CN111253865A - Antistatic water-based adhesive for vulcanized shoes and preparation method thereof - Google Patents
Antistatic water-based adhesive for vulcanized shoes and preparation method thereof Download PDFInfo
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- CN111253865A CN111253865A CN202010186551.7A CN202010186551A CN111253865A CN 111253865 A CN111253865 A CN 111253865A CN 202010186551 A CN202010186551 A CN 202010186551A CN 111253865 A CN111253865 A CN 111253865A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to an antistatic water-based adhesive for vulcanized shoes and a preparation method thereof, wherein the antistatic water-based adhesive for vulcanized shoes is prepared from a water-based polyurethane dispersion, isobutyl dicyanoacrylate, tapioca starch, soybean fiber, polyethylene glycol, diaminodiphenylmethane, vinyl triamine, aluminum sulfate, an antistatic agent, sodium carboxymethylcellulose and deionized water; the antistatic water-based adhesive for vulcanized shoes prepared by the invention has high curing speed, can be quickly cured and molded in vulcanized shoes, has smooth surface and is not easy to generate static electricity, and the antistatic agent is added to further enhance the antistatic performance of the antistatic water-based adhesive for vulcanized shoes, is not easy to generate static electricity, can obviously improve the wearing comfort and safety, and expands the application field.
Description
Technical Field
The invention belongs to the technical field of adhesives, and particularly relates to an antistatic water-based adhesive for vulcanized shoes and a preparation method thereof.
Background
Vulcanized shoes are articles frequently used in daily life of human beings, and in dry winter, the vulcanized shoes inevitably generate static electricity due to shoe material types or selection of shoe adhesives, and water seepage occurs in rainy weather, so that wearing and use of the shoes and body health of human beings are affected. The traditional adhesive used for vulcanized shoes is low in strength and easy to crack, the product quality and the appearance attractiveness are affected, the requirement of consumers on the overall performance of the vulcanized shoes is increased, and good waterproofness and antistatic property are also taken into consideration, so that how to prepare the adhesive which is good in waterproofness and has the antistatic property is paid much attention to when the adhesive is used in the preparation process of the vulcanized shoes.
Chinese patent CN103265910A discloses a water-based antistatic adhesive for shoes and a preparation method thereof, which comprises natural latex, a ball-milled water-based vulcanization system, ammonia water, peregal O, an anti-electric agent SN, sodium carboxymethylcellulose and soft water. The formula and the preparation method of the water-based antistatic adhesive for shoes are researched, so that the antistatic adhesive which is safe, environment-friendly and good in adhesive property is obtained, and the material source is wide, the cost is low, the safety is high, the preparation process is simple, and the preparation method is suitable for industrial production. The adhesive is simple and easy to implement, low in cost and good in using effect, but the waterproof performance of the adhesive is general, the water seepage is easy to occur when the adhesive is worn in rainy days, and the comfort level is reduced.
Chinese patent CN107652480A discloses an antistatic dust-absorbing water-blocking adhesive for cloth-covered rubber shoes, a preparation method and a use method thereof. The invention can greatly improve the adhesive property of rubber shoe foxing and polyester filament grain cloth under a specific use method through a unique adhesive system consisting of an upper fiber water-blocking coating grafting agent, an adhesive transition agent, an adhesive and a rubber surface treating agent. The invention has good bonding strength, and the cloth-covered rubber shoes have the functions of water resistance and dust prevention, thereby prolonging the service life of the rubber shoes and improving the appearance quality of the rubber shoes. The method is simple and easy to industrialize, but the antistatic property of the antistatic coating is general, the antistatic coating is easy to crack and delaminate when being in a rainwater environment for a long time, and the performance needs to be further improved.
Chinese patent CN107118713B discloses a sole adhesive, which uses EVA glue as sole adhesive, wherein the EVA glue is prepared by using EVA resin, water and n-butyl alcohol as main components and cooperating with hydrolyzed peach gum and modified starch; the adhesive prepared by the invention has good strength and convenient use, does not generate volatile toxic substances in the production and use processes, and realizes the effects of safety and environmental protection; the sole adhesive is applied to the field of sole adhesion, the adhesion strength is not less than 3.0KN/m, the problem that the sole is easy to degum can be avoided, the adhesion strength of the adhesive can be obviously improved by adding the synergistic effect of the hydrolyzed peach gum and the modified starch, the bacteriostatic rate of the adhesive is also greatly improved, and particularly the inhibitory effect on trichomonad is obvious, so that the generation of dermatophytosis can be avoided, the health and safety of a wearer on the feet are ensured, and the comfort is obviously improved.
Disclosure of Invention
The invention aims to provide an antistatic water-based adhesive for vulcanized shoes, which solves the problems of poor waterproofness, low adhesive strength, easy cracking and faulting, poor antistatic property and complex preparation process of the conventional adhesive for vulcanized shoes.
In order to solve the defects and find a better antistatic water-based adhesive for vulcanized shoes, the invention provides the following technical scheme:
the antistatic water-based adhesive for the vulcanized shoes is prepared from a water-based polyurethane dispersion, isobutyl dicyanoacrylate, tapioca starch, soybean fiber, polyethylene glycol, diaminodiphenylmethane, vinyl triamine, aluminum sulfate, an antistatic agent, sodium carboxymethylcellulose and deionized water. The aqueous polyurethane dispersion can improve the bonding strength, improve the dispersion degree of the components and improve the stability; the isobutyl dicyanoacrylate can enhance the bonding strength of the adhesive, is not easy to delaminate and crack, and is added with cassava starch and soybean fibers, so that the bonding strength of the adhesive is further improved, the waterproofness is enhanced, and the adhesive cannot seep water, crack or crack when being in a rainwater environment for a long time; the polyethylene glycol improves the stability of the system and keeps uniform characters; the aluminum sulfate has certain emulsification effect, and the bonding strength and stability of the adhesive are enhanced; diaminodiphenylmethane and vinyl triamine improve the curing rate, promote the surface smoothness of the kneader of the invention, reduce the static electricity generation.
Further, the antistatic agent is one or any two of stearyl dimethyl amyl ammonium chloride, (lauramidopropyl trimethyl ammonium) methyl sulfate, polyethylene oxide and fatty acid alkanolamide.
Further, aluminum sulfate is octadecahydrate.
Further, the antistatic water-based adhesive for vulcanized shoes comprises the following raw materials in parts by weight: 6.5 to 8.5 portions of aqueous polyurethane dispersoid, 2.2 to 2.6 portions of isobutyl dicyanoacrylate, 3.0 to 3.8 portions of cassava starch, 1.2 to 1.8 portions of soybean fiber, 0.75 to 1.05 portions of polyethylene glycol, 0.34 to 0.44 portion of diaminodiphenylmethane, 0.15 to 0.25 portion of vinyl triamine, 1.22 to 1.44 portions of aluminum sulfate, 0.08 to 0.20 portion of antistatic agent, 0.25 to 0.45 portion of sodium carboxymethylcellulose and 20 to 40 portions of deionized water.
The invention also provides a preparation method of the antistatic water-based adhesive for vulcanized shoes, which comprises the following steps:
s10, drying the soybean fibers in parts by weight at 105-135 ℃ for 3.5-4.5 h, then crushing to 100-200 meshes, then mixing with the cassava starch in parts by weight, adding the isobutyl dicyanoacrylate in parts by weight, magnetically stirring for 5-8 min, and then carrying out ultrasonic treatment for 30min to obtain a composition A;
s20, dissolving the aluminum sulfate in parts by weight in the deionized water in parts by weight, adding the aqueous polyurethane dispersion in parts by weight, stirring and dispersing at the speed of 250-450 r/min for 10-15 min, adding the S10 composition A and the polyethylene glycol and the sodium carboxymethyl cellulose in parts by weight, and quickly stirring for 15-20 min to obtain a composition B;
and (3) adding the diaminodiphenylmethane, the vinyl triamine and the antistatic agent in parts by weight into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing for 12-18 min to obtain the antistatic water-based adhesive for the vulcanized shoes.
Furthermore, in S10, the magnetic stirring speed is 1000 r/min-2000 r/min.
Further, in S10, the ultrasonic temperature is 65 ℃ to 85 ℃.
Further, in S20, the stirring dispersion temperature was 80 ℃ to 85 ℃.
Furthermore, in S20, the rapid stirring speed is 850 r/min-1250 r/min.
Furthermore, in S30, the shear rate is 2500r, min-3500 r/min.
According to the technical scheme, the invention has the following beneficial effects:
(1) the antistatic water-based adhesive for vulcanized shoes prepared by the invention has high curing speed, can be quickly cured and molded in vulcanized shoes, has smooth surface and is not easy to generate static electricity, and the antistatic agent is added to further enhance the antistatic performance of the antistatic water-based adhesive for vulcanized shoes, is not easy to generate static electricity, can obviously improve the wearing comfort and safety, and expands the application field;
(2) the antistatic water-based adhesive for vulcanized shoes prepared by the invention has good waterproofness, is not easy to crack and crack when being worn and used in a long-time rainwater environment, does not have the phenomena of fault and layering, and has long service life and wide application range;
(3) the antistatic water-based adhesive for vulcanized shoes prepared by the invention has good bonding strength and high stability, and does not generate layering and sedimentation during storage. Normal use is not affected;
(4) the antistatic water-based adhesive for vulcanized shoes has the advantages of low raw material price, simple and feasible preparation method, low production cost, good economic benefit and suitability for wide popularization.
The present invention will be described in further detail with reference to the following embodiments.
Detailed Description
The invention is further illustrated by the following specific examples, which, however, are to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever.
The present invention has been described generally and/or specifically with respect to materials used in testing and testing methods. Although many materials and methods of operation are known in the art for the purpose of carrying out the invention, the invention is nevertheless described herein in as detail as possible. It will be apparent to those skilled in the art that the materials and methods of operation used in the present invention are well known in the art, unless otherwise specified.
Example 1
Antistatic water-based adhesive for vulcanized shoes
The preparation method comprises the following steps:
s10, drying 1.2kg of soybean fibers at 105 ℃ for 3.5h, then crushing to 100 meshes, then mixing with 3.0kg of tapioca starch, adding 2.2kg of isobutyl dicyanoacrylate, magnetically stirring at 1000r/min for 5min, and then ultrasonically treating at 65 ℃ for 30min to obtain a composition A;
s20, dissolving 1.22kg of aluminum sulfate in 20kg of deionized water, then adding 6.5kg of aqueous polyurethane dispersion, stirring and dispersing at the temperature of 80 ℃ at the speed of 250r/min for 10min, then adding S10 composition A, 0.75kg of polyethylene glycol and 0.25kg of sodium carboxymethylcellulose, and stirring at the speed of 850r/min for 15min to obtain composition B;
wherein the aluminum sulfate is octadecahydrate.
And (3) adding 0.34kg of diaminodiphenylmethane, 0.15kg of vinyl triamine and 0.08kg of antistatic agent into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing at the speed of 2500 r/min for 12min to obtain the antistatic water-based adhesive for vulcanized shoes.
Wherein the antistatic agent is stearyl dimethyl amyl ammonium chloride.
Tests show that when the antistatic water-based adhesive for vulcanized shoes prepared in the embodiment is used in the preparation process of vulcanized shoes, the vulcanized shoe finished product is placed at room temperature for 12 hours, and the adhesive strength is measured to be 5.85KN/m according to GB/T532-2008; and the waterproof effect is good; and the antistatic performance of the vulcanized shoe is 10 according to GB/T21146-2007 measurement6Ω。
Example 2
Antistatic water-based adhesive for vulcanized shoes
The preparation method comprises the following steps:
s10, drying 1.8kg of soybean fiber at 135 ℃ for 4.5h, then crushing to 200 meshes, then mixing with 3.8kg of tapioca starch, adding 2.6kg of isobutyl dicyanoacrylate, magnetically stirring at 2000r/min for 8min, and then ultrasonically treating at 85 ℃ for 30min to obtain a composition A;
s20, dissolving 1.44kg of aluminum sulfate in 40kg of deionized water, adding 8.5kg of aqueous polyurethane dispersoid, stirring and dispersing at the temperature of 85 ℃ for 15min at the speed of 450r/min, then adding S10 composition A, 1.05kg of polyethylene glycol and 0.45kg of sodium carboxymethyl cellulose, and stirring at the speed of 1250r/min for 20min to obtain composition B;
wherein the aluminum sulfate is octadecahydrate.
And (3) adding 0.44kg of diaminodiphenylmethane, 0.25kg of vinyl triamine and 0.20kg of antistatic agent into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing at the speed of 3500r/min for 18min to obtain the antistatic water-based adhesive for vulcanized shoes.
Wherein, the antistatic agent is (lauramide propyl trimethyl ammonium) methyl sulfate.
Tests show that when the antistatic water-based adhesive for vulcanized shoes prepared in the embodiment is used in the preparation process of vulcanized shoes, the vulcanized shoe finished product is placed at room temperature for 12 hours, and the adhesive strength is measured to be 6.03KN/m according to GB/T532-2008; and the waterproof effect is good; and the antistatic performance of the vulcanized shoe is 10 according to GB/T21146-2007 measurement6Ω。
Example 3
Antistatic water-based adhesive for vulcanized shoes
The preparation method comprises the following steps:
s10, drying 1.3kg of soybean fibers at 109 ℃ for 4.5h, then crushing to 120 meshes, then mixing with 3.2kg of tapioca starch, adding 2.3kg of isobutyl dicyanoacrylate, magnetically stirring at 1200r/min for 6min, and then ultrasonically treating at 70 ℃ for 30min to obtain a composition A;
s20, dissolving 1.28kg of aluminum sulfate in 24kg of deionized water, adding 6.9kg of aqueous polyurethane dispersion, stirring and dispersing at the temperature of 81 ℃ at the speed of 300r/min for 11min, adding S10 of composition A, 0.81kg of polyethylene glycol and 0.29kg of sodium carboxymethylcellulose, and stirring at the speed of 950r/min for 16min to obtain a composition B;
wherein the aluminum sulfate is octadecahydrate.
And (3) adding 0.38kg of diaminodiphenylmethane, 0.19kg of vinyl triamine and 0.10kg of antistatic agent into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing at the speed of 2800r/min for 13min to obtain the antistatic water-based adhesive for vulcanized shoes.
Wherein the antistatic agent is polyethylene oxide.
Tests show that when the antistatic water-based adhesive for vulcanized shoes prepared in the embodiment is used in the preparation process of vulcanized shoes, the vulcanized shoe finished product is placed at room temperature for 12 hours, and the adhesive strength is measured to be 5.98KN/m according to GB/T532-2008; and the waterproof effect is good; and the antistatic performance of the vulcanized shoe is 10 according to GB/T21146-2007 measurement5Ω。
Example 4
Antistatic water-based adhesive for vulcanized shoes
The preparation method comprises the following steps:
s10, drying 1.7kg of soybean fiber at 131 ℃ for 3.5h, then crushing to 180 meshes, then mixing with 3.7kg of tapioca starch, adding 2.5kg of isobutyl dicyanoacrylate, magnetically stirring at 1800r/min for 7min, and then ultrasonically treating at 81 ℃ for 30min to obtain a composition A;
s20, dissolving 1.38kg of aluminum sulfate in 36kg of deionized water, adding 8.1kg of aqueous polyurethane dispersion, stirring and dispersing at 84 ℃ for 14min at the speed of 400r/min, adding S10 of composition A, 0.98kg of polyethylene glycol and 0.40kg of sodium carboxymethylcellulose, and stirring at 1150r/min for 19min to obtain composition B;
wherein the aluminum sulfate is octadecahydrate.
And (3) adding 0.42kg of diaminodiphenylmethane, 0.23kg of vinyl triamine and 0.18kg of antistatic agent into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing at the speed of 3200r/min for 17min to obtain the antistatic water-based adhesive for vulcanized shoes.
Wherein the antistatic agent is fatty acid alkanolamide.
Tests show that when the antistatic water-based adhesive for vulcanized shoes prepared in the embodiment is used in the preparation process of vulcanized shoes, the vulcanized shoe finished product is placed at room temperature for 12 hours, and the adhesive strength is measured to be 6.32KN/m according to GB/T532-2008; and the waterproof effect is good; and the antistatic performance of the vulcanized shoe is 10 according to GB/T21146-2007 measurement7Ω。
Example 5
Antistatic water-based adhesive for vulcanized shoes
The preparation method comprises the following steps:
s10, drying 1.5kg of soybean fibers at 122 ℃ for 4.0h, then crushing to 150 meshes, then mixing with 3.4kg of tapioca starch, adding 2.4kg of isobutyl dicyanoacrylate, magnetically stirring at 1500r/min for 6min, and then ultrasonically treating at 75 ℃ for 30min to obtain a composition A;
s20, dissolving 1.33kg of aluminum sulfate in 31kg of deionized water, adding 7.5kg of aqueous polyurethane dispersion, stirring and dispersing at 83 ℃ for 13min at the speed of 350r/min, adding S10 composition A, 0.88kg of polyethylene glycol and 0.35kg of sodium carboxymethylcellulose, and stirring at 1050r/min for 18min to obtain composition B;
wherein the aluminum sulfate is octadecahydrate.
And (3) adding 0.39kg of diaminodiphenylmethane, 0.20kg of vinyl triamine and 0.16kg of antistatic agent into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing at the speed of 3000r/min for 15min to obtain the antistatic water-based adhesive for vulcanized shoes.
Wherein the antistatic agent is a combination of stearyl dimethyl amyl ammonium chloride and fatty acid alkanolamide, and the mass ratio is 1: 0.7.
tests show that when the antistatic water-based adhesive for vulcanized shoes prepared in the embodiment is used in the preparation process of vulcanized shoes, the vulcanized shoe finished product is placed at room temperature for 12 hours, and the adhesive strength is measured to be 5.99KN/m according to GB/T532-2008; and the waterproof effect is good; and the antistatic property of vulcanized shoes is determined according to GB/T21146-2007Electrical property of 106Ω。
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The antistatic water-based adhesive for the vulcanized shoes is characterized by being prepared from a water-based polyurethane dispersion, isobutyl dicyanoacrylate, tapioca starch, soybean fibers, polyethylene glycol, diaminodiphenylmethane, vinyl triamine, aluminum sulfate, an antistatic agent, sodium carboxymethylcellulose and deionized water.
2. The antistatic aqueous adhesive for vulcanized shoes as set forth in claim 1, wherein the antistatic agent is one or a combination of two of stearyl dimethyl amyl ammonium chloride, methyl lauryl amidopropyl trimethyl ammonium sulfate, polyethylene oxide and fatty acid alkanolamide.
3. The antistatic aqueous adhesive for vulcanized shoes as claimed in claim 1, wherein the aluminum sulfate is octadecahydrate.
4. The antistatic aqueous adhesive for vulcanized shoes as claimed in claim 1, wherein the antistatic aqueous adhesive for vulcanized shoes comprises the following raw materials in parts by weight: 6.5 to 8.5 portions of aqueous polyurethane dispersoid, 2.2 to 2.6 portions of isobutyl dicyanoacrylate, 3.0 to 3.8 portions of cassava starch, 1.2 to 1.8 portions of soybean fiber, 0.75 to 1.05 portions of polyethylene glycol, 0.34 to 0.44 portion of diaminodiphenylmethane, 0.15 to 0.25 portion of vinyl triamine, 1.22 to 1.44 portions of aluminum sulfate, 0.08 to 0.20 portion of antistatic agent, 0.25 to 0.45 portion of sodium carboxymethylcellulose and 20 to 40 portions of deionized water.
5. The preparation method of the antistatic water-based adhesive for vulcanized shoes as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
s10, drying the soybean fibers in parts by weight at 105-135 ℃ for 3.5-4.5 h, then crushing to 100-200 meshes, then mixing with the cassava starch in parts by weight, adding the isobutyl dicyanoacrylate in parts by weight, magnetically stirring for 5-8 min, and then carrying out ultrasonic treatment for 30min to obtain a composition A;
s20, dissolving the aluminum sulfate in parts by weight in the deionized water in parts by weight, adding the aqueous polyurethane dispersion in parts by weight, stirring and dispersing at the speed of 250-450 r/min for 10-15 min, adding the S10 composition A and the polyethylene glycol and the sodium carboxymethyl cellulose in parts by weight, and quickly stirring for 15-20 min to obtain a composition B;
and (3) adding the diaminodiphenylmethane, the vinyl triamine and the antistatic agent in parts by weight into the composition B in the S30 and S20, uniformly mixing, and shearing and dispersing for 12-18 min to obtain the antistatic water-based adhesive for the vulcanized shoes.
6. The method according to claim 5, wherein in S10, the magnetic stirring rate is 1000r/min to 2000 r/min.
7. The method according to claim 5, wherein the ultrasonic temperature is 65 ℃ to 85 ℃ in S10.
8. The method according to claim 5, wherein the stirring and dispersing temperature in S20 is 80 ℃ to 85 ℃.
9. The method according to claim 5, wherein the rapid stirring speed in S20 is 850 to 1250 r/min.
10. The method according to claim 5, wherein the shear rate in S30 is 2500 r/min-3500 r/min.
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| CN115000408A (en) * | 2022-07-01 | 2022-09-02 | 湖北亿纬动力有限公司 | Composite binder, preparation method and preparation method of negative plate |
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