Application of sericite in paint field
超细绢云母粉是一种新型功能性填充剂，广泛应用于油漆和涂料领域中。由于绢云母粉呈细鳞片状、晶面光洁、径厚比大、白度高、化学性能稳定、质轻、光滑、绝缘、抗辐射性，是各种高档油漆、防锈、防火、防腐涂料的良好颜填料。由于绢云母的层状结构，致使染料粒子进入绢云母的晶格层间后，可保持漆膜长久不褪色。
Ultra fine sericite powder is a new type of functional filler, which is widely used in the field of paints and coatings. Because sericite powder is in the form of fine flakes, smooth crystal surface, large diameter thickness ratio, high whiteness, stable chemical performance, light weight, smooth, insulation, and radiation resistance, it is a good filler for various high-grade paints, rust prevention, fire prevention, and anti-corrosion coatings. Due to the layered structure of sericite, the dye particles enter the lattice layer of sericite, which can keep the paint film from fading for a long time.
绢云母与传统的涂料填料滑石粉、高岭土、硅灰石等的化学本质相似，都属于硅酸盐类矿物，但其结构独特和性能特殊使其在应用中影响涂料的相关性能，例如，在涂料中具有平面增强作用。在涂料配方中用超细绢云母粉代替传统的无机填料，可以明显增强涂膜强度和涂膜与基材的附着力，改善涂料涂层的整体性、耐候性和耐酸碱性，提高漆膜的平滑性。应用于外墙涂料，可提高其耐热、防污、防辐射等性能。
Sericite is similar to the traditional coating filler talc, kaolin, wollastonite, etc. in chemical nature, and belongs to silicate minerals. However, its unique structure and special performance affect the relevant performance of the coating in application, for example, it has a plane strengthening effect in the coating. Using superfine sericite powder instead of traditional inorganic filler in the coating formula can significantly enhance the film strength and adhesion between the film and the substrate, improve the integrity, weather resistance, acid and alkali resistance of the coating, and improve the smoothness of the film. Applied to exterior wall coatings, it can improve their heat resistance, stain resistance, radiation resistance, and other properties.
在高档油漆中可加入湿磨绢云母粉替代锌粉、铝粉、钛粉末等，国外已普遍将湿磨绢云母粉应用于标准亚麻油民用漆、丁二烯乳、丙乙烯、聚乙酸烯脂乳及丙烯酸乳等室内壁漆以及汽车、摩托车、船舶油漆等。
Wet ground sericite powder can be added to high-grade paint to replace zinc powder, aluminum powder, titanium powder, etc. Wet ground sericite powder has been widely used abroad for standard linseed oil civil paint, butadiene emulsion, propylene, polyacrylate and acrylic emulsion and other indoor wall coatings, as well as automobile, motorcycle, ship paint, etc.
在钢结构防火涂料中添加超细绢云母粉后，其相关性能都有较大的提高，添加钛酸酯偶联剂改性的绢云母粉，防火涂料的耐热极限提高了25℃，耐水极限由28h提高到47h，粘结强度由0.45MPa提高到1.44MPa。
After adding ultrafine sericite powder to the steel structure fire retardant coating, its relevant properties have been greatly improved. Adding titanate coupling agent modified sericite powder, the heat resistance limit of the fire retardant coating has increased by 25 ℃, the water resistance limit has increased from 28h to 47h, and the bond strength has increased from 0.45MPa to 1.44MPa.
向锈转化涂料中加入适量的超细绢云母粉，可使增强涂膜的耐热、耐候、耐水、防蚀性及综合机械性能。
Adding an appropriate amount of ultra-fine sericite powder to the rust conversion coating can enhance the heat resistance, weather resistance, water resistance, corrosion resistance and comprehensive mechanical properties of the coating film.
在防腐涂料中添加超细绢云母粉后，涂膜的表面硬度、柔韧性、附着力、耐冲击性均有提高；同时，可替代或部分替代涂料配方中钛白粉降低成本，而不影响涂料的性能。
The surface hardness, flexibility, adhesion and impact resistance of the film are improved by adding ultra-fine sericite powder to the anti-corrosion coating; At the same time, it can replace or partially replace titanium dioxide in the paint formula to reduce the cost without affecting the performance of the paint.
