纳米碳酸钙在密封胶中的应用研究

Application of Nano Calcium Carbonate in Sealant

介绍纳米碳酸钙的生产工艺及在密封胶中的应用,通过实验表明:不同的表面处理剂对密封胶性能有影响,其中硬脂酸与偶联剂复合的密封胶强度与伸长率较高;纳米碳酸钙在密封胶中有一定的补强性能,比表面积控制在合适的范围时,具有良好的分散性、强度和伸长率;不同晶形的纳米碳酸钙用于密封材料性能不同,其中立方体和菱形具有较低的吸油值和较高的强度和伸长率。

The production technology of nano-calcium carbonate and application in sealant are introduced.The experiment shows that different surface treatment agents have different effects on sealant properties,the sealant prepared by stearic acid and coupling agent has higher strength and elongation,The nano-calcium carbonate has certain reinforcing properties in sealant,when the specific surface area is controlled in an appropriate range.It has good dispersibility,strength and elongation;different crystal forms of nano-calcium carbonate have an impact,The cubic and rhombic have lower oil absorption value and higher strength and elongation.