What is pp hollow board extrusion line?

GWELL, as China Plastic Extruder Supplier, PP Hollow Board Extrusion Line adopts PP hollow special single-screw extruder and double extruder for co-extrusion. Because PP hollow board is divided into white and black PP hollow board. Sometimes the middle of the board will be white. So China GWELL will use two extruders.

Are co-extruded backsheets based on pp suitable for PV modules?

Summarized, co-extruded backsheets based on PP show great potential to be a valid replacement of standard PET based backsheets in PV modules. On the one hand, the PP backsheet so far proved excellent stability, exhibiting no severe material degradation after extended exposure to temperature, humidity and irradiation.

Why do PP materials have a hollow structure?

The hollow structure of HGBs aids in reducing heat conduction, thereby lowering the thermal conductivity of the material. ZnO, known for its high near-infrared emissivity, is incorporated into PP materials in the form of sea urchin-like HGBs.

What is a polymer based photovoltaic element?

The development of organic, polymer-based photovoltaic elements has introduced the possibility of obtaining cheap and easy-to-produce energy from light. Photoinduced electron transfer from donor-type semiconducting polymers onto acceptor-type polymers or molecules, such as C 60, is the basic phenomenon utilized in these photovoltaic devices.

Can pp encapsulants replace pet based backsheets in PV modules?

Therefore, in contrast to test modules using Ethylene Vinyl Acetate (EVA) encapsulants and PET backsheets, no silver grid corrosion was observed for modules using PP backsheets. Co-extruded backsheets based on PP show great potential to be a valid replacement of standard PET based backsheets in PV modules.

What is a polymeric photovoltaic device?

The schematic structure of a typical polymeric photovoltaic device, as well as the different semiconducting polymeric donors and acceptors used in many research labs worldwide, is displayed in Fig. 1. In these devices, the photoactive layer is sandwiched between two metal (transparent conducting oxide) electrodes.