含氟聚合物及其涂料

在光学底材上作防反射层用的低折光指数涂料组合物的制备方法；防反射聚合物膜用的带有烯属硅烷的氟聚合物涂料组合物；氟聚合物纳米粒子涂料组合物及其制备的涂料组合物和工作；用于防反射聚合物膜的低折射指数氟聚合物涂料组合物；可形成良好涂层并具耐久性的低折光指数氟聚合物组合物；[编者按]     

含氟聚合物及其涂料

<正>201412001用于滚筒外层的粘性低、润滑性好的含氟聚合物组合物及其材料:JP2013-235 103[日本专利公开]/日本:Matsuyoshi,Hiroaki等(Osaka Gas Co.,Ltd.).-2013.11.21.-9页.-2012/106 817(2012.05.08);IPC G03G15/00题述组合物含有(A)90%~99%含氟聚合物和(B)1%~10%平均粒径为0.1~5μm的无机粒子。题述材料含有上述组合物制得的涂膜。题述滚筒适用于造纸、     

纳米CaCO3在涂料中的应用

介绍了纳米CaCO3结构，测定了加入纳米CaCO3后涂料及其涂膜的性能的变化。揭示了纳米CaCO3对乳胶涂料性能的影响。     

元素有机聚合物及其涂料

易于附着的处理度、涂料及形成涂膜的方法；含C4-燕子桦硅烧的组合物、涂料和对陶瓷底材的氟化学应用；脱模涂料用有机硅组合物；产生低VOC的硅氧烧涂料组合物；液体有机硅橡胶涂料组合物和采用了该组合物的气囊；[编者按]     

含氟聚合物及其涂料

200903006 快速干燥的含氟聚合物分散体涂料组合物;200903007 热稳定的氟聚合物组合物;200903008 涂料组合物及其涂膜的形成     

纳米粒子在聚合物增强增韧中的应用

针对弹性体增韧塑料的状况，介绍了刚性粒子塑料的优点，对纳米粒子的特性，制备方法及表面处理方法作了详细的论述，并报道了纳米粒子与聚合物的物理化学作用，微裂纹化增韧机理，基体层厚度对增韧效果的影响，以及纳米粒子在聚合物增强增韧中的应用情况。     

纳米粒子及其改性涂料

本文叙述了纳米粒子的基本特性、表面改性技术、纳米粒子改性涂料的制备。论述了纳米粒子在抗菌防污、随角异色涂料、紫外线屏蔽涂料、吸波隐身涂料以及提高普通涂料性能等方面的应用。分析了纳米粒子及改性涂料的应用现状和发展趋势。     

元素有机聚合物及其涂料

包膜粒子及含该粒子的涂料组合物；装饰金属表面用防指印疏水不含氟的保护涂料；形成低介电常数二氧化硅涂层用的组合物；二氧化硅气凝胶涂层及涂覆产品；含酸富能有机硅氧烷多元醇的硬涂层组合物     

纳米复合涂料

题述涂料组合物含有基料和包覆的纳米粒子。其中基料由40％~60％的氨基甲酸酯预聚物和40％~60％的亚甲基对苯二异氰酸酯聚合物组成。该组合物能形成弹性涂层,具有防腐性、耐水性、抗氧化性、耐酸性、耐盐性及导热性。     

含氟聚合物及其涂料

0504015 氟聚合物涂料的技术和特性[刊,日]/Ito, Hiroshi//JETI.-2004,52(14).-80-84 一篇有关氟聚合物涂料(尤其是聚偏二氟乙烯和氟乙烯-乙烯基醚共聚物)的耐候性和防污性的述评。0504016 涂料用含化学键连接的全氟烷基树脂: DE10 332 197[德国专利]/德国:Synthopol Chemie Dr. Rer.Pol.Koch GmbH & Co Kg(Appelhans,Dietmar 等).-2005.2.10.-8页.-10 332 197(2003.7.15);IPC C08F8/24     

Acrylic-fluoropolymer mixtures and their use in coatings

Fluoropolymer coatings, particularly those based on polyvinylidene fluoride (PVDF) resins, have a 35 year history of outstanding performance in outdoor applications. However, the chemical inertness of PVDF presents challenges to the paint formulator in that it prevents adhesion to substrates and makes it difficult to disperse pigments. To overcome these difficulties, an acrylic modifier resin is usually added to the PVDF resin. The acrylic modifier is traditionally physically blended with the PVDF resin to improve coating adhesion and enhance pigment dispersion. The physical blending results in a PVDF/acrylic mixture on a macro-molecular scale. ATOFINA Chemicals, Inc. has developed a novel approach to mix the fluoropolymer and acrylic on micro-molecular scale. Because of this intimate mixing, and the wide latitude of the acrylic and fluoropolymer monomers that can be utilized, a wide range of unique properties can be achieved in solvent-base dispersion coatings, and water-borne coatings. The unique properties of the solvent-base and water-borne coatings are discussed in this paper.     

Water-borne polyurethane dispersions and their use in functional coatings

Conclusions  There were high hopes and many predictions in the 1970s that the coatings industry would rapidly move to water-borne coatings. This did not occur in this very traditional and conservative industry. However, environmental legislation is now ensuring that more and more coatings systems are moving towards water-borne or high solids. This should not be viewed as a threat by the resin suppliers, but as a great opportunity. Small to medium size resin suppliers who are willing to tailor water-borne resin systems such as PUDs and hybrids to individual customer demands, will have an assured future. There is a very big market for functional coatings and for the resin systems designed for them.     

Emulsifiers derived from linseed oil and their potential use in coatings

In the development of a stable linseed oil emulsion paint, a series of emulsifiers were prepared from linseed, oil and its fatty acids and alcohols: (a) linseed monoglycerides, (b) mono-and dilinseed fatty sorbitan esters and a mixed ester obtained by the transesterification of linseed oil with sorbitol, (c) polyoxyethylene ether adducts formed by reacting, ethylene oxide with these sorbitan esters, and (d) linseed polyoxyethylene ether made by ethoxylation of linseed alcohols. Another series of surfactants was prepared by esterifying a polyoxyethylene ether of sorbitol with various amounts of linseed fatty acids. Conditions of preparation and pertinent physical, and chemical properties of the emulsifiers are given. Some of these emulsifiers demonstrated filmforming properties. Combinations were formulated into linseed oil emulsion paints with and without zinc oxide. Paints containing zinc oxide have been relatively stable in viscosity for about 2 yr.     

Photo‐curable highly water‐repellent nanocomposite coatings

Modification and use of natural products have gained a lot of interest in recent years due to their environmental friendliness and their availability from different sources. In this study, (castor oil)‐based photo‐curable highly hydrophobic coatings were prepared and characterized. Castor oil was first modified with 3‐isocyanatopropyltriethoxysilane and then hydrolyzed prior to the coating preparation. The resulting precursor was mixed with norbornyl acrylate and hexanediol diacrylate, and highly roughened hydrophobic coatings were prepared with the aid of fluorinated/nonfluorinated alkoxysilane coupling agents and hydrophobic fumed nanosilica particles. The coatings were applied on borofloat glass. The addition of fluorine and nanosilica showed a significant impact on the properties of the coatings. As the fluorine and nanosilica contents were increased in the formulations, flame retardancy and the contact angle values of the coatings increased. The surface roughness of the coatings increased with the addition of hydrophobic fumed nanosilica particles. Also, the relation between the surface energy and the contact angle values of the coatings was investigated. J. VINYL ADDIT. TECHNOL., 19:31–38, 2013. © 2013 Society of Plastics Engineers     

单组分粉末聚合物改性的非膨胀型防火涂料及其应用现状

主要就目前国内外的以可再分散乳胶粉为改性剂的单组分非膨胀型防火涂料(砂浆)的应用和种类特点进行了概述,并对钢结构、隧道和石化炼油厂的应用进行较为详细的介绍。此外,还对乳胶粉对隧道防火涂料的粘结性进行了初步研究。     

Polymeric bound porphyrines and their precursors

Summary The solid state synthesis of a monosubstituted phthalocyanine 6 is described. 4-(4-Hydroxyphenoxy)-1,2-benzenedicarbonitrile is polymer bound to a chloromethylated macroreticular polystyrene, yielding polymer 3. Reaction of 3 with 4-phenoxy-1,2-benzenedicarbonitrile in the presence of zinc salt results in the formation of covalently bound polymeric phthalocyanine 5. 6 is obtained by cleavage with HBr/acetic acid.Part 1: Ref. 1     

FP-based formulations as protective coatings in oil/gas pipelines

Corrosion in the interior of pipelines is a major and costly problem encountered in the oil and gas industry. In this context, a fluoropolymer and a hybrid epoxy/fluoropolymer resin were studied for their potential use to prevent corrosion. The fluoropolymer coating required the use of a primer layer. The coatings were formulated to maintain the excellent abrasion and chemical resistance properties of fluoropolymers, while enhancing adhesion to the substrates. Standard corrosion experiments, including chemical immersion, adhesion, and salt fog tests, were used for preliminary evaluation. Coatings were characterized using scanning electron microscopy and energy-dispersive X-ray spectroscopy before and after exposure to corrosive environments. Electrochemical properties were studied with electrochemical impedance spectroscopy, by monitoring the resistance and capacitance of the coatings over time. The results obtained in this work will fill a knowledge gap and will aid in the selection of the proper composition and thickness of anticorrosion coatings for use in a highly corrosive media.     

Facile fabrication of water repellent coatings from vinyl functionalized SiO2 spheres

Water repellent SiO₂ particulate coatings were prepared by a one-step introduction of vinyl groups on the coating surface. Rough surface structure and low surface energy could be directly obtained. Vinyl functionalized SiO₂ (vinyl-SiO₂) spheres with average diameter of 500 nm were first synthesized by a sol–gel method in aqueous solution using vinyltriethoxysilane as the precursor. The multilayer SiO₂ coating fabricated by dip-coating method was highly hydrophobic with a water contact angle of 145.7° ± 2.3°. The superhydrophobic SiO₂ coating with a water contact angle up to 158° ± 1.7° was prepared by spraying an alcohol mixture suspension of the vinyl-SiO₂ spheres on the glass substrate. In addition, the superhydrophobic SiO₂ coating demonstrated good stability under the acidic condition. However, it lost its hydrophobicity above 200°C because of the oxidation and degradation of vinyl groups.