EVA (Ethylene Vinyl Acetat)

Ethylene Vinyl Acetat copolymer (EVA) copolymer, it's produced in combination of VAM and Polyethylene in LDPE tubular otoclav process. VAM percantage varies  between %2 and %40. 
 
EVA is an elastomeric material who has soft, flexible, transparent and glossy appearance. It's toughness and cracking resistance against high pressure is good under low temperatures. . 
 
Characteristics ;
 
As VAM content increase in EVA; 
• More Transparency 
• Higher density
• Better impact and tear resistance 
• Gets softer and more elasticiity  
• Lower melt point 
• More crosss linking capability.
• Better permeability
• Higher polarization
• Better ESCR 
 
Applications
 
Flexible pipes and profiles, food blow applications, solar cell encapsulation, cable, shoe sole, building and protective foams, hot-melt glues, agricultural films, otomotive parts, cases, color concantrates, shrink films.

 

EVA (Etilen Vinil Asetat)

Injection Parameters

ABBREVIATION PRODUCT TYPE DENSITY (g/cm3) MOULD SHRINKAGE (%) MOULD TEMPERATURE (°C) PRE DRYING TEMPERATURE (°C) PRE DRYING TIME (CLOCK) NOZZLE (°C) 3. ZONE (°C) 2. ZONE (°C) 1. ZONE (°C)
EVA Etilen Vinil Asetat 0,93-0,96 1,2-2,2 40-70 85-95 2-4 240-260 245-265 240-260 230-250