Amut Group of Novara, Italy said its extrusion foil line can make ethylene-vinyl-acetate (EVA) foil, for the production of solar panels.
In the application, EVA foil protests the photovoltaic cell, encapsulating and wrapping the silicon cells, giving a food sealing and high adherence with the outer glass sheet, with the back sheet of the lower layer, Amut said.
The Amut production line is specifically designed for the solar cell application, to not compromise the foil's dimensional stability. The gravimetric dosing and extrusion/die units can process both liquid and solid additives, assuring an optimal melting of the polymers so the foil has the necessary resistance to ultraviolet rats, avoiding yellowing, which can cut efficiency in energy production. The extrusion process does not have a cross-linking action.
The calender has three rolls with special surface finish to handle EVA and avoid the stickiness of the foil on the rolls. The calender, with independent drives, has an additional specialty stabilization unit systems. The winder can wind up the foil directly in-line a separating film sheet or a silicone foil paper foil to protect the EVA foil. You also can emboss on one side of the sheet, so it adheres with the glass sheet as the solar cells are manufactured.
Tel. 011 39 0321 6641. www.amut.it.