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Factors affecting the quality of heavy calcium carbonate products

  • Categories:Industry News
  • Author:
  • Origin:http://www.shenxinggaiye.cn
  • Time of issue:2020-12-29 17:54
  • Views:

(Summary description)The color and appearance of products produced by heavy calcium carbonate manufacturers will not only be affected by the level of purity, but also have an impact on the mechanical properties and processing properties of the material.

Factors affecting the quality of heavy calcium carbonate products

(Summary description)The color and appearance of products produced by heavy calcium carbonate manufacturers will not only be affected by the level of purity, but also have an impact on the mechanical properties and processing properties of the material.

  • Categories:Industry News
  • Author:
  • Origin:http://www.shenxinggaiye.cn
  • Time of issue:2020-12-29 17:54
  • Views:
Information

1. Purity

The color and appearance of products produced by heavy calcium carbonate manufacturers will not only be affected by the level of purity, but also have an impact on the mechanical properties and processing properties of the material. Therefore, the higher the content of heavy calcium carbonate, the better, and the lower the content of impurities, the better.

2. Whiteness

Whiteness mainly affects the color and appearance of the product. Under the same performance conditions, the higher the whiteness, the better, and the less impact on the coloring power of the material.

Factors affecting the quality of heavy calcium carbonate products

3. Particle size and distribution

A very important factor to measure the quality of heavy calcium products is the particle size and its distribution, which mainly affect the mechanical properties of the material. The finer the particle size of the powder, the larger the specific surface area, and the better the use effect. The form of primary particles added to the resin is easy to agglomerate in a multi-aggregated form, the dispersion is uneven, it is difficult to form a stable interface, and the product performance continues to decline. Therefore, the heavy calcium for plastics produced by heavy calcium carbonate manufacturers is not as fine as possible, but the fineness is appropriate.

4. Particle morphology and crystal form

The particle shape of heavy calcium carbonate has a great influence on the filling and modification of plastics. For example, fibers and flakes are good for the mechanical strength of PVC composites, but not good for molding processability. On the contrary, spherical fillers can improve the processing performance of the material, but will reduce the mechanical strength of the material. The influence of crystal structure has begun to receive attention in the industry. For example, heavy calcium powder made with crushing machinery has a large powder content and a crystal form close to the same particles. While ensuring the dispersibility, it also enhances the mechanical properties.

5. Moisture and low molecular weight substances

Moisture and low-molecular-weight substances are not good for the product, because moisture and low-molecular-weight substances cause some defects on the surface of the product, and in severe cases, the product will be honeycomb or bridging and breaking during material transportation. It not only affects the mechanical properties of the product, but also affects the appearance of the product.

The above is all the content that the editor has introduced to you. I hope you can help you after reading it. If you have anything you want to know, please contact us.

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