Photovoltaic plastic panel edge grinding method

How to remove resin from glass in silicon-based PV panel recycling?

As mentioned above, the most extensively studied methods for the removal of resin from glass in silicon-based PV panel recycling involve heating or chemical additives , , . However, we developed a mechanical separation technology to rapidly effect the separation with low environmental load and low energy consumption.

What is a silicon based PV panel?

Most silicon-based PV panels have a three-layer structure consisting of flat glass, a cell sealed with ethylene–vinyl acetate (EVA), and a back-sheet made of a multi-layer film comprising polyvinyl fluoride (PVF), polyethylene terephthalate (PET), polyethylene (PE) , and other components.

Does temperature affect the peeling rate of PV module glass?

The experimental results show that temperature has a promotion effect on the glass peeling rate. An ultrasonic field also facilitates the separation of different layers, and the solid/liquid ratio has less effect on the peeling rate of the PV module glass. 3.4. Mechanism of the layer separation using EGDA

Can Egda be used as a separation reagent for waste PV modules?

Based on the above study, a new method for recycling waste PV modules using EGDA as a separation reagent was proposed. As shown in Fig. 10c, the aluminum frame and junction box are removed mechanically in advance, and then the backsheet is removed by physical methods like an edge milling machine used.

Can Egda be used to separate glass-Eva in photovoltaic modules?

Non-toxic reagent EGDA was used to separate the glass-EVA in photovoltaic modules for the first time. The glass in 20 mm × 20 mm photovoltaic pieces can be separated adequately in 3 h. EGDA can be recycled by filtration to be reused. Solar cells can keep their initial size due to the moderate swelling ability of EGDA.

What is the wettability of Egda reagent on PV glass?

Therefore, the wettability of the medium on glass is an important factor. The PV glass used in this experiment has one side with a rough surface and the other side with a smooth surface. In Fig. 8 a and b, the contact angle of the EGDA reagent on the rough surface of the glass is about 12.2° and on the smooth surface is about 44.9°.