PMI foams are a class of closed-cell thermoplastic structural foams with very high strength and stiffness and excellent fatigue resistance. In addition, it has high temperature resistance and chemical resistance during thermoforming, so it is often used as the core material of sandwich structural materials. Widely used in floors in automobiles, beams and bulkheads in ships, high-load profiles in fan blades.
PMI foam is a closed-cell thermoplastic structural foam suitable for use in all resin systems and process technologies. Features: Through thermoforming, complex body structures can be realized, and the thermal stability after heating is good. Good shear and compression properties. Residues and chips can be reused in the production process to make new materials.
Traditional PET foam uses fluoride as a blowing agent in the production process, which will have a certain impact on the environment and human health. The PET foaming technology can use the carbon dioxide generated in the production process as a foaming agent, so it can achieve zero emissions of greenhouse gases, which is very beneficial to environmental protection. It can withstand temperatures of about 150°C for a short period of time during processing and about 100°C for a longer period of time during its service life.
As the core material of the composite sandwich structure, the mechanical properties of the PET foam core are related to the foam density. The higher the density, the better the mechanical properties, but at the same time the higher the weight, the more material required and the higher the cost. PET foam core has better fatigue resistance. Application areas: Rail transit: floors, side walls, fronts, interior structures, roofs, hoods. Ships: decks, internal structures, superstructures. Wind power: sandwich cores for blade shells, webs, and nacelle cover structures. Industry: covers, containers, X-ray tables, sports equipment. Architecture: Ceilings, cladding, domes, mobile homes.