CN118186516A - High-elongation low-profile electrolytic copper foil additive and application thereof - Google Patents
High-elongation low-profile electrolytic copper foil additive and application thereof Download PDFInfo
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- CN118186516A CN118186516A CN202410586043.6A CN202410586043A CN118186516A CN 118186516 A CN118186516 A CN 118186516A CN 202410586043 A CN202410586043 A CN 202410586043A CN 118186516 A CN118186516 A CN 118186516A
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000011889 copper foil Substances 0.000 title claims abstract description 56
- 239000000654 additive Substances 0.000 title claims abstract description 42
- 230000000996 additive effect Effects 0.000 title claims abstract description 41
- 230000002195 synergetic effect Effects 0.000 claims abstract description 40
- 239000012747 synergistic agent Substances 0.000 claims abstract description 25
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 18
- 239000011734 sodium Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 102000008186 Collagen Human genes 0.000 claims abstract description 12
- 108010035532 Collagen Proteins 0.000 claims abstract description 12
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 108010010803 Gelatin Proteins 0.000 claims abstract description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 12
- 229920001436 collagen Polymers 0.000 claims abstract description 12
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims abstract description 12
- 229920000159 gelatin Polymers 0.000 claims abstract description 12
- 239000008273 gelatin Substances 0.000 claims abstract description 12
- 235000019322 gelatine Nutrition 0.000 claims abstract description 12
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 12
- -1 polydithio-dipropyl sodium Polymers 0.000 claims abstract description 12
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 12
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 12
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 10
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 10
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 10
- 238000000498 ball milling Methods 0.000 claims description 92
- 238000011282 treatment Methods 0.000 claims description 69
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 66
- 229910021389 graphene Inorganic materials 0.000 claims description 66
- 239000000243 solution Substances 0.000 claims description 65
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 64
- 239000007788 liquid Substances 0.000 claims description 57
- 238000002156 mixing Methods 0.000 claims description 53
- 238000002360 preparation method Methods 0.000 claims description 45
- 238000001035 drying Methods 0.000 claims description 30
- 235000012239 silicon dioxide Nutrition 0.000 claims description 29
- 239000005543 nano-size silicon particle Substances 0.000 claims description 25
- 238000005406 washing Methods 0.000 claims description 24
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 22
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 21
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 239000000661 sodium alginate Substances 0.000 claims description 19
- 235000010413 sodium alginate Nutrition 0.000 claims description 19
- 229940005550 sodium alginate Drugs 0.000 claims description 19
- 239000003607 modifier Substances 0.000 claims description 18
- 238000012986 modification Methods 0.000 claims description 17
- 229910052727 yttrium Inorganic materials 0.000 claims description 16
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 16
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 15
- 230000004048 modification Effects 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 14
- 239000003674 animal food additive Substances 0.000 claims description 13
- 239000000440 bentonite Substances 0.000 claims description 12
- 229910000278 bentonite Inorganic materials 0.000 claims description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- CTENFNNZBMHDDG-UHFFFAOYSA-N Dopamine hydrochloride Chemical compound Cl.NCCC1=CC=C(O)C(O)=C1 CTENFNNZBMHDDG-UHFFFAOYSA-N 0.000 claims description 10
- 229960001149 dopamine hydrochloride Drugs 0.000 claims description 10
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 9
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 9
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 9
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 9
- 229920001661 Chitosan Polymers 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 239000007853 buffer solution Substances 0.000 claims description 7
- 239000012286 potassium permanganate Substances 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000008055 phosphate buffer solution Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- 230000002844 continuous effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 239000000047 product Substances 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000012527 feed solution Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention relates to the technical field of electrolytic copper foil, and in particular discloses a high-elongation low-profile electrolytic copper foil additive and application thereof, wherein the additive comprises the following raw materials in parts by weight: 8-12 parts of polydithio-dipropyl sodium sulfonate, 7-10 parts of gelatin, 6-9 parts of polyethylene glycol, 4-7 parts of collagen, 5-8 parts of dodecyl diethanolamide, 2-5 parts of hydroxyethyl cellulose and 2-5 parts of sodium phthaloyl sulfimide. The high-elongation low-profile electrolytic copper foil additive adopts the raw materials of sodium polydithio-dipropyl sulfonate, gelatin, polyethylene glycol, collagen, dodecyl diethanolamide and the like to match, and the graphene-modified continuous synergistic agent and the yttrium-modified synergistic agent are added to realize the synergistic effect, so that the high-elongation, low-profile and stripping performance of the product can be improved in a coordinated manner, and in addition, the performance stability effect of the product is obvious in a high-temperature and humid environment.
Description
Technical Field
The invention relates to the technical field of electrolytic copper foil, in particular to a high-elongation low-profile electrolytic copper foil additive and application thereof.
Background
The electrolytic copper foil is widely applied to the high and new technical fields of chip packaging, copper foil clad laminates, printed circuit boards, advanced automobile driving auxiliary systems, internet data centers and the like, is called a 'neural network' for signal transmission and communication of electronic products, and is a key base material of products such as packaging substrates, PCBs, lithium battery current collectors and the like. With the rapid development of the fields of 5G communication technology, internet of things and Internet technology, cloud storage and cloud computing, electronic products are increasingly miniaturized, light-weighted, thinned, intelligent and multifunctional, and more stringent requirements are put forward on the comprehensive performance of electrolytic copper foil. For example: for the chip packaging copper foil, the integrity and reliability of signal transmission in a high-frequency high-speed circuit are required to be ensured, and lower signal transmission loss is realized. And the signal is gathered on the surface layer of the copper foil in the transmission process of the high-frequency high-speed circuit, the extra current generated in the central position of the copper foil counteracts the original current, and the current on the surface of the copper foil is larger than the internal current, so that the current approaches to the surface of the conductor for transmission, and the so-called skin effect can increase the signal loss.
In order to reduce adverse effects of skin effect on signal transmission integrity and reliability, it is required that the copper foil has a low surface profile, and for electrolytic copper foil for printed wiring boards, it is often necessary to process at high temperature and high pressure, and the copper foil and the base material have different thermal expansion coefficients, and if the copper foil has poor high-temperature elongation properties, peeling due to internal stress or cracking of the copper foil occurs under heating, and thus the use stability is difficult to ensure.
Based on the above, the technical difficulty of the invention is that the high extensibility, the low profile and the stripping performance are coordinated to improve the service efficiency of the product, in addition, the product has obviously poor performance in a high-temperature and humid environment, and the service efficiency of the product is further limited.
Disclosure of Invention
In view of the drawbacks of the prior art, an object of the present invention is to provide a high-elongation low-profile electrolytic copper foil additive and application thereof, so as to solve the problems set forth in the background art.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a high-elongation low-profile electrolytic copper foil additive which comprises the following raw materials in parts by weight:
8-12 parts of polydithio-dipropyl sodium sulfonate, 7-10 parts of gelatin, 6-9 parts of polyethylene glycol, 4-7 parts of collagen, 5-8 parts of dodecyl diethanolamide, 2-5 parts of hydroxyethyl cellulose and 2-5 parts of sodium phthaloyl sulfimide; the electrolytic copper foil additive also comprises 7-11 parts of continuous effect-regulating feed additive based on graphene modification and 4-7 parts of yttrium modified synergistic agent.
Preferably, the electrolytic copper foil additive further comprises the following raw materials in parts by weight:
10 parts of sodium polydithio-dipropyl sulfonate, 8.5 parts of gelatin, 7.5 parts of polyethylene glycol, 5.5 parts of collagen, 6.5 parts of dodecyl diethanolamide, 3.5 parts of hydroxyethyl cellulose and 3.5 parts of sodium phthalylsulfonimide; the electrolytic copper foil additive also comprises 8.5 parts of continuous effect additive based on graphene modification and 5.5 parts of yttrium modified synergistic agent.
Preferably, the preparation method of the graphene-modification-based continuous efficacy-regulating feed additive comprises the following steps:
S01: placing graphene into a sufficient amount of potassium permanganate solution with the mass fraction of 10%, stirring uniformly, and then washing, filtering and drying; carrying out heat improvement treatment on the dried graphene to obtain a heat-improved graphene body;
S02: preparation of graphene modified continuous feed:
S021: immersing sodium alginate into a sufficient amount of sodium silicate solution with the mass fraction of 10%, performing ultrasonic improvement treatment, performing ultrasonic treatment, performing suction filtration, and drying;
S022: uniformly mixing sodium alginate of S021 and sodium lignin sulfonate solution with the total amount of 2-5 times of the total amount of the sodium alginate of S021 to obtain continuous feed liquor;
s023: mixing the graphene body with the continuous feed liquid according to the weight ratio of 2:5, performing primary ball milling treatment, and after ball milling, washing and drying to obtain a graphene modified continuous feed agent;
S03: preparing 5% lanthanum chloride solution by mass, adding 2-5 parts of lanthanum chloride solution and 1-3 parts of carboxymethyl cellulose into 4-7 parts of phosphoric acid buffer solution, and fully blending to obtain an effective connection regulator;
mixing the continuous modifier and the graphene modified continuous modifier according to a weight ratio of 3:5, performing secondary ball milling treatment, and washing and drying after ball milling is finished to obtain the graphene modified continuous modifier.
Preferably, the pH of the phosphate buffer solution is 5.5; the mass fraction of the sodium lignin sulfonate solution is 10-12%;
The ball milling rotating speed of the mixed primary ball milling treatment is 750-850 r/min, and the ball milling is carried out for 1h; the ball milling rotating speed of the mixing secondary ball milling treatment is 550-650 r/min, and the ball milling is carried out for 2 hours.
Preferably, the heat improvement treatment is firstly to heat up to 170-180 ℃ at a speed of 1-3 ℃/min, heat preservation is carried out for 5-10 min, then to heat up to 250-260 ℃ at a speed of 2-5 ℃/min, heat preservation is carried out for 2-5 min, and finally air cooling is carried out to room temperature.
Preferably, the ultrasonic power of the ultrasonic improvement treatment is 350-400W, and the ultrasonic time is 10min.
Preferably, the preparation method of the yttrium-modified synergist comprises the following steps:
s101: firstly, placing yttrium oxide in a proton irradiation box for irradiation for 5-10 min, wherein the irradiation power is 350W, and obtaining an irradiated yttrium oxide agent;
S102: blending 4-6 parts of irradiated yttrium oxide agent and 6-10 parts of synergistic liquid for ball milling treatment, and after ball milling, washing and drying to obtain an yttrium improved synergistic agent; wherein the ball milling rotating speed of the blending ball milling treatment is 1200-1500 r/min, and the ball milling is carried out for 1-2 h.
Preferably, the preparation method of the synergistic liquid comprises the following steps:
uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 1 to 2 parts of dopamine hydrochloride, 4 to 7 parts of nano silicon dioxide liquid, 2 to 3 parts of nano bentonite powder and 0.25 to 0.35 part of silane coupling agent are fully mixed to obtain a synergistic liquid.
Preferably, the silane coupling agent is a silane coupling agent KH560.
The invention also provides application of the high-elongation low-profile electrolytic copper foil additive in preparation of electrolytic copper foil.
Compared with the prior art, the invention has the following beneficial effects:
1. The high-elongation low-profile electrolytic copper foil additive adopts the raw materials of sodium polydithio-dipropyl sulfonate, gelatin, polyethylene glycol, collagen, dodecyl diethanolamide and the like to match, and the graphene-modified continuous synergistic agent and yttrium-modified synergistic agent are added to realize synergistic effect, so that the high-elongation, low-profile and stripping performance of the product can be improved in a coordinated manner, and in addition, the performance stability effect of the product is obvious in a high-temperature and humid environment;
2. The continuous efficiency-adjusting feed additive based on graphene modification is prepared by treating graphene with potassium permanganate solution, heating to 170-180 ℃ at a speed of 1-3 ℃/min, preserving heat for 5-10 min, heating to 250-260 ℃ at a speed of 2-5 ℃/min, preserving heat for 2-5 min, and finally performing air cooling to room temperature for continuous heat improvement treatment, so that the activity dispersity of the continuous efficiency-adjusting feed additive is optimized, the interfacial effect of the graphene in a product raw material is enhanced, sodium alginate is immersed into a sufficient sodium silicate solution with a mass fraction of 10% for ultrasonic improvement treatment, and then mixed with sodium lignin sulfonate solution to be fully mixed to obtain continuous feed liquor, the continuous feed liquor is adopted to coordinate graphene to perform ball milling improvement, the continuous feed liquor, carboxymethyl cellulose and phosphoric acid buffer solution are mixed to fully obtain further coordinate improvement graphene, the coordinate coordination effect between raw materials is used to enhance the effect of the continuous efficiency-adjusting feed additive based on graphene modification, and the product is improved, and the high-extension and low-profile coordinated performance of the product is optimized;
3. The yttrium improved synergist adopts yttrium oxide to optimize the activity efficacy through proton irradiation, and then the yttrium oxide and the synergistic liquid are subjected to blending ball milling treatment, so that the synergistic effect of the yttrium improved synergist and the graphene-modified continuous synergistic agent is further enhanced, the performance of the product is further improved in a coordinated manner, and the high-temperature resistance and moisture resistance stability effects of the product are obvious;
4. The nanometer silicon dioxide is matched with chitosan solution with the mass fraction of 5% to obtain nanometer silicon dioxide solution, dopamine hydrochloride, nanometer silicon dioxide solution, nanometer bentonite powder and silane coupling agent are adopted to blend to obtain synergistic solution, nanometer bentonite is used for coordinating nanometer silicon dioxide, the raw materials in the synergistic solution are mutually coordinated and cooperated, so that the synergistic solution better coordinates the irradiated yttrium oxide agent, and the performance of the product is further improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The high-elongation low-profile electrolytic copper foil additive comprises the following raw materials in parts by weight:
8-12 parts of polydithio-dipropyl sodium sulfonate, 7-10 parts of gelatin, 6-9 parts of polyethylene glycol, 4-7 parts of collagen, 5-8 parts of dodecyl diethanolamide, 2-5 parts of hydroxyethyl cellulose and 2-5 parts of sodium phthaloyl sulfimide.
The electrolytic copper foil additive of the embodiment also comprises the following raw materials in parts by weight:
10 parts of sodium polydithio-dipropyl sulfonate, 8.5 parts of gelatin, 7.5 parts of polyethylene glycol, 5.5 parts of collagen, 6.5 parts of dodecyl diethanolamide, 3.5 parts of hydroxyethyl cellulose and 3.5 parts of sodium phthaloyl sulfimide.
The electrolytic copper foil additive of the embodiment also comprises 7-11 parts of continuous synergistic agent based on graphene modification and 4-7 parts of yttrium improved synergistic agent;
the preparation method of the graphene-modified continuous efficacy-regulating feed additive comprises the following steps:
S01: placing graphene into a sufficient amount of potassium permanganate solution with the mass fraction of 10%, stirring uniformly, and then washing, filtering and drying; carrying out heat improvement treatment on the dried graphene to obtain a heat-improved graphene body;
S02: preparation of graphene modified continuous feed:
S021: immersing sodium alginate into a sufficient amount of sodium silicate solution with the mass fraction of 10%, performing ultrasonic improvement treatment, performing ultrasonic treatment, performing suction filtration, and drying;
S022: uniformly mixing sodium alginate of S021 and sodium lignin sulfonate solution with the total amount of 2-5 times of the total amount of the sodium alginate of S021 to obtain continuous feed liquor;
s023: mixing the graphene body with the continuous feed liquid according to the weight ratio of 2:5, performing primary ball milling treatment, and after ball milling, washing and drying to obtain a graphene modified continuous feed agent;
S03: preparing 5% lanthanum chloride solution by mass, adding 2-5 parts of lanthanum chloride solution and 1-3 parts of carboxymethyl cellulose into 4-7 parts of phosphoric acid buffer solution, and fully blending to obtain an effective connection regulator;
mixing the continuous modifier and the graphene modified continuous modifier according to a weight ratio of 3:5, performing secondary ball milling treatment, and washing and drying after ball milling is finished to obtain the graphene modified continuous modifier.
The pH of the phosphate buffer solution of this example was 5.5; the mass fraction of the sodium lignin sulfonate solution is 10-12%;
The ball milling rotating speed of the mixed primary ball milling treatment is 750-850 r/min, and the ball milling is carried out for 1h; the ball milling rotating speed of the mixing secondary ball milling treatment is 550-650 r/min, and the ball milling is carried out for 2 hours.
The heat improvement treatment of this embodiment is to heat up to 170-180 ℃ at a rate of 1-3 ℃/min, keep the temperature for 5-10 min, then heat up to 250-260 ℃ at a rate of 2-5 ℃/min, keep the temperature for 2-5 min, and finally cool down to room temperature.
The ultrasonic power of the ultrasonic improvement treatment of the embodiment is 350-400W, and the ultrasonic time is 10min.
The preparation method of the yttrium-modified synergist of the embodiment comprises the following steps:
s101: firstly, placing yttrium oxide in a proton irradiation box for irradiation for 5-10 min, wherein the irradiation power is 350W, and obtaining an irradiated yttrium oxide agent;
S102: blending 4-6 parts of irradiated yttrium oxide agent and 6-10 parts of synergistic liquid for ball milling treatment, and after ball milling, washing and drying to obtain an yttrium improved synergistic agent; wherein the ball milling rotating speed of the blending ball milling treatment is 1200-1500 r/min, and the ball milling is carried out for 1-2 h.
The preparation method of the synergistic liquid of the embodiment comprises the following steps:
uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 1 to 2 parts of dopamine hydrochloride, 4 to 7 parts of nano silicon dioxide liquid, 2 to 3 parts of nano bentonite powder and 0.25 to 0.35 part of silane coupling agent are fully mixed to obtain a synergistic liquid.
The silane coupling agent of this example is a silane coupling agent KH560.
The application of the high-elongation low-profile electrolytic copper foil additive in the preparation of the electrolytic copper foil is provided.
Example 1
The high-elongation low-profile electrolytic copper foil additive comprises the following raw materials in parts by weight:
8 parts of sodium polydithio-dipropyl sulfonate, 7 parts of gelatin, 6 parts of polyethylene glycol, 4 parts of collagen, 5 parts of dodecyl diethanolamide, 2 parts of hydroxyethyl cellulose and 2 parts of sodium o-benzoyl sulfonyl imide.
The electrolytic copper foil additive of the embodiment also comprises 7 parts of continuous efficiency-regulating feed additive based on graphene modification and 4 parts of yttrium-modified synergistic agent;
the preparation method of the graphene-modified continuous efficacy-regulating feed additive comprises the following steps:
S01: placing graphene into a sufficient amount of potassium permanganate solution with the mass fraction of 10%, stirring uniformly, and then washing, filtering and drying; carrying out heat improvement treatment on the dried graphene to obtain a heat-improved graphene body;
S02: preparation of graphene modified continuous feed:
S021: immersing sodium alginate into a sufficient amount of sodium silicate solution with the mass fraction of 10%, performing ultrasonic improvement treatment, performing ultrasonic treatment, performing suction filtration, and drying;
s022: uniformly mixing sodium alginate of S021 and sodium lignin sulfonate solution with the total amount of the sodium alginate of S021 being 2 times, and obtaining continuous feed liquid;
s023: mixing the graphene body with the continuous feed liquid according to the weight ratio of 2:5, performing primary ball milling treatment, and after ball milling, washing and drying to obtain a graphene modified continuous feed agent;
S03: preparing a lanthanum chloride solution with the mass fraction of 5%, adding 2 parts of lanthanum chloride solution and 1 part of carboxymethyl cellulose into 4 parts of phosphoric acid buffer solution, and fully blending to obtain an effective connection regulator;
mixing the continuous modifier and the graphene modified continuous modifier according to a weight ratio of 3:5, performing secondary ball milling treatment, and washing and drying after ball milling is finished to obtain the graphene modified continuous modifier.
The pH of the phosphate buffer solution of this example was 5.5; the mass fraction of the sodium lignin sulfonate solution is 10%;
The ball milling rotating speed of the mixing primary ball milling treatment is 750r/min, and the ball milling is carried out for 1h; the ball milling rotating speed of the mixing secondary ball milling treatment is 550r/min, and the ball milling is carried out for 2 hours.
The heat treatment of this example was first raised to 170℃at a rate of 1℃per minute, incubated for 5 minutes, then raised to 250℃at a rate of 2℃per minute, incubated for 2 minutes, and finally air-cooled to room temperature.
The ultrasonic power of the ultrasonic improvement treatment of this example was 350W and the ultrasonic time was 10min.
The preparation method of the yttrium-modified synergist of the embodiment comprises the following steps:
S101: firstly, placing yttrium oxide in a proton irradiation box for irradiation for 5min, wherein the irradiation power is 350W, so as to obtain an irradiated yttrium oxide agent;
S102: blending 4 parts of irradiated yttrium oxide agent and 6 parts of synergistic liquid for ball milling treatment, and after ball milling, washing and drying to obtain an yttrium improved synergistic agent; wherein the ball milling rotating speed of the blending ball milling treatment is 1200/min, and the ball milling is carried out for 1h.
The preparation method of the synergistic liquid of the embodiment comprises the following steps:
Uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 1 part of dopamine hydrochloride, 4 parts of nano silicon dioxide liquid, 2 parts of nano bentonite powder and 0.25 part of silane coupling agent are mixed to fully obtain a synergistic liquid.
The silane coupling agent of this example is a silane coupling agent KH560.
The application of the high-elongation low-profile electrolytic copper foil additive in the preparation of the electrolytic copper foil is provided.
Example 2
The high-elongation low-profile electrolytic copper foil additive comprises the following raw materials in parts by weight:
12 parts of sodium polydithio-dipropyl sulfonate, 10 parts of gelatin, 9 parts of polyethylene glycol, 7 parts of collagen, 8 parts of dodecyl diethanolamide, 5 parts of hydroxyethyl cellulose and 5 parts of sodium o-benzoyl sulfonyl imide.
The electrolytic copper foil additive of the embodiment also comprises 11 parts of continuous efficiency-regulating feed additive based on graphene modification and 7 parts of yttrium-modified synergistic agent;
the preparation method of the graphene-modified continuous efficacy-regulating feed additive comprises the following steps:
S01: placing graphene into a sufficient amount of potassium permanganate solution with the mass fraction of 10%, stirring uniformly, and then washing, filtering and drying; carrying out heat improvement treatment on the dried graphene to obtain a heat-improved graphene body;
S02: preparation of graphene modified continuous feed:
S021: immersing sodium alginate into a sufficient amount of sodium silicate solution with the mass fraction of 10%, performing ultrasonic improvement treatment, performing ultrasonic treatment, performing suction filtration, and drying;
S022: uniformly mixing sodium alginate of S021 and sodium lignin sulfonate solution which is 5 times of the total amount of the sodium alginate of S021 to obtain continuous feed liquid;
s023: mixing the graphene body with the continuous feed liquid according to the weight ratio of 2:5, performing primary ball milling treatment, and after ball milling, washing and drying to obtain a graphene modified continuous feed agent;
S03: preparing 5% lanthanum chloride solution by mass, adding 5 parts of lanthanum chloride solution and 3 parts of carboxymethyl cellulose into 7 parts of phosphoric acid buffer solution, and fully blending to obtain an effective connection regulator;
mixing the continuous modifier and the graphene modified continuous modifier according to a weight ratio of 3:5, performing secondary ball milling treatment, and washing and drying after ball milling is finished to obtain the graphene modified continuous modifier.
The pH of the phosphate buffer solution of this example was 5.5; the mass fraction of the sodium lignin sulfonate solution is 12%;
The ball milling rotating speed of the mixing primary ball milling treatment is 850r/min, and the ball milling is carried out for 1h; the ball milling rotating speed of the mixing secondary ball milling treatment is 650r/min, and the ball milling is carried out for 2 hours.
The heat treatment of this example was first raised to 180℃at a rate of 3℃per minute, incubated for 10 minutes, then raised to 260℃at a rate of 5℃per minute, incubated for 5 minutes, and finally air-cooled to room temperature.
The ultrasonic power of the ultrasonic improvement treatment of this example was 400W and the ultrasonic time was 10min.
The preparation method of the yttrium-modified synergist of the embodiment comprises the following steps:
S101: firstly, placing yttrium oxide in a proton irradiation box for irradiation for 10min, wherein the irradiation power is 350W, and obtaining an irradiated yttrium oxide agent;
s102: blending 6 parts of irradiated yttrium oxide agent and 10 parts of synergistic liquid for ball milling treatment, and after ball milling, washing and drying to obtain an yttrium improved synergistic agent; wherein the ball milling rotating speed of the blending ball milling treatment is 1500r/min, and the ball milling is carried out for 2 hours.
The preparation method of the synergistic liquid of the embodiment comprises the following steps:
Uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 2 parts of dopamine hydrochloride, 7 parts of nano silicon dioxide liquid, 3 parts of nano bentonite powder and 0.35 part of silane coupling agent are mixed to fully obtain a synergistic liquid.
The silane coupling agent of this example is a silane coupling agent KH560.
The application of the high-elongation low-profile electrolytic copper foil additive in the preparation of the electrolytic copper foil is provided.
Example 3
The high-elongation low-profile electrolytic copper foil additive comprises the following raw materials in parts by weight:
10 parts of sodium polydithio-dipropyl sulfonate, 8.5 parts of gelatin, 7.5 parts of polyethylene glycol, 5.5 parts of collagen, 6.5 parts of dodecyl diethanolamide, 3.5 parts of hydroxyethyl cellulose and 3.5 parts of sodium phthaloyl sulfimide.
The electrolytic copper foil additive of the embodiment also comprises 9 parts of continuous efficiency-regulating feed additive based on graphene modification and 5.5 parts of yttrium-modified synergist;
the preparation method of the graphene-modified continuous efficacy-regulating feed additive comprises the following steps:
S01: placing graphene into a sufficient amount of potassium permanganate solution with the mass fraction of 10%, stirring uniformly, and then washing, filtering and drying; carrying out heat improvement treatment on the dried graphene to obtain a heat-improved graphene body;
S02: preparation of graphene modified continuous feed:
S021: immersing sodium alginate into a sufficient amount of sodium silicate solution with the mass fraction of 10%, performing ultrasonic improvement treatment, performing ultrasonic treatment, performing suction filtration, and drying;
s022: uniformly mixing sodium alginate of S021 and sodium lignin sulfonate solution with the total amount of 3.5 times of the total amount of the sodium alginate of S021 to obtain continuous feed liquid;
s023: mixing the graphene body with the continuous feed liquid according to the weight ratio of 2:5, performing primary ball milling treatment, and after ball milling, washing and drying to obtain a graphene modified continuous feed agent;
S03: preparing a lanthanum chloride solution with the mass fraction of 5%, adding 3.5 parts of lanthanum chloride solution and 2 parts of carboxymethyl cellulose into 5.5 parts of phosphoric acid buffer solution, and fully blending to obtain an effective continuous regulator;
mixing the continuous modifier and the graphene modified continuous modifier according to a weight ratio of 3:5, performing secondary ball milling treatment, and washing and drying after ball milling is finished to obtain the graphene modified continuous modifier.
The pH of the phosphate buffer solution of this example was 5.5; the mass fraction of the sodium lignin sulfonate solution is 11%;
the ball milling rotating speed of the mixing primary ball milling treatment is 800r/min, and the ball milling is carried out for 1h; the ball milling rotating speed of the mixing secondary ball milling treatment is 600r/min, and the ball milling is carried out for 2 hours.
The heat treatment of this example was first raised to 175℃at a rate of 2℃per minute, incubated for 7.5 minutes, then raised to 255℃at a rate of 3.5℃per minute, incubated for 3.5 minutes, and finally air-cooled to room temperature.
The ultrasonic power of the ultrasonic improvement treatment of this example was 370W and the ultrasonic time was 10min.
The preparation method of the yttrium-modified synergist of the embodiment comprises the following steps:
s101: firstly, placing yttrium oxide in a proton irradiation box for irradiation for 7.5min, wherein the irradiation power is 350W, and obtaining an irradiated yttrium oxide agent;
S102: 5 parts of irradiated yttrium oxide and 8 parts of synergistic liquid are subjected to blending ball milling treatment, and after ball milling is finished, washing and drying are carried out, so that the yttrium improved synergistic agent is obtained; wherein the ball milling rotating speed of the blending ball milling treatment is 1350r/min, and the ball milling is carried out for 1.5h.
The preparation method of the synergistic liquid of the embodiment comprises the following steps:
Uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 1.5 parts of dopamine hydrochloride, 5.5 parts of nano silicon dioxide liquid, 2.5 parts of nano bentonite powder and 0.30 part of silane coupling agent are fully mixed to obtain a synergistic liquid.
The silane coupling agent of this example is a silane coupling agent KH560.
The application of the high-elongation low-profile electrolytic copper foil additive in the preparation of the electrolytic copper foil is provided.
Comparative example 1
The difference from example 3 is that no continuous efficacy-improving agent based on graphene modification was added.
Comparative example 2
Unlike example 3, no thermal modification treatment was used in the preparation of the graphene-modified continuous efficacy additive.
Comparative example 3
Unlike example 3, no continuous feed liquid treatment was used in the preparation of the graphene-modified continuous efficacy additive.
Comparative example 4
The difference from example 3 is that the continuous feed solution is replaced by 11% by mass of sodium lignin sulfonate solution.
Comparative example 5
Unlike example 3, the graphene-modification-based continuous modulator was not used for the preparation of the continuous modulator.
Comparative example 6
The difference from example 3 is that no lanthanum chloride solution or carboxymethyl cellulose is added to the effective connection regulator.
Comparative example 7
The difference from example 3 is that no yttrium-modified synergist was added.
Comparative example 8
The difference from example 3 is that no synergistic liquid treatment was used in the preparation of the yttrium-modified synergist.
Electrolyte solution: the copper content is controlled at 88g/L, the sulfuric acid content is controlled at 135g/L, the chloride ion content is controlled at 15ppm, the temperature of the liquid on a foil forming machine is controlled at 55 ℃, additives are added into electrolyte in electrolysis, the addition amount is 50mL/min, a semi-finished product foil is obtained through conventional electrochemical reaction, and the foil is subjected to a series of surface treatment processes such as roughening, curing, ashing, passivation, coupling agent coating and the like to obtain a finished copper foil with the thickness of 10 um;
The performance of the products of examples 1 to 3 and comparative examples 1 to 8 was tested, the products were placed at 60℃for 12 hours, then transferred to a humidity condition of 40% for 12 hours, and repeatedly tested 5 times, and then a copper foil of 10um thickness was formed according to the above electrochemical treatment, and the high temperature resistance, moisture resistance stability and performance measurement results of the products were as follows:
from examples 1 to 3 and comparative examples 1 to 8,
The product of the embodiment 3 of the invention has excellent extensibility, peeling strength and rough surface roughness under the conventional condition, can realize coordinated improvement of the product performance, and has excellent performance stability under the high-temperature and humid conditions;
According to the invention, one of a continuous synergistic agent based on graphene modification and a synergistic agent improved by yttrium is not added, the performance of the product is obviously deteriorated, the product is synergistic by adopting the two synergistic agents, the performance effect of the product is most obvious, and meanwhile, the stability of the product under high-temperature and humid conditions is obviously deteriorated without adding the synergistic agent improved by yttrium;
The preparation of the continuous effect additive based on graphene modification does not adopt heat improvement treatment, the preparation of the continuous effect additive based on graphene modification does not adopt continuous liquid treatment, continuous liquid adopts sodium lignin sulfonate solution with the mass fraction of 11% to replace, the continuous liquid is not treated by the continuous regulator, the continuous regulator is not added with lanthanum chloride solution and carboxymethyl cellulose, the product performance tends to be poor, the continuous regulator, the continuous liquid treatment and the matched heat improvement treatment obtained by adopting the specific method of the invention have the most obvious performance effect, the replacement by adopting other methods is less obvious than the effect of the invention, and the preparation of the yttrium-modified synergistic agent does not adopt synergistic liquid treatment, so the performance of the product is poor.
Based on the fact that the performance of the synergistic liquid on the product is greatly changed, further research is conducted on the method:
the preparation method of the synergistic liquid comprises the following steps:
Uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 1.5 parts of dopamine hydrochloride, 5.5 parts of nano silicon dioxide liquid, 2.5 parts of nano bentonite powder and 0.30 part of silane coupling agent are fully mixed to obtain a synergistic liquid.
Experimental example 1
The only difference from example 3 is that dopamine hydrochloride was not added in the preparation of the synergistic liquid.
Experimental example 2
The only difference from example 3 is that no nano bentonite powder is added in the preparation of the synergistic liquid.
Experimental example 3
The only difference from example 3 is that no silane coupling agent was added in the preparation of the synergistic liquid.
Experimental example 4
The only difference from example 3 is that the nano-silica solution was replaced with deionized water.
Experimental example 5
The only difference from example 3 is that no nanosilica was added to the nanosilica solution.
As can be seen from experimental examples 1-5, the nano silicon dioxide liquid is replaced by deionized water in the preparation of the synergistic liquid, the trend of the influence on the performance of the product is larger under the conventional condition, the nano bentonite powder is not added in the preparation of the synergistic liquid, and the influence effect on the product is more obvious under the high-temperature and humid conditions, so that the synergistic cooperation of the nano silicon dioxide liquid and the nano bentonite powder can obviously improve the performance effect of the product; and dopamine hydrochloride is not added in the preparation of the synergistic liquid, a silane coupling agent is not added, nano silicon dioxide is not added in the nano silicon dioxide liquid, and the performances of the product have different degrees of deterioration trend; the synergistic liquid of the invention has specificity in preparation, and other methods are adopted to replace the synergistic liquid, so that the effect is not obvious as compared with the invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The high-elongation low-profile electrolytic copper foil additive is characterized by comprising the following raw materials in parts by weight:
8-12 parts of polydithio-dipropyl sodium sulfonate, 7-10 parts of gelatin, 6-9 parts of polyethylene glycol, 4-7 parts of collagen, 5-8 parts of dodecyl diethanolamide, 2-5 parts of hydroxyethyl cellulose and 2-5 parts of sodium phthaloyl sulfimide;
the electrolytic copper foil additive also comprises 7-11 parts of continuous synergistic agent based on graphene modification and 4-7 parts of yttrium modified synergistic agent; the preparation method of the graphene-modified continuous efficacy-regulating feed additive comprises the following steps:
S01: placing graphene into a sufficient amount of potassium permanganate solution with the mass fraction of 10%, stirring uniformly, and then washing, filtering and drying; carrying out heat improvement treatment on the dried graphene to obtain a heat-improved graphene body;
S02: preparation of graphene modified continuous feed:
S021: immersing sodium alginate into a sufficient amount of sodium silicate solution with the mass fraction of 10%, performing ultrasonic improvement treatment, performing ultrasonic treatment, performing suction filtration, and drying;
S022: uniformly mixing sodium alginate of S021 and sodium lignin sulfonate solution with the total amount of 2-5 times of the total amount of the sodium alginate of S021 to obtain continuous feed liquor;
s023: mixing the graphene body with the continuous feed liquid according to the weight ratio of 2:5, performing primary ball milling treatment, and after ball milling, washing and drying to obtain a graphene modified continuous feed agent;
S03: preparing 5% lanthanum chloride solution by mass, adding 2-5 parts of lanthanum chloride solution and 1-3 parts of carboxymethyl cellulose into 4-7 parts of phosphoric acid buffer solution, and fully blending to obtain an effective connection regulator;
Mixing the effective continuous modifier and the graphene modified continuous modifier according to a weight ratio of 3:5, performing secondary ball milling treatment, and washing and drying after ball milling is finished to obtain the graphene modified continuous modified effective continuous modifier;
the preparation method of the yttrium improved synergist comprises the following steps:
s101: firstly, placing yttrium oxide in a proton irradiation box for irradiation for 5-10 min, wherein the irradiation power is 350W, and obtaining an irradiated yttrium oxide agent;
S102: blending 4-6 parts of irradiated yttrium oxide agent and 6-10 parts of synergistic liquid for ball milling treatment, and after ball milling, washing and drying to obtain an yttrium improved synergistic agent; wherein the ball milling rotating speed of the blending ball milling treatment is 1200-1500 r/min, and the ball milling is carried out for 1-2 h; the preparation method of the synergistic liquid comprises the following steps:
uniformly mixing nano silicon dioxide and chitosan solution with the mass fraction of 5% according to the weight ratio of 4:7 to fully obtain nano silicon dioxide solution; 1 to 2 parts of dopamine hydrochloride, 4 to 7 parts of nano silicon dioxide liquid, 2 to 3 parts of nano bentonite powder and 0.25 to 0.35 part of silane coupling agent are fully mixed to obtain a synergistic liquid.
2. The high-elongation low-profile electrolytic copper foil additive according to claim 1, further comprising the following raw materials in parts by weight:
10 parts of sodium polydithio-dipropyl sulfonate, 8.5 parts of gelatin, 7.5 parts of polyethylene glycol, 5.5 parts of collagen, 6.5 parts of dodecyl diethanolamide, 3.5 parts of hydroxyethyl cellulose and 3.5 parts of sodium phthalylsulfonimide; the electrolytic copper foil additive also comprises 8.5 parts of continuous effect additive based on graphene modification and 5.5 parts of yttrium modified synergistic agent.
3. The high elongation low profile electrodeposited copper foil additive according to claim 1, wherein said phosphate buffer solution has a pH of 5.5; the mass fraction of the sodium lignin sulfonate solution is 10-12%;
The ball milling rotating speed of the mixed primary ball milling treatment is 750-850 r/min, and the ball milling is carried out for 1h; the ball milling rotating speed of the mixing secondary ball milling treatment is 550-650 r/min, and the ball milling is carried out for 2 hours.
4. The high-elongation low-profile electrolytic copper foil additive according to claim 1, wherein the heat improvement treatment is performed by heating to 170-180 ℃ at a rate of 1-3 ℃/min, maintaining the temperature for 5-10 min, heating to 250-260 ℃ at a rate of 2-5 ℃/min, maintaining the temperature for 2-5 min, and finally air-cooling to room temperature.
5. The high-elongation low-profile electrolytic copper foil additive according to claim 1, wherein the ultrasonic power of the ultrasonic improvement treatment is 350 to 400W and the ultrasonic time is 10min.
6. The high-elongation low-profile electrolytic copper foil additive according to claim 1, wherein the silane coupling agent is a silane coupling agent KH560.
7. Use of the high elongation low profile electrodeposited copper foil additive according to any one of claims 1-6 in the preparation of electrodeposited copper foil.
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