Fundamental properties of Carbon Black that MASKA GLOBAL used to produce Black Masterbatch

Black Masterbatch is widely used in plastic industry for many economic benefits. Black Masterbatch is the compound of carbon blacks, carrier resin and some additives. Normally, it is used for coloration, reducing production costs and performance.

So to have a good black Masterbatch product, what is the properties needed of Carbon Black pigment? What materials do we use at MASKA GLOBAL to ensure the best quality with the most reasonable price of Black Masterbatch?

Our extensive range of black masterbatch products has been developed for a broad range of product specifications with so high quality of Carbon Black.

1. Fundamental Properties Of Carbon Black

A carbon black’s application performance is determined by its fundamental properties and the level of dispersion achieved. The most important physical and chemical properties include particle size, porosity, structure, and surface chemistry. The level of dispersion in any given matrix is strongly influenced by the mixing equipment, formulation (including dispersant selection), and physical form.

1.1 Particle Size is the primary influence on color properties.

Particle size is measured by electron microscopy (EM). Mean particle size is certified via statistical thickness surface area (STSA) correlation according to ASTM D3849-14. Smaller particle diameter gives rise to higher surface area and tinting strength. High surface area is usually associated with greater jetness, higher conductivity, improved weatherability, and higher viscosity, but requires increased dispersion energy.

1.2 Structure :

is a measure of the three-dimensional fusion of carbon black particles to form aggregates. Highly structured carbon blacks provide higher viscosity, greater electrical conductivity and easier dispersion. Measures of aggregate structure may be obtained from shape distributions from EM analysis, oil absorption (OAN) or void volume analysis.

1.3 Porosity

is indicated by comparing a carbon black’s external surface area predicted by STSA to the total surface area value obtained with the BET NSA method. Conductive carbon blacks tend to have a high degree of porosity.

1.4 Surface Chemistry

Chemistry of carbon blacks generally refers to the oxygen-containing groups present on a carbon black’s surface. Oxidized surfaces improve pigment wetting, dispersion, rheology, and overall performance in selected systems. In other cases, oxidation increases electrical resistivity and makes carbon blacks more hydrophilic. The extent of surface oxidation is measured by determining the quantity of the “volatile” component on the carbon black. High volatile levels are associated with low pH.

1.5 Physical Form

is important in matching a carbon black to the equipment by which it is to be dispersed. Powdered carbon blacks are recommended in low-shear dispersers and on three-roll mills. Beaded carbon blacks are recommended for shot mills, ball mills and other high energy equipment. Beading provides lower dusting, bulk handling capabilities, and higher bulk densities, while powdered carbon blacks offer improved dispersibility.

PROPERTY	INFLUENCE OF PROPERTY ON PERFORMANCE
Particle Size Distribution	Smaller Particle Size (Higher Surface Area) • Increases Jetness • Increases Tint • Increases UV Protection • Increases Electrical Conductivity • Increases Vehicle Demand and Viscosity • Reduces Dispersibility
Structure – Aggregate Size/ Shape Distribution	Higher Structure (Increasing Oil Absorption) • Reduces Jetness and Tint • Improves Dispersibility • Increases Vehicle Demand and Viscosity • Increases Electrical Conductivity
Porosity – Pore Size Distribution	Higher Porosity (Higher Ratio of NSA/STSA) • Increases Vehicle Demand and Viscosity • Increases Electrical Conductivity • Enables Reduced Loadings in Conductive Applications
Surface Chemistry – Surface Functionality Distribution	Higher Surface Functionality (Higher Volatile Content) • Improves Vehicle Wetting • Reduces Viscosity of Liquid Systems • Lowers Electrical Conductivity
Additional Properties: • Other Constituents – Sulfur, Ash, Residue, etc. • Physical Form – Beads or Powder

2. Application of Black Masterbatch

By Used Specialty Carbon black, Black masterbatch is used in a wide variety of application plastic. We are pioneers in providing a superlative spectrum of highly loaded Black masterbatch. By employing varied types and grades of carbon, we can offer diverse grades of black masterbatch. US BLACK MASTERBATCH play a role in such key markets as agricultural, packaging, electronics, textiles and nonwovens, wire & cable, automotive and toys. Further, our R&D experts continuously inspect and update the existing range, as per the changing trends in the market. MASKA GLOBAL are available with base carier PE, PP based on the end use application.

Automotive Compounding
Injection Molding, Blow Molding & Roto molded tanks
Cable sheathing compounds
Non specification pipes, drainage pipes, conduits
P type for pressure pipes
Specification pipes including laterals for drip irrigation, conduits, compounding
Films including garbage bags
Mulch Films & Geo Textiles
Lamination applications with higher MFI
PP Non Woven bags
For Bio-degradable application