醇基涂料的研究现状与展望

Current research and outlook on alcohol-based coating

介绍了醇基涂料的应用和研究现状,简述了消失模醇基涂料、V法醇基涂料、湿型砂醇基涂料、醇基流涂涂料以及厚大铸钢件醇基涂料的相关研究及应用效果,分析了醇基涂料的主要性能,如悬浮性、抗粘砂性等的研究成果,以及醇基涂料的性能要求和发展趋势,指出耐火骨料的粒度、级配和悬浮剂的选用对改善涂料悬浮性有重要作用,纳米复合悬浮剂、改性悬浮剂的使用使涂料悬浮性得到显著提高;不同粒度组合的耐火骨料和助熔剂的加入能改善涂料的抗粘砂性能,而转移涂料、醇基粉状涂料是未来醇基涂料的发展趋势,得出应研发具有水与醇兼溶的特殊悬浮剂和黏结剂来进一步提高涂料的悬浮性以及研制出强度高、抗开裂的高强涂料来提高涂料的抗粘砂性能。

This paper describes the current application and research of alcohol-based coating and introduced the related research and application effect of alcohol-based coating for lost foam casting(LFC),V method casting,green sand casting,flow coating and heavy steel cast.It also analyzes main performances,such as research results of suspension and adhering sand resistance,as well as performance requirements and development trend of alcohol-based coating.It is pointed out that refractory aggregate,gradation and the selection of suspending agent play an important role in improving coating suspension,that the usage of nanocomposited suspending agent and modified suspending agent can improve coating suspension significantly,and that refractory aggregate with different particle size and addition of flux can change the adhering sand resistance of coating.Transfer coating,alcohol-based powder coating is the trend of future alcohol-based coating.Therefore,special suspending agent and adhesive with water and alcohol solution as well as high strength coating with high strength and anti-cracking should be exploited to improve suspension and adhering sand resistance.