RU173969U1 - Insulation material - Google Patents

Abstract

The utility model relates to the field of construction and can be used for waterproofing walls and roofs. The problem to be solved and the expected technical result are to increase the efficiency and manufacturability of the insulating material by eliminating the removal of the adhesive strip together with the protective tape when using available materials in the manufacture of the insulating material. The problem is solved in that the proposed roll of insulating material having a polymer base, along one side of which is applied a strip of glue based on synthetic rubber, closed with a removable protective tape, characterized in that the protective tape is made of a siliconized polymer film. The protective tape is preferably made of a siliconized biaxially oriented polypropylene film. Siliconization of polymer films gives them the property of release, i.e. ability to interfere with bonding. Additionally, flexographic printing can be applied to the surface of the obtained insulating material. A significant advantage of the proposed insulation material is that during the installation process when removing the protective siliconized polymer film, the adhesive strip remains completely on the polymer base.

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 convenient enough to use due to the complexity of its fastening.

Closest to the proposed is a roll of insulating material having a woven or non-woven polymer base, along one side of which an adhesive strip is applied (Mebax adhesive based on synthetic rubber), covered with a removable protective tape made of lavsan (PET) film with a silver-plated metallized coating / Utility Model Patent No. 158448, publ. 01/10/2016 /. The disadvantage of the insulating material prototype is that when removing the protective tape up to 10% of the adhesive strip is removed from the polymer base together with a protective PET film.

The task at hand is to increase the efficiency and manufacturability of the insulating material; The technical result is the exclusion of the removal of the adhesive strip together with the protective tape.

The problem is solved in that the proposed roll of insulation material having a polymer base, along one side of which is applied a strip of glue based on synthetic rubber, covered with a removable protective tape, characterized in that a polypropylene sheet is used as a polymer base, as a glue based on synthetic rubber is Ergotak glue, and the protective tape is made of a siliconeized biaxially oriented polypropylene film.

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 not only PET films, but also 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.

Woven and non-woven ("spunbond") polymeric materials, laminated or non-laminated, are used as the base of the proposed roll-on insulation material. 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 column; 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.

To apply the adhesive strip along one side of the polymer base web, it is proposed to apply glue based on synthetic rubbers, for example, Ergotak-430, Ergotak-431, manufactured by ERGOTEK, 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 adhesive adhesion 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 consumption of glue when applying the adhesive strip to the polymer base for the manufacture of the proposed insulation material is from 20 g / m ² . The application of the adhesive strip on a polymer base is carried out by Eurotex LLC using a high-performance adhesive installation of 4-5 million m ² monthly. The adhesive strip is then closed by a removable protective tape made of a siliconized polymer film, preferably a siliconeized biaxially oriented polypropylene film.

Additionally, flexographic printing can be applied to the surface of the obtained insulating material.

A significant advantage of the proposed insulation material is that during the installation process when removing the protective siliconized polymer film, the adhesive strip remains completely on the polymer base.

Thus, the proposed roll of insulating material having a polypropylene sheet as the base, along one side of which is a strip of adhesive based on synthetic rubber Ergotak, covered with a removable protective tape made of siliconeized biaxially oriented polypropylene film, more efficient and more technological than the prototype insulation material for by eliminating the removal of the adhesive strip together with a removable protective tape.

Claims (1)

Roll insulation material having a polymer base, along one side of which a strip of glue based on synthetic rubber is applied, covered with a removable protective tape, characterized in that a polypropylene cloth is used as a polymer base, Ergotak glue is used as a glue based on synthetic rubber, and protective glue the tape is made of siliconeized biaxially oriented polypropylene film.