CN111636214A - Water-based auxiliary agent for synthetic leather and preparation method thereof - Google Patents
Water-based auxiliary agent for synthetic leather and preparation method thereof Download PDFInfo
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- CN111636214A CN111636214A CN202010549030.3A CN202010549030A CN111636214A CN 111636214 A CN111636214 A CN 111636214A CN 202010549030 A CN202010549030 A CN 202010549030A CN 111636214 A CN111636214 A CN 111636214A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/142—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer
- D06N3/144—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer with polyurethane and polymerisation products, e.g. acrylics, PVC
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/406—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles with gas supply only at the bottom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
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- D06N2209/00—Properties of the materials
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- D06N2211/28—Artificial leather
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Abstract
The invention belongs to the technical field of aqueous auxiliary agents of synthetic leather, and particularly relates to an aqueous auxiliary agent for synthetic leather and a preparation method thereof, wherein the aqueous auxiliary agent comprises 10-15 parts of polyvinylpyrrolidone, 5-7 parts of polyvinyl alcohol resin, 4-6 parts of phospholipid molecular solution, 2-3 parts of far infrared ceramic powder, 5-10 parts of polytetrafluoroethylene emulsion, 1-2 parts of polyethylene oxide, 2-3 parts of poly-1-butylene, 1-2 parts of mixed fiber and 60-100 parts of water; according to the invention, by adding polyvinylpyrrolidone and polyvinyl alcohol resin, the adhesive property and the film forming property are better, so that polyurethane molecules can be better dispersed, and the polyurethane molecules form stable colloid, so that the synthetic leather has uniform internal fluid and higher strength; the addition of the poly-1-butene has the outstanding advantages of excellent creep resistance, environmental stress cracking resistance and impact resistance; the ultraviolet shielding rate of the added far infrared ceramic powder is up to 98 percent, and the far infrared ceramic powder has the functions of antibiosis, bacteriostasis, odor removal and mildew prevention; the mixed fiber is added to improve the tearing resistance of the synthetic leather.
Description
Technical Field
The invention belongs to the technical field of aqueous auxiliary agents of synthetic leather, and particularly relates to an aqueous auxiliary agent for synthetic leather and a preparation method thereof.
Background
Synthetic leather is a plastic product that mimics the composition and structure of natural leather and can be used as a substitute material for natural leather. The impregnated non-woven fabric is usually used as a net layer, and the microporous polyurethane layer is used as a grain layer. The front and back surfaces of the leather are similar to leather, have certain air permeability, are closer to natural leather than common artificial leather, and are widely used for manufacturing shoes, boots, bags, balls and the like. With the continuous development of technology, the living standard of human beings is continuously improved, and the requirements of consumer goods are higher, but the use of natural leather is gradually reduced due to the restriction of natural conditions and the enhancement of consciousness of protecting animals of all countries in the world, and synthetic leather is developed to replace the natural leather.
In order to ensure the quality of synthetic leather, water-based auxiliaries, such as a water-based softener for making synthetic leather softer, a water-based antifreeze agent for making synthetic leather stronger in frost resistance, a water-based defoaming agent for preventing bubbles from being generated in the synthetic process of synthetic leather, and the like, are often added in the synthetic leather process, but the functions of the existing water-based auxiliaries are single, when the synthetic leather is prepared, a plurality of water-based auxiliaries with different functions are required to be added to improve various performances of the synthetic leather, so that a pre-experiment is required to determine the proportion of the various water-based auxiliaries, so that various performances of the synthetic leather can be balanced, namely, one proportion of the various water-based auxiliaries is determined, the quality of the synthetic leather can be optimized under the condition of the proportion, obviously, the determination of the proportion of the various water-based auxiliaries needs to be repeatedly adjusted by a plurality of experiments, time is wasted, and a large, therefore, a multifunctional water-based auxiliary agent is needed, and when the synthetic leather is prepared, the addition amount of the water-based auxiliary agent is determined, so that manpower, material resources and time are saved; in the prior art, in order to improve the tear resistance of the synthetic leather, the toughening fiber yarns are often added during the synthesis of the aqueous assistant, for example, sepiolite fibers are added to an aqueous tear resistance assistant suitable for the synthetic leather proposed by the patent with the patent application number of CN201710165005.3 to improve the tear resistance of the synthetic leather; because the toughening fiber filaments are filamentous and have high adhesion among the fiber filaments, the toughening fiber filaments are agglomerated when being added into a mixed solution during the synthesis of the aqueous auxiliary agent, so that the dispersion in the mixed solution is not easy to occur, the viscosity of the mixed solution during the preparation of the aqueous auxiliary agent is high, and the uniform stirring is difficult even if a stirring device is used.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that the synthetic leather aqueous auxiliary agent in the prior art is single in function and the toughened fiber filaments are not easy to be uniformly distributed in the mixed solution in the process of synthesizing the aqueous auxiliary agent, the invention provides the aqueous auxiliary agent for the synthetic leather and the preparation method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a water-based auxiliary agent for synthetic leather, which is prepared from the following raw materials in parts by weight:
10-15 parts of polyvinylpyrrolidone, 5-7 parts of polyvinyl alcohol resin, 4-6 parts of phospholipid molecular solution, 2-3 parts of far infrared ceramic powder, 5-10 parts of polytetrafluoroethylene emulsion, 1-2 parts of polyethylene oxide, 2-3 parts of poly-1-butylene, 1-2 parts of mixed fiber and 60-100 parts of water; the polyvinyl pyrrolidone and the polyvinyl alcohol resin have good cohesiveness and film-forming property, when the polyvinyl pyrrolidone and the polyvinyl alcohol resin are added into the synthetic leather, polyurethane molecules can be better dispersed, and the polyurethane molecules form stable colloid, so that the synthetic leather has uniform internal fluid and high strength; the poly-1-butene has the outstanding advantages of excellent creep resistance, environmental stress cracking resistance and impact resistance; the ultraviolet shielding rate of the far infrared ceramic powder is as high as 98%, and the far infrared ceramic powder has the functions of resisting and inhibiting bacteria, removing odor and preventing mildew; the mixed fiber can improve the tearing resistance of the synthetic leather.
Preferably, the mixed fiber is formed by blending sepiolite fiber and glass fiber; because the sepiolite fiber has good wear resistance, the glass fiber has higher strength, but the problem of poor friction resistance exists, the two fibers are blended to obtain the mixed fiber with high strength and high wear resistance, and when the aqueous auxiliary agent is applied to the synthetic leather, the tearing resistance and the pulling resistance of the synthetic leather can be improved, and meanwhile, the wear resistance of the synthetic leather can be improved.
Preferably, the phospholipid molecule solution is phospholipid powderAdding water, mixing and stirring to obtain phospholipid powder, wherein the phospholipid powder is prepared by adding water into soybean crude oil, stirring at 70-90 deg.C for 30min, hydrating phospholipid into colloidal precipitate, continuously centrifuging to obtain hydrated phospholipid, and decolorizing with hydrogen peroxide; then drying under reduced pressure at 90-100 ℃ and 2.13-8.00 kPa to obtain liquid phospholipid, and mixing the liquid phospholipid with ZnCl2Mixing to obtain phospholipid-ZnCl2Extracting the mixture with acetone to remove impurities, drying the precipitate after impurity removal to obtain phospholipid powder with the purity of 99.1%, and finally sieving the obtained phospholipid powder with a 200-mesh sieve; the purity of the phospholipid powder prepared by the precipitation method can reach 99.1 percent, and the phospholipid powder can further effectively play the role of phospholipid molecules.
A preparation method of synthetic leather water-based auxiliary agent is suitable for the synthetic leather water-based auxiliary agent, and comprises the following steps:
s1, adding polyvinylpyrrolidone and polyvinyl alcohol resin into water at the temperature of 80-90 ℃ for dissolving, heating to a reflux state at the speed of 5 ℃/min, and preserving heat for 5-10 min; adding phospholipid molecular solution and far infrared ceramic powder, mixing and stirring uniformly, and keeping the temperature to obtain solution A;
s2, adding polyethylene oxide into the solution A obtained in the step S1 to obtain a mixed solution B, enabling the mixed solution B to flow through a mixing box, then adding mixed fibers into the bulk cargo device, and intermittently adding the mixed fibers to the surface of the mixed solution B from the top of the mixing box through airflow, so that the mixed solution B and the mixed fibers are uniformly mixed to obtain a mixed solution C;
s3, adding the polytetrafluoroethylene emulsion and the poly-1-butene into the mixed solution C obtained in the step S2, introducing the mixed solution C into a stirrer for stirring, simultaneously heating the mixed solution C to 65-85 ℃ at the speed of 10 ℃/min, preserving the temperature for 10-15min, naturally cooling to room temperature, sending into a low-temperature dryer, drying the obtained solid, and grinding the obtained solid into micro powder by a grinder;
the material scattering device in the S3 comprises a material scattering box, a material conveying pipe, an air cylinder, a fixed disc and an air inlet pipe; the bulk material box is of a cylindrical structure; the top of the bulk material box is designed in a spherical shell shape; a sealing plug is arranged in a feed inlet on the wall of the bulk cargo tank; a fixed disc is fixedly arranged on the inner wall of the bulk material box close to the bottom; the fixed disc is uniformly provided with air outlet holes; the air outlet holes are inclined towards the anticlockwise direction, and the diameters of the two adjacent groups of air outlet holes are different in size; an air cylinder is fixedly arranged at the central position of the fixed disc; the bottom of the cylinder and the bottom of the bulk material box are respectively communicated with two branches of the air inlet pipe; the inner wall of the bottom of the cylinder is provided with a piston plate through a spring; a baffle ring is fixedly arranged on the inner wall of the cylinder close to the top end; an air outlet pipe is arranged between the baffle ring and the piston plate on the cylinder; the air outlet pipe is of an L-shaped structure and is annularly arranged at the edge of the cylinder at equal intervals; the edge of the piston plate is provided with a columnar groove body; an electric contact is arranged in the columnar groove body through a spring; electromagnets corresponding to the electric contacts are arranged between the air outlet pipe and the baffle ring on the cylinder; the top end of the outer wall of the air cylinder is movably hinged with an iron movable rod through a torsional spring; the iron movable rod forms an included angle with the outer wall of the air cylinder under the action of the torsion spring; the free end of the iron movable rod is fixedly connected with one end of the tension rope; the other end of the tension rope passes through the threading groove on the inner wall of the bulk cargo tank and is fixedly connected with one end of the movable sealing screen plate; one end of the movable sealing screen plate fixedly connected with the tension rope is fixedly connected with the mounting plate through a spring; the tension rope passes through the threading hole on the mounting plate; the mounting plate is fixed on the inner wall of the top of the bulk material box; the top of the bulk material box is provided with a discharge hole; the movable sealing screen plate is positioned right below the discharge hole; limiting plates are fixedly arranged on the inner wall of the top of the bulk material box and positioned on two sides of the discharge hole; the limiting plate is of a U-shaped structure; the top of the discharge hole is communicated with one end of the feed delivery pipe; the other end of the material conveying pipe extends into the mixing box, and the end part of the material conveying pipe is fixedly connected with the material spreading spray head;
when the device works, polyethylene oxide is added into the solution A obtained in the step S to obtain mixed liquid B, the mixed liquid B flows through the inside of the mixing box and keeps a certain liquid level, the mixed fibers are added into the bulk material box from the feeding port, the air inlet pipe is opened at the moment, part of air blown out from the air inlet pipe enters the bottom of the bulk material box and the position between the fixed disks, then the mixed liquid B is blown out through the air outlet holes in the fixed disks, the air blown out from the air outlet holes forms a vortex disturbance state in the bulk material box, the mixed fibers in the bulk material box are uniformly distributed in the bulk material box, and the diameters of the air outlet holes are unequal, so that the wind power blown out from different air outlet holes is unequal in size, the mixed fibers can be suspended in different positions in the bulk material box, and the dispersion is; the other part of the wind blown out from the air inlet pipe enters the inside of the air cylinder, along with the accumulation of the gas in the air cylinder, the gas can push the piston plate in the air cylinder to move upwards, when the piston plate passes through the air outlet pipe on the air cylinder, the gas can be sprayed out from the air outlet pipe at the moment, meanwhile, the electric contact positioned on the piston plate can be contacted with the electromagnet so as to be in circuit connection, the electromagnet recovers magnetism, the electromagnet can attract the iron movable rod so that the free end of the iron movable rod swings downwards, thereby pulling the pull rope, the pull rope drives the movable sealing screen plate to move towards the mounting plate, thereby opening the discharge port, because the air outlet pipe simultaneously sprays the gas, the gas flow at the bottom of the bulk cargo box is increased, the internal pressure of the bulk cargo box is suddenly increased, at the moment, because the discharge port is simultaneously opened, under the effect of large gas flow, the mixed fiber part, uniformly spraying the mixed fibers on the surface of the mixed liquid B; when the gas in the cylinder is sprayed out from the gas outlet pipe, the internal pressure of the cylinder is reduced, when the pushing force of the gas on the piston plate is smaller than the pulling force of the spring on the piston plate, the piston plate moves towards the lower part of the cylinder, the electric contact is disconnected with the electromagnet circuit, the electromagnet does not attract the iron movable rod any more, the iron movable rod bounces off again under the action of the torsion spring, so that the pulling force of the pulling rope on the movable sealing screen plate does not exist, the movable sealing screen plate seals the discharge hole again under the action of the spring, and the material is not fed into the mixing box; gas when the cylinder accumulates the certain degree once more for the piston board is when the outlet duct, reinforced in to the mixing box once more this moment, just like this, the continuous inside through the mixing box of mixed liquid B, and bulk cargo device intermittent type sprays the hybrid fiber to the surface of the mixed liquid B in the mixing box, makes the hybrid fiber can be fine evenly scatter in the inside of mixed liquid B, and need not to use agitating unit, and not only energy-conservation and mixing effect are good.
Preferably, the upper surface of the fixed disc is fixedly provided with an elastic rubber net; the edge of the elastic rubber net is fixedly connected to the inner wall of the bulk material box; flexible belts are uniformly and fixedly arranged on the upper surface of the elastic rubber net; the during operation, form the vortex from venthole spun gas in the inside of bulk cargo case, the vortex drives the flexible band in the shake that the inside of bulk cargo case does not stop, thereby can play the effect of breaking up the hybrid fiber that will be located bulk cargo incasement portion, make the hybrid fiber more even at the inside dispersion of bulk cargo case, and simultaneously, can drive the elasticity rubber net vibrations from top to bottom that is located its bottom in the flexible band shake, thereby bounce the hybrid fiber that falls on the elasticity rubber net on the part once more, thereby once more at the inside homodisperse of bulk cargo case under the effect of air current.
Preferably, the inner wall of the group of limiting plates close to the mounting plate is fixedly provided with soft rubber bristles; the soft rubber bristles are in mutual contact with the lower surface of the movable sealing screen plate; the lower surface of the movable sealing screen plate is provided with an arc-shaped convex plate matched with the soft rubber bristles; the during operation, because the inside gas of bulk bin is vortex form spiral upwards, thereby there is some mixed fiber adhesion bottom surface at the activity sealed otter board under the effect of air current, the mixed fiber who is located its bottom when the activity sealed otter board is opened is difficult for droing, therefore can be detained in the inside of bulk bin, this moment because the activity sealed otter board can pass through the limiting plate when opening, and the soft brush hair of rubber that is located on the limiting plate can be with the mixed fiber of activity sealed otter board bottom to the direction gathering of keeping away from the mounting panel, when the soft brush hair of rubber is from the arc-shaped protruding board of activity sealed otter board bottom during the process, the soft brush hair of rubber will be scattered the mixed fiber that is located the activity sealed otter board bottom under the effect of arc-shaped protruding board this moment, and can get into the inside and mixed liquid B of mixing box through the conveying.
The invention has the following beneficial effects:
1. according to the water-based auxiliary agent for the synthetic leather, the polyvinyl pyrrolidone and the polyvinyl alcohol resin are added, so that the water-based auxiliary agent has good cohesiveness and film-forming property, when the water-based auxiliary agent is added into the synthetic leather, polyurethane molecules can be better dispersed, and the polyurethane molecules form stable colloid, so that the synthetic leather has uniform internal fluid and high strength; the addition of the poly-1-butene has the outstanding advantages of excellent creep resistance, environmental stress cracking resistance and impact resistance; the ultraviolet shielding rate of the added far infrared ceramic powder is up to 98 percent, and the far infrared ceramic powder has the functions of antibiosis, bacteriostasis, odor removal and mildew prevention; the mixed fiber is added to improve the tearing resistance of the synthetic leather.
2. According to the preparation method of the water-based auxiliary agent for the synthetic leather, the bulk material box is arranged, so that the mixed fibers are uniformly dispersed in the bulk material box under the action of air flow, the air outlet pipe on the air cylinder and the movable sealing screen plate at the discharge port are in an intermittent opening state, when the air outlet pipe on the air cylinder is opened, the air flow is increased, the air drives the mixed fibers to enter the mixing box through the discharge port to feed, when the air outlet pipe on the air cylinder is in a closed state, feeding is not carried out at the moment, so that the mixed liquid B continuously passes through the inside of the mixing box, and the bulk material device intermittently sprays the mixed fibers to the surface of the mixed liquid B in the mixing box, so that the mixed fibers can be well uniformly dispersed in the mixed liquid B, a stirring device is not needed, energy is saved, and the mixing effect is good.
3. According to the preparation method of the water-based auxiliary agent for the synthetic leather, the flexible belt is arranged, so that the flexible belt can not only break up the mixed fibers in the bulk material box, but also can drive the elastic rubber net at the bottom of the flexible belt to vibrate up and down while shaking, so that part of the mixed fibers falling on the elastic rubber net are bounced again, and are uniformly dispersed in the bulk material box again under the action of air flow.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method for preparing an aqueous adjuvant according to the present invention;
FIG. 2 is a schematic view of the internal structure of the bulk cargo apparatus of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a schematic view of a fixed disk in a bulk device;
in the figure: the device comprises a bulk material box 1, a material conveying pipe 3, a material scattering spray head 4, a mixing box 5, a feed inlet 6, a tension rope 7, a flexible belt 8, a cylinder 9, an air outlet pipe 10, an air outlet hole 11, a fixed disc 12, an air inlet pipe 13, a discharge hole 14, a limiting plate 15, an arc-shaped protruding plate 16, rubber soft bristles 17, a mounting plate 18, a baffle ring 19, a piston plate 20, a columnar groove body 21, an electric contact 22, an elastic rubber net 23, an electromagnet 24, an iron movable rod 25 and a movable sealing net plate 26.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in figures 1 to 5, the aqueous auxiliary agent for synthetic leather and the preparation method thereof are prepared from the following raw materials in parts by weight:
10-15 parts of polyvinylpyrrolidone, 5-7 parts of polyvinyl alcohol resin, 4-6 parts of phospholipid molecular solution, 2-3 parts of far infrared ceramic powder, 5-10 parts of polytetrafluoroethylene emulsion, 1-2 parts of polyethylene oxide, 2-3 parts of poly-1-butylene, 1-2 parts of mixed fiber and 60-100 parts of water; the polyvinyl pyrrolidone and the polyvinyl alcohol resin have good cohesiveness and film-forming property, when the polyvinyl pyrrolidone and the polyvinyl alcohol resin are added into the synthetic leather, polyurethane molecules can be better dispersed, and the polyurethane molecules form stable colloid, so that the synthetic leather has uniform internal fluid and high strength; the poly-1-butene has the outstanding advantages of excellent creep resistance, environmental stress cracking resistance and impact resistance; the ultraviolet shielding rate of the far infrared ceramic powder is as high as 98%, and the far infrared ceramic powder has the functions of resisting and inhibiting bacteria, removing odor and preventing mildew; the mixed fiber can improve the tearing resistance of the synthetic leather.
As an embodiment of the invention, the mixed fiber is formed by blending sepiolite fiber and glass fiber; because the sepiolite fiber has good wear resistance, the glass fiber has higher strength, but the problem of poor friction resistance exists, the two fibers are blended to obtain the mixed fiber with high strength and high wear resistance, and when the aqueous auxiliary agent is applied to the synthetic leather, the tearing resistance and the pulling resistance of the synthetic leather can be improved, and meanwhile, the wear resistance of the synthetic leather can be improved.
As an embodiment of the invention, the phospholipid molecule solution is prepared by adding water into phospholipid powder, mixing and stirring, wherein the phospholipid powder is prepared by adding water into soybean crude oil, stirring at 70-90 deg.C for 30min, hydrating the phospholipid into colloidal precipitate, performing continuous centrifugal separation to obtain hydrated phospholipid, and decolorizing with hydrogen peroxide; then drying under reduced pressure at 90-100 ℃ and 2.13-8.00 kPa to obtain liquid phospholipid, and mixing the liquid phospholipid with ZnCl2Mixing to obtain phospholipid-ZnCl2Extracting the mixture with acetone to remove impurities, drying the precipitate after impurity removal to obtain phospholipid powder with the purity of 99.1%, and finally sieving the obtained phospholipid powder with a 200-mesh sieve; the purity of the phospholipid powder prepared by the precipitation method can reach 99.1 percent, and the phospholipid powder can further effectively play the role of phospholipid molecules.
A preparation method of synthetic leather water-based auxiliary agent is suitable for the synthetic leather water-based auxiliary agent, and comprises the following steps:
s1, adding polyvinylpyrrolidone and polyvinyl alcohol resin into water at the temperature of 80-90 ℃ for dissolving, heating to a reflux state at the speed of 5 ℃/min, and preserving heat for 5-10 min; adding phospholipid molecular solution and far infrared ceramic powder, mixing and stirring uniformly, and keeping the temperature to obtain solution A;
s2, adding polyethylene oxide into the solution A obtained in the step S1 to obtain a mixed solution B, enabling the mixed solution B to flow through a mixing box, then adding mixed fibers into the bulk cargo device, and intermittently adding the mixed fibers to the surface of the mixed solution B from the top of the mixing box through airflow, so that the mixed solution B and the mixed fibers are uniformly mixed to obtain a mixed solution C;
s3, adding the polytetrafluoroethylene emulsion and the poly-1-butene into the mixed solution C obtained in the step S2, introducing the mixed solution C into a stirrer for stirring, simultaneously heating the mixed solution C to 65-85 ℃ at the speed of 10 ℃/min, preserving the temperature for 10-15min, naturally cooling to room temperature, sending into a low-temperature dryer, drying the obtained solid, and grinding the obtained solid into micro powder by a grinder;
the material scattering device in the S3 comprises a material scattering box 1, a material conveying pipe 3, an air cylinder 9, a fixed disc 12 and an air inlet pipe 13; the bulk box 1 is of a cylindrical structure; the top of the bulk material box 1 is designed to be spherical shell-shaped; a sealing plug is arranged in a feeding port 6 on the wall of the bulk material box 1; a fixed disc 12 is fixedly arranged on the inner wall of the bulk box 1 close to the bottom; the fixed disc 12 is uniformly provided with air outlet holes 11; the air outlet holes 11 are inclined towards the anticlockwise direction, and the diameters of the two adjacent groups of air outlet holes 11 are different in size; the center of the fixed disc 12 is fixedly provided with a cylinder 9; the bottom of the cylinder 9 and the bottom of the bulk material box 1 are respectively communicated with two branches of an air inlet pipe 13; the inner wall of the bottom of the cylinder 9 is provided with a piston plate 20 through a spring; a baffle ring 19 is fixedly arranged on the inner wall of the cylinder 9 close to the top end; an air outlet pipe 10 is arranged on the cylinder 9 and positioned between the baffle ring 19 and the piston plate 20; the air outlet pipe 10 is of an L-shaped structure, and the air outlet pipes 10 are arranged at the edge of the cylinder 9 in an equidistant annular mode; the edge of the piston plate 20 is provided with a columnar groove body 21; an electric contact 22 is arranged in the columnar groove body 21 through a spring; an electromagnet 24 corresponding to the electric contact 22 is arranged between the air outlet pipe 10 and the baffle ring 19 on the cylinder 9; the top end of the outer wall of the cylinder 9 is movably hinged with an iron movable rod 25 through a torsion spring; the iron movable rod 25 forms an included angle with the outer wall of the air cylinder 9 under the action of the torsion spring; the free end of the iron movable rod 25 is fixedly connected with one end of the tension rope 7; the other end of the tension rope 7 penetrates through a threading groove in the inner wall of the bulk material box 1 and is fixedly connected with one end of the movable sealing screen plate 26; one end of the movable sealing screen 26 fixedly connected with the tension rope 7 is fixedly connected with the mounting plate 18 through a spring; the tension rope 7 passes through a threading hole on the mounting plate 18; the mounting plate 18 is fixed on the inner wall of the top of the bulk box 1; the top of the bulk material box 1 is provided with a discharge hole 14; the movable sealing net plate 26 is positioned right below the discharge hole 14; limiting plates 15 are fixedly arranged on the inner wall of the top of the bulk material box 1 and positioned at two sides of the discharge hole 14; the limiting plate 15 is of a U-shaped structure; the top of the discharge hole 14 is communicated with one end of the feed delivery pipe 3; the other end of the material conveying pipe 3 extends into the mixing box 5, and the end part of the material conveying pipe 3 is fixedly connected with the material spreading spray head 4;
when the device works, polyethylene oxide is added into the solution A obtained in S1 to obtain a mixed solution B, the mixed solution B flows through the inside of the mixing box 5 and keeps a certain liquid level, at the moment, the mixed fibers are added into the bulk material box 1 from the feed opening 6, at the moment, the air inlet pipe 13 is opened, part of air blown out from the air inlet pipe 13 enters between the bottom of the bulk material box 1 and the fixed disc 12 and then is blown out through the air outlet holes 11 in the fixed disc 12, the air blown out from the air outlet holes 11 forms a vortex disturbance state in the bulk material box 1, so that the mixed fibers in the bulk material box 1 are uniformly distributed in the bulk material box 1, and the wind power blown out from different air outlet holes 11 is unequal in size due to unequal diameters of the air outlet holes 11, so that the mixed fibers can be suspended at different positions in the bulk material box 1 and are more uniformly dispersed; the other part of the air blown out from the air inlet pipe 13 enters the inside of the air cylinder 9, along with the accumulation of the air in the air cylinder 9, the air can push the piston plate 20 in the air cylinder 9 to move upwards, when the piston plate 20 passes through the air outlet pipe 10 on the air cylinder 9, the air can be sprayed out from the air outlet pipe 10 at the moment, meanwhile, the electric contact 22 on the piston plate 20 can be contacted with the electromagnet 24 so as to be in circuit connection, the electromagnet 24 recovers magnetism, at the moment, the electromagnet 24 can attract the iron movable rod 25 so as to enable the free end of the iron movable rod 25 to swing downwards, thereby pulling the tension rope 7, the tension rope 7 drives the movable sealing screen plate 26 to move towards the direction of the mounting plate 18, thereby opening the discharge port 14, because the air is sprayed out from the air outlet pipe 10 at the same time, the air flow at the bottom of the bulk material box 1 is, under the action of the flow of the atmospheric gas, the mixed fiber part in the bulk material box 1 enters the upper part of a mixing box 5 through a material conveying pipe 3, and the mixed fiber is uniformly sprayed on the surface of the mixed liquid B; when the gas in the cylinder 9 is sprayed out from the gas outlet pipe 10, the internal pressure of the cylinder is reduced, when the pushing force of the gas on the piston plate 20 is smaller than the pulling force of a spring on the piston plate 20, at the moment, the piston plate 20 moves towards the lower part of the cylinder 9, at the moment, the circuit of the electric contact 22 and the electromagnet 24 is disconnected, the electromagnet 24 does not attract the iron movable rod 25 any more, at the moment, the iron movable rod 25 bounces off again under the action of the torsion spring, so that the pulling force of the pulling rope 7 on the movable sealing screen plate 26 is not provided, the movable sealing screen plate 26 seals the discharge hole 14 again under the action of the spring, and at the moment, the gas is not fed into the mixing; gas in cylinder 9 accumulates the certain degree once more for piston plate 20 is when outlet duct 10, reinforced in 5 to the mixing box this moment once more, just so, mix the inside of continuous process mixing box 5 of liquid B, and bulk cargo device intermittent type sprays mixing fiber to the surface of the mixed liquid B in 5 mixing box, makes mixing fiber can be fine evenly scatter in the inside of mixing liquid B, and need not to use agitating unit, and not only energy-conservation and mixing effect are good.
As an embodiment of the present invention, an elastic rubber net 23 is fixedly arranged on the upper surface of the fixed disc 12; the edge of the elastic rubber net 23 is fixedly connected to the inner wall of the bulk material box 1; the upper surface of the elastic rubber net 23 is uniformly and fixedly provided with flexible belts 8; the during operation, form the vortex from 11 spun gaseous inside at bulk cargo case 1 of venthole, the vortex drives the shake that flexible band 8 does not stop in bulk cargo case 1's inside, thereby can play the effect of scattering the mixed fiber that will be located bulk cargo case 1 inside, make mixed fiber more even at bulk cargo case 1's inside dispersion, and simultaneously, can drive the elasticity rubber net 23 vibrations from top to bottom that is located its bottom in the shake of flexible band 8, thereby bounce once more the mixed fiber that falls part on elasticity rubber net 23, thereby at bulk cargo case 1's inside homodispersion once more under the effect of air current.
As an embodiment of the present invention, the inner wall of the set of limiting plates 15 close to the mounting plate 18 is fixedly provided with soft rubber bristles 17; the soft rubber bristles 17 are in mutual contact with the lower surface of the movable sealing screen plate 26; the lower surface of the movable sealing screen plate 26 is provided with an arc-shaped convex plate 16 matched with the rubber soft bristles 17; when in work, because the gas in the bulk box 1 spirally upwards takes the shape of vortex, part of mixed fibers are adhered to the bottom surface of the movable sealing screen 26 under the action of the airflow, the mixed fibers at the bottom of the movable sealing screen 26 are not easy to fall off when the movable sealing screen 26 is opened, and therefore remains inside the bulk bin 1, since the mobile sealing screen 26 passes the limit plate 15 when it is opened, while the soft rubber bristles 17 on the retainer plate 15 can gather the mixed fibers at the bottom of the movable sealing net plate 26 away from the mounting plate 18, when the soft rubber bristles 17 pass over the arc-shaped protruding plate 16 at the bottom of the movable sealing net plate 26, the soft rubber bristles 17 will scatter the mixed fibers at the bottom of the movable sealing net plate 26 under the action of the arc-shaped convex plate 16, and then the mixture can enter the mixing box 5 through the material conveying pipe 3 under the action of bottom air force to be mixed with the mixed liquid B.
The specific working process of the invention is as follows:
when the device works, polyethylene oxide is added into the solution A obtained in S1 to obtain a mixed solution B, the mixed solution B flows through the inside of the mixing box 5 and keeps a certain liquid level, at the moment, the mixed fibers are added into the bulk material box 1 from the feed opening 6, at the moment, the air inlet pipe 13 is opened, part of air blown out from the air inlet pipe 13 enters between the bottom of the bulk material box 1 and the fixed disc 12 and then is blown out through the air outlet holes 11 in the fixed disc 12, the air blown out from the air outlet holes 11 forms a vortex disturbance state in the bulk material box 1, so that the mixed fibers in the bulk material box 1 are uniformly distributed in the bulk material box 1, and the wind power blown out from different air outlet holes 11 is unequal in size due to unequal diameters of the air outlet holes 11, so that the mixed fibers can be suspended at different positions in the bulk material box 1 and are more uniformly dispersed; the other part of the air blown out from the air inlet pipe 13 enters the inside of the air cylinder 9, along with the accumulation of the air in the air cylinder 9, the air can push the piston plate 20 in the air cylinder 9 to move upwards, when the piston plate 20 passes through the air outlet pipe 10 on the air cylinder 9, the air can be sprayed out from the air outlet pipe 10 at the moment, meanwhile, the electric contact 22 on the piston plate 20 can be contacted with the electromagnet 24 so as to be in circuit connection, the electromagnet 24 recovers magnetism, at the moment, the electromagnet 24 can attract the iron movable rod 25 so as to enable the free end of the iron movable rod 25 to swing downwards, thereby pulling the tension rope 7, the tension rope 7 drives the movable sealing screen plate 26 to move towards the direction of the mounting plate 18, thereby opening the discharge port 14, because the air is sprayed out from the air outlet pipe 10 at the same time, the air flow at the bottom of the bulk material box 1 is, under the action of the flow of the atmospheric gas, the mixed fiber part in the bulk material box 1 enters the upper part of a mixing box 5 through a material conveying pipe 3, and the mixed fiber is uniformly sprayed on the surface of the mixed liquid B; when the gas in the cylinder 9 is sprayed out from the gas outlet pipe 10, the internal pressure of the cylinder is reduced, when the pushing force of the gas on the piston plate 20 is smaller than the pulling force of a spring on the piston plate 20, at the moment, the piston plate 20 moves towards the lower part of the cylinder 9, at the moment, the circuit of the electric contact 22 and the electromagnet 24 is disconnected, the electromagnet 24 does not attract the iron movable rod 25 any more, at the moment, the iron movable rod 25 bounces off again under the action of the torsion spring, so that the pulling force of the pulling rope 7 on the movable sealing screen plate 26 is not provided, the movable sealing screen plate 26 seals the discharge hole 14 again under the action of the spring, and at the moment, the gas is not fed into the mixing; gas in cylinder 9 accumulates the certain degree once more for piston plate 20 is when outlet duct 10, reinforced in 5 to the mixing box this moment once more, just so, mix the inside of continuous process mixing box 5 of liquid B, and bulk cargo device intermittent type sprays mixing fiber to the surface of the mixed liquid B in 5 mixing box, makes mixing fiber can be fine evenly scatter in the inside of mixing liquid B, and need not to use agitating unit, and not only energy-conservation and mixing effect are good.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A water-based auxiliary agent for synthetic leather is characterized in that: the feed is prepared from the following raw materials in parts by weight:
10-15 parts of polyvinylpyrrolidone, 5-7 parts of polyvinyl alcohol resin, 4-6 parts of phospholipid molecular solution, 2-3 parts of far infrared ceramic powder, 5-10 parts of polytetrafluoroethylene emulsion, 1-2 parts of polyethylene oxide, 2-3 parts of poly-1-butylene, 1-2 parts of mixed fiber and 60-100 parts of water.
2. The aqueous auxiliary agent for synthetic leather according to claim 1, wherein: the mixed fiber is formed by blending sepiolite fiber and glass fiber.
3. An aqueous adjuvant method for synthetic leather according to claim 1, wherein: the phospholipid molecular solution is prepared by adding water into phospholipid powder, stirring at 70-90 deg.C for 30min, hydrating phospholipid into colloidal precipitate, centrifuging continuously to obtain hydrated phospholipid, and decolorizing with hydrogen peroxide; then drying under reduced pressure at 90-100 ℃ and 2.13-8.00 kPa to obtain liquid phospholipid, and mixing the liquid phospholipid with ZnCl2Mixing to obtain phospholipid-ZnCl2Extracting the mixture with acetone to remove impurities, drying the precipitate after removing impurities to obtain phospholipid powder with the purity of 99.1%, and finally sieving the obtained phospholipid powder with a 200-mesh sieve.
4. A preparation method of a water-based auxiliary agent for synthetic leather is characterized by comprising the following steps: the method is applicable to the aqueous auxiliary agent of the synthetic leather of any one of claims 1 to 3, and the preparation method comprises the following steps:
s1, adding polyvinylpyrrolidone and polyvinyl alcohol resin into water at the temperature of 80-90 ℃ for dissolving, heating to a reflux state at the speed of 5 ℃/min, and preserving heat for 5-10 min; adding phospholipid molecular solution and far infrared ceramic powder, mixing and stirring uniformly, and keeping the temperature to obtain solution A;
s2, adding polyethylene oxide into the solution A obtained in the step S1 to obtain a mixed solution B, enabling the mixed solution B to flow through a mixing box, then adding mixed fibers into the bulk cargo device, and intermittently adding the mixed fibers to the surface of the mixed solution B from the top of the mixing box through airflow, so that the mixed solution B and the mixed fibers are uniformly mixed to obtain a mixed solution C;
s3, adding the polytetrafluoroethylene emulsion and the poly-1-butene into the mixed solution C obtained in the step S2, introducing the mixed solution C into a stirrer for stirring, simultaneously heating the mixed solution C to 65-85 ℃ at the speed of 10 ℃/min, preserving the temperature for 10-15min, naturally cooling to room temperature, sending into a low-temperature dryer, drying the obtained solid, and grinding the obtained solid into micro powder by a grinder;
the material scattering device in the S3 comprises a material scattering box (1), a material conveying pipe (3), an air cylinder (9), a fixed disc (12) and an air inlet pipe (13); the bulk box (1) is of a cylindrical structure; the top of the bulk material box (1) is designed to be spherical shell; a sealing plug is arranged in a feeding port (6) on the wall of the bulk material box (1); a fixed disc (12) is fixedly arranged on the inner wall of the bulk material box (1) close to the bottom; the fixed disc (12) is uniformly provided with air outlet holes (11); the air outlet holes (11) are inclined towards the anticlockwise direction, and the diameters of the two adjacent groups of air outlet holes (11) are different in size; a cylinder (9) is fixedly arranged at the central position of the fixed disc (12); the bottom of the cylinder (9) and the bottom of the bulk material box (1) are respectively communicated with two branches of the air inlet pipe (13); a piston plate (20) is arranged on the inner wall of the bottom of the cylinder (9) through a spring; a baffle ring (19) is fixedly arranged at the position, close to the top end, of the inner wall of the cylinder (9); an air outlet pipe (10) is arranged between the baffle ring (19) and the piston plate (20) on the cylinder (9); the air outlet pipe (10) is of an L-shaped structure, and the air outlet pipes (10) are arranged at the edge of the air cylinder (9) in an equidistant annular mode; the edge of the piston plate (20) is provided with a columnar groove body (21); an electric contact (22) is arranged in the columnar groove body (21) through a spring; an electromagnet (24) corresponding to the electric contact (22) is arranged between the air outlet pipe (10) and the baffle ring (19) on the cylinder (9); the top end of the outer wall of the air cylinder (9) is movably hinged with an iron movable rod (25) through a torsion spring; the iron movable rod (25) forms an included angle with the outer wall of the air cylinder (9) under the action of the torsion spring; the free end of the iron movable rod (25) is fixedly connected with one end of the tension rope (7); the other end of the tension rope (7) penetrates through a threading groove in the inner wall of the bulk material box (1) and is fixedly connected with one end of the movable sealing screen plate (26); one end of the movable sealing screen plate (26) fixedly connected with the tension rope (7) is fixedly connected with the mounting plate (18) through a spring; the tension rope (7) passes through a threading hole on the mounting plate (18); the mounting plate (18) is fixed on the inner wall of the top of the bulk material box (1); the top of the bulk material box (1) is provided with a discharge hole (14); the movable sealing net plate (26) is positioned right below the discharge hole (14); limiting plates (15) are fixedly arranged on the inner wall of the top of the bulk material box (1) and positioned on two sides of the discharge hole (14); the limiting plate (15) is of a U-shaped structure; the top of the discharge hole (14) is communicated with one end of the feed delivery pipe (3); the other end of the material conveying pipe (3) extends into the mixing box (5), and the end part of the material conveying pipe (3) is fixedly connected with the material scattering spray head (4).
5. The preparation method of the aqueous auxiliary agent for synthetic leather according to claim 4, wherein the aqueous auxiliary agent comprises the following components: an elastic rubber net (23) is fixedly arranged on the upper surface of the fixed disc (12); the edge of the elastic rubber net (23) is fixedly connected to the inner wall of the bulk material box (1); the upper surface of the elastic rubber net (23) is uniformly and fixedly provided with a flexible belt (8).
6. The preparation method of the aqueous auxiliary agent for synthetic leather according to claim 4, wherein the aqueous auxiliary agent comprises the following components: the inner wall of the group of limiting plates (15) close to the mounting plate (18) is fixedly provided with soft rubber bristles (17); the soft rubber bristles (17) are in mutual contact with the lower surface of the movable sealing screen plate (26); the lower surface of the movable sealing screen plate (26) is provided with an arc-shaped convex plate (16) matched with the rubber soft brush hair (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010549030.3A CN111636214A (en) | 2020-06-16 | 2020-06-16 | Water-based auxiliary agent for synthetic leather and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010549030.3A CN111636214A (en) | 2020-06-16 | 2020-06-16 | Water-based auxiliary agent for synthetic leather and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844194A (en) * | 2021-01-22 | 2021-05-28 | 高升平 | Preparation method of livestock feed |
| CN113057005A (en) * | 2021-05-07 | 2021-07-02 | 安徽迪万科技有限公司 | Paddy field is with irritating row system along with fertilize |
| CN116617933A (en) * | 2023-07-18 | 2023-08-22 | 南通铂润新能源科技有限公司 | Mixing arrangement is used in essence spices production |
-
2020
- 2020-06-16 CN CN202010549030.3A patent/CN111636214A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844194A (en) * | 2021-01-22 | 2021-05-28 | 高升平 | Preparation method of livestock feed |
| CN112844194B (en) * | 2021-01-22 | 2022-09-09 | 济宁瑞丰饲料有限公司 | Preparation method of livestock feed |
| CN113057005A (en) * | 2021-05-07 | 2021-07-02 | 安徽迪万科技有限公司 | Paddy field is with irritating row system along with fertilize |
| CN113057005B (en) * | 2021-05-07 | 2021-11-19 | 安徽迪万科技有限公司 | Paddy field is with irritating row system along with fertilize |
| CN116617933A (en) * | 2023-07-18 | 2023-08-22 | 南通铂润新能源科技有限公司 | Mixing arrangement is used in essence spices production |
| CN116617933B (en) * | 2023-07-18 | 2023-11-14 | 南通铂润新能源科技有限公司 | Mixing arrangement is used in essence spices production |
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