What are the types of artificial leather according to different ingredients?

Artificial leather can be divided into three types according to its composition: PVC leather (polyvinyl chloride), PE leather (polyethylene), and PU leather (polyurethane).
PVC leather: The products after combustion include water, carbon dioxide, chlorine compounds, and even chlorine gas.
PE leather: After full combustion, the theoretical products are only water and carbon dioxide.
PU leather: The products after full combustion include water, carbon dioxide, nitrogen, and a small amount of nitrogen-containing compounds.