Nano calcium carbonate can replace silica-filled silicone rubber to a certain extent, and is the main raw material for the production of silicone rubber. As a filler and reinforcing agent of silicone rubber, nano-calcium carbonate can greatly reduce product cost, improve product processing performance, and greatly improve rubber's mechanical properties such as tensile strength and tear strength. By controlling the crystal form, particle size and surface treatment of nano calcium carbonate, the product can obtain excellent thixotropy and sag resistance.
Shenxing series of nanometer and submicron activated calcium carbonate has good compatibility with rubber, and is mainly used to prepare rubber products such as tires, hoses, tapes, oil seals and auto parts. The product can be used in NR, BR, SBR and other rubber systems to make the rubber easy to mix, easy to disperse, and the mixed rubber is soft, and to improve the extrusion processing performance and model fluidity; make the rubber surface smooth, elongation/tensile High strength, small permanent deformation, good bending resistance, high tear resistance, thus replacing or mostly replacing broken black or white broken black, providing an excellent reinforcing material for light-colored rubber products.