Laminated polyester film as protective material for rear surface of solar cell
A technology of solar cells and laminated polyester films, which can be used in electronic equipment, applications, coatings, etc., can solve the problems of water resistance-poor adhesion, insufficient adhesion maintenance, etc., and achieve excellent hydrolysis resistance and excellent water resistance - Adhesiveness and high utility value
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0158] The polyester in which the above-mentioned polyester (2) and polyester (4) were mixed in a weight ratio of 70:30 was set as the raw material for the polyester A layer, and the polyester ( 2) The polyester with white pigment masterbatch 1 (WMB1) is set as the raw material for the polyester B layer. Put these raw materials into two twin-screw extruders with ventilation holes, melt and extrude them at 290°C, and merge them with a multi-branched pipe die to achieve a layer structure ratio of A / B=2 / 3. After layering, quenching and solidification was carried out on a casting drum whose surface temperature was set to 40° C. using an electrostatic application adhesion method to obtain an unstretched sheet. The longest residence time during this melt extrusion was 12 minutes. The obtained sheet was stretched 3.6 times in the longitudinal direction at 85° C. by a roll stretching method. Wherein, after the corona discharge treatment is carried out on the surface of the polyester...
Embodiment 2
[0160] In Example 1, as a raw material, a polyester mixed with polyester (2) and polyester (4) in a weight ratio of 70:30 was used as a raw material for the polyester A layer, and a polyester layer was used in a weight ratio of 70:30 Polyester mixed with polyester (2) and white pigment masterbatch 2 (WMB2) was set as the raw material for polyester B layer. Each of these raw materials was put into two twin-screw extruders with ventilation holes, melted and extruded at 290°C, and multi-branched pipes were used to achieve a layer structure ratio of A / B / A=3 / 44 / 3. After the dies were merged and laminated, they were rapidly cooled and solidified on a casting drum whose surface temperature was set to 40° C. using an electrostatic adhesion method to obtain an unstretched sheet. The longest residence time during this melt extrusion was 14 minutes. The obtained sheet was stretched 3.6 times in the longitudinal direction at 85° C. by a roll stretching method. Here, after the corona dis...
Embodiment 3
[0162] In Example 2, as a raw material, the polyester mixed with polyester (2), polyester (4) and white pigment masterbatch 2 (WMB2) at a weight ratio of 56:30:14 was changed to polyester A layer A film having a thickness of 50 μm was obtained in exactly the same manner as in Example 2 except that the raw materials were used. The longest residence time during this melt extrusion was 14 minutes. Table 3 shows the characteristics and evaluation results of the film.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More