insulated wall panel

The insulated wall panel is composed of 2 layers of galvanized steel plate (or aluminum plate) and a layer of insulation core material (EPS,PU and rock wool, etc.). Its environmental performance mainly depends on the insulation core material, from the following dimensions for comparative analysis.   Dimensions EPS PU（polyurethane） Rock wool Raw material and use release New materials are non-toxic and formaldehyde-free; inferior recycled materials may release VOCs. No release of high-quality products; TDI or harmful flame retardants are residual in low-quality products. No chemical release, but may produce dust irritating respiratory tract. Production and energy consumption Energy consumption is moderate, and VOCs pollution may occur in the treatment of recycled materials. Higher energy consumption, more environmentally friendly MDI process High energy consumption (ore melting needs high temperature), need to control dust Energy saving and carbon reduction Thermal insulation medium (thermal conductivity 0.033-0.038W/(m · K)) Optimal thermal insulation (thermal conductivity ≤ 0.024W/(m · K)), energy saving and carbon reduction is the strongest Weak insulation (thermal conductivity 0.040-0.048W/(m · K)) Combustion and Safety Flammable, flame retardant may release toxic fumes Flammable, high quality flame retardant smoke toxicity is low Non-combustible (Class A1), no toxic smoke Waste disposal Refractory degradation, low recycling rate Difficult to degrade, difficult to recycle Natural degradation, landfill without chemical pollution   In summary, high-quality PU wall panel energy-saving optimal, suitable for long-term energy-saving needs; high-quality EPS wall panel cost-effective, need to avoid recycling materials; rock wool wall panel fire prevention and waste environmental protection outstanding, but need to control dust. The core of environmental protection is "high-quality product selection"-organic materials to avoid inferior recycling materials, inorganic materials to choose low dust.Different choices can be made according to the different uses of the building.