Sandwich Panel Wall
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PUR/PIR sandwich panel wall plate produced by Henan Panels Industry CoLtd. It own beautifulappearance and good overall effect.Itintegrates load-bearing, heat preservation,fireproofand waterproofintegration, and does not require secondary decoration. Itisquick and convenientto install, has short construction period and good comprehensivebenefits, good cost performance advantage . It is a kind of high-efficiency energy-saving building envelope material with wide application and great potentialThe PUR( polyurethane) /PIR(polyisocyanurate)is an energy-saving insulationmaterial, itis a combination of polyether (white material), curing agent, foaming agentflame retardant, catalyst and isocyanate (black material) in a certain proportion.through high pressure or low pressure foaming machine. Instantly mix and thenuniformly cast between the upper and lower layers, apolymer material thatis laminatedand foamed to have properties such as heat insulation, fire prevention and heatpreservation.
2.In the above article we mentioned polyurethane fillers, so what is polyurethane and why is it used for foaming to make sandwich panels?
Polyurethane is a polymer material composed of polymeric urethane ester or polymeric urethane ester. It has excellent thermoplastic and thermosetting properties and is prepared mainly by reacting multifunctional isocyanates with polyols to form polymer chains. The result of this reaction is an elastomer that can be used to prepare polyurethane in different forms, such as rigid, soft or foam, depending on the needs.
In addition, polyurethane has a variety of excellent properties, including chemical resistance, wear resistance, impact resistance, insulation properties, etc. Due to these properties, polyurethane is widely used in construction, automobiles, furniture, flooring, footwear, clothing and coatings. In the construction field, polyurethane is used to make insulation materials and waterproof materials.
Polyurethane has alow thermal conductivity between 0.018 and 0.023 W/mk, and other insulation materials are incomparable. The addition of a rigid metal exteriordecorative surface provides long-term thermal insulation without damage to the outercasing. Its thermal insulation performance can be maintained for about 50years.
3.The picture below is a comparison of the thermal insulation effects of polyurethane sandwich panels produced by our company and other building panels. It can be clearly seen from the figure that PIR/PU sandwich panels have the best thermal insulation effect, even 15 times that of concrete walls.
If you are planning to build a warehouse, cold storage, breeding farm, etc., polyurethane sandwich panels are a good choice. Contact us not only to purchase high-quality steel structure building sandwich panels, but also to design drawings for you for free.
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