CN113957711A - Preparation method of composite fluoride-free waterproof agent for textile fabric - Google Patents
Preparation method of composite fluoride-free waterproof agent for textile fabric Download PDFInfo
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- CN113957711A CN113957711A CN202111389511.3A CN202111389511A CN113957711A CN 113957711 A CN113957711 A CN 113957711A CN 202111389511 A CN202111389511 A CN 202111389511A CN 113957711 A CN113957711 A CN 113957711A
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- free waterproof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/2246—Esters of unsaturated carboxylic acids
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/395—Isocyanates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/425—Carbamic or thiocarbamic acids or derivatives thereof, e.g. urethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a preparation method of a composite fluorine-free waterproof agent for textile fabric, which comprises the following steps: s1, adding stearyl (meth) acrylate, glycidyl methacrylate, inorganic silicon dioxide, a surfactant, an organic solvent and water into a stirring device, and stirring and mixing to obtain a solution A; s2, sequentially adding diisocyanate and saturated fatty acid into the stirring device to dissolve the diisocyanate and the saturated fatty acid in the organic solvent to obtain a solution B; s3, heating the inner side of the stirring device to 90-98 ℃, then adding a reaction auxiliary agent accounting for 0.3-0.45% of the mass of the solution B, and reacting for a period of time to obtain a fluorine-free waterproof solution; s4, adding an enhancer solution with the mass of 4-5% of that of the fluorine-free waterproof solution into the fluorine-free waterproof solution, mixing and stirring, and then removing the solvent in vacuum to obtain the fluorine-free waterproof agent.
Description
Technical Field
The invention relates to the technical field of textile processing materials, in particular to a preparation method of a composite fluoride-free waterproof agent for textile fabrics.
Background
With the increasing level of domestic water and fire fighting, the requirements of people on various living are gradually increased. Especially in the aspect of clothing, the basic functions of shielding, comfort, heat preservation and the like are required, and along with further economic development and continuous progress of science and technology, functional clothing is gradually valued, such as fire-proof clothing of firemen, oil-and water-resistant clothing of oil field workers, space clothing of astronauts and the like, and the functions of water resistance, oil resistance, ultraviolet resistance, electromagnetic wave resistance and the like of the clothing are widely concerned by people. The fabric with excellent waterproof function is favored by people, and through the development of decades, the fabric has developed from the fabric with only waterproof single function in the early stage to the waterproof moisture permeable fabric integrating two characteristics into a whole. The waterproof moisture-permeable fabric integrates waterproofness and moisture permeability, can resist the infiltration of external water drops, can diffuse sweat generated by a human body to the outside, plays the functions of keeping out cold and warm, shielding wind and rain, and prevents the human body from uncomfortable.
The existing fluorine-free waterproof agent is generally prepared by adopting a mixing device so as to improve the preparation effect of the fluorine-free waterproof agent, but the existing mixing device only needs to be simply stirred when in use, and the added materials need to be manually added, so that the working efficiency is low.
Disclosure of Invention
The invention aims to provide a preparation method of a composite fluorine-free waterproof agent for textile fabric, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation method of a composite fluoride-free waterproof agent for textile fabric comprises the following steps:
s1, adding stearyl (meth) acrylate, glycidyl methacrylate, inorganic silicon dioxide, a surfactant, an organic solvent and water into a stirring device, and stirring and mixing to obtain a solution A;
s2, sequentially adding diisocyanate and saturated fatty acid into the stirring device to dissolve the diisocyanate and the saturated fatty acid in the organic solvent to obtain a solution B;
s3, heating the inner side of the stirring device to 90-98 ℃, then adding a reaction auxiliary agent accounting for 0.3-0.45% of the mass of the solution B, and reacting for a period of time to obtain a fluorine-free waterproof solution;
s4, adding an enhancer solution with the mass of 4-5% of that of the fluorine-free waterproof solution into the fluorine-free waterproof solution, mixing and stirring, and then removing the solvent in vacuum to obtain the fluorine-free waterproof agent.
As a further scheme of the invention: the stirring device includes:
the mixing box comprises a bottom plate and a mixing box arranged on the bottom plate;
the transmission box is detachably arranged on the mixing box, a motor is arranged on the transmission box, and an output shaft of the motor is connected with a stirring assembly arranged in the transmission box;
the hoppers are equidistantly arranged on the transmission box and are communicated with a feeding hole arranged on the transmission box through a guide pipe, and a press switch is arranged in the feeding hole;
the feeding device is characterized by further comprising a ring-shaped piece which is rotatably installed in the transmission box through an annular connecting plate, wherein an extrusion block matched with the press switch is fixed on the ring-shaped piece, the extrusion block is used for extruding the press switch to move when contacting with the press switch so as to enable the feeding hole to be conducted, annular teeth are arranged on the inner side of the ring-shaped piece, the annular teeth are meshed with a driven gear which is rotatably installed in the transmission box, and the driven gear is meshed with a driving gear which is fixed on an output shaft of the motor.
As a still further scheme of the invention: the both sides of mixing box articulate respectively has two at least support frames, the support frame is kept away from the one end of mixing box with the bottom plate is articulated.
As a still further scheme of the invention: at least four connecting groove rods are fixed on the mixing box, and connecting insertion rods which are fixedly connected with the connecting groove rods in an inserting mode are fixed on the transmission box.
As a still further scheme of the invention: the stirring subassembly includes:
the stirring shaft is rotatably arranged at the bottom of the mixing box and is fixedly connected with the output shaft of the motor, and a plurality of groups of stirring rods are fixed on the stirring shaft;
the stirring mechanism is characterized by further comprising two stirring pieces which are arranged on the inner side of the mixing box in a sliding mode, wherein the stirring pieces are connected with the stirring shaft, and the stirring pieces move in the same direction under the action of the stirring shaft.
As a still further scheme of the invention: the toggle piece comprises:
the mixing box comprises a first stirring plate and a second stirring plate hinged with the first stirring plate, wherein one end of the first stirring plate, which is far away from the second stirring plate, is installed on the inner wall of the mixing box in a sliding mode and can rotate in the sliding process;
the second stirring plate is connected with at least one guide rod fixed in the mixing box in a sliding mode, a connecting rod is fixed on the second stirring plate, and one end, far away from the second stirring plate, of the connecting rod is connected with an eccentric wheel fixed on the stirring shaft in a rotating mode.
As a still further scheme of the invention: the press switch comprises a limiting block fixed in the feeding hole and a movable head which penetrates through the limiting block and is in sliding fit with the limiting block, and the movable head is connected with the elastic piece;
the movable head is provided with a baffle, when the feed port is in a blocking state, the baffle is abutted to the limiting block, the side end of the movable head is provided with a plurality of through holes, and when the feed port is in a conducting state, the through holes on the movable head are submerged into the feed port.
As a still further scheme of the invention: the elastic component include with activity head fixed connection's movable block, the movable block orientation one side of transmission case inner wall through the spring with the inner wall connection of transmission case.
Compared with the prior art, the invention has the beneficial effects that: the automatic feeding device is novel in design, the arranged motor drives the stirring assembly to move when working so as to achieve stirring work of a solution in the mixing box, meanwhile, the ring-shaped piece is driven to rotate under the action of the driving gear and the driven gear, the extrusion block on the ring-shaped piece is driven to rotate when the ring-shaped piece rotates, when the extrusion block rotates to the pressing switch at one hopper, raw materials in the hopper enter the mixing box so as to achieve automatic feeding of the raw materials, and meanwhile, when the ring-shaped piece continuously rotates, sequential feeding of various raw materials is achieved, the automatic feeding device is high in automation degree, and the practicability is high.
Drawings
FIG. 1 is a schematic structural diagram of a preparation method of a composite fluorine-free waterproof agent for textile fabrics.
FIG. 2 is an isometric view of a method of making a composite fluorine-free water repellant for textile fabrics.
FIG. 3 is a semi-sectional view of a method for preparing the composite fluorine-free waterproof agent for textile fabrics.
Fig. 4 is an enlarged view of a structure at a in fig. 3.
FIG. 5 is a schematic structural diagram of a transmission case in the preparation method of the composite fluorine-free waterproof agent for textile fabrics.
FIG. 6 is a schematic structural diagram of another angle of a transmission case in the preparation method of the composite fluorine-free waterproof agent for textile fabric.
FIG. 7 is a half-sectional view of the internal structure of a transmission case in the preparation method of the composite fluorine-free waterproof agent for textile fabric.
Fig. 8 is an enlarged view of the structure at B in fig. 7.
In the figure: 1-bottom plate, 2-support frame, 3-mixing box, 4-transmission box, 5-hopper, 6-motor, 7-guide pipe, 8-connecting groove rod, 9-connecting inserted rod, 10-stirring shaft, 11-stirring rod, 12-first stirring plate, 13-second stirring plate, 14-eccentric wheel, 15-guide rod, 16-connecting rod, 17-annular piece, 18-driving gear, 19-driven gear, 20-extrusion block, 21-annular connecting plate, 22-movable block, 23-spring, 24-movable head, 25-limiting block and 26-through hole.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
In the embodiment of the invention, a preparation method of a composite fluorine-free waterproof agent for textile fabric comprises the following steps:
s1, adding stearyl (meth) acrylate, glycidyl methacrylate, inorganic silicon dioxide, a surfactant, an organic solvent and water into a stirring device, and stirring and mixing to obtain a solution A;
s2, sequentially adding diisocyanate and saturated fatty acid into the stirring device to dissolve the diisocyanate and the saturated fatty acid in the organic solvent to obtain a solution B;
s3, heating the inner side of the stirring device to 90-98 ℃, then adding a reaction auxiliary agent accounting for 0.3-0.45% of the mass of the solution B, and reacting for a period of time to obtain a fluorine-free waterproof solution;
s4, adding an enhancer solution with the mass of 4-5% of that of the fluorine-free waterproof solution into the fluorine-free waterproof solution, mixing and stirring, and then removing the solvent in vacuum to obtain the fluorine-free waterproof agent.
Referring to fig. 1 to 8, the stirring device includes: a bottom plate 1 and a mixing box 3 mounted on the bottom plate 1;
the transmission case 4 is detachably mounted on the mixing case 3, a motor 6 is mounted on the transmission case 4, and an output shaft of the motor 6 is connected with a stirring assembly arranged in the transmission case 4;
the hoppers 5 are equidistantly arranged on the transmission case 4 and are communicated with a feeding hole arranged on the transmission case 4 through a guide pipe 7, and a press switch is arranged in the feeding hole;
the feeding device is characterized by further comprising a ring-shaped element 17 which is rotatably installed in the transmission case 4 through an annular connecting plate 21, wherein an extrusion block 20 matched with a push switch is fixed on the ring-shaped element 17, when the extrusion block 20 is contacted with the push switch, the push switch is extruded to move so as to conduct the feeding hole, annular teeth are arranged on the inner side of the ring-shaped element 17, the annular teeth are meshed with a driven gear 19 which is rotatably installed in the transmission case 4, and the driven gear 19 is meshed with a driving gear 18 which is fixed on an output shaft of the motor 6.
In the embodiment of the invention, water is placed in the mixing box 3, then other raw materials are placed in different hoppers 5, the arranged motor 6 drives the stirring assembly to move when working so as to realize the stirring work of the solution in the mixing box 3, meanwhile, the ring-shaped piece 17 is driven to rotate under the action of the driving gear 18 and the driven gear 19, the extrusion block 20 on the ring-shaped piece 17 is driven to rotate when the ring-shaped piece 17 rotates, when the extrusion block 20 rotates to the pressing switch at one hopper 5, the raw materials in the hopper 5 enter the mixing box 3 so as to realize the automatic addition of the raw materials, and meanwhile, when the ring-shaped piece 17 continuously rotates, the sequential addition of various raw materials is realized, the automation degree is high, and the practicability is strong.
It should be noted that the transmission ratio of the driving gear 18 to the driven gear 19 is 1:2, and the transmission ratio of the driven gear 19 to the annular gear is 1:4, so that the annular member 17 rotates slowly when the motor 6 operates.
As another embodiment of the present invention, two sides of the mixing box 3 are respectively hinged with at least two supporting frames 2, and one end of each supporting frame 2 far away from the mixing box 3 is hinged with the bottom plate 1.
Can effectively ensure the stability that mixing box 3 placed through the support frame 2 that sets up, wherein, support frame 2 conveniently demolishs with the articulated position of bottom plate 1, arrange in extract the round pin axle can, make things convenient for taking off of mixing box 3.
At least four connecting groove rods 8 are fixed on the mixing box 3, and connecting insertion rods 9 which are fixedly connected with the connecting groove rods 8 in an inserting mode are fixed on the transmission box 4.
In the embodiment of the invention, the transmission case 4 and the mixing case 3 can be connected only by directly placing through the arranged connecting inserted rod 9 and the connecting slot rod 8, and the transmission case 4 is convenient to take and place.
As still another embodiment of the present invention, the stirring assembly includes:
the stirring shaft 10 is rotatably arranged at the bottom of the mixing box 3 and is fixedly connected with an output shaft of the motor 6, and a plurality of groups of stirring rods 11 are fixed on the stirring shaft 10;
the stirring device is characterized by further comprising two stirring pieces which are arranged on the inner side of the mixing box 3 in a sliding mode, wherein the stirring pieces are connected with the stirring shaft 10, and the stirring pieces move in the same direction under the action of the stirring shaft 10.
The motor 6 during operation that sets up drives (mixing) shaft 10 and rotates to drive multiunit stirring rod 11 and rotate, stir the mixed liquid in the mixing box 3 with the realization, still drive two simultaneously and dial the motion of piece, in order to improve the turbulent effect of the solution in the mixing box 3, in order to improve mixing efficiency.
Specifically, the toggle member includes:
a first toggle plate 12 and a second toggle plate 13 hinged with the first toggle plate 12, wherein one end of the first toggle plate 12, which is far away from the second toggle plate 13, is slidably mounted on the inner wall of the mixing box 3 and can rotate in the sliding process;
the second toggle plate 13 is slidably connected to at least one guide rod 15 fixed in the mixing box 3, a connecting rod 16 is fixed to the second toggle plate 13, and one end of the connecting rod 16, which is far away from the second toggle plate 13, is rotatably connected to an eccentric wheel 14 fixed to the stirring shaft 10.
When the stirring shaft 10 rotates, the eccentric wheel 14 is driven to rotate, so that the two second stirring plates 13 are driven to move in the same direction through the two connecting rods 16 which are rotatably connected with the eccentric wheel 14, the first stirring plate 12 is driven to move along when the second stirring plates 13 move horizontally, the inclination angle is changed along with the change of the inclination angle, and when the inclination angle of the first stirring plate 12 is changed, the mixed liquid is extruded and stirred, so that the mixing effect is further improved.
As another embodiment of the present invention, the push switch includes a limit block 25 fixed in the feed hole and a movable head 24 penetrating the limit block 25 and slidably engaged with the limit block 25, and the movable head 24 is connected to the elastic member;
the movable head 24 is provided with a baffle, when the feed port is in a blocking state, the baffle is abutted to the limiting block 25, the side end of the movable head 24 is provided with a plurality of through holes 26, and when the feed port is in a conducting state, the through holes 26 on the movable head 24 are immersed into the feed port.
When the elastic member receives the extrusion force, take place to remove to drive activity head 24 and remove, when activity head 24 removed, the through-hole 26 that sets up on it entered into the side of stopper 25, made the inboard of activity head 24 through the inboard intercommunication of through-hole 26 with the feed port, and then made the feed port switch on, wherein, need explain, when the feed port was in the shutoff state, through-hole 26 was in the inboard of stopper 25, realized the shutoff of through-hole 26.
The elastic part comprises a movable block 22 fixedly connected with the movable head 24, and one side, facing the inner wall of the transmission case 4, of the movable block 22 is connected with the inner wall of the transmission case 4 through a spring 23.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A preparation method of a composite fluoride-free waterproof agent for textile fabric is characterized by comprising the following steps:
s1, adding stearyl (meth) acrylate, glycidyl methacrylate, inorganic silicon dioxide, a surfactant, an organic solvent and water into a stirring device, and stirring and mixing to obtain a solution A;
s2, sequentially adding diisocyanate and saturated fatty acid into the stirring device to dissolve the diisocyanate and the saturated fatty acid in the organic solvent to obtain a solution B;
s3, heating the inner side of the stirring device to 90-98 ℃, then adding a reaction auxiliary agent accounting for 0.3-0.45% of the mass of the solution B, and reacting for a period of time to obtain a fluorine-free waterproof solution;
s4, adding an enhancer solution with the mass of 4-5% of that of the fluorine-free waterproof solution into the fluorine-free waterproof solution, mixing and stirring, and then removing the solvent in vacuum to obtain the fluorine-free waterproof agent.
2. The preparation method of the composite fluorine-free waterproof agent for the textile fabric as claimed in claim 1, wherein the stirring device comprises:
a bottom plate (1) and a mixing box (3) mounted on the bottom plate (1);
the transmission box (4) is detachably mounted on the mixing box (3), a motor (6) is mounted on the transmission box (4), and an output shaft of the motor (6) is connected with a stirring assembly arranged in the transmission box (4);
the hoppers (5) are equidistantly arranged on the transmission box (4) and are communicated with a feeding hole arranged on the transmission box (4) through a guide pipe (7), and a press switch is arranged in the feeding hole;
the feeding device is characterized by further comprising a ring-shaped element (17) rotatably mounted in the transmission case (4) through an annular connecting plate (21), wherein an extrusion block (20) matched with a press switch is fixed on the ring-shaped element (17), the extrusion block (20) extrudes the press switch to move when contacting with the press switch so as to enable the feeding hole to be conducted, annular teeth are arranged on the inner side of the ring-shaped element (17), the annular teeth are meshed with a driven gear (19) rotatably mounted in the transmission case (4), and the driven gear (19) is meshed with a driving gear (18) fixed on an output shaft of the motor (6).
3. The preparation method of the composite fluorine-free waterproof agent for the textile fabric is characterized in that two sides of the mixing box (3) are respectively hinged with at least two supporting frames (2), and one end, far away from the mixing box (3), of each supporting frame (2) is hinged with the bottom plate (1).
4. The preparation method of the composite fluorine-free waterproof agent for the textile fabric according to claim 2, wherein at least four connecting grooved rods (8) are fixed on the mixing box (3), and connecting inserted rods (9) which are fixedly inserted with the connecting grooved rods (8) are fixed on the transmission box (4).
5. The preparation method of the composite fluorine-free waterproof agent for the textile fabric as claimed in claim 2, wherein the stirring assembly comprises:
the stirring shaft (10) is rotatably arranged at the bottom of the mixing box (3) and is fixedly connected with an output shaft of the motor (6), and a plurality of groups of stirring rods (11) are fixed on the stirring shaft (10);
the stirring device is characterized by further comprising two stirring pieces which are arranged on the inner side of the mixing box (3) in a sliding mode, wherein the stirring pieces are connected with the stirring shaft (10), and the two stirring pieces move in the same direction under the action of the stirring shaft (10).
6. The method for preparing the composite fluorine-free waterproof agent for the textile fabric according to claim 5, wherein the stirring piece comprises:
the mixing box comprises a first stirring plate (12) and a second stirring plate (13) hinged with the first stirring plate, wherein one end, far away from the second stirring plate (13), of the first stirring plate (12) is installed on the inner wall of the mixing box (3) in a sliding mode and can rotate in the sliding process;
the second stirring plate (13) is in sliding connection with at least one guide rod (15) fixed in the mixing box (3), a connecting rod (16) is fixed on the second stirring plate (13), and one end, far away from the second stirring plate (13), of the connecting rod (16) is rotatably connected with an eccentric wheel (14) fixed on the stirring shaft (10).
7. The preparation method of the composite fluorine-free waterproof agent for the textile fabric according to claim 2, wherein the press switch comprises a limit block (25) fixed in the feeding hole and a movable head (24) which penetrates through the limit block (25) and is in sliding fit with the limit block (25), and the movable head (24) is connected with an elastic piece;
the movable head (24) is provided with a baffle, when the feed port is in a blocking state, the baffle is abutted to the limiting block (25), the side end of the movable head (24) is provided with a plurality of through holes (26), and when the feed port is in a conducting state, the through holes (26) on the movable head (24) are submerged into the feed port.
8. The preparation method of the composite fluorine-free waterproof agent for the textile fabric is characterized in that the elastic element comprises a movable block (22) fixedly connected with the movable head (24), and one side of the movable block (22) facing the inner wall of the transmission case (4) is connected with the inner wall of the transmission case (4) through a spring (23).
Priority Applications (1)
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