Trilaminat

Trilaminat, or trilaminate, is a composite material made of three layers that are bonded together by lamination. The layers can be of the same material or of different materials, chosen to combine properties such as strength, stiffness, barrier performance, or surface durability. The middle layer often provides structural rigidity or functional performance, while the outer layers supply surface finish and protection.

Manufacturing typically involves aligning the layers with an adhesive and subjecting the stack to heat and pressure in a laminating process. Depending on the materials, curing and pressing conditions vary. Variants can include wood-based trilaminates (three-ply veneer assemblies or three-layer panels), plastic or film trilaminates (a core layer with outer skins), and laminated glass (three glass sheets separated by interlayers such as PVB or ionomer).

Properties of trilaminates include increased stiffness and strength, improved dimensional stability, and enhanced barrier, thermal, or acoustic performance. In the case of laminated glass, safety and redundancy are key advantages. Drawbacks can include higher manufacturing costs, more complex processing, and challenges related to recycling at end of life.

Applications span construction and furniture, flooring and countertops, automotive components, packaging, and safety glazing or architectural glass. The concept of trilaminates is used across materials science to denote three-layer laminates that tailor specific performance attributes by combining different materials in a single composite structure. See also laminate, plywood, laminated glass, and composite material.