单组分聚脲材料在寒冷地区某大坝溢流面防护中的应用

水利水电工程泄洪建筑物表面经常遭受高速含沙水流或携带推移质的冲刷,经过一段时间的运行,往往会出现不同程度的磨损及气蚀破坏,采用性能优越的水工混凝土抗冲耐磨材料修复和防护尤为重要。本文通过单组分聚脲材料性能试验揭示了材料的特点,介绍了其在新疆某大坝溢流面防护中的应用情况,其处理技术对类似工程具有良好的借鉴意义。     

多孔淀粉在内墙涂料中的应用

本用多孔淀粉和淀粉吸附天然除虫菊酯后加入内墙涂料，通过对两解吸附量、释放时间的比较，说明在内墙涂料中加入杀虫剂的可行性，同时也表明多孔淀粉作为一种新型的吸附和缓释剂，有着广泛的用途。     

纳米TiO_2可见光催化零VOC内墙乳胶漆

介绍了纳米TiO2光催化的机理和特点、纳米TiO2可见光催化零VOC内墙乳胶漆的性能和应用等。表明其不仅是零VOC无毒无害,而且是一种能在一般室内照明条件下净化空气的内墙乳胶漆。     

新型带锈防锈涂料的施工技术及应用

介绍了ZY系列带锈防锈漆的性能、施工技术及应用实例。     

胶粘耐磨涂层的制备与抗冲蚀磨损性能研究

研制了一种应用于水力机械元件和设备的抗冲蚀磨损的胶粘耐磨涂层。分析了涂层的制备工艺，检测了涂层的各项性能，研究了耐磨涂层的抗冲蚀磨损性能。研究发现：底部涂层与基体间的相互吸附、涂层间的相互扩散、偶联剂的共价键连接和机械互锁，均能使涂层与涂层之间、底层与基体之间在界面处形成牢固结合，有利于提高耐磨涂层的整体抗冲蚀磨损性能。     

水性涂料分散剂PD的生产

本文介绍了水性涂料分散剂大分子萘磺酸甲醛缩合物的钠盐(PD)的生产工艺流程，并与国外同类产品的性能技术指标进行了对比，结果表明：该产品完全可以作为国外同类产品的替代品，具有较高的使用和推广价值。     

高性能自干型汽车用面漆的研制

用酯化法制得高性能丙烯酸改性醇酸树脂,并用该树脂配制成施工方便,干燥迅速,抗回黏性、耐沾污性、耐候性及耐油性好的单组分汽车涂料。介绍了该树脂及涂料的配方设计、生产工艺和产品性能。     

环境保护与汽车涂装

叙述了与汽车涂装相关的国际环保法规及汽车涂装的公害,重点介绍了汽车用环保型涂料、5R活动和3C1B涂装技术等环保达标措施.     

Recent studies of self-condensation and co-condensation of melamine-formaldehyde resins; cure at low temperatures

Self-condensation: recent research on the chemical pathways by which alcoholated melamine-formaldehyde (MF) resins react with themselves and on the product structures is summarized. Model compound studies suggest that bridges are less stable than widely thought unless they are in hexahydro-1,3,5-triazine ring structures. In acyclic structures they are probably less stable than bridges. Co-condensation: studies of how the composition of MF resins influences the rates of reaction with poly(ol) co-reactant show that MF resins that contain very low levels of and/or functionality are quite reactive. Reactivities of a variety of poly(ester) and acrylic coreactants were studied. By combining reactive MF resins with reactive co-reactants one can formulate high solids enamels that cure by co-condensation in 30 min at 50 to 65 °C with 0.5 parts per hundred (phr) of p-toluenesulfonic acid (p-TSA) catalyst. Cure at 25 °C appears feasible with higher catalyst levels.     

Development and characterization of silicone/phosphorus modified epoxy materials and their application as anticorrosion and antifouling coatings

Epoxy resin is chosen for our present study owing to its exceptional combination of properties such as easy processing, high safety, excellent solvent and chemical resistance, toughness, low shrinkage on cure, good electrical, mechanical and corrosion resistance with excellent adhesion to many substrates. This versatility in formulation made epoxy resins widely applied for surface coatings, adhesives, laminates, composites, potting, painting materials, encapsulant for semiconductor and insulating material for electric devices. There are numerous paint/coating systems based on epoxy resin available for corrosion and fouling prevention. They however are not completely satisfactory in field applications, where high corrosion, fouling and flame resistance are required. The demand for epoxy resin as corrosion/fouling resistant coatings is restricted mainly due to its inferior characteristics like poor impact strength, high rigidity, and moisture absorbing nature besides inadequate flame retardant properties. It is for this reason that silicones and phosphorus-based compounds are used as modifier in this work by intercrosslinking network mechanism (ICN) to obtain epoxy resin with desired properties ideally suitable for field applications for preventing corrosion and fouling with flame retardantancy. The present work involves the development of solvent free silicone/phosphorus modified epoxy coating systems, since solvent free coating systems are widely used for numerous applications due to their lower cost per unit film thickness, freedom from fire and pollution hazard and ability to provide better performance. For the development of coating systems, epoxy resin (X) serves as base material, hydroxyl terminated polydimethylsiloxane (HTPDMS) as modifier, γ-aminopropyltriethoxysilane (γ-APS) as crosslinking agent and dibutyltindilaurate (DBTDL) as catalyst. Polyamidoamine (A), aromatic amine adducts (B) and phosphorus-containing diamine (C) were used as curing agents. The study also describes the evaluation of corrosion resistant behaviour of unmodified epoxy and siliconized epoxy coatings by potentiodynamic polarization method, electrochemical impedance spectroscopy (EIS), salt-spray and antifouling tests. The results are discussed.