TWI679306B - 鎂基材的前處理 - Google Patents
鎂基材的前處理 Download PDFInfo
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- TWI679306B TWI679306B TW104105909A TW104105909A TWI679306B TW I679306 B TWI679306 B TW I679306B TW 104105909 A TW104105909 A TW 104105909A TW 104105909 A TW104105909 A TW 104105909A TW I679306 B TWI679306 B TW I679306B
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- 239000000758 substrate Substances 0.000 title claims abstract description 20
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 19
- 239000011777 magnesium Substances 0.000 title claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- -1 alkaline earth metal salt Chemical class 0.000 claims abstract description 7
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims abstract description 7
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 14
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 12
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 9
- 229940068041 phytic acid Drugs 0.000 claims description 9
- 239000000467 phytic acid Substances 0.000 claims description 9
- 235000002949 phytic acid Nutrition 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 229910017855 NH 4 F Inorganic materials 0.000 claims 2
- 239000011253 protective coating Substances 0.000 claims 2
- 230000001681 protective effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 18
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000011282 treatment Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 229920001451 polypropylene glycol Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 3
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 3
- 229960005069 calcium Drugs 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- DXIGZHYPWYIZLM-UHFFFAOYSA-J tetrafluorozirconium;dihydrofluoride Chemical compound F.F.F[Zr](F)(F)F DXIGZHYPWYIZLM-UHFFFAOYSA-J 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- LLSDKQJKOVVTOJ-UHFFFAOYSA-L calcium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ca+2] LLSDKQJKOVVTOJ-UHFFFAOYSA-L 0.000 description 2
- 229940052299 calcium chloride dihydrate Drugs 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 150000001845 chromium compounds Chemical class 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011284 combination treatment Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 229960002713 calcium chloride Drugs 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000003178 glass ionomer cement Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/57—Treatment of magnesium or alloys based thereon
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Treatment Of Metals (AREA)
- Insulated Metal Substrates For Printed Circuits (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
本發明揭示一種用於在施加保護及/或裝飾表面塗層前對鎂基材進行前處理之方法及組合物。該前處理組合物包括(a)含有至少4個磷酸基團之化合物及(b)可溶性鹼土金屬鹽。
Description
本發明係關於在施加保護及/或裝飾塗層之前用於鎂基材之前處理的組合物。
鎂係一種具有吸引力之結構金屬。其具有高於鋁及鋼之強度重量比，使得其可用於建構諸如汽車及消費性電子產品之各種裝置。然而，當鎂未經護時其會氧化，且對隨後施加之塗層展現相對較差的黏附。為解決此等問題，通常在塗覆之前使用諸如鉻酸之鉻化合物對鎂進行前處理以抑制氧化作用，從而提升黏附力。雖然有效，但鉻化合物因其等毒性及隨之而來的處置問題而不符期望。因此，在鎂基材的前處理中需要鉻的替代物。
本發明提供一種在向鎂基材之表面施加塗層前用於處理鎂基材之組合物。該組合物包括具有至少4個磷酸基團之化合物及可溶性鹼土金屬鹽。
本發明亦提供一種藉由使鎂基材與上述組合物接觸而處理鎂基材之方法。
除非另有明確規定，否則本文使用之所有數字，諸如彼等表示值、範圍、量或百分率之數字，可如同前置詞語「約」來理解，即使該術語未明確出現。本文列舉之任何數值範圍旨在包含所有歸入其中的子範圍。複數包含單數且反之亦然。
該具有至少4個磷酸基團之化合物可係諸如具有6個磷酸基團之植酸之天然存在的材料，或可係諸如藉由使諸如新戊四醇、二新戊四醇或山梨糖醇之含有至少4個羥基的多元醇與化學計量含量之磷酸(1莫耳多元醇/4莫耳磷酸)反應所獲得的合成材料。除會形成磷酸酯之磷酸外，亦可使用有機膦酸。
該鹼土金屬鹽可係鈣或鍶之鹽諸如硝酸鈣、硝酸鍶及氯化鈣，其可溶於處理組合物中。
處理組合物中可存在氟化物源且其可源自提供游離氟化物來源的氫氟酸、氟化銨、氟化鈉、氫氟化銨及氫氟化鈉，或可來自諸如四氟硼酸或六氟鋯酸之錯合金屬氟化物鹽。
通常在低剪切混合下向水中添加上述成分以形成水性前處理組合物之溶液。該含有至少4個磷酸基團之組合物經常係以0.01%至20%之量存在，通常係0.1至2重量%，及該鹼土金屬鹽係以0.01%至5%之量存在，通常係0.1至1重量%。重量%係基於水性前處理組合物之總重量。該氟化物係以0至500百萬分數(ppm)之量，通常係自10至40ppm之量存在。
組合物中可存在視情況選用之成分諸如界面活性劑及消泡劑，及當存在時，其等係以基於水性前處理組合物之重量計高達0.01至5重量%的量存在。
處理組合物之pH可在1與10之間變化，通常係1至5，及可使用氫氧化鈉或氫氧化鉀調整。
除鎂外，本發明可前處理諸如鎂鋅及鎂鋁合金之鎂合金。此
外，可使含有超過一種金屬之基材，例如，亦含有鋁表面及鋼表面(諸如與汽車相關之金屬表面)之基材，與本發明之水性前處理組合物接觸。雖然此等金屬表面可能需要用其他組合物前處理以提供表面保護及對隨後施加塗層之黏附，但本發明之組合物不會對此等金屬之性質造成不利影響。
該等水性前處理組合物可藉由習知方式(諸如噴塗、刷塗、輥塗或浸漬技術)與鎂基材接觸。組合物之溫度經常係自20至49℃，通常係20至37℃，接觸時間自5秒至20分鐘，通常係1至5分鐘。
在接觸之前，通常藉由物理或化學方法淨化鎂基材，接著用水沖洗。接觸後，自處理區域將經前處理之基材分開並用水沖洗，及通常在27至49℃下乾燥1至5分鐘。
然後接著用諸如下列之保護及/或裝飾表面塗層塗佈該經前處理之基材：粉末塗層、陰離子或陽離子電鍍塗料、及藉由非電泳技術施加之諸如基於有機溶劑之塗料或基於水之塗料的液體塗料，其等中之任一者可係高固含物。
實例
藉由以下非限制性實例進一步說明本發明。除非另有指示，否則所有份數係以重量計。
實例1(比較例)
自Metalmart International(Commerce,CA)獲得AZ31B-H24鎂合金板供試驗用。淨化該等板並在120℉(49℃)下在鹼性清潔液中脫脂兩分鐘及用去離子水沖洗三十秒。該鹼性清潔液包含在去離子水中之1.25重量%之Chemkleen 2010LP(PPG Industries,Inc.,Cleveland,OH)及0.13重量%之Chemkleen l81ALP(PPG Industries,Inc.)。
藉由在10.8公升去離子水中添加122g植酸溶液(40-50% w/w在水中，Acros-Organics)來製備用於處理該等經淨化及脫脂之板的組合
物。使用氫氧化鉀(45% w/w在水中)將浴液之pH調整至2。浴液中之標稱植酸含量係0.5重量%。
在環境溫度下將該等板在組合物中浸漬2分鐘，用去離子水沖洗30秒，並用熱空氣(130℉[54℃])乾燥。
實例2(比較例)
此實例遵循實例1中描述之處理程序。
藉由在10.8公升去離子水中添加122g植酸溶液及9.5g氫氟化銨粉末(Fischer Chemicals)來製備處理組合物。使用氫氧化鉀將浴液之pH調整至2.5。植酸及游離氟化物之標稱含量分別係0.5%及100ppm。
實例3(比較例)
此實例遵循實例1中描述之處理程序。
藉由在10.8公升去離子水中添加122g植酸溶液及19.1g氫氟化銨粉末來製備處理組合物。使用氫氧化鉀將浴液之pH調整至2.5。植酸及游離氟化物之標稱含量分別係0.5%及200ppm。
實例4
此實例遵循實例1中描述之處理程序。
藉由在10.8公升去離子水中添加122g植酸溶液及100g氯化鈣二水合物粉末(Fischer Chemicals)來製備處理組合物。使用氫氧化鉀將浴液之pH調整至2。植酸及鈣之標稱含量分別係0.5%及0.25%。
實例5
此實例遵循實例1中描述之處理程序。
藉由在10.8公升去離子水中添加122g植酸溶液、40g氯化鈣二水合物粉末、及22g四氟硼酸溶液(50% w/w在水中，Riedel-de Haen)來製備處理組合物。使用氫氧化鉀將浴液之pH調整至3。植酸之標稱含量係0.5%；鈣之標稱含量係0.1%；四氟硼酸之標稱含量係0.1%及游離氟化物的標稱含量係20ppm。
實例6(比較例)
此實例遵循實例1中描述之處理程序。
藉由在18.2公升水中添加18.2g六氟鋯酸(45% w/w在水中)、20g硝酸銅(2% w/w在水中)及15g Chemfos AFL(PPG Industries,Inc.)來製備處理組合物。使用Chemfil緩衝劑(鹼性緩衝溶液，PPG Industries,Inc.)將pH調整至4.7。鋯含量係約200ppm；銅含量係約20ppm；及游離氟化物含量係約50ppm。
實例7(比較例)
此實例遵循實例1中描述之處理程序。
藉由在18.2公升水中添加18.2g六氟鋯酸(45% w/w在水中)、20g硝酸銅(2% w/w在水中)及15g Chemfos AFL(PPG Industries,Inc.)來製備處理組合物。該浴液係在組成pH 2下使用。鋯含量係約200ppm；銅含量係約20ppm；及游離氟化物含量係約50ppm。
在試驗之前，經由電鍍使用來自PPG Industries之陰極環氧樹脂塗料Powercron 6000CX塗刷所有板。使用約200V之電壓沉積該塗料，及其後使其等在350℉(177℃)下固化25分鐘。
下表I包含使用不同浴液調配物來塗覆本發明之研究基材的結果。鹽水噴霧試驗NSS及循環腐蝕GMW14872結果表明藉由使用先前描述之新穎浴液調配物，耐腐蝕性相比單獨之植酸及之標準鋯塗層大幅提升。
1依照ASTM B117之鹽水噴霧腐蝕試驗。
2藉由根據通用汽車試驗方法(General Motors Test Method)GMW14872使試驗板旋轉通過鹽溶液、室溫乾燥、濕度及低溫之循環腐蝕試驗。
3由於嚴重腐蝕，將板自鹽水噴霧試驗移除，從而影響板之完整性。
雖然上文已描述本發明之特定實施例供說明用，但熟習此項技術者當明瞭可在不脫離如隨附申請專利範圍中定義之本發明的情況下對本發明之細節作出許多變更。
雖然已用術語「包括」描述本發明之各種實施例，但基本上由...組成或由...組成之實施例亦係在本發明範圍內。
Claims (11)
- 一種消費性電子裝置，其具有在施加表面塗層之前已經前處理組合物處理之鎂基材，該前處理組合物包括：(a)含有至少四個磷酸基團之化合物，及(b)可溶性鹼土金屬鹽，其係氯化鈣。
- 如請求項1之消費性電子裝置，其中該表面塗層係藉由電鍍施加。
- 如請求項1之消費性電子裝置，其中(a)係植酸或其鹽。
- 如請求項1之消費性電子裝置，其中該前處理組合物進一步包括氟化物源。
- 如請求項4之消費性電子裝置，其中該氟化物源係選自由HF、NH4F及NH4HF2組成之群。
- 一種用於處理消費性電子裝置之鎂基材之方法，其包括使該鎂基材與組合物接觸，該組合物包括：(a)含有至少四個磷酸基團之化合物，及(b)可溶性鹼土金屬鹽，其係氯化鈣。
- 如請求項6之方法，其中(a)係植酸或其鹽。
- 如請求項6或7之方法，其中該組合物進一步包括氟化物源。
- 如請求項8之方法，其中該氟化物源係選自由HF、NH4F及NH4HF2組成之群。
- 如請求項6之方法，其中該鎂基材經處理後，該鎂基材係以保護塗層塗佈。
- 如請求項10之方法，其中該保護塗層包括基於有機溶劑之塗層、粉末塗層或電鍍塗層。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/184,998 US20150232671A1 (en) | 2014-02-20 | 2014-02-20 | Pretreatment of magnesium substrates |
| US14/184,998 | 2014-02-20 |
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| TW201538792A TW201538792A (zh) | 2015-10-16 |
| TWI679306B true TWI679306B (zh) | 2019-12-11 |
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| US (2) | US20150232671A1 (zh) |
| EP (1) | EP3108036A1 (zh) |
| CN (1) | CN106103800A (zh) |
| AU (1) | AU2015218940B2 (zh) |
| RU (1) | RU2662179C2 (zh) |
| TW (1) | TWI679306B (zh) |
| WO (1) | WO2015127080A1 (zh) |
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| CN106868486B (zh) * | 2015-12-14 | 2019-07-23 | 宝山钢铁股份有限公司 | 一种镁合金用复合物化学转化膜的成膜处理剂及成膜工艺 |
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|---|---|---|---|---|
| GB2037328A (en) * | 1978-12-07 | 1980-07-09 | Nihon Parkerizing | Surface processing solution and surface treatment for aluminum or aluminum alloy substrate |
| US6281774B1 (en) * | 1999-09-10 | 2001-08-28 | Sumitomo Special Metals Co., Ltd. | Corrosion-resistant permanent magnet and method for producing the same |
| JP2003253459A (ja) * | 2002-02-26 | 2003-09-10 | Iwate Prefecture | 表面処理剤、表面処理方法、及び表面処理された製品 |
| US20110008645A1 (en) * | 2008-03-11 | 2011-01-13 | Mark Andre Schneider | Process for coating metallic surfaces with a passivating agent, the passivating agent and its use |
| CN102660736A (zh) * | 2012-05-16 | 2012-09-12 | 广州有色金属研究院 | 一种镁合金表面转化处理液及其处理方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1711506C (ru) * | 1989-09-08 | 1994-08-15 | ВНИИ авиационных материалов | Способ получения защитного покрытия на деталях из магниевых сплавов, преимущественно крупногабаритных |
| JPH08109201A (ja) * | 1994-10-12 | 1996-04-30 | Shin Etsu Chem Co Ltd | 重合体スケール付着防止剤及びそれを使用する重合体製造方法 |
| US9574093B2 (en) * | 2007-09-28 | 2017-02-21 | Ppg Industries Ohio, Inc. | Methods for coating a metal substrate and related coated metal substrates |
| CN100588740C (zh) * | 2008-02-22 | 2010-02-10 | 陈东初 | 镁合金表面制备耐腐蚀性钝化膜的无铬处理液及其使用方法 |
| JP5813358B2 (ja) * | 2011-04-21 | 2015-11-17 | 株式会社Uacj | 高成形性Ａｌ−Ｍｇ−Ｓｉ系合金板及びその製造方法 |
-
2014
- 2014-02-20 US US14/184,998 patent/US20150232671A1/en not_active Abandoned
-
2015
- 2015-02-19 RU RU2016137422A patent/RU2662179C2/ru not_active IP Right Cessation
- 2015-02-19 EP EP15714047.6A patent/EP3108036A1/en not_active Withdrawn
- 2015-02-19 WO PCT/US2015/016618 patent/WO2015127080A1/en active Application Filing
- 2015-02-19 AU AU2015218940A patent/AU2015218940B2/en not_active Ceased
- 2015-02-19 CN CN201580013575.XA patent/CN106103800A/zh active Pending
- 2015-02-24 TW TW104105909A patent/TWI679306B/zh not_active IP Right Cessation
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2018
- 2018-07-12 US US16/033,809 patent/US20180319997A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037328A (en) * | 1978-12-07 | 1980-07-09 | Nihon Parkerizing | Surface processing solution and surface treatment for aluminum or aluminum alloy substrate |
| US6281774B1 (en) * | 1999-09-10 | 2001-08-28 | Sumitomo Special Metals Co., Ltd. | Corrosion-resistant permanent magnet and method for producing the same |
| JP2003253459A (ja) * | 2002-02-26 | 2003-09-10 | Iwate Prefecture | 表面処理剤、表面処理方法、及び表面処理された製品 |
| US20110008645A1 (en) * | 2008-03-11 | 2011-01-13 | Mark Andre Schneider | Process for coating metallic surfaces with a passivating agent, the passivating agent and its use |
| CN102660736A (zh) * | 2012-05-16 | 2012-09-12 | 广州有色金属研究院 | 一种镁合金表面转化处理液及其处理方法 |
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| Publication number | Publication date |
|---|---|
| AU2015218940A1 (en) | 2016-09-22 |
| WO2015127080A1 (en) | 2015-08-27 |
| US20180319997A1 (en) | 2018-11-08 |
| CN106103800A (zh) | 2016-11-09 |
| RU2016137422A (ru) | 2018-03-23 |
| RU2662179C2 (ru) | 2018-07-24 |
| TW201538792A (zh) | 2015-10-16 |
| AU2015218940B2 (en) | 2017-06-29 |
| RU2016137422A3 (zh) | 2018-03-23 |
| US20150232671A1 (en) | 2015-08-20 |
| EP3108036A1 (en) | 2016-12-28 |
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