The use and manufacture of silica masterbatch

The process of making fumed silica into masterbatch

Fumed silica is gradually added as a filler in the production of various types of materials.However, direct addition cannot be completely mixed with the material for production, and there is no fully mixed materialIt will directly affect the hardness, tensile strength, fracture degree, etc. of the material.The characteristics of carbon black, our company has undergone repeated tests, improved production e, and thenProduces silica masterbatches suitable for use on a variety of materials.

The role of silica masterbatch in plastics:

1. Application in thermoplastics The traditional method of toughening plastics is inRubber substances are added to the matrix, although this method greatly increases the toughness of the material.However, at the same time, the strength and processing performance of the material are also greatly reduced.The toughening principle of fumed silica toughened plastics is the toughening of inorganic rigid particles,When added to plastics, it can be increased without weakening the material's rigidity

The toughness of the material can even improve the rigidity of the material.

2. Application in thermosetting plastics Add fumed silica to epoxy resinIt can significantly improve its brittleness and overcome the rigidity of the material caused by the toughening of the elastomerAnd the defect of strength reduction, to achieve the purpose of strengthening and toughening.

3. As a flame retardant additive due to the physical properties of fumed silica in the condensed phaseThe process increases the strength of the carbon-silicon layer, enabling it to resist the heat and matter in the combustiontransmission. By adding fumed silica to EVA/MH blends and reducingThe total filling amount, under the condition of the same flame retardant performance, the elongation at break can be doubled.

The role of silica masterbatch:

1. Improve the surface properties: the uni of the product;

2. Improve wear resistance and scratch resistance: endow the product with new functions;

3. Will not affect printing and coating: enhance the value of the product;

4. Improve die performance and extrusion volume: increase output;

5. Reduce internal stress, low warpage, and reduce weld line problems: reduce defective rate;

6. Reduce processing temperature and processing pressure: save energy;

7. Give the material slippery, suitable for high-speed, heavy-load occasions: improve product resistance;

8. Internal lubrication: lower friction and easier demoulding.