水性聚氨酯皮革涂饰剂应用进展

介绍了水性聚氨酯皮革涂饰剂在皮革加工业中的应用机理、制备工艺和最近研究进展，重点介绍了水性聚氨酯皮革光亮剂在应用中的重要性、机理、工艺以及进展，对水性聚氨酯皮革涂饰剂的未来发展做了展望。     

丙烯酸酯改性水性聚氨酯皮革涂饰剂研究进展

综述了近年来丙烯酸酯改性水性聚氨酯(PUA)皮革涂饰剂的改性方法,包括共混交联法、溶液聚合法、种子乳液聚合法和互穿网络聚合法。讨论了PUA复合乳液及漆膜结构与性能的关系,提出了水性皮革涂饰剂的发展趋势。     

水性聚氨酯涂料的改性技术与应用进展

简述了国内外水性聚氨酯的发展历程,重点介绍了水性聚氨酯涂料在环氧树脂改性、有机硅改性、有机氟改性、丙烯酸酯改性及纳米材料改性等不同改性方法中的研究进展,概述了其在木器涂料、皮革涂饰剂、汽车涂料及纸张涂料等领域的应用,并讨论了水性聚氨酯涂料的发展方向。     

首届水性聚氨酯培训班

目前众多的生产厂家及科研机构均在生产与研究水性聚氨酯,相应的水性聚氨酯产品种类也较多,但如何根据最终产品量身定做水性聚氯酯及如何将水性聚氨酯更好地应用到涂料、胶粘剂、皮革涂饰剂等产品中,则仍然是束缚水性PU大量推广的瓶颈,为此中国聚氨酯工业协会水性聚氯酯专业委员会拟就水性聚氨酯技术进展、     

羟基硅油共聚改性水性聚氨酯的制备、表征与性能

引言 水性聚氨酯是一类重要的皮革涂饰剂,它耐磨、柔韧性好,可增加皮革的美观和耐用性.水性聚氨酯链上含有亲水基团,因此形成的涂膜耐水性差,常需要改性.     

2010年水性聚氯酯行业年会征稿启事

水性技术由于其环保性而为涂料、胶粘剂、皮革涂饰剂等行业所热衷,推进水性技术进步,促进行业发展正是我们水性年会的宗旨,为此中国聚氨酯工业协会水性聚氨酯专委会联合全国涂料工业信息中心和《涂料行业》杂志社,     

2010年水性聚氨酯行业年会征稿启事

水性技术由于其环保性而为涂料、胶粘剂、皮革涂饰剂等行业所热衷,推进水性技术进步,促进行业发展正是我们水性年会的宗旨,为此中国聚氨酯工业协会水性聚氨酯专委会联合全国涂料工业信息中心和《涂料工业》杂志社,     

有机硅改性水性聚氨酯皮革涂饰剂的合成和应用

通过聚己二酸丁二醇酯二醇(PBA)、异佛尔酮二异氰酸酯(IPDI)、聚醚改性聚硅氧烷(PO-PDMS)制备了有机硅改性水性聚氨酯树脂,并用以制备了水性皮革涂饰剂。研究考察了预聚体NCO/OH比值以及二羟基甲酸(DMPA)含量对水性聚氨酯分散液状态的影响,及有机硅含量对涂饰剂的模量、耐水性、耐热粘着性以及手感的影响。研究结果表明,预聚体NCO/OH比值在1.8,DMPA含量在3%~4%(质量分数,下同)时可以得到状态稳定的半透明带蓝光分散液。在水性聚氨酯中引入2%~10%的有机硅链段可以有效的改善皮革涂饰剂的耐水性、耐热粘着性以及手感。     

关注皮革·胶粘剂领域,2015水性聚氨酯培训班欢迎您!

<正>为加强水性聚氨酯人才培养,中国聚氨酯工业协会水性聚氨酯专委会联合《涂料工业》杂志将于2015年5月10-14日在厦门举办第5届水性聚氨酯培训班。本届培训班将以胶粘剂和皮革(及涂饰剂)为主题,约请行业资深教授和专家授课,为胶粘剂和皮革行业的技术人员提供交流学习的机会。     

水性聚氨酯的合成、改性及应用研究

简述了水性聚氨酯的合成,以及水性聚氨酯涂料在丙烯酸酯改性、环氧树脂改性、有机硅改性、有机氟改性等不同改性方法中的研究进展,还概述了其在涂料、胶黏剂、皮革涂饰剂等领域的应用。     

Recent developments in aqueous two-component polyurethane (2K-PUR) coatings

In the field of environmentally friendly coatings waterborne two-component polyurethane systems represent a new technology, combining the good film properties of solventborne two-component polyurethane coatings with the low VOC values of waterborne technology. Recently, waterborne two-component polyurethane coatings have matured to the point that they offer realistic alternatives to the corresponding solventborne systems in various application fields.

For industrial finishing and automotive refinish we are introducing rapid drying coatings exhibiting well-balanced range of properties at low VOC level. We developed high-performance OEM-clearcoats which combine good chemical resistance with excellent mar resistance. Waterborne soft-feel lacquers are already well established in the market.

Development of a new generation of water dispersible polyisocyanates as well as improvements in application technology have contributed substantially to this. Additionally, progress in understanding the fundamental principles of aqueous two-component-PUR systems like side reactions during pot life and film formation or the cause of blistering supported our developments.

We expect that waterborne two-component polyurethane coatings will gain a significant share of the market where high-performance coatings are demanded.     

Waterborne Polyurethane-Acrylate Containing Different Polyether Polyols: Preparation and Properties

The waterborne polyurethane–acrylate (PUA) was prepared based on isophorone diisocyanate, polyether polyol, dimethylol propionic acid, hydroxyethyl methyl acrylate, butyl acrylate (BA) and styrene (St). Fourier transform infrared spectrometry (FT-IR), Ultraviolet-visible spectrophotometry (UV-Vis) and Differential scanning calorimetry (DSC) were employed to investigate the structures, optical transparency and thermal properties. Some physical properties of the aqueous dispersions such as viscosity, particle size and surface tension were measured. Some mechanical performances and solvent resistance of films were investigated. When the ratio of the BA/St was 30/70, the films had excellent water and alkali resistances. The obtained PUA composites have great potential application such as coatings, leather finishing, adhesives, sealants, plastic coatings and wood finishes.     

水性聚氨酯胶粘剂在皮革工业中的应用

介绍了国内外皮革用水性聚氨酯胶粘剂（WPU胶）的发展状况;详细讨论了WPu胶在皮革上的应用;介绍了其应用所遇到的问题和解决方法,以及未来发展方向．     

水性防腐蚀涂料的研究现状与展望

环境友好型水性无毒防腐蚀涂料是当今防腐蚀涂料发展的主要方向。总结了水性丙烯酸涂料、水性环氧涂料、水性无机富锌涂料和水性聚氨酯涂料的特点与最新研究动向,并提出了水性防腐蚀涂料目前存在的问题及今后的技术动向。     

水性聚氨酯膨胀型阻燃涂料的研究进展

水性聚氨酯涂料若未经阻燃处理,存在引发火灾的隐患,因此水性聚氨酯的阻燃研究是水性聚氨酯功能化的重要方向之一。介绍了水性聚氨酯阻燃涂料的分类,按不同分类标准可分为共混复配型和反应型,膨胀型和非膨胀型。对水性聚氨酯阻燃涂料阻燃效应和阻燃机理进行了探讨,并重点介绍水性聚氨酯膨胀型阻燃涂料的研究现状。最后提出了现在水性聚氨酯膨胀型阻燃涂料存在的问题,并对水性聚氨酯膨胀型阻燃涂料的发展趋势进行了展望。     

Preparation,mechanical properties of waterborne polyurethane and crosslinked polyurethane‐acrylate composite

The waterborne polyurethane (PU) prepolymer was first prepared based on isophorone diisocyanate, polyether polyol (NJ‐210), dimethylol propionic acid (DMPA), and hydroxyethyl methyl acrylate via in situ method. The crosslinked waterborne polyurethane‐acrylate (PUA) dispersions were prepared with the different functional crosslinkers. The chemical structures, optical transparency, and thermal properties of PU and PUA were confirmed by Fourier transform infrared spectrometry, ultraviolet–visible spectrophotometry, and differential scanning calorimetry. Some physical properties of the aqueous dispersions such as viscosity, particle size, and surface tension were measured. Some mechanical performances and solvent resistance of PUA films were systemically investigated. The experimental results showed that the particle sizes of the crosslinked PUA aqueous dispersions were larger than the PU and increased from 57.3 to 254.4 nm. When the ratios of BA/St, BA/TPGDA, and BA/TMPTA were 70/30, PUA films exhibited excellent comprehensive mechanical properties. The tensile strength and elongation at break of the film were 2.17 MPa and 197.19%. When the ratio of BA/St was 30/70, the film had excellent water resistance and was only 6.47%. The obtained PUA composites have great potential application such as coatings, leather finishing, adhesives, sealants, plastic coatings, and wood finishes. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

A Review on Waterborne Thermosetting Polyurethane Coatings Based on Castor Oil: Synthesis,Characterization, and Application

Waterborne polyurethane coatings made from castor oil as polyol resource, replacing oil from fossil fuels are attracting lot of recognition during recent decades. In this review, castor oil and its modifications to synthesize various biobased waterborne polyurethane and their nanocomposite systems have been addressed. Various synthesis procedures for waterborne polyurethane dispersions and their applications as a coating material have been described. This review will be helpful to the green research community for selection of monomer and further development of biobased waterborne polyurethane utilizing advanced technology.     

高弹性水性聚氨酯橡胶涂料的研制

以水性丙烯酸改性聚氨酯(PUA)乳液为基料,加入功能性颜填料和助剂,制备出一种高弹性水性聚氨酯橡胶涂料。对高弹性水性聚氨酯涂料与传统橡胶涂料进行了一系列模拟涂覆橡胶管的对比试验,结果表明:高弹性水性聚氨酯涂料可以很好地满足工艺要求。