Coated bittern corrosion inhibitor and preparation method thereof

• Main Authors: TENG JIANYONG, WANG HOUMI, GUAN ZHAOSHUAI, ZHENG SHENGTAO, LI HAIFENG, WANG ZHENDI, DUAN DEFENG
• Format: Patent
• Language: Chinese; English
• Published: 25.08.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a coated bittern corrosion inhibitor which comprises the following components in parts by mass: 10-60 parts of an admixture, 5-30 parts of a coated barium salt barrier material and 5-30 parts of solid-state lithium water glass powder. The invention also discloses a preparation method. The barium salt is innovatively subjected to surface coating treatment, the problem that soluble barium salt is dissolved out too early and reacts with gypsum in cement is solved, the nano silica sol film wrapping the surface of the barium salt reacts with a hydration product in the cement hydration process and then is slowly dissolved, and the barium salt is dissolved out in the later period and solidified in hardened concrete. 本发明公开了一种包覆性盐卤腐蚀抑制剂，包括以下质量分数组分：10份～60份的掺合料、5份～30份的包覆性钡盐阻隔材料、5份～30份的固态锂水玻璃粉末。还公开了其制备方法。本发明创新的将钡盐进行表面包覆处理，解决了可溶性钡盐过早溶出和水泥中的石膏反应的难题，包裹在钡盐表面的纳米硅溶胶薄膜在水泥水化过程中与水化产物反应后缓慢溶解，实现钡盐后期溶出并固化在硬化混凝土中。