Barium Sulfate Polymer for X-ray Shielding BOPET Film

Semi-dull Barium Sulfate Polyester Chip

The Barium Sulfate Polyester Chip is a masterbatch product that incorporates barium sulfate powder into a polyester matrix. Barium sulfate is an inorganic compound with the chemical formula BaSO4, known for its high density, chemical stability, and low solubility in water. Polyester, on the other hand, is a widely used polymer known for its excellent mechanical properties, chemical resistance, and versatility.
By combining these two materials, the Barium Sulfate Polyester Polymer offers a unique set of properties that make it suitable for a wide range of applications. Currently, it is mainly used for PET film production.


Enhanced mechanical properties: The incorporation of barium sulfate into the polyester matrix improves the overall mechanical properties of the material, such as tensile strength, impact resistance, and dimensional stability.

Chemical resistance: The combination of barium sulfate and polyester results in a material with excellent resistance to chemicals, making it suitable for applications in harsh environments.

X-ray shielding: Barium sulfate is known for its ability to absorb X-rays, making the Barium Sulfate Polyester Chip an effective shielding material for applications requiring protection from X-ray radiation.

Improved thermal stability: The presence of barium sulfate in the polyester matrix enhances the material’s thermal stability, allowing it to withstand higher temperatures without significant degradation.

Environmental friendliness: It is an eco-friendly material, as it is free from heavy metals and other hazardous substances.


Intrinsic viscosity dl/g              0.436
Barium content (Baso4) %              21.26
COOH Group Meg/kg               18
Melting Point             251±2
Color Value            L             74.40
           b              8.20
           a            -2.55
Barium Powder Size μm              1.5
DEG Content wt%         1.40 max