EP1751203A1 - Revetement thermo-isolant en polyurethanne - Google Patents

Revetement thermo-isolant en polyurethanne

Info

Publication number
EP1751203A1
EP1751203A1 EP05747859A EP05747859A EP1751203A1 EP 1751203 A1 EP1751203 A1 EP 1751203A1 EP 05747859 A EP05747859 A EP 05747859A EP 05747859 A EP05747859 A EP 05747859A EP 1751203 A1 EP1751203 A1 EP 1751203A1
Authority
EP
European Patent Office
Prior art keywords
insulating material
plastic
insulating
insulation
elastomer layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05747859A
Other languages
German (de)
English (en)
Inventor
Rainer Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bemeka Technologies-Transfer GmbH
Original Assignee
Bemeka Technologies-Transfer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bemeka Technologies-Transfer GmbH filed Critical Bemeka Technologies-Transfer GmbH
Publication of EP1751203A1 publication Critical patent/EP1751203A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/02—Polyureas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • F16L58/1072—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sprayed layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2150/00—Compositions for coatings
    • C08G2150/50—Compositions for coatings applied by spraying at least two streams of reaction components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2330/00—Thermal insulation material
    • C08G2330/50—Evacuated open-celled polymer material

Definitions

  • the invention is directed to an insulating and / or insulating material, in particular thermal insulation material, preferably for covering / sheathing pipelines, in particular gas pipes or water pipes or ventilation and / or air conditioning ducts or the like, and for coating and / or producing transport and / or Catering boxes with a plastic coating.
  • the invention is directed to a method for sealing and / or wrapping and / or coating insulation, thermal insulation and / or insulating material, in particular a pipeline, in particular gas pipes or water pipes, or ventilation and / or air-conditioning enclosing or sheathing insulation -, thermal insulation and / or insulating material and for coating catering and / or transport boxes at least partially forming insulating, thermal and / or insulating material, in particular foam insulation or styrofoam, by means of a plastic coating.
  • the invention relates to the use of an exothermic self-reaction from liquid to solid, self-reactive two-component plastic based on polyurethane and / or polyurea for the formation of a permanently elastic elastomer layer in an insulating, thermal insulation and / or insulating material and for implementation the method for sealing or wrapping and / or coating insulation, thermal insulation and / or insulating material.
  • the insulating material When using thermal insulation materials consisting of glass or rock wool as the insulating material, e.g. for gas or water pipes, ventilation and / or air conditioning systems, the insulating material is usually enclosed in a sheet metal jacket to protect against atmospheric stress.
  • the individual sheets can be folded, soldered or screwed together. Due to the technology currently in use, seams are inevitable. In the area of this formed seam there may then be leaks in the casing come. There is a risk of moisture entering the thermal insulation material, which can lead to it rotting. There is also the risk that it will corrode and destroy the actual fluid-carrying line.
  • the sheet metal cladding material is quite valuable in some areas, so it is stolen. But even without leaks, condensate formation within the sheet metal jacket occurs due to the fact that the dew point is undershot, which inevitably leads to an uncontrolled further rotting of the insulation and the sheet metal jacket from the inside.
  • a generic insulation and / or insulating material is known from DE 26 33 325 A1.
  • This document discloses a coated insulating material made of mineral insulation wool with a welded-on layer of glass fabric, on which a coating made of a thermoplastic polyurethane dispersion is then also applied. This material is wrapped around pipes to form overlap areas. The areas that overlap in the installation position are then welded to one another to form a closure seam.
  • a polyurethane dispersion Polyurethane dispersions are not or hardly weatherproof and are therefore not suitable for the insulation of cables exposed to outdoor weather conditions.
  • An aqueous coating system is known from DE 198 18 312 A1, in which dry, manageable surfaces are produced by UV curing of components containing (meth) acryloyl groups.
  • the aqueous coating system contains an aqueous binder, for which purpose resin dispersions customary in aqueous two-component polyurethane coating technology can be used.
  • This coating system should be used for the production of coatings on materials such as wood, metals and plastics. Use on insulation and / or insulating material is not disclosed.
  • the UV curing required also speaks against this.
  • the invention has for its object to overcome the aforementioned disadvantages of the prior art.
  • the invention has for its object to provide a solution that enables a permanent, protective coating of insulation, thermal insulation and / or insulating material, preferably for the sheathing of pipelines or ventilation and / or air conditioning systems.
  • the coating comprises a seamless, permanently elastic elastomer layer, in particular consisting of a seamless, permanently elastic elastomer layer which, at least essentially, consists of one, initially liquid applied to the insulation, thermal insulation and / or insulating material, is formed by exothermic self-reaction from liquid to solid, self-reactive two-component plastic based on polyurethane and / or polyurea.
  • the object is achieved according to the invention in that the insulating, thermal insulation and / or insulating material a liquid is applied seamlessly and at least essentially across the board by exothermic self-reaction from liquid to solid, self-reactive, based on a polyurethane and / or polyurea system and a permanently elastic elastomer layer is formed.
  • the invention is therefore characterized in that an intrinsically reactive two-component plastic is applied as a coating directly to the insulating material.
  • an intrinsically reactive two-component plastic is applied as a coating directly to the insulating material.
  • Insulating materials of all kinds for example insulating sheaths of gas pipes or water pipes, ventilation and air conditioning ducts as well as transport boxes and catering boxes can be effectively protected against all influences regardless of their use inside or outside buildings. Since the coated insulating and / or insulating material does not require any further metal sheathing, the risk of theft of the metal is also avoided.
  • an easy on-site repair option is provided by applying liquid plastic.
  • a particularly advantageous development and refinement of the method according to the invention is that the two-component plastic in the installation position of the insulation, thermal insulation and / or insulation material enveloping or sheathing the pipeline or the ventilation and / or air-conditioning duct is seamless and covers the entire surface applied and a seamless, permanently elastic elastomer outer coating is formed.
  • an outer layer is applied which permanently protects the insulation material and which no longer has any weak points such as seams, screw connections or folds.
  • the coating is applied only as a coat of paint, there is also no need for equipment such as welding machines or metal processing devices, since these are no longer necessary.
  • insulated or insulated pipelines or ventilation and / or air-conditioning ducts can be provided with a protective coating faster and less labor-intensive.
  • a single work step is sufficient to apply the plastic to the insulation and / or insulation material by simply spreading / spraying, which then forms elastic elastomer layer. This also facilitates repairs of the coated material that may be due later, which can be done by simply repainting or re-applying.
  • the above advantages can be achieved in particular in accordance with the embodiment of the method according to the invention in that the two-component plastic, in the installation position forming the catering and / or transport box, is directed towards the goods to be transported and / or or exposed surfaces of the insulation, thermal insulation and / or insulating material is applied.
  • the invention further provides that the self-reactive curing process is at least essentially completed within two to ten, preferably four to eight seconds, reaction time.
  • a self-reactive system that has become a permanently elastic elastomer layer during this time can be processed particularly well.
  • plastic or the two-component plastic system based on polyurethane and / or polyurea develops such a temperature that the exothermic intrinsically reactive curing process takes place at temperatures between 50 ° C. and 80 ° C., in particular 60 ° C. and 70 ° C starts and / or expires, which also distinguishes the invention.
  • the coating offers adequate protection for the insulating and / or insulating material when the elastomer layer has a thickness of 0.1 to 10 mm, in particular 0.5 to 7 mm, preferably 1 to 3 mm, which also distinguishes the invention.
  • a particularly advantageous two-component plastic system can be achieved in that the two-component plastic contains isocyanate, in particular polyisocyanate, and as a hardener polyol, in particular polyester polyol or polyether. Furthermore, the two-component plastic should be selected so that the elastomer layer is breathable and water-vapor-permeable but waterproof, which is also provided by the invention.
  • the coating is carried out in such a way that the coating seamlessly covers areas of the insulation, thermal insulation and / or insulation material that abut one another, in particular form a joint edge or overlap.
  • the coating comprises or is applied to a primer layer.
  • a primer layer it may be necessary to apply a primer layer so that the two-component plastic adheres sufficiently to the surface of the insulating and / or insulating material.
  • the insulating and / or insulating material can be an insulating material, mineral wool, glass wool, rock wool and / or a foam insulating material such as foam or styrofoam, in particular for transport and / or catering boxes.
  • the invention also provides in the development that the elastomer layer comprises a class B2 fire-retardant plastic, in particular consists of such a plastic.
  • the elastomer layer can also comprise an antibacterial, in particular metallic silver particles, preferably containing nanosilver, and / or fungicidal plastic, in particular consist of such a plastic. Furthermore, in an embodiment of the invention it is possible for the elastomer layer to comprise a UV-stable and chemical-resistant plastic, in particular consisting of such a plastic.
  • the antibacterial and / or fungicidal effect is one that is determined according to the drinking water, food, feed and / or WHG (Water Resources Act) approval.
  • the two-component plastic is applied in a flowable manner, so that the invention is further characterized in that the elastomer layer comprises a plastic that can be applied by airless spraying, two-component high-pressure processing, dipping, casting and / or by hand, in particular from such a plastic.
  • the invention provides that the elastomer layer comprises a plastic, in particular consists of a plastic that is still flexible and / or elastic even at very low temperatures.
  • the invention provides for the solution of the above object the use of an exothermic self-reaction from liquid to solid, self-reactive two-component plastic based on polyurethane and / or polyurea to form a permanently elastic elastomer layer in an insulating and / or insulating material according to a of claims 1 to 15.
  • the coated materials are optimally protected against corrosion by the invention.
  • the coating is extremely strong, resistant and versatile.
  • the plastic coating can also function as a topcoat.
  • the processing is possible using hand, airless and two-component high-pressure systems in a workshop or on site and regardless of climatic conditions. With the coating, sheaths can be produced while saving labor, transport and material costs.
  • the plastic coating according to the invention is resistant to rot, wear-resistant and is characterized by a high tensile force.
  • the design of the sealing coating as UV-stable, antibacterial, fungicidal, safe for drinking water, food-safe and / or feed-safe makes it ecologically advantageous to reuse objects which have the insulating and / or insulating material coated according to the invention or the insulating and / or Insulation material possible.
  • the two-component reactive coating formed from the two-component plastic is, for example, a mechanically high-quality, highly elastic polyurea elastomer, which is produced from two storage-stable and highly reactive raw material components by spraying or casting at room temperature. Both raw material components are solvent-free.
  • the binders are polyamines and polyisocyanate.
  • the processing temperature of the liquid, flowable coating material for forming the elastomer layer on the insulation and / or insulating material is 50 ° Celsius to 70 ° Celsius. While the self-reactive setting times are 4 to 8 seconds, the final properties of the coating are reached after curing for 5 days at 20 ° Celsius.
  • a corresponding product manufactured by Eclatin AG, Solothurn, is available on the market under the name Corodur SV 90.
  • the processing of the two-component plastic to form the permanently elastic elastomer coating takes place, for example, with a two-component high-pressure spraying system using the airless process, by means of which the plastic is applied to the respective insulation and / or insulating material and then a seamless, permanently elastic jacket that forms on or on the insulation and / or insulation material.
  • the material adheres to the surface and does not flow.
  • the two components of the elastomer system based on polyurethane or polyurea are separated from the two-component system at a temperature of 60 ° Celsius and led to the spray gun through a heated hose package. In the spray gun, the two components are under a pressure of 140 to 190 bar mixed in countercurrent or static mixing.
  • elastomers can be processed largely independently of the environmental parameters, ie independently of environmental influences.
  • a primer to the coating surface before the liquid elastomer plastic is applied. Priming can also be carried out using the airless method.
  • the components to be mixed are in separate lines, each opening separately into a common mixing chamber, at a pressure of 100 to 150 bar and a temperature of 50 ° C and 80 ° C.
  • the mixing chamber which is essentially in the form of a channel or a pipe, is essentially filled and closed by a nozzle needle which also closes the openings of the lines of the polyol and polyisocyanate components in the mixing chamber, the nozzle needle also closing a nozzle outlet opening of the mixing chamber.
  • This mixing chamber formed in a mixing head and having a nozzle needle, is started when the mixing head is actuated by pulling the nozzle needle back behind the lateral openings of the component feed lines, so that these opening openings and the nozzle outlet opening are released.
  • the components now flow into the mixing chamber with the pressure and temperature present and emerge from the nozzle outlet opening of the mixing chamber.
  • the special internal geometry of the mixing chamber results in a rotating mixing jet, which fans out into a spray jet at the tear-off edge, ie the outer edge of the nozzle outlet opening.
  • repair systems are made available which, in addition to the two-component plastic, provide the tools required to apply them, such as spatulas or brushes, and thus repair repair points in the event of damage without the need to provide Enable machine technology.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Thermal Insulation (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un matériau calorifuge et/ou isolant, en particulier un matériau thermo-isolant, de préférence pour l'enveloppage/recouvrement de conduits tubulaires, en particulier de conduites de gaz ou d'eau ou de canaux de ventilation et/ou de climatisation ou analogues, ainsi que pour le revêtement et/ou la production de conteneurs de transport et/ou de conteneurs de restauration, matériau comportant un revêtement présentant une matière plastique. L'invention a pour but de fournir des moyens permettant d'obtenir un revêtement protecteur durable en un matériau calorifuge, thermo-isolant et/ou isolant, de préférence pour l'enveloppage de conduits tubulaires ou de canaux de ventilation et/ou de climatisation. A cet effet, l'invention est caractérisée en ce que le revêtement comprend une couche élastomère continue, d'élasticité permanente, en particulier une couche élastomère formée, au moins essentiellement, d'une matière plastique à deux composants, à base de polyuréthanne et/ou de polyurée qui est tout d'abord appliquée à l'état liquide sur le matériau isolant et/ou thermo-isolant, pour passer ensuite, de manière auto-réactive exothermique, de l'état liquide à l'état solide.
EP05747859A 2004-04-28 2005-04-25 Revetement thermo-isolant en polyurethanne Withdrawn EP1751203A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410020936 DE102004020936A1 (de) 2004-04-28 2004-04-28 Nahtlose, feuerhemmende Kunststoffbeschichtung für Wärmedämmmaterial- Isolierungen und Cateringboxen Isodur als Dichtung gegen alle einwirkenden Einflüsse
PCT/EP2005/004394 WO2005105878A1 (fr) 2004-04-28 2005-04-25 Revetement thermo-isolant en polyurethanne

Publications (1)

Publication Number Publication Date
EP1751203A1 true EP1751203A1 (fr) 2007-02-14

Family

ID=34969191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05747859A Withdrawn EP1751203A1 (fr) 2004-04-28 2005-04-25 Revetement thermo-isolant en polyurethanne

Country Status (3)

Country Link
EP (1) EP1751203A1 (fr)
DE (2) DE202004021245U1 (fr)
WO (1) WO2005105878A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109724232A (zh) * 2019-02-20 2019-05-07 珠海格力电器股份有限公司 空调外壳、空调外壳的制造工艺方法以及空调器

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CN100386559C (zh) * 2005-11-23 2008-05-07 吉林石油集团有限责任公司 硬质聚氨酯聚苯乙烯泡沫塑料复合保温管壳
DE102006058596A1 (de) * 2006-12-11 2008-06-12 Carl Freudenberg Kg Dispersion und Verfahren zur Behandlung von Oberflächen
DE102009039288B4 (de) * 2009-04-20 2014-02-13 Schomburg Gmbh & Co. Kg Verfahren zur Kriechstromunterbrechung und/oder Streustromisolierung
CN107903520A (zh) * 2017-11-22 2018-04-13 杭州富阳鼎创科技有限公司 保温塑料管道及其制备方法

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DK142064B (da) * 1978-02-28 1980-08-18 Rockwool Int Mineraluldplade til termisk eller akustisk isolering.
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FR2816031B1 (fr) * 2000-10-27 2003-06-06 Atofina Composition isolante de base de gel elastomere polyurethane et son utilisation
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109724232A (zh) * 2019-02-20 2019-05-07 珠海格力电器股份有限公司 空调外壳、空调外壳的制造工艺方法以及空调器

Also Published As

Publication number Publication date
DE102004020936A1 (de) 2005-12-01
DE202004021245U1 (de) 2007-07-19
WO2005105878A1 (fr) 2005-11-10

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