Patent ID: 11987039

Abstract:
The present disclosure belongs to the technical field of PVC foam co-extruded sheets, and particularly relates to a wide low-temperature impact-resistant and bending-resistant PVC foam co-extruded sheet and a preparation method thereof. The PVC foam co-extruded sheet of the present disclosure includes a core layer and a skin layer. Raw materials of the core layer include PVC resin powder, a silicone-methyl methacrylate-ethyl acrylate composite low-temperature toughening and reinforcing agent, a filler, a foaming regulator I, a white foaming agent, a calcium-zinc stabilizer, a cold-resistant plasticizer, stearic acid, polyethylene wax, and oxidized polyethylene wax. Raw materials of the skin layer include PVC resin powder, a silicone-methyl methacrylate-ethyl acrylate composite low-temperature toughening and reinforcing agent, activated nano-silica, a foaming regulator II, a composite foaming agent, a calcium-zinc stabilizer, a composite weather-resistant modifier, rutile titanium dioxide, polyethylene wax, oxidized polyethylene wax, a cold-resistant plasticizer, and a compound antibacterial and mildewproof agent.