为防止水道用大中直径钢管内表面腐蚀,长年使用焦油环氧涂层。现已查明,在焦油中含有苯致癌物质。虽然含量甚少(在标准规定之下),但对人体也有害。因此,人们强烈要求开发无毒的更安个涂层。对这种涂层的要求有两点:涂层的耐腐蚀性能和水质有无不良的影 In order to prevent corrosion of large and medium diameter steel pipe inner surface, long-term use of tar epoxy coating. It has been identified that there is benzene carcinogen in tar. Although very low (under the standard), it is also harmful to the human body. Therefore, there is a strong demand for the development of non-toxic, more safe coatings. There are two requirements for this coating: the coating’s corrosion resistance and water quality