EP2917397A1 - Semelle de fer à repasser comprenant un revêtement de protection en céramique non oxyde ou au moins partiellement non oxyde - Google Patents
Semelle de fer à repasser comprenant un revêtement de protection en céramique non oxyde ou au moins partiellement non oxydeInfo
- Publication number
- EP2917397A1 EP2917397A1 EP13805459.8A EP13805459A EP2917397A1 EP 2917397 A1 EP2917397 A1 EP 2917397A1 EP 13805459 A EP13805459 A EP 13805459A EP 2917397 A1 EP2917397 A1 EP 2917397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- polymer
- thin film
- iron soleplate
- iron
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F75/00—Hand irons
- D06F75/38—Sole plates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
Definitions
- Iron soleplate comprising a non-oxide or at least partially non-oxide ceramic protective coating
- the present invention generally relates to iron soles whose ironing surface is provided with a protective coating at least partially non-oxide, little sensitive to shocks and shelling, while having good sliding properties. .
- the present invention also relates to a method for covering the ironing surface of an iron soleplate.
- the iron soles are either aluminum (or aluminum alloy), may or may not be provided with an enamel protective coating, or stainless steel.
- stainless steel iron insoles are more resistant to shocks and are not affected by flaking. But these soles have slipping properties and resistance to scratching and micro scratching worse than enamel coated aluminum soles.
- One of the objectives of the present invention is to provide an iron sole that is insensitive to shocks and chipping, while having good sliding properties and resistance to scratching and micro scratching.
- the Applicant has developed a method of producing a ceramic coating at least partially non-oxide on an iron soleplate polymer preceramic (generally referred to by the acronym PDCs for "Polymer Derived Ceramics” ).
- PDCs Polymer Derived Ceramics
- Such a coating has, in addition to the aforementioned properties of slip, scratch resistance and micro-scratch and low sensitivity to shocks and chipping, can be achieved without generating high manufacturing costs.
- At least partially non-oxide ceramic material is understood to mean, within the meaning of the present invention, a ceramic material comprising a non-oxide portion representing at least 25% atomic percentage of the coating.
- silica SiO 2 As an example of a completely oxide material, mention may for example be made of silica SiO 2
- the present invention relates to an iron soleplate comprising a support having an ironing surface, said ironing surface being coated with a protective coating.
- the protective coating comprises at least one continuous thin film of non-oxide or at least partially non-oxide ceramic derived from polymer, the thin film forming the ironing surface.
- the thin film is made of ceramic derived from polymer, whether it be a non-oxide ceramic or an at least partially non-oxide ceramic.
- the protective coating of the iron soleplate according to the invention may comprise at least one continuous thin film of non-oxide ceramic derived from polymer or at least partially non-oxide derived from polymer, said thin film forming the ironing surface.
- the iron soleplate according to the invention provided with such a coating has good sliding properties on textiles, combined with good mechanical strength.
- the non-oxide or at least one non-oxide ceramic of the non-stick coating according to the invention is obtained from at least one preceramic polymer corresponding to the general formula (1): with:
- X denotes an element chosen from 0, B, N or C
- Z designating a metal element chosen from transition metals, silicon and aluminum
- R 1, R 1 , R 2 , R '2 denotes H or a hydrocarbon chain of alkyl, phenyl, acyl or aralkyl type.
- Such a preceramic polymer undergoes, after its forming on the substrate (in this case by deposition according to various techniques such as centrifugation or "spin-coating", spraying or soaking), a heat treatment step to ceramise the substrate.
- prepolymer that is, to convert the pre-ceramic prepolymer into a ceramic coating.
- the ceramization of the prepolymer of formula (1) makes it possible to produce non-oxide or at least partially non-oxide coatings of very high purity and having a homogeneous distribution of the elements even at the atomic scale. From such a prepolymer, it is possible to obtain coatings with a wide variety of chemical composition: it is thus possible to produce nitride, boride or carbide transition metal, silicon, aluminum coatings. Combinations of these different systems are also possible (eg SiBN, SiBCN, SiCO, SiBO, SiBOC, ).
- the continuous thin film of non-oxide or at least partially non-oxide ceramic has a thickness of between 0.5 and 50 ⁇ m, and preferably between 5 and 50 ⁇ m.
- the ceramic prepolymer route used in the context of the present invention makes it possible to deposit significant coating thicknesses and with relatively short cycle times. (Especially significantly shorter than by an equivalent method such as the PVD path, by which can be deposited, with reasonable and industrially realistic cycle times, coating thicknesses from
- an iron soleplate support of aluminum or stainless steel As a support used to make the iron soleplate according to the invention, it is advantageous to use an iron soleplate support of aluminum or stainless steel.
- the protective coating of the soleplate according to the invention may further comprise at least one non-oxide ceramic sublayer or at least partially non-oxide under the ceramic thin film.
- At least one of the underlayer and of said thin film may comprise at least one filler and / or at least one pigment.
- fillers that may be used in the context of the present invention (either in the underlayer or in the film), there may be mentioned particles of Al 2 O 3, SiC, Si 3 N 4 , B 4 C, TiC, TiB 2 , CrB 2 , ZrB 2 and mixtures thereof.
- the filler is present at a rate of at most 50% by weight relative to the total mass of the underlayer or film.
- fillers in the underlayer and / or in the thin film provides multiple advantages: it makes it possible to increase the resistance to scratching and micro-scratching, and to further improve the sliding properties of the protective coating on the textile.
- the thickness of the protective coating depends on the chemical nature of the thin film, but also the rate of incorporated filler.
- the present invention also relates to a method for covering the ironing surface of an iron soleplate, characterized in that it comprises the following steps: a) a step of supplying or producing an iron soleplate;
- a step of preparing a preceramic polymer from a molecular precursor of said polymer comprising suspending said molecular precursor in a fluid, which fluid may be an organic solvent or water, and then its polymerization to obtain a preceramic polymer composition;
- the support is as defined above.
- the preceramic polymer is also as defined above and corresponds to the general formula (1) defined above. It is obtained during step b) of the process of the invention from a molecular precursor of the polymer, which is chosen according to the chemical composition of the desired final ceramic.
- NbCls + Li Me 2 the term Me denoting a methyl group.
- N3 ⁇ 4 or N3 ⁇ 4R The direct reaction of NbCls with an amine (N3 ⁇ 4 or N3 ⁇ 4R) can also be envisaged.
- Cr (BH 4 ) 5 precursors can be used as molecular precursors. They can be synthesized from CrCl 3 + or NaBH 4 , or KBF4 or NH 3 BH 3 , all commercial precursors. These precursors of chromium boride are transposable to the T1B 2 or more generally XB 2 system , X being a transition metal. If one wishes to make a silicon carbide thin film, many precursors can be used depending on the nature of the targeted coating (silicon nitride, silicon carbide, silicon boronitride, silicon carbonitride, etc.). Many combinations are possible:
- a polycarbosilane may be used as molecular precursor
- a polycarbosiloxane may in particular be used as molecular precursor
- ⁇ for manufacturing a film of SIBO in particular can be used as a molecular precursor polyborosiloxane.
- Molecular precursors are suspended from said molecular precursor in a fluid, for example an organic solvent or water, to form a stable suspension. Additives are added in order to obtain a viscosity adapted to the shaping process used.
- a fluid for example an organic solvent or water
- This suspension is then applied to one of the faces of the support (step c) of the process according to the invention, to form a preceramic polymer layer covering the inner face of the support.
- This application can be carried out by spraying ("spray-coating"), dipping ("dip-coating”) or spin coating (“spin-coating”).
- the advantage of the preceramic polymer pathway lies in the fact that the starting material is a suspension of molecular precursor (s) whose chemical and rheological properties are such that they are compatible with a large number of industrial processes. formatting, such as those mentioned above.
- the preceramic polymer layer covering the ironing surface is subjected to a heat treatment e) appropriate (possibly preceded by a drying step), which completes the process of ceramizing the coating and allows to obtain a thin film of non-oxide ceramic derived from polymer.
- the advantage of a ceramization made from a pre-ceramic polymer thus lies in their relatively greater low synthesis temperature compared to a conventional method of sintering ceramic powder.
- the heat treatment step e) can be carried out in various ways, and in particular by pyrolysis in a resistive furnace at a temperature below 1000 ° C. or in a rapid annealing furnace (or RTA oven for "Rapid Thermal Annealing").
- the temperatures reached remain high during the pyrolysis allowing the conversion of the ceramic preceramic polymer (between 800 ° C. and 1200 ° C.), and the risks of damage and deformation of the substrate are therefore important.
- the heat treatment step will preferably be carried out in a fast annealing furnace (or RTA furnace) at a maximum temperature of 1350 ° C for a duration of less than 4 hours.
- a fast annealing furnace or RTA furnace
- the preceramic polymer layer receives the heat by absorption of the irradiation, and the substrate is then only heated by conduction, thus greatly limiting the temperature reached by the substrate.
- the heat treatment can be carried out under inert gas or reactive depending on the nature of the targeted ceramic.
- allyhydridopolycarbosilane marketed under the trade name AHPCS by Starfire Systems (for obtaining a thin film of SiC),
- Support stainless steel substrate, smooth or sandblasted.
- the deposition of a thin film of SiC on the stainless steel substrate is carried out as follows:
- the molecular precursor is dissolved in THF (tetrahydrofuran).
- THF tetrahydrofuran
- Other solvents, such as toluene can also be used.
- a concentration of 20% of precursor in the solvent makes it possible to obtain a coating without cracks. Beyond this value, there is observed on the final coating, after ceramization, very large porosities and cracking of the coating. Below this value, the topology of the coating is too close to that of the substrate and it is difficult to obtain the targeted thicknesses.
- the shaping is done by soaking ("dip coating"), the soaking time being set at 2 minutes. For longer soaking times, a greater film thickness would be obtained, which would be likely to cause the formation of pores and cracks in the coating during the rise in temperature. Several dipping steps are necessary to obtain a coating of sufficient thickness (of the order of 10 mm) and to limit cracking.
- the heat treatment for converting the ceramic preceramic polymer is carried out in a furnace in two stages, under air or under argon, depending on the case: ⁇
- ⁇ To obtain a SiC film, the process is as follows:
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Paints Or Removers (AREA)
- Irons (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1260516A FR2997708B1 (fr) | 2012-11-06 | 2012-11-06 | Semelle de fer a repasser comprenant un revetement de protection en ceramique non oxyde ou au moins partiellement non oxyde |
PCT/FR2013/052643 WO2014072634A1 (fr) | 2012-11-06 | 2013-11-06 | Semelle de fer à repasser comprenant un revêtement de protection en céramique non oxyde ou au moins partiellement non oxyde |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2917397A1 true EP2917397A1 (fr) | 2015-09-16 |
Family
ID=47741030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13805459.8A Pending EP2917397A1 (fr) | 2012-11-06 | 2013-11-06 | Semelle de fer à repasser comprenant un revêtement de protection en céramique non oxyde ou au moins partiellement non oxyde |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2917397A1 (fr) |
CN (1) | CN104769178B (fr) |
FR (1) | FR2997708B1 (fr) |
WO (1) | WO2014072634A1 (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5174975A (en) * | 1985-04-26 | 1992-12-29 | Sri International | Method of preparing metal carbides, nitrides, borides and the like |
US4826666A (en) * | 1985-04-26 | 1989-05-02 | Sri International | Method of preparing metal carbides and the like and precursors used in such method |
US4665637A (en) * | 1985-07-26 | 1987-05-19 | Braun Aktiengesellschaft | Sole plate coating for a fabric pressing device |
US4842888A (en) * | 1988-04-07 | 1989-06-27 | Dow Corning Corporation | Ceramic coatings from the pyrolysis in ammonia of mixtures of silicate esters and other metal oxide precursors |
US5183684A (en) * | 1989-11-20 | 1993-02-02 | Dow Corning Corporation | Single and multilayer coatings containing aluminum nitride |
US5114750A (en) * | 1990-11-06 | 1992-05-19 | The Dow Chemical Company | Tungsten and tungsten nitride coatings for metals and ceramics |
US6451377B1 (en) * | 1997-10-03 | 2002-09-17 | Southwest Research Institute | Methods for making high temperature coatings from precursor polymers to refractory metals carbides and metal borides |
FR2837220B1 (fr) * | 2002-03-13 | 2004-08-06 | Rowenta Werke Gmbh | Semelle de fer a surface durcie et revetue |
KR100927548B1 (ko) * | 2008-01-29 | 2009-11-20 | 주식회사 티씨케이 | 표면에 세라믹이 코팅된 금속 및 그 제조방법 |
-
2012
- 2012-11-06 FR FR1260516A patent/FR2997708B1/fr active Active
-
2013
- 2013-11-06 WO PCT/FR2013/052643 patent/WO2014072634A1/fr active Application Filing
- 2013-11-06 EP EP13805459.8A patent/EP2917397A1/fr active Pending
- 2013-11-06 CN CN201380057706.5A patent/CN104769178B/zh active Active
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2014072634A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014072634A1 (fr) | 2014-05-15 |
CN104769178A (zh) | 2015-07-08 |
FR2997708B1 (fr) | 2015-04-17 |
FR2997708A1 (fr) | 2014-05-09 |
CN104769178B (zh) | 2021-10-15 |
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