Brittleness usually occurs when talc powder is improperly selected or poorly dispersed in the polymer matrix. Excessive loading, large particle size, or insufficient surface treatment can disrupt polymer chain mobility, leading to reduced impact resistance. Poor compatibility between filler and resin also increases stress concentration points.

At Xufeng New Materials, this issue is addressed through optimized particle engineering and functional filler masterbatch solutions. By improving dispersion and interfacial compatibility, the talc is evenly distributed within the polymer, minimizing weak points. Additionally, combining talc with calcium carbonate in balanced ratios helps maintain rigidity while preserving toughness, especially in PP and PE modification systems used in automotive and packaging industries.