CN114086169A - 锡面保护剂 - Google Patents
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- CN114086169A CN114086169A CN202111319675.9A CN202111319675A CN114086169A CN 114086169 A CN114086169 A CN 114086169A CN 202111319675 A CN202111319675 A CN 202111319675A CN 114086169 A CN114086169 A CN 114086169A
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000003223 protective agent Substances 0.000 title claims abstract description 32
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- 239000004094 surface-active agent Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 8
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims abstract description 5
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 claims abstract description 4
- LPMBTLLQQJBUOO-KTKRTIGZSA-N (z)-n,n-bis(2-hydroxyethyl)octadec-9-enamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N(CCO)CCO LPMBTLLQQJBUOO-KTKRTIGZSA-N 0.000 claims abstract description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims abstract description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 4
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000012964 benzotriazole Substances 0.000 claims abstract description 4
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 4
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims abstract description 4
- 235000013162 Cocos nucifera Nutrition 0.000 claims 1
- 244000060011 Cocos nucifera Species 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 abstract description 4
- 235000019864 coconut oil Nutrition 0.000 abstract description 3
- 239000003240 coconut oil Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- -1 azole compound Chemical class 0.000 description 1
- UUCUJMMIYKJBDQ-UHFFFAOYSA-N dodecanoyl tetradecanoate Chemical compound CCCCCCCCCCCCCC(=O)OC(=O)CCCCCCCCCCC UUCUJMMIYKJBDQ-UHFFFAOYSA-N 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001432 tin ion Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- C23C22/58—Treatment of other metallic material
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
本发明涉及一种锡面保护剂,包括以下重量份的各组分:表面活性剂0.5‑5份,分散剂0.3‑10份,辅助化合物0.1‑5份,水80‑90份。所述表面活性剂为有机多元膦酸,该有机多元膦酸为羟基乙叉二膦酸、氨基三亚甲基膦酸、乙二胺四亚甲基磷酸及其钠盐中的一种或几种按照任意比例混合而成。所述分散剂为椰子油二乙醇酰胺、油酸二乙醇酰胺或月桂肉豆蔻酸单乙醇酰胺中的一种或几种按照任意比例混合而成。所述辅助化合物为苯并三氮唑、苯并咪唑或硫脲的一种或几种按照任意比例混合而成。本发明的优点是:锡面保护剂可用以保护锡面不被环境中的其他化学成分所腐蚀而遭到破坏,在金属件的防护方面应用广泛。
Description
技术领域
本发明涉及一种锡面保护剂,涉及印刷线路板工艺技术领域。
背景技术
化学镀锡作为PCB表面涂覆的一种,对铜质基材进行表面修饰加以保护的同时,利用电镀成型的锡面作为抗蚀刻层,而后利用强碱来剥除干膜以蚀刻出线路。然而,锡为两性金属,在酸性或者碱性环境下容易导致锡面变色,影响其焊接性能。锡面保护剂可用以保护锡面不被环境中的其他化学成分所腐蚀而遭到破坏,在金属件的防护方面应用广泛。 传统的锡面保护采用磷酸钠保护剂,但是存在保护效果不理想,槽液寿命短,保护剂容易发混等缺点。
发明内容
为克服现有技术的缺陷,本发明提供一种锡面保护剂,本发明的技术方案是:
一种锡面保护剂,包括以下重量份的各组分:
表面活性剂0.5-5份,分散剂0.3-10份,辅助化合物0.1-5份,水80-90份。
所述的表面活性剂0.5份,分散剂3份,辅助化合物1份,水80份。
所述的表面活性剂2份,分散剂5份,辅助化合物3份,水85份。
所述的表面活性剂5份,分散剂10份,辅助化合物5份,水90份。
所述表面活性剂为有机多元膦酸,该有机多元膦酸为羟基乙叉二膦酸、氨基三亚甲基膦酸、乙二胺四亚甲基磷酸及其钠盐中的一种或几种按照任意比例混合而成。
所述分散剂为椰子油二乙醇酰胺、油酸二乙醇酰胺或月桂肉豆蔻酸单乙醇酰胺中的一种或几种按照任意比例混合而成。
所述辅助化合物为苯并三氮唑、苯并咪唑或硫脲的一种或几种按照任意比例混合而成。
本发明的优点是:锡面保护剂可用以保护锡面不被环境中的其他化学成分所腐蚀而遭到破坏,在金属件的防护方面应用广泛。该锡保护剂中的有机多元膦酸是一种成膜物质,可以与锡络合,在锡表面生成一层保护膜,防止外部酸碱对锡面的进一步腐蚀;同时该锡保护剂在酸性条件下很容易清洗,无残留,不会影响后续的焊接等制程。该锡保护剂中添加了一种唑类化合物,可以与锡在碱性条件下形成稳定的络合物覆盖在锡表面,阻止强碱与锡面的进一步反应。另一种吸附型保护剂,通过吸附改变了金属表面的电荷状态和界面性质,使金属表面能量状态趋于稳定,增加腐蚀反应的活化能,减缓腐蚀速度。
附图说明
图1是无锡保护剂加工后的产品示意图。
图2是添加锡保护剂加工后的产品示意图。
具体实施方式
下面结合具体实施例来进一步描述本发明,本发明的优点和特点将会随着描述而更为清楚。但这些实施例仅是范例性的,并不对本发明的范围构成任何限制。本领域技术人员应该理解的是,在不偏离本发明的精神和范围下可以对本发明技术方案的细节和形式进行修改或替换,但这些修改和替换均落入本发明的保护范围内。
实施例1:
一种锡面保护剂,包括以下重量份的各组分:
所述的表面活性剂0.5份,分散剂0.3份,辅助化合物0.1份,水80份。
所述表面活性剂为有机多元膦酸,该有机多元膦酸为氨基三亚甲基膦酸;所述分散剂为油酸二乙醇酰胺;所述辅助化合物为苯并咪唑。
实施例2:
一种锡面保护剂,包括以下重量份的各组分:
所述的表面活性剂2份,分散剂5份,辅助化合物3份,水85份。
所述表面活性剂为有机多元膦酸,该有机多元膦酸为羟基乙叉二膦酸;所述分散剂为椰子油二乙醇酰胺;所述辅助化合物为苯并三氮唑。
实施例3:
一种锡面保护剂,包括以下重量份的各组分:表面活性剂5份,分散剂10份,辅助化合物5份,水90份。
所述表面活性剂为有机多元膦酸,该有机多元膦酸为乙二胺四亚甲基磷酸或钠盐;所述分散剂为两亲性化学品,具有较强的渗透性,可以增加油性以及水性组分在同一体系中的相容性,如月桂肉豆蔻酸单乙醇酰胺中;所述辅助化合物为苯并咪唑和硫脲按照任意比例混合而成。
表1是实施例1至实施例3对镀锡光板保护能力的测试,测试过程是在去膜溶液中完成的,具体测试结果如下:
从以上数据可以得知,实施例1至实施例3中,锡离子的浓度变化甚小,本实施例制备的锡面保护剂具有较好的稳定性,对镀锡光板的保护能力强。
由此可见,该保护剂具有良好的锡镀层保护功能,可以使镀层在常温下不发黑,高温下不发黄,同时不影响镀层的可焊性,另外,该锡面保护剂稳定性良好。
在印刷线路板的碱性蚀刻工艺中,通过在强碱溶液中加入锡面保护剂不但可以改变金属锡的氧化还原电位,使锡面更加难以与强碱发生化学反应,而且可在锡面上形成一层保护膜,从而隔绝强碱与锡面,起到保护锡面的作用。
本发明所述锡保护剂及其组合物适用于印刷线路板的碱性蚀刻工艺中,通过将锡保护剂加入碱性去膜液中,保护剂在锡面形成保护膜,进一步阻止碱性液体与锡面的接触;
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (7)
1.一种锡面保护剂,其特征在于,包括以下重量份的各组分:
表面活性剂0.5-5份,分散剂0.3-10份,辅助化合物0.1-5份,水80-90份。
2.根据权利要求1所述的一种锡面保护剂,其特征在于,所述的表面活性剂0.5份,分散剂3份,辅助化合物1份,水80份。
3.根据权利要求1所述的一种锡面保护剂,其特征在于,所述的表面活性剂2份,分散剂5份,辅助化合物3份,水85份。
4.根据权利要求1所述的一种锡面保护剂,其特征在于,所述的表面活性剂5份,分散剂10份,辅助化合物5份,水90份。
5.根据权利要求2至4任意一项所述的一种锡面保护剂,其特征在于,所述表面活性剂为有机多元膦酸,该有机多元膦酸为羟基乙叉二膦酸、氨基三亚甲基膦酸、乙二胺四亚甲基磷酸及其钠盐中的一种或几种按照任意比例混合而成。
6.根据权利要求2至4任意一项所述的一种锡面保护剂,其特征在于,所述分散剂为椰子油二乙醇酰胺、油酸二乙醇酰胺或月桂肉豆蔻酸单乙醇酰胺中的一种或几种按照任意比例混合而成。
7.根据权利要求2至4任意一项所述的一种锡面保护剂,其特征在于,所述辅助化合物为苯并三氮唑、苯并咪唑或硫脲的一种或几种按照任意比例混合而成。
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CN101258268B (zh) * | 2005-09-07 | 2010-11-10 | 日矿金属株式会社 | 锡和锡合金的水系抗氧化剂 |
CN103668147A (zh) * | 2012-09-26 | 2014-03-26 | 广州天至环保科技有限公司 | 一种能提高锡及其合金镀层综合性能的无铬水性保护剂 |
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JP2019002062A (ja) * | 2017-06-20 | 2019-01-10 | 日本高純度化学株式会社 | 外観保護剤及び該外観保護剤を用いて処理された金属体 |
CN109831879A (zh) * | 2019-02-23 | 2019-05-31 | 上海富柏化工有限公司 | 一种护锡型pcb去膜液 |
CN111118501A (zh) * | 2020-01-07 | 2020-05-08 | 深圳市星扬高新科技有限公司 | 一种锡面保护剂及其制备方法 |
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2021
- 2021-11-09 CN CN202111319675.9A patent/CN114086169A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US20030176305A1 (en) * | 2002-03-15 | 2003-09-18 | Hoyt Jerry D. | Alkaline sensitive metal cleaning composition, method for cleaning an alkaline sensitive metal surface, and washing facility |
JP2005206860A (ja) * | 2004-01-21 | 2005-08-04 | Ebara Udylite Kk | スズまたはスズ合金めっきの変色除去・防止剤 |
US20080108539A1 (en) * | 2004-03-23 | 2008-05-08 | Johnsondiversey, Inc. | Cleaning and Corrosion Inhibition System and Composition for Surfaces of Aluminum or Colored Metals and Alloys Thereof Under Alkaline Conditions |
CN101258268B (zh) * | 2005-09-07 | 2010-11-10 | 日矿金属株式会社 | 锡和锡合金的水系抗氧化剂 |
CN103668147A (zh) * | 2012-09-26 | 2014-03-26 | 广州天至环保科技有限公司 | 一种能提高锡及其合金镀层综合性能的无铬水性保护剂 |
US20140261567A1 (en) * | 2013-03-15 | 2014-09-18 | Ecolab Usa Inc. | Inhibiting corrosion of aluminum on alkaline media by phosphinosuccinate oligomers and mixtures thereof |
JP2019002062A (ja) * | 2017-06-20 | 2019-01-10 | 日本高純度化学株式会社 | 外観保護剤及び該外観保護剤を用いて処理された金属体 |
CN109831879A (zh) * | 2019-02-23 | 2019-05-31 | 上海富柏化工有限公司 | 一种护锡型pcb去膜液 |
CN111118501A (zh) * | 2020-01-07 | 2020-05-08 | 深圳市星扬高新科技有限公司 | 一种锡面保护剂及其制备方法 |
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