EVA foam, also known as Ethylene-Vinyl Acetate foam, is a type of synthetic material that is made from a copolymer of ethylene and vinyl acetate. It is created through a process called polymerization. Where the monomers of ethylene and vinyl acetate are chemically combined to form a polymer chain.
Ethylene, which is derived from petroleum or natural gas, is a hydrocarbon gas. Vinyl acetate is a colorless liquid that is produced by reacting acetic acid with ethylene.
During the manufacturing process, the ethylene and vinyl acetate monomers are mixed together and subjected to heat and pressure. A catalyst is added to initiate the polymerization reaction. Causing the monomers to bond together and form a solid foam structure.
The resulting material, EVA foam, has a cellular structure with numerous air-filled pockets. This structure gives EVA foam its characteristic lightweight and cushioning properties. The ratio of ethylene to vinyl acetate in the copolymer can vary, allowing for customization of the foam’s properties such as density, flexibility, and hardness.
EVA foam is a popular choice for various applications due to its versatility, durability, and easy processability. It can be molded, cut, and shaped into different forms, making it suitable for a wide range of products across industries.
Related product links: https://www.eva-block.com/product/dual-laminates-eva-foam-block/.