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WO2023075732A2 - Multi-purpose insulating material and production method thereof - Google Patents

Multi-purpose insulating material and production method thereof Download PDF

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Publication number
WO2023075732A2
WO2023075732A2 PCT/TR2022/051162 TR2022051162W WO2023075732A2 WO 2023075732 A2 WO2023075732 A2 WO 2023075732A2 TR 2022051162 W TR2022051162 W TR 2022051162W WO 2023075732 A2 WO2023075732 A2 WO 2023075732A2
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WO
WIPO (PCT)
Prior art keywords
insulating material
silicone foam
production method
mixture
forming
Prior art date
Application number
PCT/TR2022/051162
Other languages
French (fr)
Other versions
WO2023075732A3 (en
Inventor
Unsal KOLDEMIR
Original Assignee
Kordsa Teknik Tekstil A.S.
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
Priority claimed from TR2021/016619 external-priority patent/TR2021016619A2/en
Application filed by Kordsa Teknik Tekstil A.S. filed Critical Kordsa Teknik Tekstil A.S.
Publication of WO2023075732A2 publication Critical patent/WO2023075732A2/en
Publication of WO2023075732A3 publication Critical patent/WO2023075732A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
    • C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/142—Compounds containing oxygen but no halogen atom
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/026—Crosslinking before of after foaming
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04—Polysiloxanes

Definitions

  • the present invention relates to an insulating material which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, and to a production method of the said insulating material.
  • Insulation has an important role in terms of energy efficiency of buildings/ structures in the construction sector. Energy loss can be minimized thanks to insulation technologies. Insulating materials produced with appropriate methods provide good insulation performance and can therefore be long-lasting, cost-effective, environmentally friendly and healthy, local and sustainable. Within this context, heat and sound insulation is of great importance in terms of ensuring reasonable energy consumption, and adequate comfort and health conditions in dwellings, and the sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties of the insulating material are highly important.
  • the most used insulating materials against four different external factors such as heat, sound, water and fire are glass and rock wool, expanded or extended polystyrene, polyurethane foams and bitumen derivatives.
  • the materials used for sound and heat insulation are applied in 30-200 mm thick wall-mounted form or in the form of spraying.
  • rock and glass wool are applied in thicknesses of more than 3 centimeters to increase heat insulation, but their mechanical resistance weakens in thicknesses of more than 3 centimeters.
  • rock and glass wool materials with a thickness of more than 3 centimeters have no effect on water insulation.
  • Polystyrene foams which are used as insulating materials in the state-of-the-art, are effective in heat insulation, but they do not provide water insulation and likewise do not function in sound insulation. Moreover, the fire resistance of foam materials provided by these synthetic polymers is not in group A. In addition, chemicals which are very dangerous to human health, such as hydrogen cyanide, are released during combustion in polyurethane foams. As can be seen, the most used insulating materials have different application types, but they are sufficient against one or two different factors such as sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties, and are insufficient against other factors. In addition, mechanical properties also have individual properties in terms of human and environmental health.
  • the materials used for insulation cause many drawbacks during use.
  • the main drawbacks are that they are difficult to use in winter, the end products cause problems in terms of durability, they have low strength, it is easy for adverse health factors such as fungi and bacteria to grow, and they are low quality end products.
  • the application numbered JP11343681 in the state-of-the-art relates to an open-cell polyurethane foam insulating material used for insulating walls of buildings and the like, preventing condensation and the like, and a method for producing the same.
  • the said application discloses an insulating material in the form of a foam comprising open-cell polyurethane foam having a closed cell ratio of 10% or less.
  • the objective of the present invention is to provide a novel material which is used for insulation in structures such as buildings, constructions, and which can meet at least 3 different insulation factors such as sound insulation, thermal conductivity, water vapor permeability and/or adequate mechanical properties, and a production method of this material.
  • the objective of the present invention is to provide a fabric or fiber insulating material, which is environment and human friendly, whose performance is not affected by temperature, which is durable and flexible even at very low temperatures, scratch and tear resistant, and has high strength, and a production method of this material.
  • Figure 1 is a front view of the insulating material of the present invention in the form of a silicone-coated fiber.
  • Figure 2 is a front view of the insulating material of the present invention in the form of a silicon-coated fabric.
  • An insulating material (1) which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprises: - at least one fiber (2) or fabric material (3), and
  • silicone foam (4) which is coated on fiber or fabric material and comprises silanol (Momentive RTF7000A chemical), crosslinker Momentive SS4300c chemical and silica filler (Evonik Aerosil 300 hydrophilic fumed silica).
  • the insulating material (1) of the present invention consists of silicone foam (4) coated on a fabric (3) or silicone foam (4) coated on a fiber (2).
  • Silicone foam (4) comprises Momentive RTF7000A chemical (silanol), Momentive SS4300c chemical and silica filler (Evonik Aerosil 300 hydrophilic fumed silica).
  • the said fabric (3) can be nylon and polyester, and kratos fibers can be utilized in the fiber (2) and the fiber (2) or fabric (3) coated with silicone foam (4) is mechanically reinforced.
  • the insulating material (1) with silicone foam (4) provides good thermal insulation and self-extinguishes after flaming for a maximum of 3 seconds.
  • silicone foams (4) Since the water vapor permeability of silicone foams (4) is high, the water vapor permeability of the insulating material (1) is also high. In addition, since the sound absorption coefficients of silicone foam (4) are below 0.7 between 200-1200 Hz, the material (1) has high sound insulation properties. Silicone foams (4) are materials that are light, resistant to temperature, resistant to ozone and UV, elastic, difficult to burn, hardly flammable, moisture/water repellent, adhesive; they are not affected by aging, and their hardness can be adjusted as desired. Due to its innate structure, silicone foam (4) is a material with low temperature conductivity and low sound permeability.
  • an insulating material which is human and environment friendly, whose performance is not affected by temperature, which is durable and flexible even at very low temperatures, scratch and tear resistant, and has high strength has been formed with fabric or fibers coated with silicone foam (4).
  • methanol was used as a gasifying agent in the production of silicone foam (4) used in the insulating material (1), in the end-product, methanol is not present in the silicone foam (4) due to its volatile properties.
  • the insulating material (1) of the present invention has a structure in which there is a fiber or fabric in silicone polymers and the silica chemical used is bound to the polymer structure.
  • the production method of the insulating material which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprises the following process steps:
  • momentive silanol RTF7000A chemical
  • crosslinking silane Momentive SS4300c chemical
  • silica filler Euvonik Aerosil 300 hydrophilic fumed silica
  • thermoplastic fabric - while it is in viscous state, placing a second layer of thermoplastic fabric thereon,
  • the production method of the insulating material which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprises the following process steps:
  • the material comprising fiber is nylon, polyester fabric or KratosTM.
  • silicone foam of the present invention In the process of forming silicone foam of the present invention, first the main mixture base-Momentive RTF7000A chemical (silanol), then the crosslinker Momentive SS4300c chemical, silica filler (Evonik Aerosil 300 hydrophilic fumed silica) and finally methanol as gasifying agent were added. It was stirred in a plastic container to form a homogeneous mixture, preferably for 1 minute (30 seconds to 2 minutes). Immediately after the stirring process, the foam mixture was left in a free state and within approximately 3-5 minutes, the foam formed due to curing and outgassing in the form of bubbles was observed. The cured foam, which became solid, was kept for 2 days in room conditions at 22 degrees Celsius in a free state to ensure that the curing was completely finished.
  • main mixture base-Momentive RTF7000A chemical siilanol
  • silica filler Euvonik Aerosil 300 hydrophilic fumed silica
  • a mixture comprising silane as crosslinker and Pt catalyst is used.
  • the momentive SS4300c chemical which is added as a crosslinker, is added to the mixture at a ratio of 0.1% to 10% (20/1.5 g/g).
  • momentive silanol in a ratio of 7.5% is added to the mixture.
  • the silica filler (Evonik Aerosil 300 hydrophilic fumed silica) is added to the mixture at a ratio of 0.1% to 5% (20/ 0.5 g). In another embodiment of the invention, silica filler in a ratio of 1% is added to the mixture.
  • methanol is added to the mixture as a gasifying agent at a ratio of 0.1% to 20% (20/2 g). In another embodiment of the invention, methanol in a ratio of 10% is added to the mixture.
  • an HTV high temperature curing process is applied for the curing process. In the HTV method, high-temperature activated peroxide-type chemicals are used as reaction initiators and cross-linking reactions continue through the formation of Si-C-C bonds.
  • RTV curing at room temperature is applied for the curing process.
  • the hydrosilylation reaction is used.
  • silanes and vinylsilanes perform a cross-linking reaction by forming Si-C bonds, conventionally in the presence of Pt or Sn catalysts.
  • the condensation reactions of silanes and silanols are also utilized.
  • silanols and silanes react and hydrogen gas is released as a gasifier.
  • Another reaction that utilizes silanes is the Piers-Rubinsztajn (PR) reaction in which the strong Lewis acid B(C6F5)3 (BCF) is used ( Figure 2).
  • PR Piers-Rubinsztajn
  • insulating material Silicone coated fabric
  • the chemical materials forming silicone foam which are taken into a suitable mold are poured onto thermoplastic fabric (Polyester or nylon 6,6). While it is in viscous state, a second layer of thermoplastic fabric is placed thereon. While in this state, it is observed that the mixture forms foam on its own. The curing reactions are allowed to be completed for 48 hours at room temperature.
  • the chemicals forming silicone foam are mixed respectively in a container and microKRatos of 6 mm and 12 mm lengths are added. It is stirred before foaming begins and spread into the pre-prepared mold. While in this state, it is observed that the mixture forms foam on its own. The curing reactions are allowed to be completed for 48 hours at room temperature.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The present invention relates to a production method of the insulating material, which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprising the method steps of forming the mixture for silicone foam by adding silanol, a crosslinking chemical, a filler and a gasifying agent, pouring the chemical materials forming the silicone foam onto a fabric material, and keeping it at room temperature for curing reactions.

Description

DESCRIPTION
MULTI-PURPOSE INSULATING MATERIAL AND PRODUCTION METHOD THEREOF
Field of the Invention
The present invention relates to an insulating material which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, and to a production method of the said insulating material.
Background of the Invention
Insulation has an important role in terms of energy efficiency of buildings/ structures in the construction sector. Energy loss can be minimized thanks to insulation technologies. Insulating materials produced with appropriate methods provide good insulation performance and can therefore be long-lasting, cost-effective, environmentally friendly and healthy, local and sustainable. Within this context, heat and sound insulation is of great importance in terms of ensuring reasonable energy consumption, and adequate comfort and health conditions in dwellings, and the sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties of the insulating material are highly important.
In the state-of-the-art, the most used insulating materials against four different external factors such as heat, sound, water and fire are glass and rock wool, expanded or extended polystyrene, polyurethane foams and bitumen derivatives. The materials used for sound and heat insulation are applied in 30-200 mm thick wall-mounted form or in the form of spraying. Especially rock and glass wool are applied in thicknesses of more than 3 centimeters to increase heat insulation, but their mechanical resistance weakens in thicknesses of more than 3 centimeters. In addition, rock and glass wool materials with a thickness of more than 3 centimeters have no effect on water insulation. Polystyrene foams, which are used as insulating materials in the state-of-the-art, are effective in heat insulation, but they do not provide water insulation and likewise do not function in sound insulation. Moreover, the fire resistance of foam materials provided by these synthetic polymers is not in group A. In addition, chemicals which are very dangerous to human health, such as hydrogen cyanide, are released during combustion in polyurethane foams. As can be seen, the most used insulating materials have different application types, but they are sufficient against one or two different factors such as sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties, and are insufficient against other factors. In addition, mechanical properties also have individual properties in terms of human and environmental health.
Also, the materials used for insulation, mentioned above, cause many drawbacks during use. The main drawbacks are that they are difficult to use in winter, the end products cause problems in terms of durability, they have low strength, it is easy for adverse health factors such as fungi and bacteria to grow, and they are low quality end products.
The application numbered JP11343681 in the state-of-the-art relates to an open-cell polyurethane foam insulating material used for insulating walls of buildings and the like, preventing condensation and the like, and a method for producing the same. The said application discloses an insulating material in the form of a foam comprising open-cell polyurethane foam having a closed cell ratio of 10% or less.
Summary of the Invention
The objective of the present invention is to provide a novel material which is used for insulation in structures such as buildings, constructions, and which can meet at least 3 different insulation factors such as sound insulation, thermal conductivity, water vapor permeability and/or adequate mechanical properties, and a production method of this material.
The objective of the present invention is to provide a fabric or fiber insulating material, which is environment and human friendly, whose performance is not affected by temperature, which is durable and flexible even at very low temperatures, scratch and tear resistant, and has high strength, and a production method of this material.
Detailed Description of the Invention
The insulating material developed to fulfill the objectives of the present invention is illustrated in the accompanying figures, in which:
Figure 1. is a front view of the insulating material of the present invention in the form of a silicone-coated fiber.
Figure 2. is a front view of the insulating material of the present invention in the form of a silicon-coated fabric.
The parts in the figures are individually numbered and their equivalents are given below.
1. Insulating material
2. Fiber
3. Fabric
4. Silicone foam
5. Pore
An insulating material (1), which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprises: - at least one fiber (2) or fabric material (3), and
- silicone foam (4), which is coated on fiber or fabric material and comprises silanol (Momentive RTF7000A chemical), crosslinker Momentive SS4300c chemical and silica filler (Evonik Aerosil 300 hydrophilic fumed silica).
The insulating material (1) of the present invention consists of silicone foam (4) coated on a fabric (3) or silicone foam (4) coated on a fiber (2). Silicone foam (4) comprises Momentive RTF7000A chemical (silanol), Momentive SS4300c chemical and silica filler (Evonik Aerosil 300 hydrophilic fumed silica). The said fabric (3) can be nylon and polyester, and kratos fibers can be utilized in the fiber (2) and the fiber (2) or fabric (3) coated with silicone foam (4) is mechanically reinforced. Furthermore, the insulating material (1) with silicone foam (4) provides good thermal insulation and self-extinguishes after flaming for a maximum of 3 seconds. Since the water vapor permeability of silicone foams (4) is high, the water vapor permeability of the insulating material (1) is also high. In addition, since the sound absorption coefficients of silicone foam (4) are below 0.7 between 200-1200 Hz, the material (1) has high sound insulation properties. Silicone foams (4) are materials that are light, resistant to temperature, resistant to ozone and UV, elastic, difficult to burn, hardly flammable, moisture/water repellent, adhesive; they are not affected by aging, and their hardness can be adjusted as desired. Due to its innate structure, silicone foam (4) is a material with low temperature conductivity and low sound permeability. In addition to the above-mentioned properties, an insulating material which is human and environment friendly, whose performance is not affected by temperature, which is durable and flexible even at very low temperatures, scratch and tear resistant, and has high strength has been formed with fabric or fibers coated with silicone foam (4). Even though methanol was used as a gasifying agent in the production of silicone foam (4) used in the insulating material (1), in the end-product, methanol is not present in the silicone foam (4) due to its volatile properties. The insulating material (1) of the present invention has a structure in which there is a fiber or fabric in silicone polymers and the silica chemical used is bound to the polymer structure.
The production method of the insulating material, which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprises the following process steps:
- adding momentive silanol (RTF7000A chemical) for the main mixture, crosslinking silane (Momentive SS4300c chemical), silica filler (Evonik Aerosil 300 hydrophilic fumed silica) and methanol as gasifying agent and forming the mixture,
- pouring the chemical materials forming silicone foam onto a thermoplastic fabric,
- while it is in viscous state, placing a second layer of thermoplastic fabric thereon,
- keeping it at room temperature for curing reactions.
The production method of the insulating material, which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, comprises the following process steps:
- forming a mixture for silicone foam by adding silanol, a crosslinking chemical, a filler, and a gasifying agent,
- adding fiber-containing material into silicone foam,
- stirring it before foaming begins and spreading into the pre-prepared mold,
- keeping it for curing. In an embodiment of the invention, the material comprising fiber is nylon, polyester fabric or KratosTM.
In the process of forming silicone foam of the present invention, first the main mixture base-Momentive RTF7000A chemical (silanol), then the crosslinker Momentive SS4300c chemical, silica filler (Evonik Aerosil 300 hydrophilic fumed silica) and finally methanol as gasifying agent were added. It was stirred in a plastic container to form a homogeneous mixture, preferably for 1 minute (30 seconds to 2 minutes). Immediately after the stirring process, the foam mixture was left in a free state and within approximately 3-5 minutes, the foam formed due to curing and outgassing in the form of bubbles was observed. The cured foam, which became solid, was kept for 2 days in room conditions at 22 degrees Celsius in a free state to ensure that the curing was completely finished.
In an embodiment of the invention, a mixture comprising silane as crosslinker and Pt catalyst is used.
In an embodiment of the invention, the momentive SS4300c chemical, which is added as a crosslinker, is added to the mixture at a ratio of 0.1% to 10% (20/1.5 g/g). In another embodiment of the invention, momentive silanol in a ratio of 7.5% is added to the mixture.
In an embodiment of the invention, the silica filler (Evonik Aerosil 300 hydrophilic fumed silica) is added to the mixture at a ratio of 0.1% to 5% (20/ 0.5 g). In another embodiment of the invention, silica filler in a ratio of 1% is added to the mixture.
In an embodiment of the invention, methanol is added to the mixture as a gasifying agent at a ratio of 0.1% to 20% (20/2 g). In another embodiment of the invention, methanol in a ratio of 10% is added to the mixture. In an embodiment of the invention, an HTV high temperature curing process is applied for the curing process. In the HTV method, high-temperature activated peroxide-type chemicals are used as reaction initiators and cross-linking reactions continue through the formation of Si-C-C bonds.
In an embodiment of the invention, RTV curing at room temperature is applied for the curing process. In the RTV method, the hydrosilylation reaction is used. (Figure 1)
Gasification:
Figure imgf000008_0001
Figure 1 : Reactions that take place in the RTV process
In this reaction, silanes and vinylsilanes perform a cross-linking reaction by forming Si-C bonds, conventionally in the presence of Pt or Sn catalysts. In the RTV process, the condensation reactions of silanes and silanols are also utilized. In these reactions, silanols and silanes react and hydrogen gas is released as a gasifier. Furthermore, another reaction that utilizes silanes is the Piers-Rubinsztajn (PR) reaction in which the strong Lewis acid B(C6F5)3 (BCF) is used (Figure 2). In this method, which is used to produce polysiloxane at room temperature, it is necessary to provide anhydrous/dry environment with organic solvents while BCF, a heavy metal-free catalyst, is used.
Figure imgf000009_0001
Figure 2: An example of a Piers-Rubinsztajn reaction
Production method of insulating material (Silicone coated fabric): The chemical materials forming silicone foam which are taken into a suitable mold are poured onto thermoplastic fabric (Polyester or nylon 6,6). While it is in viscous state, a second layer of thermoplastic fabric is placed thereon. While in this state, it is observed that the mixture forms foam on its own. The curing reactions are allowed to be completed for 48 hours at room temperature.
Production method of insulating material (Silicone coated fiber):
The chemicals forming silicone foam are mixed respectively in a container and microKRatos of 6 mm and 12 mm lengths are added. It is stirred before foaming begins and spread into the pre-prepared mold. While in this state, it is observed that the mixture forms foam on its own. The curing reactions are allowed to be completed for 48 hours at room temperature.

Claims

CLAIMS A production method of the insulating material, which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, characterized by the following method steps:
- forming a mixture for silicone foam by adding silanol, a crosslinking chemical, a filler, and a gasifying agent,
- pouring the chemical mixture forming silicone foam onto a fabric material, and
- keeping it for curing reactions. A production method of the insulating material, which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, characterized by the following method steps:
- forming a mixture for silicone foam by adding silanol, a crosslinking chemical, a filler, and a gasifying agent,
- adding fiber-containing material into silicone foam,
- stirring it before foaming begins and spreading into the pre-prepared mold,
- keeping it for curing. An insulating material (1), which is used for insulation in structures such as buildings, constructions, and whose sound insulation, thermal conductivity, water vapor permeability and/or mechanical properties are improved, characterized by:
- at least one fiber (2) or fabric material (3), and
9 - silicone foam (4), which is coated on fiber (2) or fabric material (3) and comprises silanol, cross-linking chemical, silica filler. A production method of the insulating material according to claim 1, characterized by the method step of placing a second layer of fabric material onto a fabric material while it is in viscous state after the process step of pouring chemical materials forming silicone foam onto the fabric material. A production method of the insulating material according to claim 1 or 2, characterized by the method step of adding silanol, which is Base-Momentive RTF7000A, in the process step of forming a mixture for silicone foam. An insulating material (1) according to claim 3, characterized by the silicone foam (4) comprising silanol, which is Base Momentive RTF7000A. An insulating material (1) according to claim 3, characterized by the silicone foam (4) comprising cross-linker, which is Momentive SS4300c. An insulating material according to claim 1 or 2, characterized by the method step of adding cross-linker, which is Momentive SS4300c, in the process step of forming a mixture for silicone foam. A production method of the insulating material according to claim 1 or 2, characterized by the method step of adding filler, which is Evonik Aerosil 300 hydrophilic fumed silica, in the process step of forming a mixture for silicone foam. An insulating material (1) according to claim 3, characterized by the silicone foam (4) comprising filler, which is Evonik Aerosil 300 hydrophilic fumed silica.
11. A production method of the insulating material according to claim 1 or 2, characterized by adding gasifying agent, which is methanol, in the process step of forming a mixture for silicone foam.
12. A production method of the insulating material according to claim 1 or 2, characterized by the process steps of adding the following respectively in the process of forming silicone foam:
- first, the main mixture base-Momentive RTF7000A chemical (silanol),
- then cross-linker Momentive SS4300c chemical,
- silica filler (Evonik Aerosil 300 hydrophilic fumed silica), and
- finally, methanol as gasifying agent and forming the main mixture.
13. A production method of the insulating material according to claim 1 or 2, characterized by the process step of stirring the mixture for 30 seconds to 2 minutes to form a homogeneous mixture after the process step of forming the mixture for silicone foam.
14. A production method of the insulating material according to claim 1 or 2, characterized by the process step of keeping the cured foam, which becomes solid, in room conditions at 22 degrees Celsius for 2 days in a free state to ensure that the curing is completely finished.
15. A production method of the insulating material according to claim 1 or 2, characterized by adding the cross-linking chemical to the mixture at a ratio of 0.1% to 10% in the process step of forming the mixture for silicone foam.
16. An insulating material (1) according to claim 3, characterized by the silicone foam (4) comprising cross-linking chemical at a ratio of 0.1% to 10%.
17. A production method of the insulating material according to claim 1 or 2, characterized by adding silica filler to the mixture at a ratio of 0.1% to 5% in the process step of forming the mixture for silicone foam.
18. An insulating material (1) according to claim 3, characterized by the silicone foam (4) comprising silica filler at a ratio of 0.1% to 5%.
19. A production method of the insulating material according to claim 1 or 2, characterized by adding methanol to the mixture at a ratio of 0.1% to 20% in the process step of forming the mixture for silicone foam.
20. A production method of the insulating material according to claim 1 or 2, characterized by the process step of curing, which is the HTV high temperature curing process.
21. A production method of the insulating material according to claim 20, characterized by HTV curing method which uses high temperature activated peroxide type chemicals as reaction initiators and is in the form of Si-C-C bond formation for cross-linking reactions.
22. A production method of the insulating material according to claim 1 or 2, characterized by the process step of curing, which is the RTV high temperature curing process.
23. A production method of the insulating material according to claim 22, characterized by RTV curing method wherein hydrosilylation reaction is used.
24. A production method of the insulating material according to claim 23, characterized by the formation of the reaction by crosslinking of silanes and vinylsilanes by Si-C bonding in the presence of Pt or Sn catalysts.
25. A production method of the insulating material according to claim 2, characterized by the step of adding nylon, polyester fabric or KratosTM as a fiber-containing material into the silicone foam.
12 A production method of the insulating material according to claim 1, characterized by the step of pouring chemical materials forming silicone foam onto the fabric material, which is thermoplastic fabric.
13
PCT/TR2022/051162 2021-10-25 2022-10-19 Multi-purpose insulating material and production method thereof WO2023075732A2 (en)

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Publication number Priority date Publication date Assignee Title
GB2065661B (en) * 1979-12-17 1984-02-15 Gen Electric Silicone foam compositions with burn resistant properties
AU7390898A (en) * 1998-01-14 1999-08-02 Gore Enterprise Holdings, Inc. Waterproof and thermal barrier material
US20030124080A1 (en) * 2001-12-26 2003-07-03 Antoine Kawam Personal care products

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