RU5194U1 - INSULATION MATERIAL - Google Patents

Abstract

An insulating material comprising a layer of non-woven material and a layer of vulcanized rubber composition based on ethylene propylene diene rubber located on one of its sides, characterized in that it further comprises an adhesive layer of a composition based on a polymer selected from the group consisting of butyl rubber, polyisobutylene and low molecular weight carbide rubber, moreover, the specified layer is located on the other side of the nonwoven material.

Description

Insulation material

The utility model relates to multilayer polymer insulating

materials intended, in particular, for the installation and repair of roofing

coatings, public and industrial buildings and structures,

operated in all climatic regions, as well as waterproofing

specified buildings and structures, pipelines, etc.

Known insulating material containing a base and applied to it

rubber composition of ethylene propylene rubber 1.

However, this material has low plasto-elastic properties and a large

shrinkage.

Also known is an insulating material that is closest to that offered by

technical dryness, containing a nonwoven fabric base and applied

on one side of the base layer of the rubber composition of vulcanized ethylene propylene (diene) rubber 2.

However, this material requires sophisticated technology when arranging coatings,

in particular, due to the need to use adhesives, for example, on

based on synthetic rubbers containing organic solvent, mastic,

which worsens the ecology of production and leads to the formation of defects

(swelling, unevenness of the adhesive layer).

The task was to create an insulating material without defects

increased durability, capable of direct mounting to

various substrates without the use of special adhesives

M.C. “B 32 V 25/10 E 04 D 5/10 According to the proposed technical solution, the insulating material containing a layer of non-woven material and a layer of vulcanized rubber composition based on ethylene propylene (diene) rubber, located on one of its sides, additionally contains an adhesive layer based on a polymer selected from the group: butyl rubber, polyisobutylene and low molecular weight carbochain rubber. The drawing shows a General view of the material in section. The waterproofing material includes a non-woven fabric layer 1 (base), on one side of which is a layer 2 of a vulcanized rubber composition based on ethylene-propylene (diene) rubber, and on the other a sticky layer 3 of a polymer composition selected from the group: butyl rubber, polyisobutylene low molecular weight rubber. The following is information confirming the feasibility of implementing a utility model. As the basis of the insulating material, any non-woven materials made from natural and chemical fibers without the use of weaving methods (knitting, piercing, needle-punched, glued) can be used. The rubber composition is prepared from ethylene-propylene (diene) rubbers, which include synthetic rubbers - products of copolymerization of ethylene with propylene (double copolymers of type SKEP) or ethylene with propylene and with a small amount of the third comonomer - diene with isolated double bonds (triple copolymers of the type SKEPT). These compositions may include conventional additives such as fillers, plasticizers, stabilizers, vulcanizing agents, vulcanization accelerators, dyes, etc.

Properties of insulating materials

The name of indicators

Suggested material

Tensile strength, MPa, n / m

Elongation at break,%, n / m

Water absorption in 24 hours,

%, n / a

The presence of defects within 1 year

operation,% of the area

Table

Famous material

4.0

4.0

250

250

1.0

0.5

25-30

3-5

The sticky layer is prepared from polymers also manufactured in industry:

polyisobutylene, butyl rubber (copolymer of isobutylene with isoprene),

low molecular weight carbochain rubbers, including SKEPT.

Both compositions are made using standard mixing equipment,

e.g. rubber mixer, rollers.

The insulating material is formed into a web (roll) on a known

roll equipment.

Vulcanization is carried out, for example, by a beam of accelerated electrons, on

ELV-6 accelerator to an absorbed dose of 100-130 kGy. Can be implemented and

thermal vulcanization.

To prevent sticking of the material in the roll onto the sticky layer,

laid release paper, plastic wrap or other

antiadhesive film material.

The thickness of the insulating material is 1-1.5 mm, the width in a roll of 900 - 1600 mm,

length 10-20 m.

Comparative tests of the proposed insulation material and

famous. The obtained technical characteristics are given in the table.

Thus, the proposed material has a high set of properties, not

inferior to the known in a number of indicators, but in contrast to the known

adhesion to the surface of various substrates.

Its use allows to simplify the technology of repair and manufacturing

coatings, for example, roofing due to the exclusion of the use of special

solvent-based mastic for bonding the material, which in turn

allows to improve the ecology of production.

Applicant:

Sources of information:

1. The author's certificate of the USSR 992531, cl. C08 L9 / 00.1981

2. Material rolled polymer roofing Elon. TU 21-5744710-514-92.

Claims (1)

An insulating material comprising a layer of nonwoven material and a layer of a vulcanized rubber composition based on ethylene propylene diene rubber located on one of its sides, characterized in that it further comprises an adhesive layer of a composition based on a polymer selected from the group consisting of butyl rubber, polyisobutylene and low molecular weight carbide rubber, moreover, the specified layer is located on the other side of the nonwoven material.