elastilises

Elastilises is a term encountered in polymer science and materials engineering to describe substances or treatment methods intended to increase the elasticity of polymer materials. The word is not universally standardized, and its precise meaning can vary between sources, occurring in both technical literature and industry marketing.

In practice, elastilises often refer to plasticizers, elastomeric modifiers, or processing additives that reduce glass transition temperature (Tg) and promote greater chain mobility. They may be low‑molecular‑weight esters, oligomeric species, or reactive modifiers that become part of the polymer network. Mechanistically, elastilisers act by weakening intermolecular forces, inserting flexible segments between rigid chains, or by adjusting crosslink density to yield a softer, more extensible material.

Applications of elastilises include flexible coatings, films, adhesives, sealants, and certain plastics such as polyvinyl chloride (PVC) and polyurethane systems. They are often selected to balance properties such as tear resistance, compression set, and environmental resistance, while maintaining processability during extrusion, casting, or molding.

Safety and regulatory considerations vary with the specific elastiliser. Some traditional plasticizers have raised concerns about migration, leaching, or environmental persistence, leading to restrictions in consumer products. Modern elastiliser formulations emphasize low migration, recyclability, and compliance with chemical safety regulations.

Terminology around elastilises is heterogeneous; some sources use the term broadly for any additive that enhances elasticity, while others reserve it for specialized modifiers or processing routes. The concept is closely related to plasticization, compatibilization, and elastomer technology, and continues to evolve as new materials are developed.