Comparative Study on the Properties of Mineral Steel Plastic Composite Materials and Wood-Plastic Composite Materials
Mineral steel plastic composite materials and traditional wood plastic composite materials were systematically characterized,and their appearance,microstructure,inorganic composition,thermal and mechanical properties were compared and analyzed.The scanning electron microscopy(SEM)results indicate that the mineral steel plastic composite material sheet has a regular shape,no warping deformation,and the sample cross-section is relatively dense.However,there is interfacial peeling phenomenon in the cross-section of the wood plastic sheet,which is prone to deformation and warping.The Fourier transform infrared spectroscopy(FTIR)results indicate that the matrix material of the three types of boards is PVC resin,and their infrared spectra are similar to those of PVC.Thermogravimetric analysis(TG and DTG)shows that the thermal and mass loss rates of wood-plastic composites are higher than those of the other two types of mineral steel plastics,and the thermal stability of mineral steel plastics is significantly improved compared to wood-plastic composites.With the addition of casting ash and steel slag,the bending strength and modulus of the composite material have been improved,and the mechanical properties of mineral steel filled with casting ash are the highest among the three,with bending strength and modulus of 33.0 MPa and 4.72 GPa,respectively.Mineral steel plastic composite materials have excellent thermal and mechanical properties,and as a new type of green and environmentally friendly material,they provide a new solution for the high value-added recycling of bulk industrial solid waste.
Mineral Steel Plastic CompositesWood Plastic Composite MaterialsMicrostructureMechanical PropertiesComparative Study