How to solve uneven dispersion of Conductive Carbon Black ?

-

 

The particles of carbon black itself are very easy to aggregate into larger particles, which are difficult to stably disperse in the water-based system. According to the characteristics of carbon black, it is poorly dispersed and difficult to disperse. Conductive Carbon Black supplier in China.

Therefore, the solution to the dispersion problem of carbon black is to use carbon black The premise of black, especially when using carbon black, more attention should be paid to the dispersion problem.

What are the factors affecting the dispersion of conductive speciality carbon black?

The physical properties of carbon black itself, dispersants, and dispersing equipment, especially when using carbon black for coloring, uneven dispersion of carbon black powder will lead to serious consequences, directly affecting the hue, blackness and hiding power of the product. Of course, when using carbon black, it is also necessary to pay attention to the dispersion of conductive carbon black.

Influence of uneven dispersion of conductive carbon on products

When using carbon black to increase conductivity, poor dispersion of conductive carbon black will lead to the following consequences: unstable conductivity, poor conductivity, and substandard quality such as fracture.

Solution for uneven dispersion of conductive carbon black

1. Purchase high-quality conductive carbon black and require a certain dispersibility. Generally, powdered conductive carbon black has better dispersibility than granular conductive carbon black, and powdered carbon black can be purchased.

2. Add the correct carbon black dispersant, the carbon black dispersant is also different, you can choose the corresponding carbon black dispersant product according to the adsorption group of carbon black.

3. Replace the carbon black dispersion equipment. The type of dispersion equipment will also have a certain impact on the dispersion of carbon black. Like a grinder, different ink grinding machines have different effects on grinding ink carbon black. Choose a more suitable ink grinding equipment is very important.

China conductive carbon black supplier -Beilum Carbon

Beilum Carbon Chemical Limited

T: +86 (0) 632 8992979 | F: +86 (0) 632 8992936

E: bc@beilum.com   

W: https://www.beilum.com | www.beilumcarbon.com

Comments

Post a Comment

Popular posts from this blog

What is the reinforcing mechanism of Carbon Black? Best price of Beilum Carbon Black in China

-
Image
  The reinforcing effect of carbon black is mainly that the addition of carbon black changes the structure of the rubber and produces a C-phase structure. In vulcanized rubber, if the carbon black is well dispersed, and a C-phase structure is formed on the surface of each carbon black particle , Phase C plays a skeleton role to connect phase A and phase B. Forming an overall network of rubber macromolecules and fillers, changing the structure of the vulcanized rubber, thus improving the physical and mechanical properties of the vulcanized rubber. Reinforcement mechanism of  carbon black  Surface adsorption layer theory This theory believes that Black carbon and rubber generate a microscopic multi-phase inhomogeneous structure, which is a reinforcing mechanism of composite materials. Nuclear magnetic resonance studies have confirmed that there is an adsorption layer composed of two types of rubber macromolecules on the surface of carbon black. The inner layer of about 0.5nm close to the
Read more

What index of conductive carbon black has good electrical conductivity? - Beilum Carbon

-
Image
  Judging the conductivity of  conductive carbon black  through the oil absorption value index Oil absorption value (DBP) is commonly used to express structural properties. The greater the DBP value, the higher the structural properties. The physical properties and conductivity of conductive carbon black depend on the volume and microporosity of these aggregates. The greater the oil absorption value of  conductive carbon black  DBP, the easier it is to form aggregates with a large number of particles and complex structures, and the more aggregates there are per unit mass. Therefore, under certain conditions, the greater the DBP oil absorption of carbon black, the stronger its conductivity. Based on the particles that make up the basic aggregates and morphology of carbon black, high-structured carbon black aggregates have large, polymeric particles. This branching increases the contact between aggregates, which can lead to high conductive properties. Judging the conductivity of carbon b
Read more