聚氨酯地坪涂料的发展现状

简介了无溶剂、水性、纳米改性等高性能环保型聚氨酯地坪涂料的技术进展和实际应用。     

水性聚氨酯地坪涂料的应用与研究进展

简述了水性聚氨酯地坪涂料的应用现状,综述了双组分水性聚氨酯地坪涂料的水性多元醇组分和多异氰酸酯组分的研究进展,指出了水性聚氨酯地坪涂料存在的问题以及今后的发展趋势。     

高性能环保型聚氨酯地坪涂料

回顾了聚氨酯地坪涂料的发展历史,重点介绍了双组分水性聚氨酯及聚天门冬氨酸酯高性能聚氨酯地坪涂料的基本原理、配方设计及其应用。同时还讲述了近年来聚氨酯地坪涂料技术的最新发展情况。     

水性双组分聚氨酯地坪涂料的研制

通过选用具有核壳结构的丙烯酸羟基乳液、水性含羟基分散树脂、亲水改性异氰酸酯固化剂,研制出一种兼具溶剂型双组分聚氨酯的高性能和水性涂料低VOC特点的水性双组分聚氨酯地坪涂料,可广泛用于户内外体育场及其他场所涂装。     

聚氨酯弹性地坪涂料

简述了聚氨酯弹性地坪涂料的制备工艺，列举了该涂料的主要技术指标及测试结果。着重讨论了环氧树脂、弹性预聚物的各组分(线型聚醚、多元醇、甲苯二异氰酸酯)和预聚物的RNCOOH的控制及配漆时，NC0/0H当量比等因素对涂料性能的影响。     

双组分水性聚氨酯地坪涂料的合成与研究

简要介绍了双组分水性聚氨酯地坪涂料的合成工艺、性能指标及相关机理。通过对有机硅氧烷单体加量、羟基含量、酸值、固化剂的选择等对涂料的相关性能研究,总结了最佳的涂料配比与工艺。     

聚氨酯地坪涂料的施工注意事项

本文通过地坪涂料分类,功能特性及应用范围等的论述,指出了聚氨酯地填平涂料的特点,最后指出了聚氨酯地坪的施工注意事项。     

地坪涂料水性化技术进展

简述了我国地坪涂料的研发现状,着重介绍了地坪涂料的两大主要品种——环氧地坪涂料和双组分聚氨酯地坪涂料的水性化技术进展。     

无溶剂聚氨酯舱室地坪涂料研制

以组合聚醚多元醇,液化4,4′-二苯基甲烷二异氰酸酯(L-MDI)和1,4-丁二醇为原料制备了船舶舱室无溶剂地坪涂料。研究了异氰酸酯指数R值(异氰酸基与羟基物质的量比值)、扩链剂、填料等因素对力学性能和阻燃性能的影响规律。结果表明:该地坪涂料具有优良的弹性、强度,可满足船舶舱室地坪使用要求。     

环保型聚氨酯地坪涂料的研制

制备了双组分无溶剂聚氨酯地坪涂料,并研究了n(-NCO):n(-OH)、颜填料、吸水剂及催化剂对产品性能的影响.检测结果表明,该产品环保性能达到GB18581-2001相关规定要求,理化性能优异,具有良好的强度、弹性和装饰效果,可自动流平,施工方便,能满足不同场所地坪铺装要求.     

环保型聚氨酯涂料的研究进展

综述了环保型聚氨酯固化剂品种、性能与应用,阐述了水性聚氨酯涂料分类、制备方法和改性研究以及聚氨酯粉末涂料和有机硅聚氨酯功能涂料的改性研究进展。讨论了聚氨酯固化剂中游离单体脱除的工艺和方法,建议采用聚合与高效分离技术相结合的方法降低聚氨酯固化剂中残留游离异氰酸酯单体含量。指出聚氨酯涂料的发展趋势为进一步完善高固体含量羟基树脂的制备技术,发展无异氰酸酯基的潮固化聚氨酯涂料,充分利用可再生的植物油制备无溶剂聚氨酯涂料。     

二液型PU水性木器涂料的开发

介绍了二液型PU水性木器涂料的研究结果。二液型PU水性木器涂料是将带有氢氧基的乳液和特殊的异氰酸酯相结合而开发设计的产品,它不但具有与溶剂型涂料相当的优良性能,而且环保。主要用途是以木地板现场涂装为重点,其次也可以作为工厂生产家具及其它木器产品涂装用面漆使用。     

Two-component water reducible polyurethane coatings

Historically, polyurethane coatings have been formulated as two-component organic solvent based systems. These polyurethane coatings provide room temperature cure characteristics as well as an excellent combination of abrasion resistance, flexibility, adhesion, chemical resistance and appearance. However, the coatings industry is under increasing pressure to reduce the environmentally undesirable emission of volatile organic compounds (VOC). One way of doing this is to replace some or all of the organic solvent with water. However, in the case of isocyanate crosslinked polyurethane coatings this is not a straightforward matter due to the fact that unmodified isocyanates are not only reactive with water, but are hydrophobic and non-dispersible.     

水性聚氨酯涂料的制备与性能研究

以甲苯-2,4-二异氰酸酯(TD I)、聚醚Ng 210和二羟甲基丙酸(DMPA)为主要原料,制得不含或含少量有机溶剂的水性聚氨酯乳液,研究了NCO/OH的摩尔比、DMPA含量等对水性聚氨酯乳液性能的影响。结果表明,当NCO∶OH(摩尔比)=2.5∶1,DMPA=5%时,乳液性能最佳。     

单组分自交联水性聚氨酯分散体涂料

:叙述了单组分自交联水性聚氨酯分散体的组成、制备及合成机理。介绍了单组分自交联水性聚氨酯分散体的配方、制备工艺及性能 ,并对影响水性聚氨酯分散体的各种组分及影响涂层性能的各种水性助剂作了探讨     

浅谈水性聚氨酯汽车内饰涂料

简要介绍了生产汽车内饰件所用塑料的应用概况及汽车内饰涂料的特性要求,分析了水性双组分聚氨酯涂料的特性、环保优势和成膜原理,讨论了水性双组分聚氨酯汽车内饰涂料软触感的形成机制。     

聚氨酯涂料研究现状及发展

聚氨酯是世界六大具有发展前途的合成材料之一,聚氨酯涂料具有良好的粘结性、耐磨擦性,光泽度高,是涂料行业中占有非常重要的位置的主要品种之一。综述了聚氨酯涂料用单体、预聚物和环保型聚氨酯涂料的研究进展,介绍了环保型聚氨酯涂料性能与应用,指出了聚氨酯涂料的发展趋势。     

软包装用无溶剂型聚氨酯复膜胶的发展概况

综述了国内外软包装用无溶剂型聚氨酯(PU)复膜胶的发展概况,并针对其面临的主要问题提出了今后的发展方向。随着人们对环保要求日趋严格,绿色环保的无溶剂型复膜胶必将在复合软包装行业中得到迅速而广泛的应用。     

Ultraviolet and thermostable non-isocyanate polyurethane coatings

Summary  Conventional monolithic polyurethanes have good mechanical properties, but they are porous, and posseses poor hydrolytic stability and insufficient permeability. The involvement of toxic components, such as isocyanates, in their production process makes this process extremely toxic and dangerous. Network non-isocyanate polyurethanes (NIPUs) are formed from the reaction between cyclocarbonate oligomers (CCOs) and primary amine oligomers (PAOs). The authors of this paper are studying new types of NIPUs based on acrylic and siloxane CCOs and dendro-polyfunctional siloxane PAOs. These investigations create the possibility to develop high-level UV-stable coatings based on acrylic -dendro-amine systems, which are curable at room temperature, and their most able siloxane-based systems that have good adhesion and mechanical properties. An advanced way of preparing thermo-stable coatings is based on ‘blocked’ non-isocyanate polyurethane.     

Synthesis and characterization of eco-friendly siloxane-semifluorinated polyurethane coatings for underwater application

Siloxane-semifluorinated polyurethane coatings were prepared for robust underwater application. Initially, acrylic polyol (FS-GPTACP)-containing fluoroalkoxysilane (1H,1H,2H,2H-Perfluorooctyltrimethoxysilane) pendant group was synthesized by the free-radical polymerization method. Different weight percentages of polydimethylsiloxane (0, 10, and 20 wt %) were added to the polyol to tune the mechanical and the surface energy of the coating. Subsequently, this polyol mixture was cured with 4, 4′-methylenebis(cyclohexyl isocyanate) (H₁₂MDI) to prepare a series of siloxane-semifluorinated polyurethane–urea hybrid coatings (APUS 0%, APUS 10%, and APUS 20%). The synthesized coating showed low surface energy, hydrophobicity with exceptional water, and alkali resistance. Moreover, the coating displayed excellent mechanical properties with low pseudobarnacle adhesion strength. The coatings also showed nontoxicity against gram-positive and gram-negative bacterial strains. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47720.