| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to acoustic glasing. The acoustic glasing contains a first glass layer, at least one polymer interlayer, a second glass layer, a layer of plastic material and third glass layer. The polymer interlayer is based on material with improved sound vibration damping properties, and particularly at temperature 20C and frequency 200 Hz the loss factor tan is greater than or equal to 0.6, and the modulus of elasticity G' is less than 2107 N/m2. The weight of the first glass layer lying on one side of the polymer interlayer is not less than 20% of the total weight of the glasing, and the total weight of other elements lying on the other side of the polymer interlayer is also not less than 20% of the total weight of the glasing. ^ EFFECT: high sound-insulation of the glasing. ^ 14 cl, 3 dwg |
