CN101956220A - Plating pretreatment oil remover composite and preparation and use methods thereof - Google Patents
Plating pretreatment oil remover composite and preparation and use methods thereof Download PDFInfo
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- CN101956220A CN101956220A CN 201010527987 CN201010527987A CN101956220A CN 101956220 A CN101956220 A CN 101956220A CN 201010527987 CN201010527987 CN 201010527987 CN 201010527987 A CN201010527987 A CN 201010527987A CN 101956220 A CN101956220 A CN 101956220A
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Abstract
The invention relates to a plating pretreatment oil remover composite and the preparation and use methods thereof. The oil remover composite can be widely used to remove oil from the surfaces of various base materials such as iron, copper, copper alloy, zinc, zinc alloy, aluminum and aluminum alloy and have the advantages of high efficiency, low concentration, long service life and environmental friend. The oil remover composite contains inorganic matter, nonionic surfactant and organic additive, uses deionized water as the solvent and comprises the following components in parts by weight: 20-60 parts of sodium carbonate, 10-20 parts of sodium phosphate, 15-30 parts of beta-naphthol ethoxylate, 1-30 parts of sodium hydroxide, 40-80 parts of inorganic emulsifier, 7-9 parts of organic emulsifier and 1000 parts of deionized water.
Description
Technical field
The present invention relates to electroplating pretreatment process, particularly relate to a kind of pre-electroplating treatment degreaser composition and preparation and using method.
Background technology
Base material is the main body in the metal finishing.The quality of base material and the performance of the finished product are closely related.For preventing matrix by airborne dioxygen oxidation, matrix surface generally all can have one deck grease to protect.These greases must clean up before electroplating processing, otherwise can make coating flaw occur, as pin hole, burr etc., can cause when serious electroplating failure, do over again, and cause plating bath overbalance and stability.Therefore, selecting a kind of fine to remove oil production in electroplating process, is very important.
The oil production that removes commonly used comprises organic products and inorganic product.Organic solvent toluene commonly used, dimethylbenzene, trieline etc. though can directly dissolve grease, have irritating smell usually, are detrimental to health contaminate environment.Therefore, organic Oil solvent that removes is replaced by inorganic degreaser gradually, and its principle is to remove the greasy dirt of matrix surface in basic solution by saponification and emulsifying effect.
Yet, in the at present common on the market inorganic degreaser, mostly contain a large amount of highly basic material sodium hydroxide, the violent in toxicity sodium cyanide in addition that has, meeting corrosion activity matrix is as aluminium alloy, magnesium alloy, zinc alloy etc.In use, need be heated to higher temperature competence exertion effect usually, evaporable alkali mist meeting this moment grievous injury HUMAN HEALTH, and contaminate environment.In addition, the agent alive of high alveolitoid table is all adopted in the agent alive of the table in the additive usually, in use can produce a large amount of foams, and therefore the waste water intractable uses the restriction that has been subjected to considerable restraint, particularly environmental requirement.
Summary of the invention
The objective of the invention is to characteristic at above-mentioned pre-electroplating treatment degreaser, propose a series ofly can be widely used in multiple base material, oil removing as surfaces such as iron, copper and copper alloy, zinc and zinc alloy, aluminium and aluminium alloys, and have efficient, lower concentration, long service life, eco-friendly pre-electroplating treatment degreaser composition and preparation and a using method.
For achieving the above object, the present invention adopts following technical scheme:
A kind of pre-electroplating treatment degreaser composition, it comprises inorganics, nonionogenic tenside and organic additive, is solvent with the deionized water, and each composition is as follows by weight:
Yellow soda ash 20-60 part
Sodium phosphate 10-20 part
2-Naphthol Soxylat A 25-7 15-30 part
Sodium hydroxide 1-30 part
Inorganic emulsifier 40-80 part
Organic emulsifier 7-9 part
1000 parts of deionized waters.
Described inorganic emulsifier is one or more of water glass, potassium silicate, kaolin, wilkinite and lime.
Described organic emulsifier is negatively charged ion and nonionogenic tenside, and both ratios are at 5～10:1; The anion form agent of living is selected from one or more of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, succsinic acid dihexyl sodium monosulfate, sodium dibutyl naphthalene sulfonate, sodium lignosulfonate; Nonionogenic tenside then is selected from one or more of fatty alcohol-polyoxyethylene ether and coconut oil diethanol amide, lauric acid diethyl amide, Oleum Cocois single ethanol amide.
A kind of pre-electroplating treatment degreaser preparation of compositions method, its process is: the deionized water of putting into 500 weight parts in reactor, difference weighing 20-60 weight parts of sodium carbonate, the sodium phosphate of 10-20 weight part, the sodium hydroxide of 1-30 weight part and the inorganic emulsifier of 40-80 weight part, add successively in the entry, fully stirring and dissolving; Be cooled to room temperature, add the 2-Naphthol Soxylat A 25-7 of 15-30 weight part and the organic emulsifier of 7-9 weight part, stir 0.5h, dissolving back constant volume stirs and gets final product fully.
A kind of pre-electroplating treatment degreaser preparation of compositions method, its process is: earlier the sodium phosphate of 20-60 weight parts of sodium carbonate, 10-20 weight part, the inorganic emulsifier of 40-80 weight part, the sodium hydroxide of 1-30 weight part are added in the mixer, stir, with the organic emulsifier of the 2-Naphthol Soxylat A 25-7 of liquid material 15-30 weight part, 7-9 weight part with dissolve with ethanol after, utilize the fog system of stirrer, be sprayed at uniformly in the solid materials in the mixer that continues to stir, appoint ethanol to volatilize naturally and get final product.
A kind of using method of pre-electroplating treatment degreaser composition, keep degreaser under 25-90 ℃ of condition, the matrix of need oil removing is soaked in this degreaser composition 15min at least, taking-up cleans up with clear water, with washed with de-ionized water, guarantee that cleaning surfaces does not have the degreaser retentate and can descend the step to handle through the twice clear water.
Described temperature is 70 ℃.
Tertiary sodium phosphate has the effect of demineralized water and the magnesium in the water, calcium form precipitation, demineralized water among the present invention; Make solution be alkalescence after the yellow soda ash hydrolysis, alkaline solution and greasy dirt generation saponification form the water-soluble material of energy, reach the smeary effect of removing.And, by reducing the amount of wherein using sodium hydroxide, avoid the metal higher to activity, as magnesium, aluminium, cause corrosion, simultaneously can be according to the amount of regulating yellow soda ash wherein, the alkalescence of control plating bath is strong and weak, can be fit to different metal bases.
Wherein the 2-Naphthol Soxylat A 25-7 is called BNO again
12, a kind of nonionogenic tenside that is used for electroplating industry and chemical industry.It is used to prepare the brightening agent of electroplating industry.Elementary brightening agent improves cloud point, improves covering power and improves toughness.In this invention, we introduce it as the emulsifying agent in the degreaser, its oleophilic moiety (naphthyl) directly and oxygen Vinyl Ether result, and the Sauerstoffatom on the hydrophilic radical Soxylat A 25-7 chain can with the water generates hydrogen bond association, therefore can be dissolved in the water, emulsifying effectiveness is fine.With other polyethenoxy ether class, as polyoxyethylene nonylphenol ether NP series, OP series, alkylphenol polyoxyethylene polyethenoxy ether (high alveolitoid non-ionic surfactant) etc. is compared, and has characteristics such as low bubble, easy cleaning, its emulsifying property excellence is introduced wherein as organic emulsifier simultaneously.
Inorganic emulsifier among the present invention can not reduce the surface tension of water, but on can the interface attached to metal and water, the protective membrane of formation solids plays the dispersive effect.In this invention, inorganic emulsifier mainly is meant water glass, potassium silicate, kaolin, one or more of wilkinite and lime.
Organic emulsifier among the present invention comprises negatively charged ion and nonionogenic tenside, and both ratios are 5～10:1.Wherein the anion form agent of living is selected from one or more of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, succsinic acid dihexyl sodium monosulfate, sodium dibutyl naphthalene sulfonate, sodium lignosulfonate, under the encirclement of water molecules, is dissociated into ROSO
2-O-and Na, electronegative ROSO
2-O-has surfactivity, has decontamination preferably, and dispersion, emulsification, wetting property can effectively be removed the greasy dirt of substrate surface.And nonionogenic tenside mainly is selected from one or more of fatty alcohol-polyoxyethylene ether with low bubble performance and coconut oil diethanol amide, lauric acid diethyl amide, Oleum Cocois single ethanol amide, has better water solubility and emulsifying capacity.
The table of choosing among the present invention agent alive all is the product of low bubble, strong detergency, in use cleans easily, and waste water is also handled easily after producing, and meets environmental protection requirement.
Product preparation process of the present invention is: the deionized water of putting into 500 weight parts in reactor, difference weighing 20-60 weight parts of sodium carbonate, the sodium phosphate of 10-20 weight part, the sodium hydroxide of 1-30 weight part and the inorganic emulsifier of 40-80 weight part, add successively in the entry, fully stirring and dissolving; Be cooled to room temperature, add the 2-Naphthol Soxylat A 25-7 of 15-30 weight part and the organic emulsifier of 7-9 weight part, stir 0.5h, dissolving back constant volume stirs and gets final product fully.
In actual production, for the packing box convenient transportation, often make solid phase prod, sell.Main way is, earlier solid materials yellow soda ash, sodium phosphate, inorganic emulsifier etc. are added in the mixer, stir, with liquid material with dissolve with ethanol after, utilize the fog system of stirrer, be sprayed at uniformly in the solid materials of the batch mixing machine that continues stirring, appoint ethanol to volatilize naturally and get final product.
According to different sorts and contain greasy dirt base material in various degree, choose different configuration proportions.When heavier, need to increase BNO as greasy dirt content
12, sodium hydroxide, inorganic emulsifier and organic emulsifier content, to reach deoiling effect preferably; And greasy dirt content is when light, and content then can be lower.If base materials such as copper and copper alloy, iron, alkalescence can be stronger, and for aluminium alloy, magnesium alloy, zinc alloy etc., activity is stronger, must reduce sodium hydroxide, carbonate content.If oil removing articles for use alkalescence is stronger, can fall into plating tank with containing more impurity in the substrate surface corrosion, particularly base material, pollute.
Pre-electroplating treatment degreaser using method of the present invention is as follows: keep degreaser under mesophilic condition, optimal conditions is a room temperature to 70 ℃, the matrix of need oil removing is soaked in this degreaser composition 15min at least, taking-up cleans up with clear water, with washed with de-ionized water, guarantee that cleaning surfaces does not have the degreaser retentate and can descend step activation, plating step through the twice clear water.
The invention has the beneficial effects as follows:
1. have good wettability, perviousness and emulsifying property, degreasing power is strong, can prevent that smeary from adsorbing again;
2. solution-stabilized, pH changes little, and the greasy dirt charge capacity of skim soln is big, can use continuously for a long time;
3. foam is few, easy cleaning;
4. can demineralized water;
5. can be applicable to multiple base material, not corrode matrix surface;
6. can activate matrix surface;
7. have security, environmentally friendly.
Embodiment
Embodiment 1
Degreaser is composed as follows
Yellow soda ash 20 weight parts
Sodium phosphate 20 weight parts
BNO
1215 weight parts
Sodium hydroxide 2g weight part
Inorganic emulsifier 40 weight parts
Organic emulsifier 7 weight parts
Deionized water 1000 weight parts
Process for preparation is: put into the deionized water of 500 weight parts in reactor, part yellow soda ash, the sodium phosphate of 20 weight parts, the sodium hydroxide of 2 weight parts and the inorganic emulsifier of 40 weight parts of weighing 20 weight add in the entry, fully stirring and dissolving successively respectively; Be cooled to room temperature, add in the 2-Naphthol Soxylat A 25-7 and 7 of 15 weight parts two minutes organic emulsifier, stir 0.5h, dissolving back constant volume stirs and gets final product fully.
This prescription is applicable to aluminium and aluminium alloy, magnesium and the stronger base material of magnesium alloy isoreactivity.Weakly alkaline is not corroded base material, can effectively remove the greasy dirt of substrate surface.But, if the base material greasy dirt of magnalium carries out alkaline degreasing after than under the serious situation, then needing to clean with organic solvent earlier again.
At room temperature the workpiece of magnalium is put into the alkaline degreaser beaker for preparing, temperature remains on room temperature, and the too high meeting of temperature has certain damage to matrix.Time is not less than 15min, and the time is too short, does not reach deoiling effect.Time is taken out workpiece to the back, and clear water cleans up, clean up activation with deionized water after, alkaline chemical nickel-plating handles, workpiece is smooth behind the chemical nickel plating, no burr and flaw, reached need deoiling effect.
Embodiment 2:
Degreaser is composed as follows
Yellow soda ash 40 weight parts
Sodium phosphate 15 weight parts
BNO
1210 weight parts
Sodium hydroxide 10g weight part
Inorganic emulsifier 60 weight parts
Organic emulsifier 8 weight parts
Deionized water 1000 weight parts
Compound method is with embodiment 1.
This prescription is applicable to the oil removing of zinc and zinc alloy, its activity than magnalium a little less than, alkalescence can not cause corrosion to it slightly by force, therefore can improve wherein sodium hydroxide and the amount of yellow soda ash, improve and remove oil temperature, not only can guarantee not corrode base material, and improve deoiling effect.
Keep this degreaser solution in 40-45 ℃, workpiece is joined wherein, reduce the oil removing time a little, 10min gets final product, in order to avoid stronger alkaline corrosion base material.Clean up after the taking-up,, finish and electroplate the back bright dipping with carrying out alkaline bright galvanization behind 5% the hydrochloric acid activation, the coating surface light, smooth, the no concave-convex point, no burr flaw reaches deoiling effect.
Embodiment 3:
Degreaser is composed as follows
Yellow soda ash 60 weight parts
Sodium phosphate 10 weight parts
BNO
1230 weight parts
Sodium hydroxide 15 weight parts
Inorganic emulsifier 80 weight parts
Organic emulsifier 9 weight parts
Deionized water 1000 weight parts
Compound method is with embodiment 1.
This prescription is applicable to the oil removing of copper and copper alloy, ironware, and these base materials are insoluble to basic solution, therefore can adopt stronger alkaline degreasing liquid.Remove oil temperature and also can rise to 50-70 ℃.
Keep this degreaser solution temperature about 60 ℃, workpiece is put into wherein, the oil removing time, 5-7min can reach deoiling effect.Take out, rinse well, carry out acid copper-plating 15min.The taking-up post-flush is clean, coating minute surface light, no concave-convex point, burr, pin hole and flaw, deoiling effect excellence.
In order to test the life-span of this degreasing fluid, we contrast certain international renowned company 151 alkaline degreaser, same preparation 1L solution, utilize the latten(-tin) oil removing of medium tenacity oil pollution, each 5, preceding 80 deoiling effects of 151 are good, but latten(-tin) surface afterwards has a lot of globules to assemble, and deoiling effect can not reach requirement; And we mix and state degreaser can to reach 100 latten(-tin) deoiling effects good.Therefore, with respect to 151 degreasers, our product life is longer, and result of use also can reach higher requirement.
Claims (7)
1. a pre-electroplating treatment degreaser composition is characterized in that it comprises inorganics, nonionogenic tenside and organic additive, is solvent with the deionized water, and each composition is as follows by weight:
Yellow soda ash 20-60 part
Sodium phosphate 10-20 part
2-Naphthol Soxylat A 25-7 15-30 part
Sodium hydroxide 1-30 part
Inorganic emulsifier 40-80 part
Organic emulsifier 7-9 part
1000 parts of deionized waters.
2. pre-electroplating treatment degreaser composition as claimed in claim 1 is characterized in that described inorganic emulsifier is one or more of water glass, potassium silicate, kaolin, wilkinite and lime.
3. pre-electroplating treatment degreaser composition as claimed in claim 1 is characterized in that described organic emulsifier is negatively charged ion and nonionogenic tenside, and both ratios are at 5～10:1; The anion form agent of living is selected from one or more of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, succsinic acid dihexyl sodium monosulfate, sodium dibutyl naphthalene sulfonate, sodium lignosulfonate; Nonionogenic tenside then is selected from one or more of fatty alcohol-polyoxyethylene ether and coconut oil diethanol amide, lauric acid diethyl amide, Oleum Cocois single ethanol amide.
4. the described pre-electroplating treatment degreaser of claim 1 preparation of compositions method, it is characterized in that, its process is: the deionized water of putting into 500 weight parts in reactor, difference weighing 20-60 weight parts of sodium carbonate, the sodium phosphate of 10-20 weight part, the sodium hydroxide of 1-30 weight part and the inorganic emulsifier of 40-80 weight part, add successively in the entry, fully stirring and dissolving; Be cooled to room temperature, add the 2-Naphthol Soxylat A 25-7 of 15-30 weight part and the organic emulsifier of 7-9 weight part, stir 0.5h, dissolving back constant volume stirs and gets final product fully.
5. the described pre-electroplating treatment degreaser of claim 1 preparation of compositions method, it is characterized in that, its process is: earlier with the 20-60 weight parts of sodium carbonate, the sodium phosphate of 10-20 weight part, the inorganic emulsifier of 40-80 weight part, the sodium hydroxide of 1-30 weight part adds in the mixer, stir, 2-Naphthol Soxylat A 25-7 with liquid material 15-30 weight part, the organic emulsifier of 7-9 weight part with dissolve with ethanol after, utilize the fog system of stirrer, be sprayed at uniformly in the solid materials in the mixer that continues to stir, appoint ethanol to volatilize naturally and get final product.
6. the using method of the described pre-electroplating treatment degreaser of claim 1 composition, it is characterized in that, keep degreaser under 25-90 ℃ of condition, the matrix of need oil removing is soaked in this degreaser composition 15min at least, taking-up cleans up with clear water, with washed with de-ionized water, guarantee that cleaning surfaces does not have the degreaser retentate and can descend the step to handle through the twice clear water.
7. the using method of pre-electroplating treatment degreaser composition as claimed in claim 6 is characterized in that, described temperature is 70 ℃.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101914802A (en) * | 2010-07-27 | 2010-12-15 | 东莞运城制版有限公司 | High-efficiency electroplating chemical cleaning solution |
| CN102787322A (en) * | 2012-08-07 | 2012-11-21 | 重庆万力联兴实业(集团)有限公司 | Aluminium alloy surface alkaline degreasing agent |
| CN103805369A (en) * | 2014-03-04 | 2014-05-21 | 东莞市常晋凹版模具有限公司 | Copper-plated layer washing degreaser applied in electroplating industry |
| CN104032341A (en) * | 2013-03-05 | 2014-09-10 | 浙江伟星实业发展股份有限公司 | Oil removing solution and activation solution for zinc alloy preplating treatment and process |
| CN104562113A (en) * | 2014-11-27 | 2015-04-29 | 镇江润德节能科技有限公司 | Cleaning degreaser for electroplating |
| CN105331993A (en) * | 2015-11-20 | 2016-02-17 | 金川集团股份有限公司 | Alkaline soaking and cleaning agent for electroplated parts, and using method thereof |
| CN105331472A (en) * | 2015-11-20 | 2016-02-17 | 金川集团股份有限公司 | Alkaline electrolytic cleaning agent and cleaning method for electroplated parts |
| CN106563421A (en) * | 2016-10-28 | 2017-04-19 | 当涂县金龙机械有限公司 | Normal-temperature composite oil-removing adsorbent for metal plating pretreatment capable of achieving sterilization and preparation method thereof |
| CN106567112A (en) * | 2016-10-28 | 2017-04-19 | 当涂县金龙机械有限公司 | Normal-temperature compounded oil removal adsorbent with high oil removal efficiency for processing before metal plating and preparation method of normal-temperature compounded oil removal adsorbent |
| CN108360032A (en) * | 2018-05-08 | 2018-08-03 | 丹凤县荣毅电子有限公司 | A kind of electroplating technology of SMD automobile electronics |
| CN112981423A (en) * | 2019-12-02 | 2021-06-18 | 娄底市鼎宏自动化科技有限公司 | Surface oil stain treatment agent for mining machinery |
| CN115725974A (en) * | 2022-12-15 | 2023-03-03 | 合肥中聚和成电子材料有限公司 | Copper etching liquid composition |
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| CN101914802A (en) * | 2010-07-27 | 2010-12-15 | 东莞运城制版有限公司 | High-efficiency electroplating chemical cleaning solution |
| CN102787322A (en) * | 2012-08-07 | 2012-11-21 | 重庆万力联兴实业(集团)有限公司 | Aluminium alloy surface alkaline degreasing agent |
| CN104032341A (en) * | 2013-03-05 | 2014-09-10 | 浙江伟星实业发展股份有限公司 | Oil removing solution and activation solution for zinc alloy preplating treatment and process |
| CN104032341B (en) * | 2013-03-05 | 2016-08-17 | 浙江伟星实业发展股份有限公司 | Oil removing solution, activated solution and the technique of a kind of kirsite treatment before plating |
| CN103805369A (en) * | 2014-03-04 | 2014-05-21 | 东莞市常晋凹版模具有限公司 | Copper-plated layer washing degreaser applied in electroplating industry |
| CN104562113A (en) * | 2014-11-27 | 2015-04-29 | 镇江润德节能科技有限公司 | Cleaning degreaser for electroplating |
| CN105331472A (en) * | 2015-11-20 | 2016-02-17 | 金川集团股份有限公司 | Alkaline electrolytic cleaning agent and cleaning method for electroplated parts |
| CN105331993A (en) * | 2015-11-20 | 2016-02-17 | 金川集团股份有限公司 | Alkaline soaking and cleaning agent for electroplated parts, and using method thereof |
| CN106563421A (en) * | 2016-10-28 | 2017-04-19 | 当涂县金龙机械有限公司 | Normal-temperature composite oil-removing adsorbent for metal plating pretreatment capable of achieving sterilization and preparation method thereof |
| CN106567112A (en) * | 2016-10-28 | 2017-04-19 | 当涂县金龙机械有限公司 | Normal-temperature compounded oil removal adsorbent with high oil removal efficiency for processing before metal plating and preparation method of normal-temperature compounded oil removal adsorbent |
| CN108360032A (en) * | 2018-05-08 | 2018-08-03 | 丹凤县荣毅电子有限公司 | A kind of electroplating technology of SMD automobile electronics |
| CN112981423A (en) * | 2019-12-02 | 2021-06-18 | 娄底市鼎宏自动化科技有限公司 | Surface oil stain treatment agent for mining machinery |
| CN115725974A (en) * | 2022-12-15 | 2023-03-03 | 合肥中聚和成电子材料有限公司 | Copper etching liquid composition |
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