H-801、H-802环氧防腐蚀漆

H-801(即H-801云铁环氧防锈漆)和H-802(即H-802铁红环氧油舱漆)均属环氧树脂胺固化类型的高固体分防腐涂料。这类漆不同于低固体分溶剂型环氧漆,对大气污染少;同无溶剂型环氧漆比较,有较好的施工环境适应性(施工期较长),造价较低。此种漆广泛应用于化工设备、下水工程、水库压力管、海上码头设施的防腐,特别适于船舶内舱及油库等通风条件差的环境应用。     

一种高固体分环氧防腐涂料的研制

采用小分子量环氧树脂和大分子量环氧树脂复配作为基料,以腰果壳油改性酚醛胺为固化剂,研制了一种高固体分环氧防腐涂料,并进行了性能检测。讨论了环氧树脂、环氧稀释剂、颜填料、流变助剂和固化剂对涂料性能的影响。     

国外简讯

无溶剂环氧地板漆据报道,英国West Yorkshire的Resdev公司推出一种无溶剂环氧地板漆,可在4h完全固化。Resi-cure 500是高固体分漆,二次涂装膜厚0.5mm,使用寿命至少5年。采用高效固化剂,所形成的漆膜比普通环氧漆牢固,并缩短了施工时间和固化时间。     

环氧树脂／固化剂对自分层涂料分层效果的影响

利用环氧树脂与有机硅树脂的不相容性,制备出无溶剂可自分层固化环氧-有机硅涂层.通过对比不同环氧树脂及环氧固化剂分层效果,分析环氧树脂及环氧固化剂对无溶剂自分层涂料分层效果的影响;通过对无溶剂自分层涂料中组分/材料的表面张力、密度、相容性的研究,总结无溶剂自分层涂料的分层影响因素并探讨分层机理.     

高固体分环氧底漆的配方设计

设计了符合T/CNCIA 01005—2018《低VOCs含量高固体分、超高固体分和无溶剂环氧涂料定义》标准的环氧底漆。实验表明,树脂体系采用YPE-6101环氧树脂和JT-312树脂(长碳链羰基化合物)复配,添加新型防锈颜填料,获得了具有良好附着力、耐盐雾性能好、高固体分的环氧底漆。     

超高固体分环氧底漆的研制

介绍了超高固体分环氧底漆的制备方法,重点阐述了环氧树脂、填料、分散剂及固化剂的筛选过程。制备的涂料不仅性能符合国家标准HG/T 4566—2013《环氧树脂底漆》,而且固含量及VOC含量也是满足团体标准T/CNCIA 01005—2018《低VOCs含量高固体分、超高固体分和无溶剂环氧涂料定义》,符合国家环保要求,具有广阔的市场前景、经济效益和社会效益。     

环氧树脂涂料掘金“蓝海”走俏未来

正环氧树脂涂料是近年来发展极为迅速的一类工业油漆涂料,主要品种是双组分涂料,由环氧树脂和固化剂组成。环氧漆的主要优点是对水泥、金属等无机材料的附着力很强;涂料本身非常耐腐蚀;机械性能优良,耐磨,耐冲击;可制成无溶剂或高固体份涂料;耐有机溶剂,耐热,耐水;涂膜无毒。缺点是耐候性不好,日光照射久了有可能出现粉化现象,因而只能用于底漆或内用漆;装饰性较差,光泽不易保     

上海杜耳化工有限公司

上海杜耳化工有限公司创立于二零零三年二月,采用欧美进口原料和专有改性技术,专业生产用于环氧粘合剂、环氧电子灌封料和各种高固体份及无溶剂环氧涂料所需的改性胺环氧固化剂,全面提升国内环氧树脂的应用水平是我们孜孜以求的目标。用于环氧胶粘剂的改性胺固化剂如下:     

上海杜耳化工有限公司

正上海杜耳化工有限公司创立于二零零三年二月,采用欧美进口原料和专有改性技术,专业生产用于环氧粘合剂、环氧电子灌封料和各种高固体份及无溶剂环氧涂料所需的改性胺环氧固化剂,全面提升国内环氧树脂的应用水平是我们孜孜以求的目标。用于环氧胶粘剂的改性胺固化剂如下:     

上海杜耳化工有限公司

正上海杜耳化工有限公司创立于二零零三年二月,采用欧美进口原料和专有改性技术,专业生产用于环氧粘合剂、环氧电子灌封料和各种高固体份及无溶剂环氧涂料所需的改性胺环氧固化剂,全面提升国内环氧树脂的应用水平是我们孜孜以求的目标。用于环氧胶粘剂的改性胺固化剂如下:     

快干型双组分水性环氧树脂涂料的研究

采用水性环氧树脂乳液作为环氧基组分，水溶性聚酰胺作为固化剂，配制成快干型双组分水性环氧树脂防腐底漆。该涂料保持了溶剂型环氧防腐蚀涂料的强附着力和耐化学品性能，适用于对溶剂散发要求极为严格的非下水钢结构     

无溶剂超厚膜型环氧重防腐涂料的研制

研制了由高分子量和低分子量搭配的环氧树脂与改性聚酰胺固化剂反应,再添加适量的硅基聚合剂、活性稀释剂、颜填料和助剂等得到了无溶剂超厚膜型环氧重防腐涂料,该涂料不含有机溶剂,对环境无污染,一次喷涂干膜厚度可达1200～1300μm,对涂层的基础物性进行了测试,并讨论了各组分对涂层的影响。     

柔性环氧腻子的制备

以低分子量液态新型环氧树脂和柔韧性好的环氧固化剂为主要成膜物质,配以适宜的颜填料、助剂、溶剂,形成具有柔韧性好、粘结强度高、防腐性能良好的柔性环氧腻子。着重讨论了树脂基料对腻子开裂和混凝土防腐性能的影响。     

高性能水性环氧自流平地坪涂料的研制

通过将甲基丙烯酸和苯乙烯等单体与较高相对分子质量的环氧树脂接枝共聚，制备了环氧接枝丙烯酸水分散体树脂，并以此为基料与水性环氧固化剂复配制备了高性能水性环氧自流平地坪涂料。分析了涂膜的单向透气性。     

Anticorrosive properties of the epoxy–cardanol resin based paints

An epoxy–cardanol resin was developed using epichlorohydrin, bisphenol-A and cardanol. On evaluation it was found that epoxy–cardanol resin exhibits better properties as compared to epoxy resin in terms of increase in tensile strength, elongation, bond with steel and lowering of water vapour transmission of the film. The improvement in these properties indicated that the paints based on modified resin would be more durable than the epoxy based paints. Accordingly, paints were formulated using the developed resin and their performance were compared with their counterparts made with unmodified epoxy resin. Zinc powder, zinc phosphate, micaceous iron oxide and synthetic iron oxide were used as pigments along with fillers, additives and an aromatic polyamine adduct hardener. For both types of paints similar doses of pigments and additives were used. Physico-mechanical properties, chemical resistance and corrosion protection efficiency of the formulated paints were determined. It was found that the anticorrosive properties of epoxy–cardanol resin based paints are superior to that of the paints formulated with the unmodified epoxy resin. Micaceous iron oxide based paints in epoxy–cardanol resin showed the best performance followed by zinc phosphate based paints. It is concluded that the developed resin is a better binder media for the formulation of paints.     

活性溶剂涂料及其未来发展

活性溶剂涂料指其溶剂最终成为涂膜组成,在固化成膜过程中不向大气排放VOC。文中介绍了丙烯酸树脂、多异氰酸酯、聚脲涂料、无溶剂涂料、改性环氧树脂涂料和有机硅涂料产品。     

环氧-聚氨酯导静电防腐蚀油罐漆的试验研究

选用中等相对分子质量的双酚A型环氧树脂和聚氨酯固化剂配制成了导静电防腐蚀油罐漆,讨论了聚氨酯的类型、NCO和OH的比例对涂膜导电性的影响,并与多元胺固化的环氧油罐漆进行了性能和成本对比。     

一种不锈钢用涂层研究

研制了一种适用于奥氏体不锈钢材料的重防腐涂料。介绍了该涂料配方的设计思路。通过盐雾试验对成膜物质进行了筛选,获得了由A、B组分组成的无色透明的重防腐涂料。其中A组份的配方为:1改#性树脂25%,2#改性树脂51%,高沸点溶剂20%,助剂4%。B组份为:环氧树脂50%,增韧树脂10%,溶剂38%,助剂2%。对涂饰该涂料的不锈钢器皿作了工作介质浸泡试验、毒性检测和附着力检测实验。结果表明,经过工作介质浸泡1个月后涂层耐蚀性优良;毒性检测符合国家标准;附着力达到5B等级。     

水性涂料的研究进展

与传统溶剂型涂料相比,水性涂料具有环保和性能优异等特点,成为涂料工业的发展主流。综述了环氧树脂、聚氨酯、丙烯酸酯和醇酸树脂等4种常用水性涂料的研究进展。     

Evaluation of Mesua ferrea L. seed oil modified polyurethane paints

Two types of stoving paints have been prepared from Mesua ferrea L. seed oil (MFLSO) modified poly(urethane ester) (PUE) binder systems. One stoving paint system was prepared from partially butylated melamine formaldehyde (MF) resin modified MFLSO-based PUE (70:30 weight ratio) and other one comprised of bisphenol-A-based epoxy resin modified with MFLSO-based PUE (50:50 weight ratio). Paints made with these two resin systems as binders were evaluated against the standard paint system. The physical properties of the paint systems viz. non-volatile content, specific gravity, viscosity, drying time, flexibility, adhesion, scratch hardness, gloss, etc. and chemical properties such as corrosion resistance, salt spray resistance, UV resistance, etc. were measured as per the standard methods and were compared. Thermal stability and surface morphology of the paints were also studied by using thermogravimetric analysis (TGA) and scanning electron microscopy (SEM), respectively. The performance characteristics of both the test paints were found to be comparable with the corresponding industrial standard paints. Out of the two test paints, the epoxy modified PUE-based stoving paint has been found to be preferred.