Fire-Proof Material

Abstract

A fire-proof material, in particular a fire-proof thermal insulation material containing water glass, which is composed of a compound which contains 34 to 49.9 wt % of inorganic non-flammable fibres, 50 to 65 wt % of an aqueous silicate solution, and 0.1 to 1 wt % of water glass stabiliser, while it further contains a water glass hardener and the aqueous silicate solution has a density in the range of 1370 to 1400 kg/m.sup.3 and a molar ratio of SiO.sub.2 to Na.sub.2O in the range of 3.2 to 3.4.

Claims

1. A fire-proof thermal insulation material comprising water glass, a compound comprising 34 to 49.9 wt % of inorganic non-flammable fibers, 50 to 65 wt % of an aqueous silicate solution, and 0.1 to 1 wt % of a water glass stabilizer, further comprising a water glass hardener, wherein the aqueous silicate solution has a density in the range of 1370 to 1400 kg/m.sup.3 and a molar ratio of SiO.sub.2 to Na.sub.2O in the range of 3.2 to 3.4.

2. The fire-proof material according to claim 1, wherein the inorganic non-flammable fibers are glass fibers.

3. The fire-proof material according to claim 1, that wherein the inorganic non-flammable fibers are basalt fibers.

4. The fire-proof material according to claim 1, wherein the inorganic non-flammable have a length of 6 to 12 mm.

5. The fire-proof material according to claim 1, wherein the aqueous silicate solution is an aqueous sodium silicate solution.

6. The fire-proof material according to claim 1, wherein the waterglass stabilizers are hydrophilic alkoxy alkyl-ammonium in salts.

Description

EXAMPLES OF THE PERFORMANCE OF THE INVENTION

Example 1

[0020] The fire-proof insulation material is composed of a compound which contains 41 wt % of inorganic non-combustible fibres, 58.5 wt % of aqueous sodium silicate solution, and 0.5 wt % water glass stabiliser.

[0021] The inorganic non-combustible fibres are alkali zirconium silicate glass fibres, which have a length of 6 to 12 mm.

[0022] The fire-proof material further contains a water glass hardener, which is a compound of pure glycerol diacetate/triacetate in a ratio of 7:3 parts by volume, with a concentration of 0.5 to 5 wt % to pure water glass.

[0023] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

[0024] The aqueous sodium silicate solution has a density of 1390 kg/m.sup.3 and the molar ratio of SiO.sub.2 to Na.sub.2O is 3.3.

[0025] The resulting compound is poured into a silicone mould in the form of a panel and left undisturbed to harden, with the product being a fire-proof insulation panel.

Example 2

[0026] The fire-proof insulation material is composed of a compound which contains 41 wt % of inorganic non-combustible fibres, 58.5 wt % of aqueous sodium silicate solution, and 0.5 wt % water glass stabiliser.

[0027] The inorganic non-flammable fibres are basalt fibres which have a length of 6 to 12 mm.

[0028] The fire-proof material further contains a water glass hardener, which is a compound of pure glycerol diacetate/triacetate in a ratio of 7:3 parts by volume, with a concentration of 0.5 to 5 wt % to pure water glass.

[0029] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

[0030] The aqueous sodium silicate solution has a density of 1370 kg/m.sup.3 and the molar ratio of SiO.sub.2 to Na.sub.2O is 3.2.

[0031] The resulting compound is poured into the cavity of a vault door and is left undisturbed to harden, with the product being a fire-proof vault door.

Example 3

[0032] The fire-proof insulation material is composed of a compound which contains 34 wt % of inorganic non-combustible fibres, 65 wt % of aqueous sodium silicate solution, and 1 wt % water glass stabiliser.

[0033] The inorganic non-flammable fibres are alkali zirconium silicate glass fibres, which have a length of 6 to 12 mm.

[0034] The fire-proof material further contains a water glass hardener, which is a compound of pure glycerol diacetate/triacetate in a ratio of 7:3 parts by volume, with a concentration of 0.5 to 5 wt % to pure water glass.

[0035] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

[0036] The aqueous sodium silicate solution has a density of 1,400 kg/m.sup.3 and the molar ratio of SiO.sub.2 to Na.sub.2O is 3.4.

[0037] The resulting compound is poured into a silicone mould in the form of a panel and left undisturbed to harden, with the product being a fire-proof insulation panel.

Example 4

[0038] The fire-proof insulation material is composed of a compound which contains 34 wt % of inorganic non-combustible fibres, 65 wt % of aqueous sodium silicate solution, and 1 wt % water glass stabiliser.

[0039] The inorganic non-flammable fibres are basalt fibres, which have a length of 6 to 12 mm.

[0040] The fire-proof material further contains a water glass hardener, which is a compound of pure glycerol diacetate/triacetate in a ratio of 7:3 parts by volume, with a concentration of 0.5 to 5 wt % to pure water glass.

[0041] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

[0042] The aqueous sodium silicate solution has a density of 1390 kg/m.sup.3 and the molar ratio of SiO.sub.2 to Na.sub.2O is 3.3.

[0043] The resulting compound is poured into the cavity of a vault covering wall and is left undisturbed to harden, with the product being a vault cage.

Example 5

[0044] The fire-proof insulation material is composed of a compound which contains 49.9 wt % of inorganic non-combustible fibres, 50 wt % of aqueous sodium silicate solution, and 0.1 wt % water glass stabiliser.

[0045] The inorganic non-combustible fibres are alkali zirconium silicate glass fibres, which have a length of 6 to 12 mm.

[0046] The fire-proof material further contains a water glass hardener, which is a compound of pure glycerol diacetate/triacetate in a ratio of 7:3 parts by volume, with a concentration of 0.5 to 5 wt % to pure water glass.

[0047] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

[0048] The aqueous sodium silicate solution has a density of 1390 kg/m.sup.3 and the molar ratio of SiO.sub.2 to Na.sub.2O is 3.3.

[0049] The resulting compound is poured into a silicone mould in the form of a panel and left undisturbed to harden, with the product being a fire-proof insulation panel.

INDUSTRIAL APPLICATION

[0050] The fire-proof material according to the invention has a wide range of uses in the construction and industrial sectors, while it can not only be used to make separate insulation products, but can also be used to fill various spaces with complex shapes. It is advantageous, for example, to use it for the insulation of walls from heat sources, the insulation of ceilings under soffits, insulation layers for baking surfaces and ovens, the insulation of fireplaces and stoves, for heat shielding, as a fire-proof insert for doors, gates, resistant sealing around cables, pipes and cable trays, refractory protection of load-bearing structures. They can also be used as chemical protection, for example for the production of chemical-resistant mats. It is also advantageous for use in security systems, such as vault wall fillings.