PL42222B1 - - Google Patents
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- Publication number
- PL42222B1 PL42222B1 PL42222A PL4222257A PL42222B1 PL 42222 B1 PL42222 B1 PL 42222B1 PL 42222 A PL42222 A PL 42222A PL 4222257 A PL4222257 A PL 4222257A PL 42222 B1 PL42222 B1 PL 42222B1
- Authority
- PL
- Poland
- Prior art keywords
- binder
- zinc dust
- paints
- residing
- oils
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 239000003973 paint Substances 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 238000004210 cathodic protection Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000000087 stabilizing Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 9
- 230000002378 acidificating Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000015450 Tilia cordata Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SGXFBBAFIMCMPE-UHFFFAOYSA-N 7-hydroxy-3-(trifluoromethyl)pyrrolo[2,3-b]pyridine Chemical compound ON1C=CC=C2C(C(F)(F)F)=CN=C12 SGXFBBAFIMCMPE-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Description
Opublikowano dnia 20 pazdziernika 1959 r. to POLSKIEJ RZECZYPOSPOLITEJ LUDOWEJ OPIS PATENTOWY ^ssBSrUafcds^^tadMMmfcaplfcaffc Nr 42222 Eugeniusz Janiszewski Warszawa, Polska KI. 22 $ Sposób stabilizacji farb na bazie pylu cynkowego do katodowej ochrony zelaza Patent trwa od dnia 21 grudnia 1957 r.Wada przeciwkorozyjnych farb na bazie pylu cynkowego jest dzialanie cynku na kwaShe skladniki substancji wiazacych. Farby olejowe, które dotychczas glównie stosuje sie do malo¬ wania kadlubów zelaznych statków, silnie pie¬ nia sie podczas magazynowania, co powoduje gabczastosc farby, rozsadzanie szczelnego opa¬ kowania i niebezpieczenstwo wybuchu na sku¬ tek obecnosci wodoru. Przy malowaniu taka far¬ ba wydzielajacy sie gaz powoduje porowatosc blony ochronnej. Wobec tego zagranica opraco¬ wano szereg recept, gdzie substancja wiazaca olejowa zostala zastapiona przez roztwory two¬ rzyw sztucznych, przewaznie polistyrolu i chloro- kauczuku wobec plastyfikatorów. Oprócz wyso¬ kiej ceny tych pokryc posiadaja one te wade, ze wiekszosc odmian chlorokauczuku równiez roz¬ klada sie pod wplywem pylu cynkowego. Nie- trwalosci tych farb podczas magazynowania za¬ pobiegano w ten sposób, ze oddzielnie przecho¬ wywano pigmenty metaliczne zawierajace cynk i oddzielnie spoiwo, z których przygotowywano odpowiednia farbe przez zmieszanie i roztarcie dopiero na miejscu jej uzycia.Znane jest zobojetnianie kwasnych skladni¬ ków tluszczowych wapnem lub wodorotlenkiem sodowym lub potasowym, które usuwa te niedo¬ godnosci, zmniejsza jednak sile krycia i trwalosc tych farb przez tworzenie sie mydel wapiennych ewentualnie sodowych.Stwierdzono, ze mozna uzyskac farbe na ba¬ zie pylu cynkowego i olejów nadajaca sie do¬ skonale do katodowej ochrony zelaza, jezeli do zobojetniania kwasnych substancji spoiwa sto¬ suje sie olowian wapnia, który jak wiadomo z literatury technicznej, proponowano jako na¬ miastke minii, w celu zaoszczedzenia olowiu przy gruntowaniu zelaza.Olowian wapnia stosuje sie w minimalnych ilosciach obliczonych stechiometrycznie wedlug liczby kwasowej olejów. Praktycznie do zobojet¬ niania kwasnych olejów stosuje sie od 0\2%< olo¬ wianu wapnia przy niskiej liczbie kwasowej ole-jów do 1,5% przy bardzo kwasnych olejach po¬ limeryzowanych. \ Farbe na pyle cynkowym przygotowuje sie przez uprzednia neutralizacje olejów wiazacych obliczona iloscia olowianu wapnia o pH (w roz¬ tworze wodnym) od 9 do 12, pozostawienie tych olejów w celu „dojrzewania" sprawdzenie ana¬ lityczne ich kwasowosci i nastepne roztarcie zobojetnionego spoiwa ze standaryzowanym py¬ lem cynkowym.Proces ten moze byc zastosowany równiez do roztworów tworzyw sztucznych uzywanych jako substancja wiazaca do pylu cynkowego, szczegól¬ nie w tych przypadkach gdy reaguja one che¬ micznie z cynkiem, jak to ma miejsce na przy¬ klad z niektórymi chlorokauczukami. W tym ostatnim przypadku sposób stabilizowania we¬ dlug wynalazku zastepuje calkowicie stosowany dodatek epichlorohydryny. 4 Liczne i dlugotrwale doswiadczenia wykazaly nieograniczona trwalosc farb stabilizowanych sposobem wedlug wynalazku. Zabezpieczaja one zelazo przed korozja, nawet w wodzie morskiej, w ciagu okresu czasu wielokrotnie wiekszym niz w przypadku stosowanych dotychczas zwyklych farb rdzochronnych. PLPublished on October 20, 1959 to the POLISH PEOPLE'S REPUBLIC PATENT DESCRIPTION ^ ssBSrUafcds ^^ tadMMmfcaplfcaffc No. 42222 Eugeniusz Janiszewski Warsaw, Poland KI. $ 22 The method of stabilizing zinc dust paints for cathodic protection of iron The patent has been in force since December 21, 1957. The disadvantage of zinc dust anticorrosive paints is the effect of zinc on acid components of the binders. Oil paints, which until now are mainly used for painting the hulls of iron ships, foaming heavily during storage, which causes the paint to become spongy, bursting in sealed packaging and the risk of explosion due to the presence of hydrogen. When painting, such a gas gives off the porosity of the protective film. Accordingly, a number of recipes have been developed abroad where the oil binder has been replaced by solutions of plastics, mainly polystyrene and rubber chloride, for plasticizers. In addition to the high cost of these coatings, they also have the disadvantage that most varieties of chlorinated rubber are also decomposed by zinc dust. The storage stability of these paints was prevented in such a way that metallic pigments containing zinc and a binder were stored separately, from which the appropriate paint was prepared by mixing and grinding only at the point of use. It is known to neutralize the acidic fatty components. with lime or sodium or potassium hydroxide, which removes these deficiencies, however, reduces the hiding power and durability of these paints by the formation of lime or sodium soaps. It has been found that it is possible to obtain a paint based on zinc dust and oils that is perfectly suitable for for the cathodic protection of iron, if calcium leadate is used to neutralize the acidic substances of the binder, which, as is known from the technical literature, has been proposed as a substitute for red iron, in order to save lead in iron priming. Calcium leadate is used in minimal amounts calculated stoichiometrically according to the number of acidic oils. In practice, for the neutralization of acid oils, from 0% 2% calcium olate for low acid number oils up to 1.5% for very acid polymerized oils. The zinc dust paint is prepared by neutralizing the binding oils with the calculated amount of calcium leadate with a pH (in water solution) from 9 to 12, leaving these oils to "mature" analytically checking their acidity and then grinding the neutralized binder with standardized zinc dust. This process can also be applied to plastic solutions used as binders for zinc dust, especially when they react chemically with zinc, such as with some chlorinated rubbers. In the latter case, the stabilization method according to the invention replaces the addition of epichlorohydrin completely used. 4 Numerous and long-lasting experiments have shown the unlimited durability of the paints stabilized according to the invention. They protect iron against corrosion, even in sea water, over a period of time many times greater than in in the case of the usual rustproof paints used so far wives. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL42222B1 true PL42222B1 (en) | 1959-06-15 |
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