RU176404U1 - Double-sided adhesive insulation material - Google Patents

Abstract

The utility model relates to the field of construction and can be used for waterproofing walls and roofs. The task at hand is to increase the efficiency and manufacturability of insulating material. The expected technical result is the exclusion of the bulkiness of the insulating material and the reduction in the cost of glue and anti-adhesive material, reducing the laboriousness of fixing the insulating material; increase in the number of meters per roll. The proposed material is tear-resistant and quite elastic. The proposed roll of insulating material having a polymer base with double-sided adhesive, protected by a release material, is characterized in that a polypropylene sheet is used as a polymer base, on both sides of which on each edge one strip of glue is applied Ergotak, a protected tape made of a siliconized biaxially oriented polypropylene film. The width of the rolls of the proposed insulation about material from 1000 mm to 1600 mm; length of rolls up to 50 linear meters. The width of the adhesive strip is 35 mm, the width of the protective film is 50 mm. The adhesive strip is applied along the edge, from the edge of the canvas in 80 millimeters; a protective film is applied in 70 millimeters. The diameter of the roll is 160 mm with a fifty-meter winding of the material.

Description

The utility model relates to the field of construction and can be used for waterproofing walls and roofs.

Known roll material based on flexible graphite foil, on which an adhesive layer is applied and a plastic layer applied to said adhesive layer is selected from the group consisting of polyimide, polyethylene terephthalate (PET) and polyetheretherketone / utility model patent No. 92831, publ. 04/10/2010 /. This material is not technologically advanced due to the low availability of graphite foil and the insufficient reliability of fixing the material using a single-sided adhesive layer.

The closest to the proposed is a roll insulation material LINOTERM P2 - a material based on polyethylene foam with a double-sided adhesive layer protected by a release material (TU 2245-045-04696843-97 mtsk.mos.ru/Handlers/Files.ashx/Download?ID=11489 - Appendix). This material is not efficient enough and technologically advanced for a number of reasons: the bulkiness of the prototype material is due, firstly, to the nature of the base material - polyethylene foam and, secondly, the application of glue in the form of a layer on the entire surface of the base, which entails, in addition to significant glue costs and, accordingly, the release material, the bulkiness and the complexity of fixing the material, for example, on the surface of the insulated wall, especially with a significant width (up to 1200 mm) of the roll of insulating material; the bulkiness of the prototype material, in particular, is the reason for the small number of meters (up to 30 m) in a roll. The nature of the base material - polyethylene foam and the application of glue in the form of a layer on the entire surface of the base, in addition to bulkiness, also determine the insufficient tensile characteristics and elasticity of the prototype material.

The task at hand is to increase the efficiency and manufacturability of the insulating material. The expected technical result is the elimination of cumbersomeness and lower costs of glue and anti-adhesive material, reducing the complexity of fixing the material; increase in the number of meters per roll. The proposed material is tear resistant and quite flexible.

The problem is solved in that the proposed roll of insulating material having a polymer base with double-sided adhesive, protected by a release material, is characterized in that a polypropylene sheet is used as a polymer base, on both sides of which on one edge is applied one strip of Ergotak adhesive protected tape made of siliconized biaxially oriented polypropylene film.

Thus, the double-sided application of glue on a polypropylene fabric is carried out not on the entire surface of the fabric, but in the form of two strips: on one side of the fabric (for example, from the bottom) - one strip of glue - along one edge of the fabric, on the other side of the fabric (for example, with top) - the second strip of glue - on the other edge of the canvas. Both adhesive strips are protected by a removable tape made of siliconized biaxially oriented polypropylene film.

To do this, the drawing line of the polypropylene fabric (the plane of the fabric is parallel to the horizon) is equipped on both sides (above and below, but opposite to the different edges of the fabric) with adhesive heads of the adhesive apparatus and then also on both sides (above and below, but opposite to different edges of the fabric) - feed nodes through clamping shafts to each adhesive strip of a protective anti-adhesive siliconeized biaxially oriented polypropylene film.

Woven and non-woven ("spanbond") polypropylene materials are used as the basis of the proposed roll-on insulation material; laminated or non-laminated. In particular, the woven material from polypropylene is produced by Eurotex LLC, Oktyabrsky, in the amount of 4-5 million m ² monthly according to TU-5774-002-6717-8888-2016.

Technical characteristics of this material are as follows: polypropylene woven fabric, laminated; density - from 50 g / m ² to 150 g / m ² ; thickness - from 50 microns to 300 microns; tensile strength from 650 N / 5 cm; water resistance - not less than 1000 mm. water pillar; vapor permeability - vapor proof.

Laminated polypropylene woven fabric has high resistance to mechanical damage, resistance to climatic influences (operating temperature from minus 55 ° С to plus 100 ° С), high lifetime (50 years), resistance to microorganisms, can be used as temporary shelter for 3-4 months.

Siliconization of polymer films gives them the property of release, i.e. ability to interfere with bonding. The most common way to obtain such properties in polymer films is to treat their surfaces with organosilicon compounds - silicones.

Despite the existing variety of polymer films, not all species undergo the process of siliconeization. The most common types of polymer films suitable for siliconization are polyethylene terephthalate (PET) films and the more affordable polyethylene and biaxially oriented polypropylene (BOPP) films.

Siliconized polymer films are produced by large Russian manufacturers - LIKK and Galileo Nanotech (www.likk.ru; www.galileonano.ru). Especially in demand in the food industry.

The most attractive in their properties are BOPP films. In the production process, biaxially oriented polypropylene films are stretched in two mutually perpendicular directions, which ensures biaxial orientation of the polymer chains. Such a structure determines a number of interesting properties of BOPP:

- the same tensile strength in the longitudinal and transverse directions;

- tensile strength is about 4 times higher than the strength of irrigation films of a similar thickness;

- high resistance to the formation of a new gap and low to tearing force, if any;

- low elongation at break (polymer chains are already elongated during film production).

The main advantages of biaxially oriented polypropylene films:

- the ability to obtain films with a wide range of heat sealability;

- high mechanical strength, which allows to reduce the thickness of the film;

- low vapor permeability;

- the ability to create films with different gas barrier properties;

- translucency;

- shiny surface;

- the ability to maintain their properties at low temperatures;

- the possibility of applying a metal or polymer layer to the film;

- low density: only 0.9 g / cm ³ ; thus, BOPP films are lighter than all other common polymer films. For example: the density of polyethylene terephthalate (PET) is 1.4 g / cm ³ ; polyamide (PA) - 1.2 g / cm ³ ; high density polyethylene film (HDPE) - 0.96 g / cm ³ ; low density - 0.92 g / cm ³ ;

- low vapor permeability: the vapor permeability of the BOPP film is 3 times lower than that of a conventional polyethylene film, 5 times lower than that of polyethylene phthalate, and 6 times lower than that of polyvinyl chloride.

- Frost resistance: BOPP retains its properties at temperatures up to minus 50 ° C;

- Mechanical strength and stiffness: BOPP is superior in strength and stiffness to irrigated polyethylene films, PVC and polyamide and is not inferior even to polyethylene phthalate. This allows the use of BOPP films for the manufacture of siliconized tape.

- Stability of properties: BOPP retain mechanical strength, rigidity and impermeability in a wide temperature range and with any changes in humidity;

- Resistance to repeated excesses;

- BOPP-film can be coated with a thin layer of metal, or painted using special organic dyes;

- lack of smell, non-toxicity of BOPP.

Siliconized films are also non-toxic; do not pass moisture; protect against sticking. The thickness of the siliconized BOPP film is 12 microns. According to the information posted on the Galileo Nanotech website, at the request of the customer, the siliconized material can be cut into format rolls.

To apply the adhesive strip, it is proposed to apply adhesive based on synthetic rubbers, for example, Ergotak-430, Ergotak-431, manufactured by ERGOTEK company, Perm.

Ergotak-431 hot melt adhesive with residual constant stickiness has high adhesion to all types of film, woven, non-woven materials and other substrates.

Recommended operating temperature is 140-160 ° C.

Application method: using hot-melt adhesive speed machines (nozzle, nozzle, roller).

Physical properties:

yellow transparent color; softening temperature 80-85 ° C; density 0.9-1.1 g / cm ³ ;

Brookfield viscosity at 150 ° C 5000 mPa⋅s -7000 mPa⋅s

adhesion of the adhesive layer 180 ° C, after 24 hours: 25-30 N / inch; shear adhesion 40 ° C, 1 kg / 625 mm ² :> 24 h.

Adhesive Ergotak-430 has a high initial stickiness, is elastic, moisture resistant, non-toxic, has excellent heat resistance, frost resistance, which allows you to work up to minus 5 ° C.

Suitable for high speed cars.

The temperature of adhesion loss is at least + 72 ° C, which is very high and one of the important indicators when installing wind-, hydro-, vapor barrier films, membranes on facades and in the under-roof space of buildings and structures.

The glue consumption for double-sided application of an adhesive strip on a polypropylene base for the manufacture of the proposed insulation material is from 35 g / m ² . The application of the adhesive strip on a polypropylene base will be carried out by Eurotex LLC using a high-performance adhesive installation of 4-5 million m ² monthly. The adhesive strip is then closed with a removable protective release film made of siliconeized biaxially oriented polypropylene film.

The width of the rolls of the proposed insulating material varies from 1000 mm to 1600 mm (according to the prototype - up to 1200 mm). The length of the rolls is from 15 to 50 linear meters (up to 30 according to the prototype). The width of the adhesive strip is 35 mm, the width of the protective film is 50 mm. The adhesive strip is applied along the edge, from the edge of the canvas in 80 millimeters; a protective film is applied in 70 millimeters. The diameter of the roll is 160 mm with a fifty-meter winding of the material.

Thanks to the application of glue in the form of strips, the costs of both glue and anti-adhesive material are reduced compared to the prototype.

The application of the proposed roll of insulating material with double-sided application of the adhesive strip is as follows. The first piece of material is attached to an insulated surface, such as a wall, using a “lower” adhesive strip (applied along one edge of the first piece), freed from a removable protective tape. The next - second - piece of material is lapped to the first piece of material, namely to the "upper" adhesive strip of the first segment (applied along the other edge of the first segment), by combining with the "lower" adhesive strip of the second segment (applied along one edge of the second segment ); with the indicated combination of two adhesive strips of two pieces of material, of course, the combined adhesive strips are released from the removable protective tape. Further, for fastening the third segment of the material, the “upper” adhesive strip of the second segment (applied along the second edge of the second segment) is combined with the “lower” adhesive strip of the third segment (applied along one edge of the third segment), etc.

Such installation of material on an insulated surface by the method of “glue on glue” provides reliability, strength and tightness of insulation to prevent moisture, wind, snow from entering the internal structures of houses and buildings. The fastening of the proposed non-bulky material, for example, on the surface of the insulated wall, even with a significant roll width of the insulating material, is less labor intensive compared to the prototype.

Thus, the proposed roll of insulating material with double-sided application of the adhesive strip is more efficient and more technologically advanced than the prototype due to the elimination of cumbersome and lower costs of glue and anti-adhesive material, reducing the complexity of fixing the material; increase the number of meters per roll. The proposed material is tear resistant and quite flexible.

Claims (1)

Roll insulation material having a polymeric base with double-sided adhesive application, protected by a release material, characterized in that a polypropylene sheet is used as a polymeric base, on both sides of which, on different edges, is applied one strip of Ergotak adhesive protected by a tape made of siliconeized biaxially oriented polypropylene film.