论文部分内容阅读
对合成双组分聚氨酯密封材料的填料进行了选择 ,发现经过表面活化处理的碳酸钙微粉可作为主要填料品种使用 ,但为了达到密封材料施工和固化后机械物理性能的要求 ,对填料的粒度、粒径分布、表面活化程度及粉体的干燥程度都有较高的要求。
The filler of synthetic two-component polyurethane sealing material was selected and found that the surface-activated calcium carbonate powder can be used as the main filler species, but in order to meet the mechanical and physical properties of the sealing material after curing and curing requirements, the particle size, Particle size distribution, the degree of surface activation and the degree of dry powder have higher requirements.