Polyurethane edge sealing rock wool sandwich panel

Polyurethane edge-sealed rock wool sandwich panels have low thermal conductivity, good load resistance, high flexural strength, no water absorption, no rot, no insect bites, good flame retardancy, and a wide temperature range. Utilizing the physical properties and unique formula of polyurethane (PU.PIR), the polyurethane foaming agent is evenly sprayed on the color-coated steel plates, so that the foaming agent is foamed between the color-coated steel plates to form three layers of one-time molded polyurethane ( PU.PIR) color steel composite sandwich panel. This new lightweight building material is a perfect combination of color-coated steel plates and polyurethane, and is the development direction of lightweight building materials.

Material characteristics

Features:

(1) Sealing performance: The polyurethane double-sided sealed rock wool sandwich panel adopts an assembly line production process, thereby taking advantage of the excellent waterproofness of polyurethane products to overcome the shortcomings of rock wool that easily absorbs water and deliquesces, and effectively extends the use of the product in terms of physical properties. life.

(2) Aesthetic performance: The interface is designed according to European standards. The appearance is round and smooth, the board surface is smooth and beautiful, the joints are tight, and the strength is reliable, effectively preventing the occurrence of hot and cold bridges.

(3) Good stiffness: The polyurethane double-sided sealing rock wool core material and the two layers of steel plates are bonded into a whole and work together. In addition, the upper surface of the roof panel is corrugated and pressed, and its overall stiffness is much better than that of the profiled plate sandwiched with rock. On-site composite panels of cotton (glass wool). After the sandwich panels are fixed to the purlins through connectors, the overall stiffness of the roof is greatly improved and the overall working performance of the roof is enhanced. By using rock wool sandwich panels, a larger purlin spacing can be used, so the purlin consumption can be saved by 1/3 to 2/3.

(4) Reasonable fastening method: The polyurethane double-sided sealed rock wool roof panels adopt a hidden buckle connection method, which avoids the hidden danger of leakage at the joints of the roof panels and saves the amount of accessories.

(5) The fixing method is firm and reasonable: The polyurethane double-sided sealed rock wool roof panels are fixed with special M6 self-tapping screws and purlins, which can effectively resist typhoons and other external forces. Self-tapping screws are set at the crest position between the joints of the two roof panels, and a special waterproof structure is adopted to avoid waterproof weak points.

(6) Short installation cycle: Polyurethane double-sided sealed rock wool sandwich panels do not require secondary processing on site, which not only keeps the surrounding environment clean and does not affect the normal progress of other processes, but also greatly shortens the installation cycle of the panels. The average daily installation area of cotton sandwich panels reaches 600~800m2.

(7) Anti-scratch protection: During the production of polyurethane double-sided sealed rock wool sandwich panels, a polyethylene self-adhesive protective film can be pasted on the surface to prevent the surface coating of the steel plate from being scratched or worn during transportation and installation.

advantage:

(1) Excellent fire resistance: The raw materials, production process and formula used in the polyurethane double-sided sealed rock wool sandwich panel make it have very good fire resistance. Tests have shown that it has fire resistance exceeding 1000°C. The polyurethane double-sided sealed rock wool sandwich panel has passed the test of the Italian testing agency GIOROANO S.P.A. In accordance with the standards of the International Organization for Standardization (ISO), British BS and German DIN, the rock wool sandwich panel meets the fire protection standard M.I. 14/09/61 Letter No. 91 and request of D.M. 30/11/83. The test results are as follows: 50mm thick polyurethane double-sided rock wool sandwich panel REI 30, 80mm thick polyurethane double-sided rock wool sandwich panel REI 60, 100mm thick polyurethane double-sided rock wool sandwich panel REI 120.

(2) Good thermal insulation: The thermal insulation of the polyurethane double-sided sealed rock wool sandwich panel is based on the thermal conductivity of rock wool λ = 0.043 W / m2 K, and the thickness of the rock wool core material in the corresponding proportion Obtained by calculation.

(3) Significant sound insulation and sound absorption effects: Polyurethane double-sided sealed rock wool sandwich panels can significantly reduce noise transmission, and are especially suitable for places where designated flights pass. In addition, after using rock wool roof panels, the indoor sound caused by the impact of rain and hail on the building's roof steel panels is also significantly reduced. Through testing, in accordance with ISO 717/82 and UNI 8270/7 standards, a sandwich panel with a density of 120kg/m3 rock wool as the core material was selected, and the sound insulation effect can reach RW=29~30 dB.

Rock wool sandwich panels also have good sound absorption effects and can absorb sound in a wide frequency range. According to the ISO 354/85 standard, the sound absorption performance level of rock wool sandwich panels reaches DELTA LA=15.7 dB(A).

Polyurethane double-sided sealed rock wool sandwich panels give full play to the unique properties of rock wool core materials and have significant effects in fire prevention, thermal insulation, sound absorption and sound insulation, etc.; at the same time, they retain the plasticity, airtightness, high strength and non-absorption of polyurethane The advantages. The advent of this material is a revolutionary change in construction engineering, which fully integrates the advantages of polyurethane and rock wool and eliminates the shortcomings of traditional boards. In a sense, polyurethane double-sided sealed rock wool sandwich panels cannot be compared with ordinary rock wool sandwich panels.