At Ningbo Inno Pharmchem Co., Ltd., we understand that the performance of your products hinges on the quality and consistency of the raw materials you use. For Carbon Black G285, a critical component in numerous demanding applications, rigorous quality assurance is not just a process, but a core commitment. This article outlines the key quality parameters and control measures we implement to ensure that our Carbon Black G285 consistently meets the highest industry standards.

The quality of Carbon Black G285 is primarily defined by a set of specific physical and chemical properties that directly influence its performance as a reinforcing filler, pigment, and conductive additive. These parameters are meticulously monitored throughout the production and supply chain.

Key Quality Parameters for Carbon Black G285:

  • Iodine Absorption Number: This measures the surface area of the carbon black particles. A higher iodine number typically indicates a larger surface area, which is directly correlated with better reinforcing capabilities and higher conductivity. We ensure our G285 grade meets the specified iodine absorption range for optimal performance in rubber reinforcement.
  • DBP Absorption Number: Dioxyl dibutyl phthalate (DBP) absorption indicates the structure or particle aggregation of the carbon black. A higher DBP absorption value suggests a more complex aggregate structure, which can influence processing viscosity and the final mechanical properties of the compound. Consistency in DBP absorption is vital for predictable processing.
  • CTAB Surface Area: Cetyltrimethylammonium bromide (CTAB) is another method for measuring the surface area, often providing a different perspective on particle accessibility. Ensuring our G285 grade meets its specified CTAB surface area is crucial for applications where precise surface interaction is key.
  • Tint Strength: For pigmentary applications, tint strength is paramount. It quantifies the ability of the carbon black to impart color. Our quality control processes ensure that our G285 grade provides the expected deep black color and high tinting strength for paints, coatings, and inks.
  • Ash Content: This measures the amount of inorganic impurities present. High ash content can negatively affect the performance of carbon black, particularly its electrical conductivity and cleanliness. We maintain very low ash content levels in our G285 grade.
  • Moisture Content: Excessive moisture can lead to processing issues and affect the dispersion of carbon black. Our packaging and storage protocols are designed to keep moisture levels to a minimum.

Our quality assurance program involves regular batch testing using advanced laboratory equipment that adheres to international standards. Certificates of Analysis (COA) are provided with each shipment, detailing the specific test results for the batch supplied, confirming adherence to specifications. This transparency allows our customers to have full confidence in the material they receive.

Ningbo Inno Pharmchem Co., Ltd. works closely with its manufacturing partners to uphold these stringent quality standards. By focusing on these critical parameters, we ensure that Carbon Black G285 consistently delivers the reliable performance our customers expect, empowering them to create superior products.