DE1069040B - Process for the production of corrosion-bonding coatings from thermosetting synthetic resins containing fillers on metals - Google Patents
Process for the production of corrosion-bonding coatings from thermosetting synthetic resins containing fillers on metalsInfo
- Publication number
- DE1069040B DE1069040B DENDAT1069040D DE1069040DA DE1069040B DE 1069040 B DE1069040 B DE 1069040B DE NDAT1069040 D DENDAT1069040 D DE NDAT1069040D DE 1069040D A DE1069040D A DE 1069040DA DE 1069040 B DE1069040 B DE 1069040B
- Authority
- DE
- Germany
- Prior art keywords
- thermosetting
- metals
- corrosion
- thermosetting synthetic
- synthetic resins
- 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
- 239000002184 metal Substances 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 title claims description 11
- 229920003002 synthetic resin Polymers 0.000 title claims description 11
- 239000000057 synthetic resin Substances 0.000 title claims description 11
- 229920001187 thermosetting polymer Polymers 0.000 title claims description 7
- 239000000945 filler Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 150000002739 metals Chemical class 0.000 title claims description 4
- 239000007859 condensation product Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000003449 preventive Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 210000003298 Dental Enamel Anatomy 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 210000002268 Wool Anatomy 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- -1 enamel Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
- ULEFFCDROVNTRO-UHFFFAOYSA-N trimagnesium;disodium;dihydroxy(oxo)silane;iron(3+) Chemical compound [Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Fe+3].[Fe+3].O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O ULEFFCDROVNTRO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Verfahren zur Herstellung korrosionsverhindernder Überzüge aus Füllstoffe enthaltenden wärmehärtbaren Kunstharzen auf Metallen Es ist allgemein bekannt und gebräuchlich, Gegenstände vor der Zerstörung durch Korrosion dadurch zu schützen, daß man sie an den gefährdeten Stellen mit einem Überzug versieht, der von den korrodierend wirkenden Stoffen nicht angegriffen wird. Solche Überzüge bzw. Schutzschichten werden hergestellt aus Lacken, Emaille, Gummi, Kunststoffen, wie Polyvinylchlorid und Polyisobutylen, Kunstharzen, mit und ohne Füllstoff usw. Der großen Bedeutung, die dem Schutz vor der Korrosion zukommt, entsprechen die Anforderungen, die z. B. an die Widerstandsfähigkeit, Haltbarkeit und Haftfestigkeit der Überzüge gestellt werden müssen. Diese Anforderungen sind besonders hoch in der chemischen Industrie, wo stark korrodierende Stoffe, deren Aggressivität häufig noch durch hohe Temperaturen gesteigert wird, in den Apparaturen entstehen oder umgesetzt und in Rohrleitungen befördert werden, die außerdem noch hohen mechanischen Beanspruchungen, z. B. durch Druck, ausgesetzt sein können.Process for the production of corrosion-preventing coatings from fillers containing thermosetting synthetic resins on metals It is well known and common to protect objects from being destroyed by corrosion, that they are provided with a coating at the endangered places, that of the corrosive active substances is not attacked. Such coatings or protective layers are made of paints, enamel, rubber, plastics such as polyvinyl chloride and polyisobutylene, Synthetic resins, with and without filler, etc. The great importance given to protection the corrosion, meet the requirements that z. B. the resilience, Durability and adhesive strength of the coatings must be provided. These requirements are particularly high in the chemical industry, where highly corrosive substances, whose aggressiveness is often increased by high temperatures, in the Apparatus are created or implemented and conveyed in pipelines that in addition, high mechanical loads, e.g. B. by pressure exposed could be.
So ist es bekannt, eine Faserstoffschicht, z. B. Asbestgewebe, die keine oder nur geringe Mengen an Kondensationsprodukten aus Phenol und Formaldehyd enthält, auf Metall aufzukleben und erst nach erfolgtem Aufkleben mit einem flüssigen Kondensationsprodukt zu tränken. Nach genügender Durchdringung des Gewebes erfolgt dann die Aushärtung der Schicht. Weiterhin hat man ausgehärtete Platten aus Kunstharzen, beispielsweise aus Phenolformaldehydharzen, mit metallischen Unterlagen verbunden, indem man die ausgehärteten Kunstharzplatten auf dem Metall mit Schrauben befestigte, die einzelnen Platten an den aneinanderstoßenden Kanten ausfugte und die dadurch entstehenden Zwischenräume mit einer nicht gehärteten Kunststoffmasse, die anschließend gehärtet wurde, ausfüllte. Schließlich ist es bekannt, eine ausgehärtete Mischung aus einem Kunstharz oder den zur Herstellung des Kunstharzes dienenden Ausgangsstoffen und Wasserglas als korrosionsverhindernde Überzugsmasse zu verwenden. Diese Mischung kann auch ausgehärtet werden, nachdem man sie auf .die zu schützende Unterlage aufgebracht hat.So it is known to use a fibrous layer, e.g. B. Asbestos fabric, the no or only small amounts of condensation products from phenol and formaldehyde contains to stick on metal and only after sticking with a liquid one Soak condensation product. After sufficient penetration of the tissue takes place then the hardening of the layer. Furthermore, one has hardened plates made of synthetic resins, for example from phenol-formaldehyde resins, bonded with metallic substrates, by fixing the hardened resin plates on the metal with screws, grouted the individual panels at the abutting edges and the resulting resulting gaps with a non-hardened plastic compound, which then was hardened, filled out. After all, it is known to be a hardened mixture from a synthetic resin or the raw materials used to manufacture the synthetic resin and water glass to be used as a corrosion-preventing coating compound. This mixture can also be cured after it has been applied to the surface to be protected Has.
Es wurde gefunden, daß man mit einer kittartigen Masse, die aus 20 bis 30°/o Asbest, 30 bis 400/o Graphit, 100/o Bleiglätte und 300/o eines wärmehärtbaren, noch fließfähigen Kunstharz-Kondensationsproduktes besteht, auf Metallen, besonders Eisen, korrosionsverhindernde Überzüge herstellen kann, die auch bei hohen Temperaturen eine ausgezeichnete Widerstandsfähigkeit und Haltbarkeit gegen die Einwirkung aggressiver Stoffe zeigen. Die Überzüge lassen sich mit den metallischen Werkstoffen unlösbar fest verbinden und besitzen eine große Härte, so daß sie nicht nur gegen chemische, sondern auch gegen mechanische Beanspruchungen äußerst widerstandsfähig sind. Sie bewähren sich hervorragend bei sauren Lösungen, auch wenn diese zusammen mit Kohlenwasserstoffen auftreten. Trotz vielfacher Versuche ist es bisher nicht gelungen, gegen derartige aggressive Gemische widerstandsfähige Schutzüberzüge zu finden, die den an sie zu stellenden Anforderungen entsprechen. Die bisher aus Phenolformaldehydharzen mit Füllstoffen hergestellten Auskleidungen lassen sich schlecht verarbeiten und geben mit Metall keine haltbaren Verbindungen. Außerdem machen sich im Dauerbetrieb ungleichmäßige Schrumpfungen bemerkbar, die zu schwerwiegenden Störungen Anlaß geben können.It has been found that a putty-like mass consisting of 20 up to 30% asbestos, 30 to 400 / o graphite, 100 / o black lead and 300 / o of a thermosetting, still flowable synthetic resin condensation product exists, especially on metals Iron can produce anti-corrosive coatings, even at high temperatures excellent resistance and durability to the action of aggressive Show fabrics. The coatings cannot be removed with the metallic materials firmly connect and are very hard, so that they are not only resistant to chemical, but are also extremely resistant to mechanical stress. she prove their worth with acidic solutions, even if these are combined with hydrocarbons appear. Despite multiple attempts, it has not yet been possible to counteract such aggressive mixtures to find resistant protective coatings that are attached to them meet the requirements. The previously made of phenol-formaldehyde resins with Linings made with fillers are difficult to process and give no durable connections with metal. In addition, they become uneven in continuous operation Noticeable shrinkages, which can give rise to serious disturbances.
Beispiel 10 bis 20 Gewichtsteile eines groben Graphits werden mit 20 bis 30 Gewichtsteilen langfaseriger Blauasbestwolle etwa 4 Stunden im Kneter gemischt. Sodann gibt man 15 bis 20 Gewichsteile Edelgraphit und 10 Gewichtsteile Bleiglätte hinzu und knetet die Masse eine weitere halbe Stunde, worauf 25 Gewichtsteile eines in üblicher Weise hergestellten härtbaren Sirupösen Phenolformaldehyd-Kondensationsproduktes, das eine schwach alkalische Reaktion zeigt, und 5 Gewichtsteile eines mittelflüssigen härtbaren Phenolformaldehyd-Kondensationsproduktes zugegeben werden und die Mischung nochmals eine halbe Stunde im Kneter verarbeitet wird. Man erhält sodann eine kittartige Masse, die man zur Herstellung der Überzüge zu Platten auswalzt. Die Platten werden mit den zu schützenden Metallflächen unter Verwendung eines Klebers, der zweckmäßig aus einem härtbaren Kunstharz besteht, fest verbunden und nach einer mehrstündigen Trockenzeit durch Wärme ausgehärtet. Es empfiehlt sich, bei der Aushärtung die Temperatur langsam innerhalb einiger Stunden auf etwa 160° C zu steigern und zur Erhöhung der Haftfähigkeit zwischen Schutzschicht und Metall einen Überdruck von etwa 5 bis 6 atü anzuwenden.Example 10 to 20 parts by weight of a coarse graphite are with 20 to 30 parts by weight of long-fiber blue asbestos wool for about 4 hours in the kneader mixed. Then 15 to 20 parts by weight of noble graphite and 10 parts by weight are added Add litharge and knead the mass for another half hour, whereupon 25 parts by weight a curable syrupy phenol-formaldehyde condensation product prepared in a conventional manner, which shows a weak alkaline reaction, and 5 parts by weight of a medium liquid curable phenol-formaldehyde condensation product are added and the mixture is processed again for half an hour in the kneader. A putty-like one is then obtained Mass that is rolled out to form sheets to produce the coatings. the Plates are attached to the metal surfaces to be protected using an adhesive, which expediently consists of a curable synthetic resin, firmly connected and after a several hours of drying time cured by heat. It is best when curing to increase the temperature slowly within a few hours to about 160 ° C and an overprint to increase the adhesion between the protective layer and the metal to be used from about 5 to 6 atmospheres.
Claims (5)
Publications (1)
Publication Number | Publication Date |
---|---|
DE1069040B true DE1069040B (en) | 1959-11-12 |
Family
ID=594254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1069040D Pending DE1069040B (en) | Process for the production of corrosion-bonding coatings from thermosetting synthetic resins containing fillers on metals |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1069040B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1919059B1 (en) * | 1969-04-15 | 1971-09-23 | Mccreary Tire & Rubber Co | ABRASION AND CORROSION-RESISTANT PROTECTIVE COVER |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT95483B (en) * | 1920-11-09 | 1923-12-27 | Johann Karl Wirth | Process for the production of resistant coatings on metal or other surfaces by means of condensation products of phenol and formaldehyde and fibers. |
GB274355A (en) * | 1927-01-11 | 1927-07-21 | Karl Loos | Improved process for coating metal and like articles |
GB265566A (en) * | 1926-02-02 | 1927-09-15 | Saureschutz Ges Mit Beschraenk | Improvements relating to the construction of vessels or other articles from parts ofartificial resin |
-
0
- DE DENDAT1069040D patent/DE1069040B/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT95483B (en) * | 1920-11-09 | 1923-12-27 | Johann Karl Wirth | Process for the production of resistant coatings on metal or other surfaces by means of condensation products of phenol and formaldehyde and fibers. |
GB265566A (en) * | 1926-02-02 | 1927-09-15 | Saureschutz Ges Mit Beschraenk | Improvements relating to the construction of vessels or other articles from parts ofartificial resin |
GB274355A (en) * | 1927-01-11 | 1927-07-21 | Karl Loos | Improved process for coating metal and like articles |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1919059B1 (en) * | 1969-04-15 | 1971-09-23 | Mccreary Tire & Rubber Co | ABRASION AND CORROSION-RESISTANT PROTECTIVE COVER |
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