Material additives are a class of auxiliary substances used to improve the processing performance, physical and mechanical properties, or to endow materials with specific functions. They are widely used in polymer and composite material systems such as plastics, rubber, mortar, concrete, and coatings.
Functional Diversity: There are many types of additives, each typically targeting specific performance needs (such as enhancing toughness, improving weather resistance, and improving flowability), and they often need to be used in combination to achieve synergistic effects.
Small Addition Amounts but Significant Effects: Most additives only need to be added at a few thousandths to a few percent of the material's mass to significantly improve performance, hence the nickname "industrial MSG."
Diverse Physical Forms: Additives include solids (such as powders and granules), liquids, or pastes, making them suitable for various processing techniques.
No Damage to the Main Structure: Additives are uniformly dispersed in the material and generally do not change the chemical nature of the matrix material, exerting their effects only through physical action or surface modification.
