| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to product from glass fibre, which can be used for heat and sound insulation of roofs and walls in domestic and commercial buildings. Product from glass fibre contains binding composition, where binding composition before hardening contains phenol-formaldehyde resin and one or more modifiers, selected from group comprising copolymer containing one or several elementary links based on derivatives of vinyl aromatic compounds and at least one substance of maleic anhydride and maleic acid or adduct styrene, at least one substance of maleic anhydride and maleic acid and at least one substance from acrylic acid and acrylate, or any combination thereof. At that, product of glass fibre contains 3-45 wt% binding composition in terms of dry mass of product from glass fibre or binding composition contains phenol-formaldehyde resin in amount of 92-99.8 % by weight of phenol-formaldehyde resin and one or more modifiers. Described also is method of obtaining product of glass fibre.EFFECT: technical result is improved tensile properties, including tensile strength of heated/wet sample and/or enhanced tensile strength of dry sample, as well as reducing amount or level of composition, which is applied on glass fibre, which is reflected in characteristically lower percentage during annealing of product from glass fibre.20 cl, 6 dwg, 3 ex |
