Calcium carbonate is one of the earliest and most used fillers in the rubber industry. Being heavily filled in rubber products.

1. Not only can increase the volume of the product, but also save expensive natural rubber or synthetic rubber, to achieve the purpose of reducing costs.

2. Improve processing performance
In the processing of rubber, in order to form the demand, the processing performance is very important. In the formulation of ordinary rubber products, it is often necessary to add a portion of calcium carbonate. Among the light-colored fillers, calcium carbonate has the best dispersibility, can be mixed with rubber in a random ratio, and other additives can be mixed together, and the mixture can be mixed.


3. Improve the properties of vulcanizate, and strengthen and semi-reinforcing
Ultrafine and fine calcium carbonate filled with rubber can achieve higher expansion strength, wear resistance and tear strength than pure rubber sulfide. The finer the calcium carbonate particles. The improvement in rubber expansion strength, tear strength, and flexibility is more pronounced. Active calcium carbonate has been used in natural rubber and synthetic rubber, which can greatly improve the expansion strength of rubber.

4. Play some special roles in rubber processing
In vulcanized rubber, calcium carbonate can adjust the hardness. In the range of adding 100 parts, the hardness after participating in heavy calcium is not as high as that of participating in precipitation of light calcium carbonate; the hardness of precipitated calcium carbonate (light) increases by 10 parts. 1 degree; the hardness of fine calcium carbonate and activated calcium carbonate increases by 2 to 3 degrees for every 10 parts of hardness. In the rubber industry, the amount of calcium carbonate is often modified to adjust the hardness.

You can try the crusher and mill of Shanghai Clirik Machiery Co.,Ltd to produce calcium carbonate. Welcome to contact us to know more details.