CT® Talc for Wood Composites
CT® Talc products are valuable components in wood fiber-polymer composites, such as decking, baseboards, and wood trim. They are hydrophobic and help disperse the wood fiber in the polymer matrix, commonly HDPE. The incorporation of talc acts as a processing aid, reducing energy consumption during extrusion. When added to the composite body, it enhances mechanical properties such as tensile strength, bending strength, and dynamic modulus. Talc-filled HDPE exhibits lower linear coefficients of thermal expansion (LCTE) compared to neat HDPE, providing dimensional stability and reducing warpage due to solar radiation. Additionally, CT® Talc products can be used in a shell layer that covers the wood composite body.