一种透明耐低温耐候涂料的制备及其防腐性能研究  

Preparation of a transparent low-temperature-resistant and weather-resistant paint and study on its anticorrosion property

作　　者：蒋科若 梁流铭 杨跃平 马丽军 赵铁林 冯瑜 刘栓[3] JIANG Keruo;LIANG Liuming;YANG Yueping;MA Lijun;ZHAO Tielin;FENG Yu;LIU Shuan(State Grid Zhejiang Electric Power Corporation Ningbo Power Supply Company,Ningbo 3152012,China)

机构地区：[1]国网浙江省电力有限公司宁波供电公司,浙江宁波315201 [2]浙江天派科技有限公司,浙江宁波315201 [3]中国科学院宁波材料技术与工程研究所,浙江宁波315201

出　　处：《电镀与涂饰》2020年第6期306-310,共5页Electroplating & Finishing

摘　　要：以氟碳树脂为主要成膜物制备了一种无色透明耐低温耐候防腐涂料,用于304不锈钢及焊缝处的腐蚀防护。考察了树脂型号、主剂与固化剂的质量比和紫外光吸收剂含量对涂层性能的影响。通过电化学测试技术、中性盐雾试验、人工耐老化试验和不锈钢低温管道现场涂覆试验探究了所制涂层的防护效果。结果表明,所制涂层的附着力为0级,耐冲击性(1 kg)50 cm,柔韧性2 mm,经过1200 h老化试验无明显变化,中性盐雾试验1500 h后表面保持完整且湿附着力为3.52 MPa。A colorless transparent low-temperature-resistant and weather-resistant anticorrosive paint was prepared with fluorocarbon resin as binder for protecting 304 stainless steel and its welds from corrosion.The effects of the type of resin,the mass ratio of component A to B(curing agent),and the content of ultraviolet absorbent on the properties of the coating obtained therefrom were studied.The protection effectiveness of the coating was examined through electrochemical measurement,neutral salt spray test,artificial aging test,and field coating test on a stainless steel pipeline for low temperature application.The results indicated that the coating had the following physical properties:0-grade adhesion,failure height at least 50 cm for an 1-kg impact,and flexibility 2 mm.No distinct change was observed for the coating after 1200-hour artificial aging test,and it was intact with an adhesion strength of 3.52 MPa in wet after neutral salt spray test for 1500 hours.

关 键 词：氟碳涂料 不锈钢 焊缝 防腐 耐候性 

分 类 号：TQ632.4[化学工程—精细化工]