EP4634282A1 - Versiegelung verwendbar als wasserstoff-barriere - Google Patents
Versiegelung verwendbar als wasserstoff-barriereInfo
- Publication number
- EP4634282A1 EP4634282A1 EP22802060.8A EP22802060A EP4634282A1 EP 4634282 A1 EP4634282 A1 EP 4634282A1 EP 22802060 A EP22802060 A EP 22802060A EP 4634282 A1 EP4634282 A1 EP 4634282A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- matrix material
- nano
- silicon dioxide
- base material
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Definitions
- Sealing can be used as a hydrogen barrier
- the invention relates to a seal, a method for producing the seal, a matrix material for fiber composite materials, and a method for producing the matrix material, wherein the seal and the matrix material can be used as a hydrogen barrier.
- Hydrogen can be produced in places with high levels of renewable energy and transported from there to metropolitan areas where the energy is primarily consumed.
- the energy can also be temporarily stored or stored in the form of hydrogen.
- this transport and storage requires containers and pipelines through which the hydrogen is transported or in which the hydrogen is stored.
- Such containers and pipelines are usually made of steel or can be made of fiber composite materials.
- the hydrogen atom is the smallest atom in the periodic table, so it places special demands on the materials from which the containers or pipes for the hydrogen are made, as its size tends to penetrate materials such as steel or fiber composite materials.
- the extent to which a material tends to absorb or allow hydrogen to pass through can be determined using permeability measurements according to DIN EN ISO 17081 and according to EP 3 553 210 Al.
- a material sample is placed between two electrodes, whereby a current flow occurs between the two electrodes when hydrogen diffuses through the material sample. The higher the recorded current, the higher the hydrogen diffusion through the material sample and vice versa. With steel and fiber composite materials, there is significant hydrogen diffusion through the material.
- the underlying object of the invention is therefore to provide a seal and a matrix material for fiber-reinforced plastics which have the highest possible diffusion resistance or permeability resistance to hydrogen in order to increase the service life of containers and pipelines, and at the same time are inexpensive to produce. and are easy to process.
- the seal according to the invention which can be used as a hydrogen barrier, with a base material, is characterized in that the seal comprises plasticizers, nano-silicon dioxide, aluminum powder and zinc powder.
- the seal is suitable as a barrier to hydrogen, that is, the hydrogen essentially cannot pass through the seal. Essentially not getting through means, in the sense of the application, that the hydrogen passing through the seal corresponds to less than 5%, preferably less than 2%, more preferably less than 1% of the amount of hydrogen that would otherwise enter the surface to be sealed without sealing would have penetrated.
- the seal can be used as a barrier for hydrogen because the hydrogen molecules are adsorbed by the seal and/or because they cannot penetrate the seal material in the first place. This means that materials such as steel or fiber composite materials can be sealed with the seal so that hydrogen can no longer reach the steel or fiber composite material via the sealed surface, and damage to the materials caused by the hydrogen can be prevented.
- a dispersion base which is often used in facade paints, for example, can serve as the base material. This means that the sealant can be applied very easily to the surfaces to be protected, as is usual with facade painting. When the seal is dry, the protective effect is fully present, but can also be present in a liquid state that has not yet dried.
- the layer thickness should be between 0.2 mm and 1 mm, preferably 0.5 mm, to ensure a certain mechanical stability and mechanical stress resistance of the seal. Two successive coats of 0.25 mm each have proven successful in practice. For the protective effect, the surface of the seal only needs to be closed, while the layer thickness can be very small, for example less than 0.2 mm.
- the core idea of the invention is that, in addition to aluminum powder, zinc powder, nano silicon dioxide and plasticizers are added to the seal, so that after the seal has dried, a coherent layer remains on the surface to be sealed, which itself has a very low, preferably no permeability to hydrogen and at the same time has essentially no cracks or continuous pores through which the hydrogen could reach the surface to be protected.
- the plasticizer serves to give the matrix of the seal a certain elasticity so that fewer or, if possible, no cracks and pores arise when the seal dries.
- the nano silicon dioxide also plays a crucial role in ensuring that fewer pores and cracks form when the seal dries.
- the aluminum powder and the zinc powder form plate-like structures that act as a kind of reinforcement to reinforce the sealing matrix. These aluminum and zinc structures ultimately make the seal impermeable to hydrogen.
- the base material comprises pure acrylate and/or styrene acrylate and/or styrene butadiene.
- the base material preferably consists solely of one of these materials or a combination thereof. Pure acrylate has become popular as a base for facade paints because it is less harmful to health than, for example, nitro-based paints or alkyd resin paints, and also has very good properties such as UV resistance and hiding power. Due to the wide use of pure acrylic, it is also cheap and available in good quality.
- this preferably means a dispersion of methyl acrylate and water, which has a solids content of 35-45%, preferably 40%, and preferably an emulsifier such as pemulene at 2-4%, preferably contains 3%.
- styrene acrylate and styrene butadiene are also suitable. These substances give the sealing greater mechanical strength and can be used, for example, where surfaces that are exposed to greater mechanical stress need to be sealed.
- the plasticizer includes Plastilit 3060 from BASF and/or APEO-free polypropylene glycol alkyl phenyl ether.
- the plasticizer preferably consists solely of one of these substances or a combination thereof.
- the nano-silicon dioxide preferably essentially completely, has a particle size of less than 10 nm.
- Nano silicon dioxide is characterized by a particle size in the nano range.
- the particles have a particle size of less than 10 nm. Since powders generally have a grain size distribution, the particles essentially have a particle size below 10 nm, which means, for example, that at least 90% of the particles have a particle size below 10 nm.
- the aluminum powder has an average grain size of 0.1 - 50 pm, preferably an average grain size of 30 pm.
- the average grain size describes the grain size that is most often present within the powder. For example, larger and smaller grains are present in a Gaussian distribution with smaller proportions.
- the zinc powder has an average grain size of 0.1 - 50 pm, preferably an average grain size of 50 pm.
- the seal has substances in the specified proportions: a. 50 - 90% pure acrylate and/or b. 1 - 3% white spirit and/or c. 0.1 - 1.0% preservatives and/or d. 1 - 5% nano silicon dioxide and/or e. 3 - 10% plasticizer and/or f. 1 - 10% aluminum powder and/or g. 1 - 10% zinc powder and/or h. 0.5 - 30% water.
- a seal with the proportions of the respective substances specified above is very suitable as a hydrogen barrier.
- the white spirit is a mineral spirit and is used to reduce the setting temperature of the seal.
- Preventol phenylpehnol
- phenylpehnol can be used as a preservative.
- a composition of the sealing with the following substances in the following proportions has proven to be particularly preferred: a. 80% pure acrylate and/or b. 2% white spirit and/or c. 0.3% preservative and/or d. 2% nano silicon dioxide and/or e. 5% plasticizer and/or f. 2% aluminum powder and/or g. 5% zinc powder and/or h. 3.7% water.
- Such a seal has proven to be completely impermeable to hydrogen in laboratory tests according to DIN EN ISO 17081 and according to EP 3 553 210 Al.
- a sealed substrate according to the invention with a seal is characterized in that the seal comprises plasticizers, nano-silicon dioxide, aluminum powder and zinc powder.
- the seal is arranged on a surface of the substrate with a layer thickness of at least 0.2 mm.
- the seal has preferably been applied in two layers, so that the dried seal on the substrate is formed from two layers of at least 0.1 mm each.
- the substrate comprises iron, and/or steel and/or fiber-reinforced plastic.
- the substrate preferably consists of one or more of the aforementioned materials.
- the substrate preferably forms a pipeline or container for transporting or storing hydrogen.
- the substrate can also form all elements that would come into contact with the hydrogen in pipeline construction or container construction, such as valves, sleeves or fittings.
- a method according to the invention for producing the seal usable as a hydrogen barrier with a base material is also claimed.
- the process is characterized by the fact that plasticizers, nano-silicon dioxide, aluminum powder and zinc powder are added to the base material in a mixing process with mechanical mixing.
- the individual components of the seal are gradually added to the base material with continuous stirring by an agitator and mixed together. It is important that the mechanical mixing is carried out as foam-free as possible.
- mechanical mixing takes place under vacuum when producing the seal.
- the previously mechanically mixed materials (base material, plasticizer, nano-silicon dioxide, aluminum powder and zinc powder, and possibly other additives) are fed to a colloidator for processing.
- base material plasticizer, nano-silicon dioxide, aluminum powder and zinc powder, and possibly other additives
- the components of the seal are mixed as finely as possible and so the aluminum powder and the zinc powder can form plate-like structures while the seal is setting, which lead to reinforcement of the seal.
- a matrix material for a fiber composite material can also be used as a hydrogen barrier, with a base material, and which is characterized in that the matrix material comprises plasticizers, nano-silicon dioxide, aluminum powder and zinc powder.
- the plasticizer, the nano-silicon dioxide, the aluminum powder and the zinc powder also lead to impermeability to hydrogen in a matrix material for fiber composite materials.
- a fiber composite material with the matrix material according to the invention is in itself impermeable to hydrogen and does not need to be protected against the penetration of hydrogen with an additional seal.
- the base material comprises a 2K material.
- 2K materials have the advantage that the setting process can be precisely coordinated and there is often very good solvent resistance after setting.
- the base material comprises pure acrylate.
- Epoxy resin is widely used as a matrix material and has proven itself. However, since epoxy resin becomes brittle when it comes into contact with hydrogen and also tends to form pores and cracks when it sets, a different base material must be used. It has come about issued that pure acrylate can be used as a base material for the matrix material and can be made impermeable to hydrogen by the additives according to the invention.
- a fiber composite plastic according to the invention comprises a fiber material and a matrix material and is characterized in that the matrix material comprises plasticizers, nano-silicon dioxide, aluminum powder and zinc powder.
- the fiber material is arranged embedded in the matrix material.
- the fiber material is essentially completely surrounded by the matrix material, whereby essentially completely in the sense of the application means that the fiber material does not necessarily have to be surrounded by matrix material, for example at its ends on subsequently cut edges of a component made of the fiber composite plastic must.
- the fiber material comprises glass fibers, and/or carbon fibers, and/or Kevlar fibers and/or natural fibers, and/or metallic fibers.
- the fiber material preferably consists of one or more of the aforementioned materials.
- a method according to the invention for producing a matrix material for a fiber composite material usable as a hydrogen barrier, with a base material is characterized in that the base material is supplied with plasticizers, nano-silicon dioxide, aluminum powder and zinc powder in a mixing process with mechanical mixing becomes.
- mechanical mixing takes place under vacuum during the production of the matrix material.
- mechanical mixing it is important that as far as possible no air bubbles are introduced into the matrix material, as these lead to pores in the matrix material. It is therefore advantageous if the mechanical mixing takes place under vacuum so that no air bubbles are mixed into the matrix material. It can also be helpful if, after mechanical mixing, any air bubbles that may have been mixed in are removed from the matrix material by applying a vacuum.
- the previously mechanically mixed materials base material, plasticizer, nano-silicon dioxide, aluminum powder and zinc powder, and possibly other additives
- the aluminum powder and the zinc powder can form plate-like structures while the seal is setting, which lead to reinforcement of the seal.
- FIG. 1 shows a sealed substrate with a substrate in the form of a steel tube with a seal according to the invention arranged on its inside
- Figure 2 shows a fiber composite plastic with a fiber material embedded in a matrix material according to the invention
- Figure 3 shows a sealed substrate made of steel with a seal according to the invention arranged on one side.
- Figure 1 shows a sealed substrate with a substrate 1 in the form of a steel pipe with a seal 2 arranged on the inside of the steel pipe.
- the seal 2 is applied in a thin layer compared to the wall of the steel pipe, its thickness being 0.2 mm is, while the wall of the steel pipe is 3 mm. No hydrogen can get through the seal 2, so that the inside of the steel pipe cannot come into contact with the hydrogen. This means that no hydrogen can escape through the steel pipe into the environment.
- Figure 2 shows a fiber composite plastic with a fiber material 3 embedded in a matrix material 4.
- the matrix material 4 completely surrounds the fibers of the fiber material 3 and is chemically hardened, so that a me- mechanically stable fiber composite plastic is formed from the fiber material 3 and the matrix material.
- Figure 3 shows a sealed substrate 1 made of steel with a seal 2 according to the invention arranged on one side.
- the seal 2 was applied to one side of the substrate 1 made of steel in two layers, each with a layer thickness of approximately 0.1 mm.
- the seal has a composition with the following substances in the following proportions: a. 80% pure acrylate and/or b. 2% white spirit and/or c. 0.3% preservative and/or d. 2% nano silicon dioxide and/or e. 5% plasticizer and/or f. 2% aluminum powder and/or g. 5% zinc powder and/or h. 3.7% water.
- the seal 1 has proven to be completely impermeable to hydrogen in the laboratory tests carried out.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022121004 | 2022-08-19 | ||
| DE102022122802.9A DE102022122802A1 (de) | 2022-08-19 | 2022-09-08 | Versiegelung verwendbar als Wasserstoff-Barriere |
| PCT/EP2022/078047 WO2024037728A1 (de) | 2022-08-19 | 2022-10-10 | Versiegelung verwendbar als wasserstoff-barriere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4634282A1 true EP4634282A1 (de) | 2025-10-22 |
Family
ID=84332421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22802060.8A Pending EP4634282A1 (de) | 2022-08-19 | 2022-10-10 | Versiegelung verwendbar als wasserstoff-barriere |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4634282A1 (de) |
| JP (1) | JP2025531677A (de) |
| AU (1) | AU2022474324A1 (de) |
| MA (1) | MA70759A1 (de) |
| MX (1) | MX2025001988A (de) |
| WO (1) | WO2024037728A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5728383B2 (ja) * | 2008-09-19 | 2015-06-03 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンHenkel AG & Co.KGaA | イソシアネート系強靱化剤を含んでなるベンゾオキサジン系組成物 |
| EP3553210B8 (de) | 2018-04-12 | 2021-10-27 | Dr.Ing. Max Schlötter GmbH & Co. KG | Verfahren und verwendung einer vorrichtung zur elektrochemischen messung von wasserstoffpermeation |
| CN113698719A (zh) * | 2021-09-01 | 2021-11-26 | 上海安赢机械科技有限公司 | 一种新型的耐35Mpa高压氢气氟橡胶密封圈材料 |
| CN114605884A (zh) * | 2022-03-14 | 2022-06-10 | 清大赛思迪新材料科技(北京)有限公司 | 一种垃圾或生物燃料锅炉防腐封接涂料制备与封接方法 |
-
2022
- 2022-10-10 AU AU2022474324A patent/AU2022474324A1/en active Pending
- 2022-10-10 JP JP2025510306A patent/JP2025531677A/ja active Pending
- 2022-10-10 EP EP22802060.8A patent/EP4634282A1/de active Pending
- 2022-10-10 WO PCT/EP2022/078047 patent/WO2024037728A1/de not_active Ceased
- 2022-10-10 MA MA70759A patent/MA70759A1/fr unknown
-
2025
- 2025-02-17 MX MX2025001988A patent/MX2025001988A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX2025001988A (es) | 2025-05-02 |
| WO2024037728A1 (de) | 2024-02-22 |
| MA70759A1 (fr) | 2025-12-31 |
| JP2025531677A (ja) | 2025-09-25 |
| AU2022474324A1 (en) | 2025-03-06 |
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Owner name: TRITON HYDROGEN LTD. |