环氧聚硅氧烷重防腐涂料的研究

制备了环氧改性聚硅氧烷树脂,并以此树脂为基料,研制出一种有机无机杂化环氧聚硅氧烷涂料,并对其固化机理和防腐性能进行了研究,结果表明,这种涂料具有非常优异的防腐性能,而且VOC含量低,是一种环保型室温固化重防腐涂料。     

丙烯酸树脂及其涂料

可以填充不平整表面和形成厚膜的防腐蚀丙烯酸环氧三聚氰胺树脂热固性涂料及其涂装方法;高性能UV固化丙烯酸涂料;对底材附着性、硬度和柔性优异的丙烯酸聚合物涂料组合物;丙烯酸聚合物耐划伤光固化硬涂料及其涂覆的树脂模塑件;一种高封闭性聚丙烯酸酯分散体的制备方法     

环保半无机丙烯酸树脂型电工钢绝缘涂料的研究

系统研究了添加磷酸锌亚微米超细粉末的半无机丙烯酸树脂涂料的固化及其电工性能,综合扫描电镜、热失重、盐雾实验、硬度和附着性能的试验结果,采用添加亚微米磷酸锌无机颗粒的丙烯酸树脂涂料,这是一种优良的电工铜绝缘涂料,优于目前广泛采用的铬酸盐绝缘涂料。     

高耐候性聚硅氧烷涂料的研制

以高硅含量、高固低黏的改性聚硅氧烷树脂为基础,制备了聚硅氧烷涂料,并用氨基硅烷固化,制得改性聚硅氧烷涂层。考察了氨基硅烷固化剂用量和种类对聚硅氧烷涂层老化失光和变色行为的影响规律。研究结果表明:在改性聚硅氧烷树脂固定不变的情况下,可通过固化剂的种类和用量调节聚硅氧烷涂料的耐老化性。聚硅氧烷涂料具有远优于聚氨酯涂料的耐老化性和耐盐雾性,可作为氟碳面漆的理想替代品。     

低黏度柔性UV-热双重固化涂料

用环氧树脂、丙烯酸、自制的甲苯二异氰酸酯预聚物以及聚乙二醇合成了2种改性环氧丙烯酸酯TDI-1和PEG-1。物理混合2种改性EA得到光-热双重固化的改性环氧丙烯酸树脂。通过红外光谱表征了改性前后官能团的变化情况,分析了这2种改性环氧丙烯酸树脂(TDI-1和PEG-1)通过物理混合的UV-热双重固化涂料的性能变化情况。测试结果表明,TDI-1和PEG-12种改性环氧丙烯酸树脂混合使用时比单独使用时涂膜的性能更好。所研制的低黏度柔性UV-热双重固化涂料适合于不耐热、不规则的纸张、木器、塑料、汽车零部件等的双重固化涂装。     

UV固化低折射率光纤涂料的研制

研制的紫外光固化低折射率光纤类涂料由乙烯基聚硅氧烷、巯基聚硅氧烷、丙烯酸氟硅聚合物、光引发剂及助剂等组成。该涂料折射率小于1.40,固化速率小于0.3 s,吸水率低,拉伸强度为1.58MPa,伸长率为163%,适用温度范围为-60～200℃,可用于双包层石英光纤的外层以及光固化电连接器等方面。     

丙烯酸树脂及其涂料

200602001具有良好润滑性和优异碱脱除性的涂覆树脂的金属板；200602002丙烯酸组合物及一种可固化涂料组合物；200602003丙烯酸组合物、在涂料中的应用及该丙烯酸组合物的形成；200602004低VOC涂料用原酯保护丙烯酸多元醇共聚物，涂装及固化工艺．以及封闭聚（甲）基丙烯酸酯……     

环保半无机丙烯酸树脂型电工钢绝缘涂料的研究

北京科技大学材料物理化学系的张东升等，系统研究了添加磷酸锌亚微米超细粉末的半无机丙烯酸树脂涂料的固化及其电工性能，对该涂料进行了扫描电镜、热失重、盐雾、硬度和附着性能的试验。结果表明，添加亚微米磷酸锌无机颗粒的丙烯酸树脂涂料，是一种优良的电工钢绝缘涂料，优于目前广泛采用的铬酸盐绝缘涂料。     

辅助材料

耐腐蚀磷酸盐表面活性剂的特性及其在水性涂料中的应用；用作辐射固化涂料助剂的带由SiOC基团连接的（甲基）丙烯酸酯基的聚硅氧烷；溶剂型涂料用颜料浆树脂；氟改性丙烯酸共聚物（第二部分）：聚合表面活性剂；用作颜料分散剂的二羧酸混合酯；适宜作为分散剂和分散体稳定剂的异氰酸脂加成物；含羧基可水解有机基料用稳定剂……[编者按]     

塑料件用水性导电涂料的研制

以水溶性丙烯酸树脂为基料、银包铜粉为导电填料，制备了一种水性导电涂料，并对其理化性能参数进行了测试。讨论了导电填料、水加入量、分散剂以及固化温度、涂膜厚度等对导电涂料性能的影响，确定了最佳的水性导电涂料组成和工艺条件：树脂用量22％、银包铜粉用量35％～44％、溶剂水的添加量28％-40％、分散剂用量0.62％左右、固化温度55℃。     

紫外光固化聚氨酯丙烯酸酯涂料的研究进展

介绍了UV固化PUA水性涂料和PUA粉末涂料的研究进展,并对PUA涂料在多官能度树脂、双固化体系和有机一无机复合涂料等几个方面的进展进行了综述。     

Polyester-based powder coatings with montmorillonite nanoparticles applied on carbon steel

In nanotechnology and nanoscience the development of hybrid (organic-inorganic) nanocompounds has attracted particular attention due to the significant improvement in the properties and the wide diversity of applications compared to conventional composites. In this study, formulations of commercial powder coatings were investigated with 2 and 4% (w/w) of montmorillonite (MMT) in the polyester resin matrix. The coatings were applied by electrostatic spraying on AISI 1008 carbon steel panels. The samples were characterized by TGA, DSC, XRD and TEM. The corrosion performance was evaluated using the salt spray test. Transmission electron microscopy revealed the presence of MMT in the coatings in the exfoliated form. The formulations with MMT presented better performance in terms of the corrosion protection properties.     

Effect of cerium (IV) ions on the anticorrosion properties of siloxane-poly(methyl methacrylate) based film applied on tin coated steel

This work investigates the influence of the addition of cerium (IV) ions on the anticorrosion properties of organic-inorganic hybrid coatings applied to passivated tin coated steel. In order to evaluate the specific effect of cerium (IV) addition on nanostructural features of the organic and inorganic phases of the hybrid coating, the hydrolytic polycondensation of silicon alkoxide and the radical polymerization of the methyl methacrylate (MMA) function were induced separately. The corrosion resistance of the coatings was evaluated by means of linear polarization, Tafel type curves and electrochemical impedance measurements. The impedance results obtained for the hybrid coatings were discussed based on an electrical equivalent circuit used to fit the experimental data. The electrochemical results clearly showed the improvement of the protective properties of the organic-inorganic hybrid coating mainly when the cerium (IV) was added to the organic phase solution precursor, which seemed to be due to the formation of a more uniform and densely reticulated siloxane-PMMA film.     

几种新型富锌涂料的研究进展

介绍了氧化石墨烯改性水性环氧富锌涂料、石墨烯纳米片/环氧富锌(Gnps/ZRE)复合涂料、高柔韧性、高附着力水性无机富锌涂料、石墨烯硅酸盐富锌防腐蚀涂料、水性聚苯胺/氧化石墨烯改性低锌粉含量防腐涂料、还原-氧化石墨烯(r-GO)改性环氧富锌涂料、耐盐雾双组分水性环氧富锌涂料、石墨烯浆料改性水性环氧富锌涂料、双电层水性无机富锌涂料、SnCl2/EtOH溶液法还原氧化石墨烯环氧富锌涂料、有机-无机杂化水性富锌涂料、水性富锌铝涂料、低锌含量石墨烯长效防腐涂料、自固化醇溶性无机富锌底漆和冷镀锌喷漆等几种新型富锌涂料的研究进展。     

聚碳酸酯材料表面防护涂料的制备及其性能研究

以TEOS(正硅酸乙酯)和MTEOS(甲基三乙氧基硅烷)为水解前驱体,以耐磨助剂、自制附着力促进树脂(PE-1)与自制反应型紫外光吸收剂(RUV-1)为改性剂,采用溶胶-凝胶技术,制备了一种能够满足聚碳酸酯材料表面防护要求的有机-无机杂化涂料。研究了无机组分与有机组分比例,以及耐磨助剂、PE-1和RUV-1用量等对涂料关键性能的影响。结果表明:当n(MTEOS)∶n(TEOS)=2∶1,耐磨助剂用量为1.5%,PE-1用量为3%,RUV-1用量为1%时,涂层的综合性能最佳,涂层经400冲程耐磨试验后的雾度值仅为4.3%,涂层经多项环境试验后的附着力均为5B,涂覆该涂层的聚碳酸酯材料经120 h紫外光辐照后的黄变指数仅为0.65。     

Developments of Organic-Inorganic Hybrid Free Radical-Cationic Dual Cured Coatings

Summary Organic-inorganic nanocomposite hybrid coatings were prepared through a dual-cure process involving free-radical and cationic photopolymerization of a methacrylic-epoxy functionalized resin and subsequent condensation of organo-alkoxysilane inorganic precursor. All the formulations investigated gave rise to photocured films characterized by a high gel content values. A lower decrease on glass transition temperature is observed in the presence of MEMO or GPTS compared with a monofunctional methacrylic monomer. The dual-cured hybrid films were optically transparent evidencing that the organic-inorganic phase separation is in the scale of smaller than 400 nm. The formation of nanometric size inorganic domains (in the range between 10–30 nm), both in the presence of MEMO or GPTS as silica precursor, were further confirmed by TEM analysis.     

新型防雾涂料的研究进展

分析了防雾涂料的应用现状,指出现阶段防雾涂料存在的主要问题。介绍了材料表面雾珠的形成机理和防雾的方法,以及水性涂料技术、紫外光固化技术、有机无机杂化技术和纳米技术等在防雾涂料中的应用,并对几种新型防雾涂料,包括水性防雾涂料、紫外光固化防雾涂料、有机无机杂化防雾涂料、纳米防雾涂料等的特点及国内外研究进展进行了综述,在此基础上讨论了防雾涂料研究中需要进一步研究和开发的领域,展望了防雾涂料的发展前景。     

多功能有机-无机杂化纳米涂层

利用溶胶-凝胶法得到有机-无机杂化纳米复合材料，其可用来制成具有多种功能的纳米涂层。由于无机相和有机相的联合作用，纳米涂层表现出优异的耐磨损性、耐腐蚀性、防油性、防雾性、抗静电性、抗折射性等。     

Ethoxysilyl-modified hyperbranched polyesters as mulitfunctional coupling agents for epoxy-silica hybrid coatings

Partially ethoxysilyl-modified hyperbranched aliphatic-aromatic polyesters (HBPs) were effectively used as toughening as well as multi-site coupling agents in the preparation of organic-inorganic UV-thermal dual-cured epoxy/TEOS coatings. Through chain transfer reaction of the phenolic terminal units of the HBPs effective incorporation in the epoxy resin is achieved in the photo-initiated cationic polymerization whereas the ethoxysilane groups allow effective formation of a strongly interconnected inorganic-organics network during the in-situ sol-gel process with TEOS by binding the organic to the inorganic phase. Under those conditions, the addition of the inorganic precursor to the epoxy/HPB (20 wt%) system induced an increase of the storage modulus and more important, an improvement of the viscoelastic properties by extending the performance of the elastic modulus to higher temperatures. Thus, highly transparent hybrid coatings with enhanced thermal-mechanical and surface hardness properties resulted by the use of the partially ethoxysilyl-modified HBPs as multifunctional coupling agents.     

2005-2006年国外环氧树脂工业动态

介绍了国外环氧树脂工业2005-2006年的价格变化,世界各大生产厂商,如美国陶氏化学品公司、捷克Spolchemie公司、日产化学工业公司、日本日立化学品公司、三井化学品公司和沙特的石化生产商Arabian Industrial Development(NAMA)围绕环氧树脂及其配套原料的投资建设动向,日本环氧树脂生产量及在涂料、电气、土木、建筑、粘接及其他领域的消费状况。同时,对新型水性环氧固化剂、具有剪切稳定性的水性环氧分散体、RenPaste无缝成型(SMPs)船舶工业的最新模型树脂及耐热冲击性和耐化学品性、低收缩率、高性能、高强度新型环氧胶黏剂、导电胶黏剂、超高固含量厚膜环氧涂料产品以及柔性环氧-硅氧烷杂混树脂等新领域产品的开发进展分别进行了介绍。