1) Excellent fire protection performance: Polyurethane double-side sealing glass and cotton sandwich panel using raw materials, production technology and formulations, so that it has a good fire performance. The test shows that it has more than 1000 ℃ of refractory capacity. Polyurethane double-side sealed glass and cotton sandwich Panel has passed the Italian Authority testing agency Gioroano S.P.A test, according to the International Organization for Standardization (ISO), the British BS and DIN of Germany standards, glass cotton core sandwich board to meet the Fire safety standards M.I. 14/09/61 Letter No. 91st and D.M. 30/11/83 's requirements.
The test results are as follows: 50mm thick polyurethane double side seal glass silk and cotton sandwich panel ei30,80mm thick polyurethane double side seal glass cotton silk sandwich panel rei 60,100mm thick polyurethane double side seal glass cotton silk Sandwich board REI 120.
2) Good thermal insulation: Polyurethane double-sided sealing glass and cotton sandwich panel insulation is based on the thermal conductivity of glass wool λ=0.043 w/m2 K, based on the corresponding proportion of glass and cotton core material thickness calculation. 3) Sound-absorbing effect is significant: polyurethane double-side sealing glass and cotton sandwich panel on the noise transmission has a significant reduction, especially for those who have a designated flight through the place. In addition, the use of glass and cotton roof panels, rain, hail to the building of the roof plate impact caused by indoor sound, but also significantly weakened. Through testing, according to the ISO717/82 and Uni 8270/7 Standard, the density of 120kg/m3 glass and cotton as core material sandwich panel, sound insulation effect can reach rw=29~30 DB. The glass wool and cotton sandwich panel also has excellent sound absorption effect, it can absorb the voice in the wide frequency range.
According to the ISO 354/85 standard, the acoustic performance level of the glass wool and cotton sandwich panel reaches Delta la=15.7 DB (A). Polyurethane double-side sealing glass and cotton sandwich panel fully play the unique properties of glass cotton core material, in the fire, heat insulation, sound-absorbing noise and other aspects have a significant effect, while retaining the polyurethane can be plastic, airtight, high strength, non-absorbent advantages. The advent of this material is a revolutionary change in the construction engineering, making the advantages of polyurethane, glass wool cotton has been fully integrated, the screen discarded the shortcomings of the traditional plate.
In a sense, polyurethane double-sided sealing glass and cotton sandwich panel and ordinary glass and cotton sandwich panel can not be compared.