Term: Additives

Category: Chemistry

Definition: Additives are added into the formulations of polymers, coatings, and other materials. They are used to enhance or alter certain characteristics while not being a primary structural component. These additives can enhance or modify things like the mechanical strength, thermal stability, UV protection, color, lubricity, biocompatibility, and antimicrobial properties of those materials.

A few examples of the types of additives that are commonly used are plasticizers, stabilizers, fillers, antioxidants, surfactants, and anti-thrombogenic agents.

Additives are especially important for achieving desired performance, functionality, and durability in industrial and biomedical applications.

Uses:

• Enhancing the mechanical, thermal, or chemical resistance of polymers and coatings
• Improving lubricity and friction reduction in hydrophilic coatings and hydrophilic medical coatings
• Providing antimicrobial or anti-thrombogenic properties in biomedical devices
• Optimizing processing, curing, and shelf-life of industrial and pharmaceutical formulations

Related Content and Resources: 

Hydrophilic Coating Polymers and Chemistries: Complete Guide