RU144498U1 - MULTILAYER INSULATION MATERIAL - Google Patents

Abstract

The utility model relates to the field of construction, relates to multilayer insulating material, which can be used for the installation and repair of roofing of residential and industrial buildings and structures operated in various climatic zones, as well as for hydro and thermal insulation of foundations, pools, pipelines, heating mains and etc. The multilayer insulating material contains layers of polyvinyl butyral film. What is new is that a reinforcing layer is made between the layers of the polyvinyl butyral film. The technical result from the use of the proposed utility model is to increase its safety, as well as to improve the quality, reliability and life of insulation of surfaces. 1 N.P.F., 5 Z.P.F., 2 FIG.

Description

The utility model relates to the field of construction, relates to multilayer insulating material, which can be used for the installation and repair of roofing of residential and industrial buildings and structures operated in various climatic zones, as well as for hydro and thermal insulation of foundations, pools, pipelines, heating mains and etc.

Known insulating material containing a base and a rubber composition of ethylene-propylene rubber applied to it (Polymer, soft roofing and heat-insulating building materials industry. Issue 2, Moscow, VNIIESM, 1993, p. 30).

However, this material has low plastoelastic, technological characteristics and large shrinkage.

Also known is an insulating material containing a fabric or non-woven base, a layer of polymer material located on one side of the base made of a thermoplastic or elastomeric composition, for example, ethylene-propylene (diene) rubber (Yu.P. Shulzhenko, Polymeric roofing materials. Materials ”, 1998, No. 11, pp. 8-10).

The disadvantages of this material include the complexity of the technology when installing coatings due to the need to use adhesive mastics on organic solvents, which worsens the production environment and creates the prerequisites for a fire and explosive situation, and in addition, leads to the formation of defects (swelling, unevenness of the adhesive layer) .

Known insulating material containing a base of fabric or non-woven material and a layer located on one of its sides made of an elastomeric or thermoplastic composition, and on the other side of the base a layer made of a bitumen-polymer composition comprising bitumen and divinyl-styrene thermoplastic elastomer or polyolefin in the mass ratio (70-95) :( 5-30) (RU 15688 U,).

A disadvantage of the known technical solution is that because of the need to form a layer of a bitumen-polymer composition from a hot bitumen-polymer mass, there is a possibility of its penetration through the base layer onto the side of the base on which the elastomeric or thermoplastic composition is applied, which leads to poor adhesion them to the base and other strength properties of the insulating material as a whole.

Known insulating material containing a base made of woven or non-woven material, or foil material having increased strength and separation properties that prevent the penetration of hot bitumen-polymer material deposited on one of its sides onto the other side of this base with a material made of an elastomeric or thermoplastic composition (RU 73273 U, publ. 05.20.2008). The base material has a surface strength of at least 75 g / cm ² and a mesh size of not more than 0.1 mm without capillary suction. The bitumen-polymer layer is made of a bitumen-polymer composition, including bitumen and divinyl-styrene thermoplastic elastomer or polyolefin with a mass ratio of (70-95) :( 5-30), and also additives such as filler, antiseptic additive are possible. The resulting material has stable insulating properties, water resistance, frost resistance. The proposed material is characterized by high manufacturability and a high level of physicotechnical and physicomechanical indicators in the absence of defects, improved ecology of its production and use, as well as stable characteristics during its formation and operation in a wide temperature range.

The disadvantages of this design are the thermal connection of the joints, a complex production technology, the composition includes a bitumen component, which affects the properties at low temperatures.

Known film of polyvinyl butyral for the production of safety glass for vehicles (triplex). The film is made of both plasticized and non-plasticized polyvinyl butyral, the film can be painted (“Polyvinyl butyral adhesive film”, GOST 9438-85, Moscow, 1985).

Polyvinyl butyral film is nontoxic, combustible, insoluble in water, but soluble in organic solvents (ethers, alcohols, ketones, benzols, etc.), tight, has good adhesion to various materials (glass, metal, wood, etc.), shock strength and wear resistance, frost and light resistance, polymerizes at temperatures from + 10 ° C, sticking together to a state of homogeneous material.

The closest in technical essence and the achieved result to the proposed utility model is a multilayer insulating material containing layers of polyvinyl butyral film, known from the method of applying a polymer material according to the application RU 2012100941 A, E04B 1/62, E04B 1/84, B32B 33/00, publ. 07/20/2013, adopted for the closest analogue (prototype).

An advantage and a common feature of a multilayer insulating material with the proposed utility model is the presence of layers of polyvinyl butyral film, which excludes thermal (fire) bonding of the material with each other when waterproofing surfaces of various shapes (planes, cylinders, spheres, etc.), provides a simple , reliable, safe installation and repair of such waterproofing, due to increased adhesive and polymerization properties, low weight and very good flexibility of polyvinyl butyral.

The disadvantage of the multilayer insulation material of the prototype is the increased combustibility, which makes it dangerous for use in civil engineering. In addition, at temperatures above + 60 ° C, a polyvinyl butyral film is easily deformed, which reduces the quality and reliability of waterproofing from such a material.

The objective of the utility model is the improvement of multilayer insulating material.

The technical result from the use of the proposed utility model is to increase its safety, as well as improving the quality, reliability and durability of the insulation of surfaces.

The problem is achieved in that in a multilayer insulating material containing layers of a film of polyvinyl butyral, a reinforcing layer is made between the layers of a film of polyvinyl butyral; the reinforcing layer is made of fiberglass; the reinforcing layer is made of non-woven polymer fabric; the reinforcing layer is made of a mesh of a polymeric material; the reinforcing layer is made of woven polymeric material; further comprises a heat-insulating layer made between the layers of the polyvinyl butyral film.

In FIG. 1 is a schematic drawing of a multilayer insulating material.

In FIG. 2 is a schematic drawing of a multilayer insulating material with a heat-insulating layer.

Structurally, the waterproofing material in FIG. 1, 2 contains:

1 - layers of a film of polyvinyl butyral;

2 - reinforcing layer.

Additionally, the waterproofing material of FIG. 2 contains:

3 - thermal insulation layer.

The reinforcing layer 2 is made between the layers of the film of polyvinyl butyral 1, for example, fiberglass; or from a nonwoven polymer web, or from a mesh of a polymeric material, or from a woven polymeric material.

Additionally, the multilayer insulating material may include a heat-insulating layer 3 made between the layers of the film of polyvinyl butyral 1.

The assembly of the proposed utility model is as follows.

To assemble a multilayer insulating material, a laminator with three feed shafts and a rewinder is used. Two rolls of polyvinyl butyral film are installed on the upper and lower laminating feeder shafts. A roll of reinforcing material is installed on the middle feed shaft of the laminator. The film and the reinforcing material are passed through the compression shafts of the laminator through the pre-heating, preparation and leveling system. The result is a multilayer insulating material. Further, the resulting material is wound into coils through a spacer strip by a rewinder. The roll is removed from the rewinder, packaged and stacked.

In the case of using a layer of heat-insulating material, first a layer of polyvinyl butyral film is laid on the insulated surface, on it is a layer of insulation, on top is a multilayer insulation material made on a laminator. In this case, the upper and lower layers are connected along the perimeter and form a sealed cavity with thermal insulation. The canvas is mechanically attached to the ceiling at the rate of one dowel facade 0.3-0.5 sq.m.

As a reinforcing material, for example, fiberglass fabrics made on the basis of TU of the following grades are used: E3 / 1-100 (TU), E3 / 2-200 (180 gr.) (TU), E3 / 2-200 (160 gr.) (TU), E3 / 2-200 (135 gr.) (TU), T-23 (240 gr.) (TU), T-13 (260 gr.) (TU).

As a thermal insulation material, for example, heaters of the companies ISOROC (Sweden), URSA (Germany), ROCKWOOL (Denmark) are used. ISOVER, PAROC (Finland) and IZOMAT (Slovakia), etc.

When waterproofing the roof, the laying of the material begins from the lower sections up the slope. In roofs with an internal drain, the laying of material begins from the funnel, in roofs with an unorganized drain the material begins to be laid from the lowest point of the roof - from the overhang. Lay the canvases of the multilayer insulating material with a lateral overlap of 30-50 mm and an end overlap of at least 50 mm, fix along the perimeter and base one calculation point of 0.2-0.5 sq.m.

When isolating the pipeline, heating mains, they wrap the surface of the pipes with a cloth of a multilayer insulating material with an overlap.

When isolating foundations, pools, artificial ponds, lay sheets of multilayer insulating material with a lateral overlap of 30-50 mm and an end overlap of at least 50 mm, and fix along the perimeter.

To accelerate the connection and guarantee tightness at the joints of the canvases of the multilayer insulating material, a thin layer of solvent, for example, B 646, is applied.

The multilayer insulating material performs the function of hydro-vapor barrier, corrects the thermal expansion of the base due to the elasticity properties and polymerization of polyvinyl butyral, provides a reliable connection at the molecular level of the films with each other and connection with other materials without heat treatment, which makes it possible to make a waterproofing carpet of any size and shape without joints, contributes to simple, quick installation, increases the strength of waterproofing due to the absence of internal stresses.

The presence of a reinforcing layer in a multilayer insulating material increases its strength, safety, and also helps to improve the quality, reliability and durability of surface insulation.

The following are examples of specific uses of the utility model.

Example 1

The roof of the workshop covered with galvanized profiled sheeting НС35 0.45 with an area of 270 square meters was repaired. multilayer insulating material

They solved the problem: due to the small angle of the roof slope in the places of overlap of sheets in the middle of the roof slopes, melting snow and heavy rains cause constant leaks.

Repair was carried out at a temperature of + 5 ° C using two workers. Repair time - 6 hours. For this:

1. Prepared base: cleaned from contamination.

2. Rolls of rolls of multilayer insulating material in width, starting from the lower part of the roof up, providing a lateral overlap of the upper canvases to the lower at least 50 mm.

3. The joints were coated with a thin layer of solvent, for example, 646 solvent.

4. The canvas was mechanically fixed to the ceiling at the rate of one dowel facade 0.3-0.5 square meters. m (along the strip connecting the edges of the material, as the most durable place of the roofing carpet).

5. The facade dowel was closed with a multilayer insulating material with a size of 100 × 100 mm (or a strip along the entire length) to maintain the integrity of the surface).

6. Along the perimeter of the roof, wooden blocks were fastened to fix the insulating material.

As a result of the repair, they received waterproofing of the roof without joints, which meets the fire safety rules. During operation, the roof retains all waterproofing properties, has no damage and leaks. No additional work and expenses were made to maintain the roofing.

Example 2

Carried out the waterproofing of the roof of underground garages. Roof slope 2%. Area 1200 sq.m. The roof was covered with a roll material on a bituminous basis on a concrete base.

The work was carried out at a temperature of + 15 ° C, a team of five workers. Laying time - 26 hours.

Layed multilayer insulating material on an existing coating with an overlap of cloths of multilayer insulating material 500-550 mm, covered with ballast, namely crushed stone fractions of 20-40 mm at the rate of 50-80 kg / sq.m.

As a result, we received a waterproofing of the roof without joints that meets the fire safety rules. During operation, the roof retains all waterproofing properties, has no damage and leaks. No additional work and expenses were made to maintain the roofing.

Example 3

Carried out the repair of heating in the base. The mineral wool insulation was replaced with heat-insulating shells made of polyurethane foam with a diameter of 200 mm and a length of 1.5 m, followed by a protective coating of the outer surface with a multilayer insulating material.

On a straight pipeline section 420 m long above the ground at a height of 800 mm, three workers performed repairs in two shifts.

For this, the old insulation was dismantled, the shells made of polyurethane foam were installed to the pipe and fixed around the circumference with wire, they were wrapped along the length with insulating material with an overlap of the multilayer insulation material 100-200 mm thick, the joints were fixed with solvent B 646.

As a result, we obtained insulation of a heating main without joints that meets the fire safety rules. During operation, the insulation retains all hydro- and heat-insulating properties, has no damage and leaks. No additional work and expenses were made to maintain the roofing. Thanks to the use of the proposed multilayer insulating material, losses during the transfer of coolant decreased by 30%.

Claims (6)

1. A multilayer insulating material containing layers of a film of polyvinyl butyral, characterized in that a reinforcing layer is made between the layers of the film of polyvinyl butyral. 2. A multilayer insulating material according to claim 1, characterized in that the reinforcing layer is made of fiberglass. 3. The multilayer insulating material according to claim 1, characterized in that the reinforcing layer is made of a nonwoven polymer web. 4. The multilayer insulating material according to claim 1, characterized in that the reinforcing layer is made of a mesh of polymeric material. 5. The multilayer insulating material according to claim 1, characterized in that the reinforcing layer is made of woven polymeric material. 6. The multilayer insulating material according to claim 1, characterized in that it further comprises a heat-insulating layer made between the layers of the polyvinyl butyral film.