异的耐湿热性和较快的表干速度,可满足印刷线路板的涂敷要求。     

Ultraviolet‐curing behavior of an epoxy acrylate resin system

Ultraviolet (UV)‐curing behavior of an epoxy acrylate resin system comprising an epoxy acrylate oligomer, a reactive diluent, and a photoinitiator was investigated by Fourier transform infrared (FTIR) spectroscopy. The conversion changes of the resin system containing 20 phr of 1,6‐hexanediol diacrylate as a reactive diluent and 2‐hydroxy‐2‐methyl‐1‐phenyl‐propan‐1‐one as a photoinitiator were measured under different UV‐curing conditions. The fractional conversion was calculated from the area of the absorption peak for the vinyl group vibration occurring at 810 cm^?1. The effects of photoinitiator concentration, total UV dosage, one‐step or stepwise UV irradiation, UV intensity, atmosphere, and temperature on the curing behavior of the resin system were investigated. The conversion of the resin system increased rapidly at the initial stage of the UV‐curing process but increased very slowly after that. The final conversion of the resin system was mainly affected by total UV dosage. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 1180–1185, 2005