Why can PVC wood-plastic panels be fireproof

The main reason why PVC wood-plastic panels can have fire resistance performance is due to their material and structural characteristics:

PVC (polyvinyl chloride) material: PVC is a plastic material with a high ignition point. At high temperatures, PVC materials are not prone to self combustion. When burned, PVC usually produces a small amount of toxic gas, but its flame propagation speed is slower and usually extinguishes after the ignition source is removed.

Wood plastic composite material (WPC): PVC wood plastic board is usually a wood plastic composite material that combines wood fibers or particles with PVC plastic. This combination gives the board the appearance and texture of wood, but its combustion performance is affected by PVC plastic, thereby reducing the possibility of combustion.

Adding flame retardants: When manufacturing PVC wood-plastic panels, flame retardants are usually added to improve their resistance to flame spread. These flame retardants can slow down the spread of fire and reduce the degree of combustion.

Material density: PVC wood-plastic panels typically have a higher density, which makes them more difficult to burn. High density materials require more heat to ignite, making them more fireproof.

Low thermal conductivity: PVC has low thermal conductivity, which means it is not easy to transfer heat to other objects when exposed to a fire source, thus helping to control the fire.

Although PVC wood-plastic panels have good fire resistance, it should be noted that they can still burn at extremely high temperatures, producing toxic gases. Therefore, in building applications, it is usually necessary to meet specific building fire protection standards and regulations. For example, when used in buildings, safety measures such as evacuation routes, smoke detectors, and fire extinguishing systems need to be considered to ensure fire safety.