Compared with ordinary calcium carbonate powder, nano calcium carbonate powder has small size effect and surface effect, and can produce excellent properties that ordinary calcium carbonate does not have. It mainly plays the role of reinforcing, filling and toning in rubber products.
Nano calcium carbonate has high activity, and its reinforcing property is much higher than that of light calcium carbonate, which is similar to that of precipitation silica. Nano calcium carbonate has good dispersibility and compatibility in rubber, which can make rubber easy to be mixed and dispersed, improve the processing property of rubber, and improve the mechanical property of products. At the same time, nano-calcium carbonate has a spatial three-dimensional structure and various particle forms. Studies have found that nano-calcium carbonate of different crystal types has different reinforcing effects on rubber, among which interlocking nano-calcium carbonate has the best reinforcing effect on rubber.
It is important to note that it not only can be used as a reinforcing filler used alone, and can be used according to the production requirements and other filling agent, can not only reach the reinforcement, filling, improving processing technology, and to improve the performance of products, also has a whitening effect and partly replacing the white carbon black, titanium dioxide, expensive white packing.

The rubber industry is the main consumer of nano calcium carbonate, which is mainly used in the tire inner rubber and outer tire, special parts of automobile tire inner tube and outer tire, adhesive tape, rubber shoes and adhesive cloth. Suitable for NR, BR, SBR and other rubber systems