RU134554U1 - THERMAL INSULATION AND SOUND INSULATION MATERIAL - Google Patents

Abstract

Heat-insulating and sound-insulating material containing a fibrous web and a protective sheath, which is placed on both sides of the web and fastened with thread seams, characterized in that the material has a surface density of 700-10000 g / m, the fibrous web is made of siliceous fibers or glass fibers or basalt fibers, and the sheath material is made of glass fibers or nonwoven polypropylene or siliceous fibers or basalt fibers or foil material.

Description

The proposed device relates to heat, vibration and soundproof building materials used in the field of civil and industrial construction, reconstruction and repair of buildings and structures.

Known fire and heat-shielding material (see patent 2360800), consisting of at least two layers. In this case, at least one first layer is made of metal foil, for example of aluminum foil or of steel foil, or of stainless steel foil, or of tungsten foil. The layer has a thickness of 0.007-1.5 mm. At least one second layer is a structurally formed mineral or ceramic fiber and has a density of 30-1000 kg / m3 and a thickness of 5.0-100.0 mm, with a fiber diameter of 1-30 μm and a fiber length of at least 20 mm In this case, the second layer is made of needle-punched or needle-stitched, or thermally bonded mineral or ceramic fiber. The disadvantage of the material is the low level of sound insulation and the placement of the coating on the fibrous web on only one side, which affects its consumer properties.

Known heat-insulating and sound-proofing material (see AS USSR N 1650441, 1991), containing fiberglass canvas, reinforcing layer, a protective polymer coating and, possibly, a metal coating. The polymeric material performs the function of adhesion, ensuring the connection of the backup coating with a pre-connected fiberglass carpet and a reinforcing layer.

The disadvantage of the material is its low strength, unsatisfactory heat and sound insulation properties.

Known thermal insulation and soundproofing material (see patent No. 2077368) with higher strength characteristics and heat and sound insulation properties. This is achieved by the fact that they use a material containing fiberglass piercing fabric and a protective double-sided sheath of non-woven polypropylene. The material has a surface density of 520 ÷ 30% g / m ² . In this case, a protective sheath of nonwoven polypropylene having a surface density of 70 ÷ 20% g / m ² is preferably used.

The lack of material is also unsatisfactory strength, heat, sound insulation and damping properties.

Known heat-insulating and sound-proofing material (see patent No. 13763) for multi-purpose with increased strength and surface heat resistance and incombustibility, achieved by the fact that it contains as a filler a heat-resistant fibrous material enclosed in a double-sided sheath of non-woven polypropylene with a protective coating of heat-resistant non-combustible fabric .

The closest in technical essence of the known devices is a heat and sound insulating material (see patent No. 84774), made in the form of a tape rolled up into a roll or skein, containing filler in the form of fiberglass piercing fabric or needle-punched fiberglass and a double-sided sheath of non-woven polypropylene, sewn together in longitudinal and transverse direction, the material is equipped with transverse mounting elements made of double-sided tape on a fabric, polypropylene or paper basis, and installed detecting at equal intervals on one side of the shell, wherein the filler has a basis weight of 60-80 g / m ^2.

However, this material and all known devices have insufficient heat-insulating, heat-resistant, sound-proofing, strength and vibration-proofing characteristics.

The objective of the utility model is to increase the heat-insulating, sound-insulating, vibration-proofing and strength characteristics of the material.

The problem is achieved in that in a heat-insulating and sound-insulating device containing a fibrous web and a protective sheath, which is placed on both sides of the web and fastened with thread seams, the material has a surface density of 700 ÷ 10,000 g / m ² , the fibrous web is made of siliceous fibers or glass fibers or basalt fibers, and the sheath material is made of glass fibers or non-woven polypropylene or glass fibers or siliceous fibers or basalt fibers or foil material.

Basalt fiber provides good thermal insulation properties, as it has a low coefficient of thermal conductivity. Siliceous fiber provides high resistance to burning when exposed to a flame, since its melting point is higher than the flame temperature. The use of siliceous fiber makes it possible to increase the limiting temperature of the use of thermal insulation material to 1150 ° C. The protective shell ensures the preservation of the properties of the proposed material during operation, as it protects the soundproof and fire-resistant layers from shedding and pollution.

The manufacture of the outer layer of foil material performs an aesthetic task and helps increase the reflectivity of the heat flux of the outer layer.

Studies have shown that the use of materials made of siliceous or glass or basalt fibers as a shell or filler increases the temperature limit for the use of thermal and sound insulation material. Table 1 shows a comparative characteristic of the limiting operating temperatures of the claimed thermal and sound insulation material.

       Product Type Extreme temperature of application, ˚С Material in a shell made of siliceous fabric with an inner layer of:
siliceous fiber
basalt fiber
fiberglass From -200 to +1150
From -200 to +900
-200 to +800 Material in a sheath of basalt fiber with an inner layer of:
siliceous fiber
basalt fiber
fiberglass From -200 to +900
From -200 to +900
-200 to +800 Fiberglass sheath material with an inner layer of:
siliceous fiber
basalt fiber
fiberglass -200 to +800
-200 to +800
-200 to +800 Material in a sheath made of non-woven polypropylene fiber with an inner layer of:
siliceous fiber
basalt fiber
fiberglass -100 to +140
-100 to +140
-100 to +140

The thermal conductivity of glass fiber mats (at 25 _o C, W / (m · K) at a surface density of 1000 g / m ² -0.041, 2300 g / m ² -0.038, 4600 g / m ² -0.030.

Also, the above materials have high strength (see table 2).

Non woven
polypropylene Fiberglass Basalt Silica Tensile strength, MPa 2.1 3.45 4.84 4.45

Based on the data given in table.2, we can judge about the improvement of the strength characteristics of the claimed material in comparison with analogues.

The normal sound absorption coefficient of a material made of fiberglass was: at 63 Hz -18 dB; at 125 Hz-16 dB; at 250 Hz-30dB; at 500 Hz - 25dB; at 1000 Hz - 19 dB; at 2000 Hz-10 dB; at 4000 Hz - 36 dB.

Examples of the implementation of the claimed utility model.

To obtain heat-insulating and sound-insulating material based on fiberglass, the IPS-T-1000 fabric (mass per unit area, 1000 g / m2), IPS-T-2300 (mass per unit area, 2300 g / m2), IMP-E with a mass are used per unit area from 800 to 3000 g / m2.

Fiberglass TG-600 (mass per unit area, 600 g / m2), TG-800 (mass per unit area, 600 g / m2), ET-1100 (mass per unit area, 1100 g / m2 are used as a fiberglass sheath. )

For example, the IPS-T-2300 fabric is stitched from the ET-1100 fiberglass fabric laid on both sides, the resulting material has a surface density of 6800 g / m2.

As a shell of siliceous fabric, KT-11-TO-30K brand fabric (mass per unit area, 300 g / m2), KT-1000-S-TO (mass per unit area, 1100 g / m2) are used.

The filler is coated on both sides with a shell stitched along the roll with threads (polyester, fiberglass, basalt, siliceous). The width between the seams along the roll is from 10 to 25 cm. The number of seams depends on the width of the material. The number of stitches per 10 cm of the seam is at least 10 pcs.

Hello implementation is shown in the drawing.

The device consists (Fig.) Of web1, placed inside the protective shell 2, fastened with thread seams 3.

This device has improved thermal and sound insulation properties, and also provides the required vibration isolation and protection from the negative effects of the external environment.

the web can be made of silica, glass or basalt fibers, and the shell can be made of non-woven polypropylene, glass, silica, basalt fibers or foil material.

Basalt fiber provides good thermal insulation properties, as it has a low coefficient of thermal conductivity. Silica fiber provides high resistance to burning when exposed to a flame, since its melting point is higher than the flame temperature. The protective shell ensures the preservation of the properties of the proposed material during operation, as it protects the heat and sound insulating and fire-resistant layers from shedding and pollution.

The manufacture of the outer layer of foil material performs an aesthetic task and helps increase the reflectivity of the heat flux of the outer layer.

An example implementation is shown in the drawing.

The device consists (Fig.) Of the web 1, placed inside the protective shell 2, fastened with thread seams 3.

This device has improved thermal and sound insulation properties, and also provides the required vibration isolation and protection from the negative effects of the external environment.

Claims (1)

Heat-insulating and sound-insulating material containing a fibrous web and a protective sheath, which is placed on both sides of the web and fastened with thread seams, characterized in that the material has a surface density of 700-10000 g / m ² , the fibrous web is made of siliceous fibers or glass fibers or basalt fibers, and the sheath material is made of glass fibers or nonwoven polypropylene or siliceous fibers or basalt fibers or foil material.

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