海水淡化是人类获得淡水资源的有效途径之一,但是海水淡化过程中环境苛刻,对设备腐蚀性强,在海水淡化设备内壁涂覆具有耐热重防腐功能的特种涂料是保护设备、降低维护成本的较好途径。该类涂料国外生产厂家技术领先,可实现延长碳钢基材防腐寿命10年以上,但是国内该方面涂料技术达不到相应性能,仍处于探索阶段。本发明公布了一种低温多效蒸发器用特种防腐蚀涂料,该特种涂料在划痕加速试验的条件下能够耐受88℃海水浸泡2000h,具备10.3MPa的湿态附着力,有望实现海水蒸发器内舱钢基材长寿命防腐蚀性,填补该方面空白。
Seawater desalination is one of the effective ways for humans to obtain freshwater resources. However, the environment in the desalination process is harsh and corrosive to equipment. Special coatings with heat-resistant and heavy-corrosion functions are applied to the inner wall of desalination equipment to protect equipment and reduce maintenance costs. The better way. Foreign manufacturers of this kind of coatings have advanced technology and can extend the anti-corrosion life of carbon steel substrates by more than 10 years. However, the domestic coating technology in this area cannot achieve the corresponding performance and is still in the exploratory stage. The present invention discloses a special anti-corrosion coating for low-temperature multi-effect evaporator. The special coating can withstand 88°C seawater immersion for 2000h under the conditions of scratch accelerated test, has 10.3MPa wet adhesion, and is expected to realize seawater evaporator The long-life corrosion resistance of the inner cabin steel base material fills the gap in this regard.