EVA polyethylene, or ethylene vinyl acetate, is a copolymer made of polyethylene and vinyl acetate, which is as soft and flexible as elastomeric materials, and chemically similar to polyethylene (most of which have the property of being flexible). They have increased durability and impact resistance (and are similar in processing capabilities to thermoplastic materials).
Among the practical and characteristics of this odorless material, we can mention high transparency, resistance to brittleness, resistance to ultraviolet radiation, good prevention against gas penetration, very good melt adhesion properties, etc.
What is EVA polyethylene ?
Polyethylene is a waxy, inert, lightweight, transparent, flexible solid, as well as a polymeric material composed of single ethylene units. It is made of thermoplastic materials, which means that it reaches a solid state by reaching its freezing point and becomes a liquid state by reaching its melting point. This substance is through polymerization of ethylene gas (C2H4) or in other words through chemical synthesis. Ethylene is formed from a combination of crude oil and natural gases.
Polyethylene is usually based on density (polymer chain size, type and number of branches in the chain) into three categories: heavy polyethylene (with branched polymer chains), lightweight polyethylene (with branched chains), linear polyethylene (a polymer). The line is divided by a number of short branches.
Types of EVA polyethylene ?
EVA polyethylene is usually based on the percentage of weight of vinyl acetate they have in three categories: polyethylene modified with vinyl acetate (a type of polyethylene containing 4% vinyl acetate), thermoplastic elastomer (copolymers containing 4 to 30% vinyl acetate) and ethylene vinyl acetate. (With more than 40% vinyl acetate) are classified.
EVA polyethylene application ?
EVA polyethylene in the production of plastic pipes and plumbing fittings for sewerage and oil networks, in the production of plastic containers and bags, in the production of some interior parts of the car room, in the production of bottles and plastic parts for home appliances and toys, in the production of electric cables and Telecommunications (cable protector, veneer, cable insulation, etc.) in adhesives, all kinds of shoes, helmets, sports equipment, for storing medicines and all kinds of medical plastic supplies, as moisture insulation in greenhouses, in fishing equipment, flexible hoses, They use pistons, handles, etc.