Fillers

Fillers are additives used in plastics to enhance their physical, mechanical, and thermal properties. They typically have a granular or powdery appearance and function by modifying the polymer matrix to improve strength, rigidity, and heat resistance. Key features of fillers include increased tensile strength, reduced shrinkage, and improved dimensional stability. Used in automotive parts, construction materials, and consumer goods. 

Alternatives to fillers include reinforcements and plasticizers. A notable trend in the industry is the growing use of nanofillers, such as nanoclays and carbon nanotubes. Common examples of fillers include calcium carbonate, talc, glass fibers, mineral fillers, organic fillers, and functional fillers.