LT5645B - Plastics etching composition - Google Patents
Plastics etching composition Download PDFInfo
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- LT5645B LT5645B LT2008055A LT2008055A LT5645B LT 5645 B LT5645 B LT 5645B LT 2008055 A LT2008055 A LT 2008055A LT 2008055 A LT2008055 A LT 2008055A LT 5645 B LT5645 B LT 5645B
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Abstract
Description
Išradimas priskiriamas prie kompozicijų, skirtų nelaidininkų paviršių paruošimui prieš cheminę metalizaciją.The invention relates to compositions for preparing non-conductive surfaces prior to chemical metallization.
Metalizuojant plastikus, ypatingai akrilonitrilbutadienstirolo kopolimerus (ABS) ir ABS-polikarbonato mišinius (ABS-PC), pirmas svarbus etapas yra plastikų ėsdinimas, įgalinantis gauti sukibimą tarp plastiko ir tolimesnėje eigoje gaminamos metalo dangos.The first important step in the metallization of plastics, especially acrylonitrile-butadiene-styrene copolymers (ABS) and ABS-polycarbonate blends (ABS-PC), is the etching of plastics, which allows adhesion between the plastic and the metal coating to be produced.
Šiam etapui paprastai naudojamos kompozicijos, į kurių sudėtį įeina ėsdiklisFormulations containing a corrosive are commonly used for this step
- šešiavalenčio chromo junginiai. Jau seniai bandoma sukurti ėsdinimo kompozicijas, kuriose šešiavalentis chromas būtų pakeistas kitu, nes šie junginiai pasižymi kancerogeninėmis savybėmis.- hexavalent chromium compounds. There have long been attempts to develop etching compositions in which hexavalent chromium is replaced by other compounds because of their carcinogenic properties.
Yra žinomas plastiko ABS ir turinčių ABS plastikų mišinių ėsdinimas permanganatiniais šarminiais (žiūr. US5112513, US4073740, US3652451) bei rūgštiniais (žiūr. US5160690) tirpalais. Šarminiai permanganatiniai tirpalai stabilūs laike, tačiau mažai efektyvūs, ypač ėsdinant ABS arba ABS turinčius plastikus.Corrosion of mixtures of ABS plastic and ABS containing plastics with permanganese alkaline (see US5112513, US4073740, US3652451) and acidic (see US5160690) solutions is known. Alkaline permanganese solutions are stable over time but have little effect, especially on corrosive ABS or ABS containing plastics.
Artimiausia siūlomam išradimui yra “Plastiko gaminių ėsdinimo kompozicija”, į kurios sudėtį įeina neorganinė rūgštis (20-1200 g/l), mangano druska (0,01The closest to the present invention is the "Corrosive Composition of Plastic Products" containing an inorganic acid (20-1200 g / l), manganese salt (0.01).
- 10 g/l) bei permanganato jonų stabilizatoriai (1 - 200 g/l), likusi dalis vanduo (WO 2007/122869, 2007.11.01). Rūgštiniai permanganatiniai tirpalai yra efektyvesni už šarminius, tačiau juose permanganato jonai linkę skilti iki žemesnio valentingumo mangano junginių, kurie jau nėra ėsdikliai. Be to, minėtame patente permanganato jonus rūgštiniame ėsdinimo tirpale stabilizuoja pridedant oksihalogenidų, bismutatų arba persulfatų. Yra žinoma, kad persulfatai yra patys nestabilūs rūgštinėje terpėje, o oksihalogenidai ir bismutatai, lyginant su siūlomu išradimu, yra brangiai kainuojančios medžiagos, kas ženkliai didina ėsdinimo tirpalo savikainą.- 10 g / l) and permanganate ion stabilizers (1 - 200 g / l), the rest water (WO 2007/122869, 01.11.2007). Acidic permanganate solutions are more effective than alkaline, but they tend to decompose permanganate ions to lower valence manganese compounds that are no longer corrosive. In addition, in said patent, permanganate ions are stabilized in acid etching solution by the addition of oxyhalides, bismuthates or persulfates. Persulfates are known to be unstable in acidic media themselves, and oxyhalides and bismuthates are expensive materials compared to the present invention, which significantly increases the cost of the etching solution.
Siūlomo išradimo tikslas - plastiko paviršiaus paruošimo kokybės pagerinimas naudojant ėsdinimo kompoziciją.The object of the present invention is to improve the quality of surface preparation of plastics by using an etching composition.
Nurodytas tikslas pasiekiamas tuo, kad plastiko ėsdinimui naudoja kompoziciją, kurios sudėtis masės % yra: sieros rūgštis 70-90, mangano druskos 0.0001-0.01, vanduo - likęs kiekis, o sieros rūgšties koncentracija, naudojama kompozicijoje, yra ne mažesnė nei 75%.The stated object is achieved by using a composition containing by weight of sulfuric acid 70-90, manganese salts 0.0001-0.01, water as the remainder, and the concentration of sulfuric acid used in the composition of at least 75%.
Siūlomas išradimas, lyginant su artimiausiu prototipu, įgalina visiškai nenaudoti permanganato jonus stabilizuojančių medžiagų. Tai pasiekiama tuo, kad ėsdinimo tirpalui panaudojama neorganinė rūgštis yra H2SO4, kurios koncentracija tirpale yra ne mažesnė kaip 75 masės %. Tokios aukštos H2SO4 koncentracijos atveju permanganato jonai tampa stabilūs laike ir jiems nereikia papildomų stabilizuojančių medžiagų. Be to, esant aukštai sieros rūgšties koncentracijai, ji pati tampa papildomu oksidatoriumi ir ėsdina bei modifikuoja (sulfatuoja) plastiką kartu su permanganato jonais.The present invention enables the use of permanganate ion-stabilizing agents to be completely avoided compared to the closest prototype. This is achieved because the inorganic acid used for the etching solution is H 2 SO 4 in a concentration of at least 75% by weight. At such high concentrations of H 2 SO 4 , permanganate ions become stable over time and do not require additional stabilizing agents. In addition, at high sulfuric acid levels, it itself becomes an additional oxidant and corrodes and modifies (sulphates) plastic together with permanganate ions.
Taip pat, siūlomas išradimas įgalina naudoti kompoziciją, kurioje kancerogeniškas šešiavalentis chromas pakeičiamas kitu oksidatoriumi ėsdikliu.Also, the present invention makes it possible to use a composition in which the carcinogenic hexavalent chromium is replaced by another oxidizing agent.
Siūlomas išradimas paaiškinamas pavyzdžiais.The present invention is illustrated by the following examples.
ABS plastiko ir ABS plastiko bei polikarbonato mišinio (PC/ABS) plokštelių pavyzdžius 2x4x0,2 cm ėsdina įvairios sudėties tirpaluose skirtingą laiką ir esant skirtingai tirpalo temperatūrai.Samples of ABS plastic and ABS plastic and polycarbonate blend (PC / ABS) plates are corroded at 2x4x0.2 cm in different formulations for different times and temperatures.
Po to pavyzdžius nuplauna vandeniu ir aktyvuoja 2 min. kambario temperatūros tirpale, turinčiame iki 1 g/l PdCI2 ir 2 ml/l HCI, bei sensibilizuoja 2 min. kambario temperatūros reduktoriaus tirpale, turinčiame g/1 natrio borhidrito ir 5 g/l NaOH. Po to pavyzdžius vėl plauna ir padengia metaliniu nikeliu kambario temperatūros cheminio nikeliavimo tirpale, turinčiame (g/l): NiCL2-10, NaH2PO2-30, natrio citrato-30, NaOH-ikipH apie 10. Dengimo laikas 5 min.The samples are then rinsed with water and activated for 2 min. at room temperature in a solution containing up to 1 g / l PdCl 2 and 2 ml / l HCl and sensitized for 2 min. at room temperature in a reducing agent solution containing g / l sodium borohydrite and 5 g / l NaOH. The samples are washed again and cover the metallic nickel room temperature chemical plating solution containing (g / l): NiCL2-10 NaH 2 PO 2 -30, sodium citrate-30 NaOH-ikipH about 10. Drying Time 5 min.
Toliau elektrocheminiu žinomu būdu pavyzdžius variuoja, iki pasiekia dangos storį 0,1 mm elektrolite, turinčiame 100 g/l CuSO4 5H2O ir 80 ml/l, koncentruotos H2SO4 (97%), esant katodiniam srovės tankiui 2A/dm2.The samples are further varied in an electrochemically known manner to a coating thickness of 0.1 mm in an electrolyte containing 100 g / l CuSO 4 5 H 2 O and 80 ml / l concentrated H 2 SO 4 (97%) at a cathodic current density of 2A / dm. 2 .
Metalo dangos sukibimo su plastiku Įvertinimui, 1 cm pločio metalo dangos juostelė buvo plėšiama nuo plastiko stačiu kampu, 20 cm/min greičiu. Rezultatai pateikti 1 lentelėje.Metal coating adhesion to plastic For evaluation, a 1 cm wide metal coating strip was stripped from the plastic at a right angle at a speed of 20 cm / min. The results are shown in Table 1.
lentelė.table.
Iš lentelės matyti, kad siūloma kompozicija leidžia gauti geresnį sukibimą su plastiku, esant H2SO4 koncentracijai tirpale ne mažiau kaip 75 masės %It can be seen from the table that the proposed composition provides better adhesion to the plastic at a concentration of at least 75% by weight of H 2 SO 4 in solution.
Claims (2)
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LT2008055A LT5645B (en) | 2008-07-18 | 2008-07-18 | Plastics etching composition |
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LT2008055A LT5645B (en) | 2008-07-18 | 2008-07-18 | Plastics etching composition |
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LT2008055A LT2008055A (en) | 2010-01-25 |
LT5645B true LT5645B (en) | 2010-03-25 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014124773A2 (en) | 2013-02-13 | 2014-08-21 | Atotech Deutschland Gmbh | Method for depositing a first metallic layer onto non-conductive polymers |
CN104109537A (en) * | 2013-04-16 | 2014-10-22 | 罗门哈斯电子材料有限公司 | Chrome-free methods of etching organic polymers with mixed acid solutions |
CN106903306A (en) * | 2017-04-12 | 2017-06-30 | 合肥学院 | A kind of method that defect induced chemical depositing process prepares 3D printing metallic particles/polymer compound powder body |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652451A (en) | 1968-12-20 | 1972-03-28 | Universal Oil Prod Co | Fluid distribution for fluid-solids contacting chambers |
US4073740A (en) | 1975-06-18 | 1978-02-14 | Kollmorgen Technologies Corporation | Composition for the activation of resinous bodies for adherent metallization |
US5112513A (en) | 1988-05-10 | 1992-05-12 | Schering Ag | Solution and process for etching and activating surfaces of a nonconductive substrate |
US5160690A (en) | 1991-11-15 | 1992-11-03 | Xaloy Incorporated | Process for using a high pressure injection molding cylinder |
WO2007122869A1 (en) | 2006-04-18 | 2007-11-01 | Okuno Chemical Industries Co., Ltd. | Composition for etching treatment of resin molded article |
-
2008
- 2008-07-18 LT LT2008055A patent/LT5645B/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652451A (en) | 1968-12-20 | 1972-03-28 | Universal Oil Prod Co | Fluid distribution for fluid-solids contacting chambers |
US4073740A (en) | 1975-06-18 | 1978-02-14 | Kollmorgen Technologies Corporation | Composition for the activation of resinous bodies for adherent metallization |
US5112513A (en) | 1988-05-10 | 1992-05-12 | Schering Ag | Solution and process for etching and activating surfaces of a nonconductive substrate |
US5160690A (en) | 1991-11-15 | 1992-11-03 | Xaloy Incorporated | Process for using a high pressure injection molding cylinder |
WO2007122869A1 (en) | 2006-04-18 | 2007-11-01 | Okuno Chemical Industries Co., Ltd. | Composition for etching treatment of resin molded article |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014124773A2 (en) | 2013-02-13 | 2014-08-21 | Atotech Deutschland Gmbh | Method for depositing a first metallic layer onto non-conductive polymers |
CN104109537A (en) * | 2013-04-16 | 2014-10-22 | 罗门哈斯电子材料有限公司 | Chrome-free methods of etching organic polymers with mixed acid solutions |
CN104109537B (en) * | 2013-04-16 | 2017-01-11 | 罗门哈斯电子材料有限公司 | Chrome-free methods of etching organic polymers with mixed acid solutions |
CN106903306A (en) * | 2017-04-12 | 2017-06-30 | 合肥学院 | A kind of method that defect induced chemical depositing process prepares 3D printing metallic particles/polymer compound powder body |
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LT2008055A (en) | 2010-01-25 |
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