EP1242195A2 - Verfahren zum herstellen einer antihaftbeschichtung, antihaftbeschichtung und verwendung einer antihaftbeschichtung - Google Patents
Verfahren zum herstellen einer antihaftbeschichtung, antihaftbeschichtung und verwendung einer antihaftbeschichtungInfo
- Publication number
- EP1242195A2 EP1242195A2 EP00991647A EP00991647A EP1242195A2 EP 1242195 A2 EP1242195 A2 EP 1242195A2 EP 00991647 A EP00991647 A EP 00991647A EP 00991647 A EP00991647 A EP 00991647A EP 1242195 A2 EP1242195 A2 EP 1242195A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stick coating
- substrate
- layer
- base layer
- plastic 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 50
- 239000011248 coating agent Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000000181 anti-adherent effect Effects 0.000 title abstract description 7
- 239000003911 antiadherent Substances 0.000 title abstract 6
- 239000004033 plastic Substances 0.000 claims abstract description 49
- 229920003023 plastic Polymers 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 235000013305 food Nutrition 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 23
- 230000001070 adhesive effect Effects 0.000 claims description 23
- 229920002313 fluoropolymer Polymers 0.000 claims description 18
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 13
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 13
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 12
- 239000004811 fluoropolymer Substances 0.000 claims description 12
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 11
- 229920002647 polyamide Polymers 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 5
- JMGNVALALWCTLC-UHFFFAOYSA-N 1-fluoro-2-(2-fluoroethenoxy)ethene Chemical compound FC=COC=CF JMGNVALALWCTLC-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000010285 flame spraying Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 1
- 239000000470 constituent Substances 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 54
- 240000002853 Nelumbo nucifera Species 0.000 description 8
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 8
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 6
- 239000000123 paper Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- CDAOWUNZBZEBDA-UHFFFAOYSA-N 1-fluoro-2-(2-fluorophenoxy)benzene Chemical compound FC1=CC=CC=C1OC1=CC=CC=C1F CDAOWUNZBZEBDA-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000209447 Nelumbo Species 0.000 description 1
- 235000005807 Nelumbo Nutrition 0.000 description 1
- 101100273965 Solanum lycopersicum HCR9-0 gene Proteins 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
- B05D5/086—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers having an anchoring layer
Definitions
- the invention relates to a method for producing a non-stick coating with a low-adhesion surface and to the non-stick coating itself and uses of this non-stick coating.
- a non-stick coating means a layer structure which, according to the invention, is such that it is particularly suitable, for example, for rollers or other machine parts in the adhesive, rubber and / or paint processing industry.
- This is particularly relevant where certain surface areas, for example of labels, adhesive tapes, diapers and other products of the paper, adhesive, lacquer and rubber industries, should have the property that adhesive or other sticky media do not adhere there; this allows deliberately limited adhesive areas to be created while the neighboring areas can not stick. That is, the adhesive or other sticky media can be applied by machine in a targeted and localized manner.
- the correspondingly coated tools such as rollers in the paper industry for producing multilayer or laminated paper, remain glue-free.
- Non-stick coatings of the type mentioned are known. They are based on the so-called lotus effect in accordance with the objective type. Certain plant leaves, namely the leaves of the lotus flower (Nelumbo nucitera), are not smooth in the microscopic range, but have a surface with regular micro elevations. This configuration ensures that water drops pick up and remove dirt particles when they roll off. This ensures that the surface of the leaf of the lotus flower is always kept clean.
- EP 0 485 801 B1 discloses a heat exchanger which has a multiplicity of plate-shaped fins. A mixture consisting of a solution containing a silicone resin compound and finely divided inorganic particles is applied to the fin surface. Silicone is used as the base layer. It is also provided there that the surface of the layer has regularly distributed micro elevations.
- the invention is therefore based on the object, a method for producing a non-stick coating and a non-stick coating to create, which avoids the aforementioned disadvantages and at the same time maintains the advantages described.
- the non-stick coating should therefore have the lotus effect, ie have the double structure with micro elevations. At the same time, however, the coating should be resistant to solvents and corrosion and also suitable for use in the food industry.
- the surface of the layer is provided with a plurality of substantially regularly distributed micro elevations by adding components to the plastic material before application to the substrate, which both prevent the plastic material from running when it is processed and also form the formation of essentially regularly distributed ones Favor micro-surveys,
- a base layer is first applied to the substrate such that it has a largely regular surface structure.
- the idea of the invention is based on the fact that on a substrate, the surface of which can be structured or receives a surface structure by applying a base layer, a plastic layer is applied.
- This layer has a microstructure, which is held in position by the inclusions introduced into the plastic material. The addition of the components does not cause the surface to run, which would make it smooth.
- the components which work best in this regard are the preferably used silicon carbide (SiC) or similar materials, the polyphenylene sulfide (PPS) and / or the polyamide (PA). These components ensure that even in a sintering process, the surface does not become uniform, but that the surface retains the microstructure.
- a base layer is first applied to the substrate and then the layer of plastic material is applied to this.
- the base layer is applied to the substrate so that it has a largely regular surface structure.
- Fluoropolymer is the most suitable plastic material for the coating. These are, in particular, polytetrafluoroethylene (PTFE), a mixture (PFA) of tetrafluoroethylene and fluorophenyl ether or a tetrafluoroethylene / hexafluoropropylene copolymer (FEP). However, it can also be a mixture of at least two components of PTFE, PFA and FEP. A particularly hard bond results if the layer of plastic material is sintered on the substrate or on the base layer.
- PTFE polytetrafluoroethylene
- PFA mixture
- FEP tetrafluoroethylene / hexafluoropropylene copolymer
- a particularly hard bond results if the layer of plastic material is sintered on the substrate or on the base layer.
- the sintering process is preferably carried out at a temperature at which the plastic melts in the layer on the substrate or on the base layer, but does not yet flow; a temperature between 340 ° C and 400 ° C is suitable for the materials mentioned.
- the sintering process itself takes between 3 and 60 minutes.
- the base layer can be formed like a knob.
- the substrate For the purpose of good preparation of the substrate, it is provided that it is sandblasted before applying the base layer or before applying the layer of plastic material. Alternatively, it can be etched.
- the preferred non-stick coating with a low-adhesion surface has:
- a structured substrate with a layer of at least one plastic material the surface of the layer has a multiplicity of essentially regularly distributed micro elevations
- the plastic material having inorganic or organic constituents which both prevent the plastic material from running when it is processed and also promote the formation of essentially regularly distributed micro-surveys
- a base layer is arranged between the substrate and the plastic layer, which has a largely regular surface structure.
- This construction also reflects the basic idea of the invention already mentioned above: a plastic film is applied to the structured base, which has a microstructure; this is held in position by the inclusions introduced into the plastic material.
- a base layer is arranged between the substrate and the layer of plastic material; this has a largely regular surface structure.
- the plastic material is preferably again a fluoropolymer, namely polytetrafluoroethylene (PTFE), a mixture (PFA) of tetrafluoroethylene and fluorovinyl ether, tetrafluoroethylene / hexafluoropropylene copolymer (FEP) or a mixture of min- at least two components from PTFE, PFA and FEP.
- PTFE polytetrafluoroethylene
- PFA mixture
- FEP tetrafluoroethylene / hexafluoropropylene copolymer
- a fluorinated vinyl ether is, for example, a perfluorinated vinyl ether of the formula
- CF 2 CF-0 -CF2-CF-O- CF 2 -CF 2 -CF 3 CF 3
- Silicon carbide (SiC) or similar materials are suitable as inorganic constituents; Polyphenylene sulfide (PPS), polyamide (PA) and / or other heat-stable plastics are preferably provided as organic constituents.
- the grain size of the components is advantageously between 2 and 200 ⁇ m; they are preferably added in a proportion of 3 to 30 percent by weight in the plastic material.
- the base layer can consist of steel, in particular of chromium-nickel steel, or of ceramic material, in particular of tungsten carbide or aluminum oxide; it should preferably have a roughness of 1 to 30 ⁇ m RA. Furthermore, it can have a knob-like design.
- the substrate can consist of metal, ceramic or plastic and have a roughness of 3 to 20 ⁇ m RA.
- a plurality of plastic layers arranged one above the other can be applied to the substrate or to the surface of the base layer.
- the height of the applied layer or Layers above the surface of the substrate are between 25 and 100 ⁇ m, preferably 50 ⁇ m.
- the proposed non-stick coating is preferably used as a surface material for rollers for the processing of adhesives.
- it is contemplated to use them for rollers for applying adhesives to foils or paper.
- rollers for the application of adhesives to defined areas of diapers.
- the coating can advantageously be used on rollers for the application of adhesives to rubber surfaces, in particular tires.
- Another preferred use is the use of rollers for applying adhesives in the food industry.
- Figure 1 is a schematic section through a layer structure.
- FIG. 2 shows a detailed illustration of the detail "A" from FIG. 1;
- Fig. 3 shows an alternative to Fig. 1 layer structure without a base layer. Ways of Carrying Out the Invention
- a layer structure with a low-adhesion surface is sketched in FIG.
- the non-stick coating 1 is extremely resistant to adhesion of adhesives and other sticky media.
- the layer structure is used in particular for rollers for processing adhesives. Since the low-adhesion surface areas - as sketched - prevent adhesion of adhesives, this means that the correspondingly designed surfaces of a roller at least make the transfer of adhesive more difficult, so that the corresponding area to be rolled remains free or poor of adhesive and the rollers themselves do not pollute.
- the layer structure 1 consists of a substrate 2 as a carrier element. This substrate 2 must first be degreased before further processing; then it can be pre-treated with sandblasting to ensure that the subsequent layers adhere well. A base layer 3 is then applied to the substrate 2.
- the base layer can consist of metallic or ceramic material and can be applied by flame spraying, arc spraying, plasma or high-speed spraying.
- the base layer 3, as can be clearly seen in FIG. 1, has a nub-like surface structure 4.
- a layer 5 of plastic is then applied to this.
- a fluoroplastic is preferably used, the components in the form of silicon carbide (SiC) or similar materials, polyphenylene sulfide (PPS) or polyamide (PA) are added.
- the grain size of the constituents (additives) in the case of polyphenylene sulfide is approximately 30 ⁇ m; With silicon carbide, the grain size is approx. 3 ⁇ m.
- the constituents mentioned are added to the fluoroplastic in an amount of approximately 20 percent by weight.
- the entire layer structure that is applied to the substrate 2 has a height h of approximately 50 ⁇ m.
- the fluoroplastic is then sintered in at approx. 360 ° C.
- a microstructure is created as shown enlarged for detail "A" in FIG. 1 in FIG. 2.
- the surface of the plastic layer 5 has a multiplicity of uniformly distributed micro elevations 6.
- FIG. 3 A configuration corresponding to FIG. 1 is outlined in FIG. 3. It can be seen here that the layer of plastic material is applied directly to the surface substrate 2 - without an intermediate or base layer 3.
- the water contact angle is the angle that the flanks of a resting water drop form at the point of contact with the subsurface. The larger the angle, the better the non-stick effect of the material.
- fluoroplastic layer consisting of a PFA / FEP / PTFE dispersion, in which an addition of silicon carbide, polyphenylene sulfide and / or polyamide is added; Grain size of the additive: between 3 and 30 ⁇ m; Quantity added: approx. 20 percent by weight;
- the non-stick coating described is used - as already mentioned - primarily in deflection rollers in the adhesive industry, for. B. for the production of adhesive films (Tesa film). Furthermore, by using such appropriately prepared rollers in diaper production, the area to be provided with adhesive can be delimited from the areas to be kept free thereof. Furthermore, a variety of other areas of application are conceivable (e.g. paper and film production, printing industry, rubber processing, etc.).
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19963670 | 1999-12-29 | ||
DE19963670A DE19963670C2 (de) | 1999-12-29 | 1999-12-29 | Verfahren zur Herstellung einer Antihaftbeschichtung, Antihaftbeschichtung und Verwendung einer Antihaftbeschichtung |
PCT/EP2000/013313 WO2001049424A2 (de) | 1999-12-29 | 2000-12-28 | Verfahren zum herstellen einer antihaftbeschichtung, antihaftbeschichtung und verwendung einer antihaftbeschichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1242195A2 true EP1242195A2 (de) | 2002-09-25 |
EP1242195B1 EP1242195B1 (de) | 2003-11-19 |
Family
ID=7934931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00991647A Expired - Lifetime EP1242195B1 (de) | 1999-12-29 | 2000-12-28 | Verfahren zum herstellen einer antihaftbeschichtung, antihaftbeschichtung und verwendung einer antihaftbeschichtung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1242195B1 (de) |
AT (1) | ATE254511T1 (de) |
DE (2) | DE19963670C2 (de) |
WO (1) | WO2001049424A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170129198A1 (en) * | 2014-06-12 | 2017-05-11 | Bridgestone Corporation | Tire building drum |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5469701A (en) * | 2000-03-20 | 2001-10-03 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Surface, method for the production thereof and an object provided with said surface |
DE20308021U1 (de) | 2003-05-22 | 2003-09-18 | Gebr. Bellmer GmbH + Co KG Maschinenfabrik, 75223 Niefern-Öschelbronn | Förderelement zum Transport eines Suspensionsstroms |
DE102005037338A1 (de) * | 2005-08-04 | 2007-02-08 | Starnberger Beschichtungen Gmbh | Antihaftbeschichtung, Verfahren zu dessen Herstellung und antihaftbeschichtete Substratmaterialien |
US8354160B2 (en) | 2006-06-23 | 2013-01-15 | 3M Innovative Properties Company | Articles having durable hydrophobic surfaces |
DE102009049137A1 (de) * | 2009-10-12 | 2011-04-14 | Rhenotherm Kunststoffbeschichtungs Gmbh | Beschichtungsaufbau |
WO2020126355A1 (en) | 2018-12-20 | 2020-06-25 | Arlanxeo Deutschland Gmbh | Cutting tool and method for setting a target weight |
GB2582751B (en) | 2019-03-29 | 2021-07-07 | Thermo Fisher Scient Ecublens Sarl | Improved spark stand for optical emission spectrometry |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3644211A1 (de) * | 1985-12-24 | 1987-08-27 | Braun Ag | Buegeleisensohle |
US5181558A (en) * | 1990-11-13 | 1993-01-26 | Matsushita Refrigeration Company | Heat exchanger |
DE4113211A1 (de) * | 1991-04-23 | 1992-10-29 | Winfried Heinzel | Verfahren zum beschichten von haus- und kuechengeraetschaften |
GB9222275D0 (en) * | 1992-10-23 | 1992-12-09 | Meyer Manuf Co Ltd | Cookware and a method of forming same |
DE4323117C1 (de) * | 1993-07-10 | 1995-03-09 | Ptg Plasma Oberflaechentech | Verfahren zum Beschichten von Haus- und Küchengerätschaften und Haus- und Küchengerätschaft |
EP0719594A1 (de) * | 1994-12-27 | 1996-07-03 | Stefan Hort | Verfahren zum Aufbringen einer Beschichtung auf einem Gegenstand, insbesondere einem Küchengegenstand, sowie derart beschichteter Gegenstand |
-
1999
- 1999-12-29 DE DE19963670A patent/DE19963670C2/de not_active Expired - Fee Related
-
2000
- 2000-12-28 AT AT00991647T patent/ATE254511T1/de not_active IP Right Cessation
- 2000-12-28 WO PCT/EP2000/013313 patent/WO2001049424A2/de active Search and Examination
- 2000-12-28 DE DE50004528T patent/DE50004528D1/de not_active Expired - Lifetime
- 2000-12-28 EP EP00991647A patent/EP1242195B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0149424A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170129198A1 (en) * | 2014-06-12 | 2017-05-11 | Bridgestone Corporation | Tire building drum |
Also Published As
Publication number | Publication date |
---|---|
DE19963670C2 (de) | 2003-03-06 |
DE50004528D1 (de) | 2003-12-24 |
DE19963670A1 (de) | 2001-07-12 |
EP1242195B1 (de) | 2003-11-19 |
WO2001049424A3 (de) | 2002-02-14 |
ATE254511T1 (de) | 2003-12-15 |
WO2001049424A2 (de) | 2001-07-12 |
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