Last Updated on April 28, 2024 by Ali Hamza
Carbon black is the primary component of rubber and therefore contributes to the physical characteristics of the final product. It can be mixed with other petroleum-based substances to create rubber or be used as a binding agent between two separate rubber sheets. Given that carbon black for rubber is so important, here are the top things you should keep in mind before diving into this material.
Carbon black for rubber is a general term for a binding agent made from carbon black and other petroleum-based substances. It can be used to bind sheets of rubber together, as well as to mix with other petroleum-based substances to create rubber.
The primary purpose of carbon black for rubber is to provide the essential properties that allow the rubber to be used in a product. Therefore the properties of this material must be considered before quilting with it or purchasing it online.
The most important qualities of carbon black for rubber are its performance properties, as well as its physical properties.
The four performance properties of carbon black for rubber are black colour, oil absorption, tensile strength and elongation at break. The four physical properties include particle size distribution, particle morphology, electrical conductivity and surface area.
The particle size distribution and particle morphology (or surface area) of carbon black for rubber significantly affect the final product’s performance and physical characteristics.
The particle size distribution measures the number and size of particles in a given sample. In contrast, particle morphology is represented by the shape and structure of those very same particles.
Particle size distributions typically fall between 0.5 and 10 micrometres, with a standard deviation (a measure that assesses how far values are spread out from the mean) between 0.2-0.8 micrometres for most samples.
The average particles in carbon black for the rubber sample are between 7 and 10 micrometres. The mean particle size is approximately as large as the standard deviation, indicating that one in every ten particles should be larger than 10 microns.
Particle morphology, or surface area, can be measured by taking the cross-sectional area of a carbon black rubber sample and multiplying it by the number of particles in that sample. This process yields an average surface area measurement of 200 and 250 square metres per gram.
The average surface area of particles in a sample of the carbon black for rubber is greater than that of the material itself, which indicates that the particles are highly porous.
Electrical conductivity is the ability to conduct electricity through a sample, indicating how much heat energy can be transferred. Carbon black for rubber samples typically has electrical conductivity between 4500 and 7000 micro siemens per centimetre when measured at 25 degrees Celsius (room temperature).
The electrical conductivity of carbon black for rubber can be compared to the electrical conductivity of an electrical wire; therefore, it is a very useful measurement.
Carbon black for rubber can also be measured in terms of surface area per unit length, which measures the surface area within a given unit length. The surface area per unit length is typically between 600 and 800 square metres per centimetre.
The surface area per unit length of carbon black for rubber is another measurement that helps to assess the physical properties of the material.
The tensile strength and elongation at break are two properties of carbon black for rubber that help determine how flexible it will be when used in a product.
Tensile strength is measured by the amount of pressure it takes to break a sample. It typically ranges from between 10-20 tons per millimetre in width.
Elongation at break is the measurement of how much a sample can be pulled before breaking. It typically ranges between 100-200%.
The tensile strength and elongation at break measurements are important indicators of how strong and stretchable carbon black rubber samples are likely to be when combined with other rubber materials.
Rubber is created by combining carbon black for rubber samples with other petroleum-based substances. The properties of these common rubber materials are important to keep in mind, as they can interact with one another and affect the final product.
To create a rubber product that combines the performance of two or more different rubber materials, the different performance properties of each material must be considered when designing the product.
The common rubber materials used in a composite rubber product are natural rubber and latex rubber. Natural rubbers typically have high tensile strength and elongation at break values, which is why it is often paired with other materials that have high tensile strength and elongation at break values as well.
Natural or synthetic rubber is a petroleum-based material used to create products like car tires, medical gloves, kid’s shoe soles and more. Modern rubber is made from the fossilised remains of these organisms.
Natural or synthetic rubber typically has greater tensile strength and elongation at break values than carbon black for rubber; therefore, it is paired with that material in many composite products.
The electrical conductivity of natural rubber is relatively low, which means it will absorb a lot of heat if exposed to dry or warm environments.
Natural rubber also has a lower tensile strength and elongation at break value than carbon black rubber; therefore, it can be used in combination with that material in many products that require the highest physical properties possible.
Carbon black for rubber is an excellent additive to latex rubber since this material provides positive impacts on the performance and physical characteristics of the final product.
Latex rubber is a petroleum-based material that is made from a byproduct of the manufacturing process for natural rubber. It has high tensile strength and elongation at break values when combined with carbon black for rubber because of its high tensile strength and elongation at break values.
Latex rubber typically has a lower electrical conductivity value than natural rubber, which makes it more desirable when paired with that material in many composite products.
Using carbon black for rubber can help to increase the flexibility of the final product. When carbon black is used in conjunction with an elastomer, the electrical conductivity of that material can be increased without a decrease in tensile strength or elongation at break values.
Carbon black is a safe material to add to many different rubbers because it does not cause harmful carcinogenic effects, and it also helps to prevent the rubber from burning when exposed to as much as 1000 degrees Celsius temperatures.
Conclusion
Carbon black for rubber samples has become a common additive to many different types of rubber materials, including natural and synthetic rubbers. Applying the properties of mechanical rubber goods into a composite product can increase tensile strength and elongation at break values while also improving the flexibility and electrical conductivity of the final product.
