carbon black pigment chemical structure and alternatives

In this article, we want to be more familiar with carbon black pigment and its chemical structure in the first part and its alternatives in the second part.

carbon black pigment chemical structure

Carbon black is used in many cases as a pigment and has a unique chemical structure. Carbon black, sometimes known as CB, is a filler used in manufacturing almost all rubber compounds and performs several functions, including strengthening and thickening the material, increasing the volume, boosting the rubber's physical properties, dyeing, and facilitating the vulcanization process. The results of the rubber compound have the potential to be advantageous in a variety of industrial applications, including the production of shoe soles, gloves, and tires for motorized vehicles, among others. It is a kind of pigment that serves as a wear-resistant additive and serves as both a colorant and filler for strengthening the rubber in tires and other rubber products. Moreover, it is used as a pigment in paints, plastics, and ink. Carbon Black is an almost-pure form of elemental carbon that is almost invisible. Either the incomplete combustion of gaseous or liquid hydrocarbons or the controlled thermal decomposition of these substances may result in the formation of this byproduct. These procedures must be strictly governed. When seen one way, it resembles finely split black powder, and when viewed another way, it resembles a pellet. Due to its particular surface area, particle size and structure, conductivity, and color, it is used in a vast array of items, including tires, rubber and plastic goods, printing inks, and coatings. Carbon black is regularly one of the top 50 industrial chemicals produced in terms of tons. This ranking is determined by the amount of carbon black produced annually. Currently, the global yearly output is roughly 8.1 million tons, which is equal to 18 billion pounds. Roughly ninety percent of carbon black is used in rubber applications, nine percent as a pigment, and the remaining one percent as an essential component in thousands of other goods. Carbon black surfaces are made of many functional groups, including carbon-oxygen surface groups, carbon-hydrogen surface groups, carbon-nitrogen moieties, and carbon-halogen surface compounds. Carbon-oxygen surface groups are the most significant of these groups, although carbon-hydrogen surface groups are also present on the molecule's surface. One of its main characteristics is its conductivity. Electrical conductivity is a physical attribute that describes the extent to which a substance can conduct electric current. It decides whether a substance may be used as an electrical insulator or conductor. Additionally, it is used in the identification of compounds

Charge carriers in continual motion constitute the electric current. It is caused by a voltage difference between the two poles. At a given voltage, the material between the poles influences the intensity of the electric current.

Carbon Black pigment Alternatives

A few individuals are considering alternatives to carbon black for a variety of reasons, including cost and recycling concerns. There are numerous of them, and some of them exhibit the following characteristics:

-Reduce the viscosity of the material to make it simpler to process; this will also increase the flow of the material inside molds and extrusion rates

-Preserve the material's mechanical qualities, including its elongation at break, modulus, and resistance to tearing and cutting

-Reduce the quantity of plasticizer that evaporates, and the material's resistance to shifting temperatures and the elements will increase

-Establish a barrier that will hinder gas movement while simultaneously decreasing the material's permeability

- Carbon black dispersion improvement and electricity conductivity reduction

However, We must keep in mind that the following minerals are not a complete substitute for carbon black pigment and can only partially replace it. Sometimes due to their harmful effects, caution must be taken into account:

Talc: Talc, often known as talcum, is a kind of clay mineral composed of hydrated magnesium silicate and has the chemical formula Mg3Si4O10(OH)2. As a baby powder, talc is commonly available in powdered form and frequently blended with corn starch.

Kaolin: is a kind of clay that is white, pliable, and suitable for a variety of purposes. The mineral kaolinite constitutes the bulk of its makeup (aluminum silicate).

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