Water spinning device based on microfluidic platform

Abstract

The utility model discloses a water spinning device based on a microfluidic platform. The water spinning device comprises a spinning solution injector, a polytetrafluoroethylene tube, a dispensing needle head, a spinning glass sheet, an outer-layer capillary glass tube, an inner-layer capillary glass tube, a water spinning tank, a constant-temperature water tank and a collection driving assembly, the spinning solution injector is connected with the dispensing needle head through the polytetrafluoroethylene tube, and the dispensing needle head is connected with inlets of the outer-layer capillary glass tube and the inner-layer capillary glass tube and is fixed on the spinning glass sheet through an adhesive; the spinning glass sheet is fixed at the bottom of one end of the hydrospinning tank; the water spinning tank is placed in the constant-temperature water tank; and the collection driving assembly is used for collecting fibers which flow out of the inner-layer capillary glass tube and are formed in the water spinning tank. According to the utility model, by adjusting the composition and temperature of the coagulating bath, the coagulating speed and the fiber structure are changed in a wide range, so that the required fiber performance is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of the preparation of functional fiber materials, in particular to a hydrospinning device based on a microfluidic platform. Background Art

[0002] With the continuous progress of fiber manufacturing technology, traditional fiber materials can no longer meet people's requirements for high performance and multi-function. As a new type of fiber material, hydrospun fiber has become a current research hotspot due to its characteristics such as controllability, simple preparation process, and diverse functions. The application of hydrospun fiber in the textile field mainly involves the development of functional textiles. Textiles based on hydrospun fiber can achieve excellent mechanical properties, antibacterial, ultraviolet protection, heat storage and other functional characteristics. Hydrospun fiber can also achieve excellent thermal insulation performance and good air permeability, and can be used to manufacture textiles with high comfort. In addition, hydrospun fiber also has extensive applications in intelligent textiles, such as temperature-sensitive textiles, color-changing textiles, etc. Hydrospun fiber has its unique advantages because of its simple preparation method, can continuously prepare single long fibers, and the fiber function can be adjusted according to the preparation process technology, and has received great attention.

[0003] At present, the fibers used for knitting textiles mainly have disadvantages such as poor mechanical properties, single function, and poor heat preservation effect, and cannot meet people's increasing requirements for textiles. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a hydrospinning device based on a microfluidic platform, which can continuously prepare core-shell structure and hollow capsule structure fibers, and by adjusting the composition and temperature of the coagulation bath, change the coagulation rate and fiber structure within a wide range, so as to obtain the required fiber properties.

[0005] The purpose of the utility model is realized as follows: A hydrospinning device based on a microfluidic platform includes a spinning solution syringe, a polytetrafluoroethylene tube, a dispensing needle, a spinning glass sheet, an outer capillary glass tube, an inner capillary glass tube, a hydrospinning tank, a constant temperature water tank, and a collection driving assembly; the spinning solution syringe is connected to the dispensing needle through the polytetrafluoroethylene tube, the dispensing needle is connected to the inlets of the outer capillary glass tube and the inner capillary glass tube, and is fixed on the spinning glass sheet through an adhesive; the spinning glass sheet is fixed at the bottom of one end of the hydrospinning tank; the hydrospinning tank is placed in the constant temperature water tank; the collection driving assembly is used to collect the fibers flowing out from the inner capillary glass tube and formed in the hydrospinning tank.

[0006] The utility model adopts the above technical solutions. Compared with the prior art, the beneficial effects are as follows: The device of the utility model can effectively control the structure formation process of fibers. By adjusting the composition and temperature of the coagulation bath, the coagulation rate and fiber structure can be changed within a wide range, so as to obtain the required fiber properties. It can produce functional fiber materials with high strength, softness and elasticity. Through this device, the production speed can be increased, the surface density of the product can be reduced, and the structure of the product can be made uniform and fine, which is suitable for the production of medical and hygienic materials, lining cloth and industrial functional materials.

[0007] In order to collect fibers, the collection drive assembly includes a collection rod, a rotating motor and a reciprocating platform; one end of the collection rod is connected to the rotating motor, and the rotating motor is arranged on the reciprocating platform.

[0008] In order to effectively dry the fibers, an infrared heating lamp is further included. The infrared heating lamp is arranged on one side of the collection drive assembly. The base of the infrared heating lamp is a desktop rotary dimming base, the bulb wattage is 250W, and the temperature adjustment range is 0-115°C.

[0009] Further, the inner capillary glass tube and the outer capillary glass tube are concentrically placed.

[0010] In order to keep the water spinning tank at a constant temperature, a circulating water inlet and outlet are arranged on the constant temperature water tank.

[0011] Further, the binder is glue. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the utility model.

[0013] Figure 2 It is a sectional view of the microfluidic platform of the utility model.

[0014] Wherein, 1 is a spinning solution syringe, 2 is a polytetrafluoroethylene tube, 3 is a dispensing needle, 4 is a spinning glass sheet, 5 is an outer capillary glass tube, 6 is an inner capillary glass tube, 7 is a water spinning tank, 8 is a constant temperature water tank, 9 is a collection rod, 10 is a rotating motor, 11 is a reciprocating platform, 12 is an infrared heating lamp, and 13 is a circulating water inlet and outlet. Detailed Embodiments

[0015] Such as Figure 1-2A hydrospinning device based on a microfluidic platform as shown, comprising a spinning solution syringe 1, a polytetrafluoroethylene tube 2, a dispensing needle 3, a spinning glass slide 4, an outer capillary glass tube 5, an inner capillary glass tube 6, a water spinning tank 7, a constant temperature water tank 8, a collection driving assembly and an infrared heating lamp 12; two spinning solution syringes 1 are connected to the corresponding dispensing needles 3 through the polytetrafluoroethylene tube 2, and the two dispensing needles 3 are respectively connected to the inlets of the outer capillary glass tube 5 and the inner capillary glass tube 6 and are fixed on the spinning glass slide 4 with glue; the inner capillary glass tube 6 is concentrically placed with the outer capillary glass tube 5; the spinning glass slide 4 is fixed at the bottom of one end of the water spinning tank 7; the water spinning tank 7 is placed in the constant temperature water tank 8, and a circulating water inlet and outlet 13 is provided on the constant temperature water tank 8; the collection driving assembly is used to collect the fibers formed in the water spinning tank 7 flowing out from the inner capillary glass tube 6; the collection driving assembly includes a collection rod 9, a rotating motor 10 and a reciprocating platform 11; one end of the collection rod 9 is connected to the rotating motor 10, and the rotating motor 10 is arranged on the reciprocating platform 11; the infrared heating lamp 12 is arranged on one side of the collection driving assembly, the base of the infrared heating lamp 12 is a desktop rotating dimming base, the bulb wattage is 250W, and the temperature adjustment range is 0 - 115°C.

[0016] When the present utility model works, 1) before spinning, different spinning solutions enter the dispensing needle 3 through the polytetrafluoroethylene tube 2, and then enter the outer capillary glass tube 5 and the inner capillary glass tube 6 respectively. When the spinning solution in the capillary glass tube is about to reach the outlet, the liquid feeding is stopped; deionized water is injected into the water spinning tank 7 to completely immerse the microfluidic spinning platform, and at the same time, the constant temperature water tank 8 is turned on to keep the water spinning tank 7 at the set temperature; the spinning solution is used to prepare two different spinning solutions, and the density of the outer phase solution should be greater than that of the inner phase solution to facilitate the formation of core - shell structure fibers; the spinning solution in the outer capillary glass tube 5 is a liquid polymer solution, and the spinning solution in the inner capillary glass tube 6 is air or other inert gases to facilitate the formation of hollow capsule structure fibers;

[0017] 2) The reciprocating platform 11 and the rotating motor 10 are turned on, the collection rod 9 starts to rotate and move back and forth left and right. After setting the spinning injection flow rate, the spinning process is started to prepare fibers; during the injection process, the spinning solution in the inner capillary glass tube 6 wraps the spinning solution in the outer capillary glass tube 5 and flows out from the outlet into the deionized ice - water mixture in the water spinning tank 7 to form fibers.

[0018] The present utility model is not limited to the above - mentioned embodiments. Based on the technical solutions disclosed in the present utility model, those skilled in the art can make some substitutions and deformations to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A hydrospinning device based on a microfluidic platform, characterized in that, It includes a spinning solution syringe, a polytetrafluoroethylene tube, a dispensing needle, a spinning glass sheet, an outer capillary glass tube, an inner capillary glass tube, a water spinning tank, a constant temperature water bath, and a collection driving assembly; the spinning solution syringe is connected to the dispensing needle through the polytetrafluoroethylene tube, the dispensing needle is connected to the inlets of the outer capillary glass tube and the inner capillary glass tube, and is fixed on the spinning glass sheet through an adhesive; the spinning glass sheet is fixed at the bottom of one end of the water spinning tank; the water spinning tank is placed in the constant temperature water bath; the collection driving assembly is used to collect the fibers formed in the water spinning tank flowing out from the inner capillary glass tube.

2. The water electrospinning device based on a microfluidic platform according to claim 1, characterized in that, The collection driving assembly includes a collection rod, a rotating motor, and a reciprocating platform; one end of the collection rod is connected to the rotating motor, and the rotating motor is arranged on the reciprocating platform.

3. The water electrospinning device based on a microfluidic platform according to claim 1, wherein It further includes an infrared heating lamp, the infrared heating lamp is arranged on one side of the collection driving assembly, the base of the infrared heating lamp is a desktop rotary dimming base, the wattage of the bulb is 250W, and the temperature adjustment range is 0 - 115°C.

4. A hydrospinning device based on a microfluidic platform according to claim 1, characterized in that, The inner capillary glass tube and the outer capillary glass tube are concentrically placed.

5. The water electrospinning device based on a microfluidic platform according to claim 1, characterized in that, The constant temperature water bath is provided with circulating water inlets and outlets.

6. The water electrospinning device based on a microfluidic platform according to claim 1, characterized in that, The adhesive is glue.

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