钢渣基功能填料的高附加值非建材领域应用研究进展

Research progress in steel slag-based functional fillers with high added value in non-building materials field

人类在面临一次资源日益枯竭的同时,又必须面对因一次资源消耗带来的固废难处理问题。因此,在充分考察钢渣性质基础上,利用钢渣特性,研发可以用于橡胶、涂料、塑料领域的钢渣基功能填料,有望实现钢渣跨产业生态链及高附加值利用,具有巨大经济价值与重要现实意义。钢渣基功能填料具有吸附性强、粒径小、与有机体系相容性好等特征,在橡胶输送带、钢结构防锈涂料、建筑外墙涂料、人造复合板材等领域具有广泛应用的潜力。本文首先对钢渣的特性、钢渣基功能填料的制备原理做了简要介绍;并就钢渣基功能填料作为橡胶填料、涂料颜填料与塑料填料的应用情况进行了具体分析。然后详细指出钢渣基功能填料用于橡胶复合材料、建筑外墙底漆、建筑外墙涂料、PVC微发泡板材的特点,并就目前钢渣基功能填料的局限性进行详细评述。在此基础上,指出优化钢渣基功能填料性能与开发多固废基协同复合功能填料,是钢渣基功能填料未来主要发展方向。

People not only face the increasing depletion of primary resources,but also the difficult disposal of solid waste caused by consumption of primary resources.On the basis of fully investigating properties of steel slag,the steel slag-based functional filler has been researched and developed according to the characteristics of steel slag.It has been used in the fields of rubber,coatings and plastics,hoping to realize the cross-industry ecological chain and high value-added utilization of steel slag,which has great economic value and important practical significance.Steel slag-based functional filler has the characteristics of strong adsorption,small particle size,and good compatibility with organic systems.Therefore,it is potential to be widely used in rubber conveyor belts,steel structure anti-rust coatings,architectural exterior wall coatings,man-made composite panels and other fields.In this paper,the characteristics of steel slag and the preparation principle of steel slag-based functional fillers were firstly briefly introduced,and then,the situation of steel slag-based functional fillers used as rubber fillers,paint pigments,and plastic fillers was specifically analyzed.Secondly,the characteristics of steel slag-based functional fillers used in rubber composite materials,building exterior wall primers,building exterior wall coatings,and PVC micro-foamed sheets were pointed out respectively in detail.Then,the application limitations of current steel slag-based functional fillers were reviewed.Eventually,it was proposed to optimize the performance of steel slag-based functional fillers and develop multi-solid waste-based synergistic composite functional fillers,which will be the main development directions of steel slag-based functional fillers in the future.