CN106514057B - A kind of washing weld-aiding cream, solder(ing) paste and preparation method thereof - Google Patents
A kind of washing weld-aiding cream, solder(ing) paste and preparation method thereof Download PDFInfo
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- CN106514057B CN106514057B CN201611186140.8A CN201611186140A CN106514057B CN 106514057 B CN106514057 B CN 106514057B CN 201611186140 A CN201611186140 A CN 201611186140A CN 106514057 B CN106514057 B CN 106514057B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3612—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with organic compounds as principal constituents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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Abstract
The present invention relates to a kind of washing weld-aiding creams, solder(ing) paste and preparation method thereof, which includes following components in percentage by weight：1 (3 aminopropyl) imidazoles abietate 40 50%, EO PO EO block copolymers 15 30%, polyethylene glycol (PEG) oleate 13 25%, halogen activator 5 8%, aerosil 0.2 2%, rilanit special 0.2 2%, corrosion inhibiter 0.05 2%.Solder(ing) paste prepared by the present invention has the property that：(1) heat resistanceheat resistant performance of caving in is good；(2) it is good to melt tin effect for fine solder joint；(3) distilled water cleaning can be used in postwelding residue；(4) help weldering activity high.The solder(ing) paste of the present invention can be applied to the welding of the electronic products such as computer, mobile phone, and by postwelding residue, thoroughly cleaning achievees the effect that high reliability, can be used distilled water as cleaning agent, more environmentally-friendly.
Description
Technical field
The invention belongs to industrial solder technical fields, and in particular to a kind of washing weld-aiding cream and preparation method thereof, and
The solder(ing) paste prepared using the washing weld-aiding cream.
Background technology
SMT is surface installation technique (surface mounting technology) (Surface Mount Technology), is current electronics
Assemble a kind of most popular technology and technique in industry.It is it is a kind of will be without pin or short leg surface-assembled component (referred to as
SMC/SMD, Chinese claim sheet component) be mounted on printed circuit board (Printed Circuit Board, PCB) surface or
On the surface of other substrates, the circuit load technology of welding assembly is subject to by the methods of Reflow Soldering or immersed solder.
Solder(ing) paste is a kind of novel welding material to come into being along with SMT.Solder(ing) paste is a complicated system, is
The lotion made of solder powder, paste paste-shaped welding combination (weld-aiding cream) and other additives mixeds.Solder(ing) paste is at normal temperatures
There is certain viscosity, electronic component just can be sticked to commitment positions, under welding temperature, with solvent and portions additive
Volatilization will be formed by weldering component together with printed circuit pad solder permanently connected.This is because being mixed with one in solder(ing) paste
Quantitative thixotropic agent has pseudoplastic fluid volume property.Solder(ing) paste is in printing, and by the thrust of scraper, viscosity declines,
When reaching template window, viscosity reaches minimum, therefore can pass through window and be deposited on the pad of PCB, with stopping for external force
Only, solder(ing) paste viscosity rapid rise again, is not in thus the slump and cross flow of printed pattern, obtains good printing effect
Fruit.
Common tin cream weld-aiding cream free of cleaning generally comprise resin (rosin), thixotropic agent, solvent, activator, corrosion inhibiter and
Other auxiliary agents.In the welding process, rosin plays removal glass putty oxide on surface and protection glass putty during high temperature reflux
The effect not being reoxidized；After the completion of welding, rosin uniform fold is on pad surface.With the development of electronics industry, respectively
Kind of electronic product emerges one after another, requirements at the higher level are proposed to the packaging technology of product, to ensure the product later stage in the presence of a harsh environment
Continual and steady work ensures preferable electric property, or the post-processing to pcb board is remained in order to avoid the rosin of pad surface
It has an impact, the rosin residual of these pcb board pad surfaces for having particular/special requirement is cleaned.
To ensure to clean the residual of thorough tin cream pad surface, currently used cleaning agent is organic solvent, main
Ingredient is chlorinated organic solvent, hydrocarbon solvent etc..Wherein, organic solvent is big to operator's physical impairment, and flash-point is low and inflammable easy
Quick-fried, environmental pollution is serious, and the organic solvent of chlorine fluorine hydrogen is serious to air breakup, is used by limitation.
Chinese invention patent application CN 103909358A disclose " a kind of washing tin cream and preparation method thereof ", by making
Reach washing with surfactant-based solvent dissolving rosin component to require, be formulated Halogen, is suitable for high-reliability electronic encapsulation production
Product washing process, and remain the product of particular/special requirement to postwelding；Chinese invention patent application CN 102161135A are disclosed
" a kind of lead-free soldering wire and its water-soluble flux used " substitutes rosin as carrier using high molecular weight water soluble polymer,
It is washed with water conducive to postwelding, reduces production and Rework Technics of the environmental pollution brought using cleaning agent containing chlorine for PCB.This two
Part document both provides not halogen formula, avoids problem of environmental pollution, but also affects helping for weld-aiding cream simultaneously and weld activity.
Invention content
The present invention is based on different Research ideas, remain the active component of rosin in existing weld-aiding cream, and to rosin
Activity is reinforced, and innovatively using the halogen activator without chlorine, provides a kind of heat resistanceheat resistant and caves in that performance is good, and fine solder joint melts tin
Effect is good, and postwelding residual is easy to wash, and meets Halogen standard, and there is more general Halogen formula better help to weld active help
Soldering paste, and the washing solder(ing) paste for meeting SMT technological requirements using weld-aiding cream preparation.
To achieve the above object, concrete scheme of the invention is as follows：
A kind of washing weld-aiding cream, including following components in percentage by weight：
The structural formula of the EO-PO-EO block copolymers is
Preferably, the EO-PO-EO block copolymers are BASF AGOne kind in PE series.
Further, the washing weld-aiding cream includes following components in percentage by weight：
The structural formula of the EO-PO-EO block copolymers is
Preferably, the EO-PO-EO block copolymers are BASF AGOne kind in PE series.
Further, 1- (3- aminopropyls) the imidazoles abietate is by 1- (3- aminopropyls) imidazoles and rosin to rub
That ratio 1:1 ratio is dissolved in isopropanol, made of dry after neutralization reaction；
Preferably, the rosin is one kind in hydrogenated rosin, maleic acid modified rosin, acrylic acid modified rosin.
Further, the polyethylene glycol (PEG) oleate be polyethylene glycol 200 monoleate, polyethylene glycol 200 dioleic acid ester,
The double oleic acid of polyethylene glycol 400 monoleate, polyethylene glycol 400 dioleic acid ester, Macrogol 600 monoleate, Macrogol 600
One or more of ester.
Further, the halogen active agent is the organic amine salt of hydroiodic acid；
Further, the halogen active agent is 1,2- ethylenediamines, two hydriodate, 1,2- dimethyl -2- isothiourea hydrogen iodine
One kind in hydrochlorate, N- amino-N- amyl guanidine hydriodates.
Further, the aerosil is hydrophobicity aerosil；
Preferably, the aerosil is a watt gram model N20, Degussa model AEROSIL 380, Degussa model
One kind in A200, moral mountain model REOLOSIL QS40, Cabot M-5.
Further, the corrosion inhibiter is one in 1,2,3- benzotriazoles, benzimidazole, methylbenzotriazole
Kind.
The present invention also provides a kind of preparation methods of above-mentioned washing weld-aiding cream, include the following steps：
Raw material are weighed by weight percentage；
By 1- (3- aminopropyls) imidazoles abietate, EO-PO-EO block copolymers, polyethylene glycol (PEG) oleate, halogen activation
Agent, rilanit special, corrosion inhibiter are added in beaker and mix, and after being heated into clear solution, mix slowly cooling, obtain paste mixing
Object；
The paste mixture is mixed with halogen activator, aerosil, is ground with three-roll grinder, cream is obtained
Body；
The lotion is detected with Hegman grind gage, when the lotion fineness is less than 10 μm, washing is obtained and helps weldering
Cream.
The present invention also provides a kind of washing solder(ing) pastes, contain following component：Above-mentioned washing weld-aiding cream, tinbase spherical solder
Powder.
Wherein：
The use of 1- (3- aminopropyls) the imidazoles abietate improves the water solubility of product of the present invention, and the present invention
1- (3- aminopropyls) imidazoles abietate be by 1- (3- aminopropyls) imidazoles and rosin with molar ratio 1:1 ratio is dissolved in
In isopropanol, made of dry after neutralized reaction, rosin active component can be remained, and add to the activity of rosin
By force.Preferably, the additive amount of 1- (3- aminopropyls) imidazoles abietate of the present invention is the 40-50% of weld-aiding cream quality of the present invention.
The EO-PO-EO block copolymers have following characteristic：(1) has viscosity appropriate and viscosity, and viscosity is with temperature
It is low to spend change rate, can be used for allocating washing solder(ing) paste；(2) have surfactant properties, postwelding contributes to residual to clean；(3)
Has a heat-resisting quantity, when welding stablizes, and flue gas is few, and volatilization is few, and retention amount is big in postwelding residue, remains in distillation conducive to postwelding
It is thoroughly cleaned in water.BASF AGPE series can be used, such as：PE 3100、
4300、6100、6200、6400、6800、8100、9200、9400、10100、10150.Preferably, EO-PO-EO blocks of the present invention
The additive amount of copolymer is the 15-30% of weld-aiding cream quality of the present invention.
The polyethylene glycol (PEG) oleate has following characteristic：(1) there is viscosity appropriate, can be used for allocating washing scolding tin
Cream；(2) it is in water dispersed, postwelding, which helps to remain, to be cleaned；(3) has a heat-resisting quantity, when welding stablizes, and flue gas is few, waves
Hair is few, and retention amount is big in postwelding residue, remains in distilled water conducive to postwelding and thoroughly cleans.Preferably, the poly- second of the present invention two
The additive amount of alcohol oleate is the 13-25% of weld-aiding cream quality of the present invention.
The halogen active agent is the organic amine salt of hydroiodic acid, and preferred embodiments of the present invention are：1,2- ethylenediamine dihydro iodine
One kind in hydrochlorate, 1,2- dimethyl -2- isothioureas hydriodate, N- amino-N- amyl guanidine hydriodates.The halogen reactive
Agent has following characteristic：(1) contain iodine, without chlorine element, bromo element, a large amount of additions still conform to standard GB/T/T 31475
2015《Circuit assembly high quality intraconnection solder(ing) paste》About the requirement of Halogen standard, i.e.,：Chlorine≤900PPM, bromine≤
900PPM, chlorine+bromine≤900PPM；(2) more general Halogen activating agent, which has, preferably helps weldering activity, it is preferred that halogen of the present invention
The additive amount of plain activating agent is the 5-8% of weld-aiding cream quality of the present invention.
The present invention is using the two kinds of combinations of aerosil and rilanit special with the use of as thixotropic agent.It is described
Aerosil has following characteristic：(1) good thixotroping structure can be formed by suitable activating process；(2) solid powder
Last shape, easily dispersion, is conducive to cleaning in water, is different from the common amide of solder(ing) paste, castor-oil plant oils postwelding in solid-like and is not easy
It is dissolved in water.Preferably, the additive amount of aerosil of the present invention is the 0.2-2% of weld-aiding cream quality of the present invention.Because using
The weld-aiding cream compliance that single aerosil does thixotropic agent modulation is poor, can influence the printing effect of solder(ing) paste.The present invention
Find that a small amount of addition rilanit special can improve solder(ing) paste printing performance through overtesting, at the same postwelding residue still have it is washable
Property.Preferably, the additive amount of rilanit special of the present invention is the 0.2-2% of weld-aiding cream quality of the present invention.
When the washing weld-aiding cream of the present invention is mixed with tinbase spherical solder powder, solder(ing) paste can be obtained.Here tinbase
Spherical solder powder can be obtained by centrifugation or ultrasonic atomization process are atomized and are sieved.The granular size of tinbase spherical solder powder
It is identical as used in routine, usually 25-45 μm, 20-38 μm or thinner.The present invention requires fusing point to selected solder alloy
Less than 250 DEG C, traditional Sn can be used63Pb37、Sn62Pb36Ag2Alloy can also use novel lead-free alloy, such as：
SnAgCu, SnAg, SnBi, SnBiCu, SnBiAg, SnBiCuSb etc..These solder alloys can also include one or more Bi,
In, Ag, Ni, Co, Mo, Fe, P, Ge or the like.
The present invention by wash weld-aiding cream be used to prepare washing solder(ing) paste when, to wash weld-aiding cream content do not limit especially
System；When the content for washing weld-aiding cream reaches the 8-14% of washing solder(ing) paste total amount, the washing solder(ing) paste of optimum performance is can get,
This is the optimum proportioning that the industry is assured that according to the specific ingredient of tinbase spherical solder powder.The washing weld-aiding cream of the present invention
It can be mainly used in and be mixed to form solder(ing) paste by being stirred under vacuum with tinbase spherical alloy powder (fusing point is less than 250 DEG C), be applied to
The surface mount process of electronic product.
The beneficial effects of the present invention are：
The present invention enhances solvent polyethylene glycol (PEG) oleate pair using EO-PO-EO block copolymers as surfactant
The dissolubility of resin 1- (3- aminopropyls) imidazoles abietate, and aqueous solvent is remaining to postwelding molten during enhancing washing process
Xie Xing.Moreover, the present invention is creatively improved the weld-aiding cream of the prior art using aerosil, to ensure this hair
The heat resistanceheat resistant of bright weld-aiding cream is caved in ability, is conducive to the present invention in use to the adaptability of SMT techniques.Using free from chloride
The organic amine salt of hydroiodic acid still conforms to the requirement of national Halogen standard as halogen active agent, a large amount of additions, and more general
Halogen activating agent, which has, preferably helps weldering activity.
Solder(ing) paste prepared by the present invention has the property that：(1) heat resistanceheat resistant performance of caving in is good；(2) fine solder joint melts tin effect
It is good；(3) distilled water cleaning can be used in postwelding residue；(4) help weldering activity high.The solder(ing) paste of the present invention can be applied to computer, hand
The welding of the electronic products such as machine, by postwelding residue, thoroughly cleaning achievees the effect that high reliability, and distilled water conduct can be used
Cleaning agent, it is more environmentally-friendly.
Specific implementation mode
The embodiment of the present invention is described below in detail, the examples of the embodiments are intended to be used to explain the present invention, and cannot
It is interpreted as limitation of the present invention.In the examples where no specific technique or condition is specified, according to described by document in the art
Technology or condition or carried out according to product description.Reagents or instruments used without specified manufacturer is that can lead to
Cross the conventional products of acquisition purchased in market.
Embodiment 1：A kind of preparation of washing weld-aiding cream
1 embodiment 1-5 washing weld-aiding cream formula tables (w/w%) of table
Prepare 1- (3- aminopropyls) imidazoles abietate：1- (3- aminopropyls) imidazoles and hydrogenated rosin are with molar ratio 1:1
Ratio be dissolved in isopropanol, after neutralization reaction drying form.
Composition of raw materials：It is shown in Table 1.
Preparation method：
By 1- (3- aminopropyls) imidazoles abietate,PE 3100, polyethylene glycol 400 monoleate, 1,
Two hydriodate of 2- ethylenediamines, rilanit special, 1,2,3- benzotriazoles are added in beaker and mix, after being heated to clear solution
Cooling is mixed slowly, paste mixture is obtained；
By above-mentioned paste mixture and 1, the aerosil mixing of two hydriodate of 2- ethylenediamines, watt gram model N20,
It is ground with three-roll grinder, obtains lotion；
The lotion obtained through three-roll grinder grinding is detected with Hegman grind gage, when lotion fineness is less than 10 μm
When, obtain the washing weld-aiding cream of this implementation 1.
Embodiment 2：A kind of preparation of washing weld-aiding cream
Prepare 1- (3- aminopropyls) imidazoles abietate：1- (3- aminopropyls) imidazoles and maleic acid modified rosin with mole
Than 1:1 ratio is dissolved in isopropanol, dry after neutralization reaction to form.
Composition of raw materials：It is shown in Table 1.The preparation method is the same as that of Example 1.
Embodiment 3：A kind of preparation of washing weld-aiding cream
Prepare 1- (3- aminopropyls) imidazoles abietate：1- (3- aminopropyls) imidazoles and acrylic acid modified rosin with mole
Than 1:1 ratio is dissolved in isopropanol, dry after neutralization reaction to form.
Composition of raw materials：It is shown in Table 1.The preparation method is the same as that of Example 1.
Embodiment 4：A kind of preparation of washing weld-aiding cream
Prepare 1- (3- aminopropyls) imidazoles abietate：1- (3- aminopropyls) imidazoles and maleic acid modified rosin with mole
Than 1:1 ratio is dissolved in isopropanol, dry after neutralization reaction to form.
Composition of raw materials：It is shown in Table 1.The preparation method is the same as that of Example 1.
Embodiment 5：A kind of preparation of washing weld-aiding cream
Prepare 1- (3- aminopropyls) imidazoles abietate：1- (3- aminopropyls) imidazoles and hydrogenated rosin are with molar ratio 1:1
Ratio be dissolved in isopropanol, after neutralization reaction drying form.
Composition of raw materials：It is shown in Table 1.The preparation method is the same as that of Example 1.
It prepares embodiment and washes solder(ing) paste：
Washing weld-aiding cream obtained by embodiment 1-5 is fully stirred with tinbase spherical solder powder under vacuum-pumping conditions respectively
Mixing is mixed, washing solder(ing) paste I, II, III, IV, V is obtained.The mixed proportion of two kinds of components is shown in Table 2：
Table 2 washes I, II, III, IV, V formula table (w/w%) of solder(ing) paste
Comparative example 1：A kind of preparation of weld-aiding cream
3 comparative example 1-4 weld-aiding creams formula table (w/w%) of table
Composition of raw materials is shown in Table 3.
Preparation method：
By 1- (3- aminopropyls) imidazoles hydrogenated rosins salt,PE 3100, polyethylene glycol 400 list oleic acid
Ester, rilanit special, 1,2,3- benzotriazoles are added in beaker, after being heated to clarification, mix slowly cooling；
1,2- ethylenediamines, two hydriodate mixing is added, three-roll grinder is used in combination to grind；
It is detected with Hegman grind gage, lotion fineness is less than 10 μm of weld-aiding creams that can obtain comparative example 1.
Comparative example 2：A kind of preparation of weld-aiding cream
Composition of raw materials：It is shown in Table 3.
Preparation method：
By hydrogenated rosin, newtrex,PE 3100, polyethylene glycol 400 monoleate, hydrogenated castor
Oil, 1,2,3- benzotriazoles are added in beaker, after being heated to clarification, mix slowly cooling；
Aerosil, the mixing of 1,2- ethylenediamines, two hydriodate is added, three-roll grinder is used in combination to grind；
It is detected with Hegman grind gage, lotion fineness is less than 10 μm of weld-aiding creams that can obtain comparative example 2.
Comparative example 3：A kind of preparation of weld-aiding cream
Composition of raw materials：It is shown in Table 3.
Preparation method：
Hydrogenated rosin, newtrex, diethylene glycol monohexyl ether, rilanit special are added in beaker, after being heated to clarification,
Mix slowly cooling；
Succinic acid, 2- ethyl imidazol(e)s, diphenylguanidine hydrobromate, 1,2,3- benzotriazoles are added, three-roll grinder is used in combination
Grinding；
It is detected with Hegman grind gage, lotion fineness is less than 10 μm of weld-aiding creams that can obtain comparative example 3.
Comparative example 4：A kind of preparation of weld-aiding cream
Composition of raw materials：It is shown in Table 3.
Preparation method：
By Macrogol 6000, polyethylene glycol-800,PE 3100, polyethylene glycol 400 monoleate, hydrogen
Change in castor oil, 1,2,3- benzotriazoles addition beaker, after being heated to clarification, mixes slowly cooling；
Aerosil, 1,2- ethylenediamines, two hydriodate is added, three-roll grinder is used in combination to grind；
It is detected with Hegman grind gage, lotion fineness is less than 10 μm of weld-aiding creams that can obtain comparative example 4.
Prepare comparative example solder(ing) paste：
Weld-aiding cream obtained by comparative example 1-4 is sufficiently stirred with tinbase spherical solder powder under vacuum-pumping conditions respectively mixed
It closes, obtains solder(ing) paste I ', II ', III ', IV '.The mixed proportion of two kinds of components is shown in Table 4：
4 solder(ing) paste of table, I ', II ', III ', IV ' formula table (w/w%)
Above-mentioned washing solder(ing) paste I, II, III, IV, V and solder(ing) paste I ', II ', III ', IV ' are tried in following manner
It tests：
1. heat resistanceheat resistant slump test
It is placed 24 hours after weld-aiding cream production and allocates solder(ing) paste after stabilization.The specification JIS of tin cream is defined with reference to Japanese industry
Test method is tested as defined in 3284 hot slumps of Z, 10-15 minutes under conditions of temperature is (180 ± 10) DEG C, is chosen
3.0mm X 0.7mm figures therein are for evaluating.
If bridging is not outstanding to the 0.2mm of spacing minimum, it is labeled as " A "；If 0.2mm bridgings and 0.3mm not bridging be it is good,
Labeled as " B "；If bridging is not good by 0.3mm bridgings and 0.4mm, it is labeled as " C "；Think if the larger 0.4mm bridgings of spacing
It is unqualified, it is labeled as " X ".
2. fine solder joint melts tin test
Solder(ing) paste is printed on using the steel mesh of 0.1mm thickness in copper-clad plate, printing shape be 0.15mm, 0.2mm,
The circular pattern of 0.25mm, 0.3mm diameter is positioned over reflux in hot air reflux brazier and melts and observed under 20 power microscopes.
If the 0.15mm of diameter minimum is completely melt to be outstanding, it is labeled as " A "；If diameter 0.15mm fusing not exclusively and
0.2mm is completely melt to be good, is labeled as " B "；If diameter 0.2mm fusings are incomplete and 0.25mm is completely melt to be good, it is labeled as
“C”；Think unqualified if >=0.25mm fusing not exclusively, is labeled as " X ".
3. water cleaning is tested
Copper-clad plate, which is placed in supersonic wave cleaning machine, after being welded according to test method 2 cleans, the steaming that cleaning agent is 50 ± 5 DEG C
Distilled water, scavenging period are 120 seconds, and it is secondary that the rinsing of distilled water similarity condition is replaced after cleaning.Cleaning is placed in hot air drier
It dries, sees whether to clean up under 20 power microscopes.
It does not find that postwelding residue is considered as to clean up, be labeled as " A "；It was found that have postwelding residue be considered as do not clean it is dry
Only, it is labeled as " X ".
Detailed test result is shown in Table 5.
Performance comparison test's table of 5 each weld-aiding cream of table
Test result analysis：
It can be seen that from performance comparison test's table of 5 each weld-aiding cream of table：
Comparative example 1 uses single thixotropic agent rilanit special, shows as the molten tin effect of relatively good fine solder joint and water is clear
Washing property, but heat resistanceheat resistant slump performance is very poor.
Comparative example 2 often uses hydrogenated rosin, newtrex using disposable tin cream, show fine solder joint preferably melt tin effect and
Heat resistanceheat resistant slump, but cleaning is very poor.
Comparative example 3 is printed circuit board solder(ing) paste commonly disposable formula, and the fine solder joint showed preferably melts tin effect and resists
Hot slump, but cleaning is very poor.
Comparative example 4 substitutes rosin using polyethylene glycol, and helpless weldering effect shows cleaning preferably and heat resistanceheat resistant slump, but
Fine solder joint melts tin poor effect.
1-5 of the embodiment of the present invention uses 1- (3- aminopropyls) imidazoles abietate, EO-PO-EO block copolymers, poly- second two
The materials such as alcohol oleate, aerosil, the comprehensive performance that prepared weld-aiding cream has had are prepared using the weld-aiding cream
Solder(ing) paste shows fine solder joint preferably and melts tin effect, heat resistanceheat resistant slump performance, and cleaning is good.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (11)
1. a kind of washing weld-aiding cream, which is characterized in that including following components in percentage by weight：
1- (3- aminopropyls) imidazoles abietates 40-50%
EO-PO-EO block copolymers 15-30%
Polyethylene glycol (PEG) oleate 13-25%
Halogen activator 5-8%
Aerosil 0.2-2%
Rilanit special 0.2-2%
Corrosion inhibiter 0.05-2%；
The structural formula of the EO-PO-EO block copolymers isThe halogen
Activator is the organic amine salt of hydroiodic acid.
2. a kind of washing weld-aiding cream according to claim 1, which is characterized in that the EO-PO-EO block copolymers are
One kind in BASF AG's Pluronic PE series.
3. a kind of washing weld-aiding cream according to claim 1, which is characterized in that including following components in percentage by weight：
1- (3- aminopropyls) imidazoles abietates 45-50%
EO-PO-EO block copolymers 22.8-26%
Polyethylene glycol (PEG) oleate 13-20%
Halogen activator 5-8%
Aerosil 0.2-2%
Rilanit special 0.2-2%
Corrosion inhibiter 0.05-2%；
The EO-PO-EO block copolymers are one kind in BASF AG's Pluronic PE series.
4. a kind of washing weld-aiding cream according to claim 1, which is characterized in that 1- (3- aminopropyls) the imidazoles rosin
Salt is by 1- (3- aminopropyls) imidazoles and rosin with molar ratio 1:1 ratio is dissolved in isopropanol, dry after neutralization reaction
Made of.
5. a kind of washing weld-aiding cream according to claim 4, which is characterized in that the rosin is hydrogenated rosin, maleic acid
One kind in modified rosin, acrylic acid modified rosin.
6. a kind of washing weld-aiding cream according to claim 1, which is characterized in that the polyethylene glycol (PEG) oleate is poly- second two
200 monoleate of alcohol, polyethylene glycol 400 monoleate, polyethylene glycol 400 dioleic acid ester, gathers polyethylene glycol 200 dioleic acid ester
One or more of 600 monoleate of ethylene glycol, Macrogol 600 dioleic acid ester.
7. a kind of washing weld-aiding cream according to claim 1, which is characterized in that the halogen active agent is 1,2- ethylenediamines
One kind in two hydriodates, 1,2- dimethyl -2- isothioureas hydriodate, N- amino-N- amyl guanidine hydriodates.
8. a kind of washing weld-aiding cream according to claim 1, which is characterized in that the aerosil is hydrophobicity gas
Aerosil.
9. a kind of washing weld-aiding cream according to claim 8, which is characterized in that the aerosil is a watt gram model
In N20, Degussa model AEROSIL 380, Degussa model A200, moral mountain model REOLOSIL QS40, Cabot M-5
It is a kind of.
10. a kind of washing weld-aiding cream according to claim 1, which is characterized in that the corrosion inhibiter is 1,2,3- benzene a pair of horses going side by sides three
One kind in nitrogen azoles, benzimidazole, methylbenzotriazole.
11. a kind of washing solder(ing) paste, which is characterized in that contain following component：Any washings of claim 1-10 help weldering
Cream, tinbase spherical solder powder.
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| JP6617793B2 (en) * | 2018-06-01 | 2019-12-11 | 千住金属工業株式会社 | Solder paste flux and solder paste |
| JP6795777B1 (en) | 2020-03-27 | 2020-12-02 | 千住金属工業株式会社 | Flux for cleaning and solder paste for cleaning |
| CN114289932B (en) * | 2022-01-24 | 2023-02-24 | 云南锡业锡材有限公司 | Halogen-free cleaning-free lead-free soldering tin wire soldering flux and preparation method thereof |
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| CN101818378A (en) * | 2010-04-26 | 2010-09-01 | 江苏林洋新能源有限公司 | Velvet manufacturing solution of monocrystalline silicon additive |
| CN102161135A (en) * | 2011-03-30 | 2011-08-24 | 浙江强力焊锡材料有限公司 | Lead-free welding tin wire and water-soluble welding flux used by same |
| CN103422175A (en) * | 2013-08-30 | 2013-12-04 | 昊诚光电（太仓）有限公司 | Polishing method for solar cell silicon wafer |
| CN103909358A (en) * | 2014-03-13 | 2014-07-09 | 江苏科技大学 | Water-washing type solder paste and preparation method thereof |
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| JPWO2005054382A1 (en) * | 2003-12-08 | 2007-06-28 | ソニー株式会社 | RECORDING LIQUID, LIQUID CARTRIDGE, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARGE METHOD |
| US20070199976A1 (en) * | 2006-02-27 | 2007-08-30 | Mao-Yao Huang | Process of forming a polyol |
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| CN101818378A (en) * | 2010-04-26 | 2010-09-01 | 江苏林洋新能源有限公司 | Velvet manufacturing solution of monocrystalline silicon additive |
| CN102161135A (en) * | 2011-03-30 | 2011-08-24 | 浙江强力焊锡材料有限公司 | Lead-free welding tin wire and water-soluble welding flux used by same |
| CN103422175A (en) * | 2013-08-30 | 2013-12-04 | 昊诚光电（太仓）有限公司 | Polishing method for solar cell silicon wafer |
| CN103909358A (en) * | 2014-03-13 | 2014-07-09 | 江苏科技大学 | Water-washing type solder paste and preparation method thereof |
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