Preparation device and method of aerogel, graphene skin-friendly, breathable and warm fabric

Abstract

The application relates to a preparation device and method of aerogel, graphene skin-friendly, breathable and warm-keeping fabric, the device comprising two symmetrically arranged fixing frames, a sliding seat in sliding connection with the fixing frames, at least two telescopic members symmetrically arranged on the sliding seat, a connecting support arranged at the telescopic end of the telescopic member, and two pressing plates respectively arranged on the opposite sides of the two connecting supports. In the application, the two connecting supports and the pressing plates are pushed to move close to each other by the telescopic member, and the two connecting supports move towards each other while driving the driving assembly to operate to drive the support strips located at the positions of the convex parts of the pressing plates to the mutually symmetrical two hot pressing pieces close to the positions, and then the hot pressing pieces at the concave part positions of the two pressing plates are used to hot press and fix the support strips, the composite aerogel layer, the wrapping piece and one side of the vertical support piece together to form a middle contraction shape, so that the fabric with good mechanical properties and good air permeability is prepared.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of garment fabrics, and particularly relates to a preparation device and method of aerogel and graphene skin-friendly, breathable and warm fabric. BACKGROUND

[0002] The high porosity of graphene and aerogel means that there are more spaces inside the fabric for air circulation, thereby improving the breathability of the fabric, and because there are more pores, the conduction of heat can be isolated, and the loss of heat can be reduced, so that a better warm-keeping effect can be achieved. In the prior art, polyvinyl alcohol (PVA) is combined with graphene oxide to prepare an electrospinning solution, and then an aerogel and graphene composite layer is prepared in the middle of a skin-friendly and breathable base / inner fabric and an outer fabric by electrospinning technology. Then, in order to improve the tear resistance and anti-pilling effect of the fabric, the three-layer fabric is subjected to heat pressing and setting treatment.

[0003] However, the device for heat pressing the fabric in the prior art is generally a heat pressing roller, and the method of using the heat pressing roller is to place the fabric in a stack and then continuously heat press the stacked fabric by the heat pressing roller. However, continuous heat pressing of the fabric by the heat pressing roller will damage the pores of the aerogel and graphene composite layer. The upper and lower walls of the pores will be bonded after heat pressing, and the pores will be greatly reduced, thereby reducing the breathability of the fabric. Therefore, the present application provides a preparation device and method of aerogel and graphene skin-friendly, breathable and warm fabric to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a preparation device and method of aerogel and graphene skin-friendly, breathable and warm fabric to solve the above problems.

[0005] The present application achieves the above-mentioned purposes through the following technical solutions:

[0006] A preparation device of aerogel and graphene skin-friendly, breathable and warm fabric, comprising two symmetrically arranged fixing frames, a sliding seat in sliding connection with the fixing frames, at least two front and rear symmetrically arranged telescopic members on the sliding seat, a connecting bracket provided at the telescopic end of the telescopic member, two pressing plates respectively provided on the opposite sides of the two connecting brackets, each pressing plate opposite side is continuously and alternately connected with a concave part and a convex part, a heat pressing piece is arranged on the concave part of the pressing plate, a plurality of guide limiting members are arranged between the sliding seat and the connecting bracket, and a pulling assembly is arranged on the connecting bracket.

[0007] As a further optimization scheme of the present application, the front and rear ends of the two connecting brackets are symmetrically provided with baffles;

[0008] The toggle assembly connecting support comprises at least two front and back symmetrical limiting seats arranged on the sliding seat and penetrating through the connecting support, a moving rod in sliding connection with the limiting seats, a plurality of toggle rods arranged on the moving rod, and a protrusion arranged on the baffle, and one end of the moving rod close to the protrusion is rotationally connected with a rolling shaft.

[0009] As a further optimization scheme of the present application, the protrusions on the baffles at the front and back ends of the connecting support are arranged staggered to alternately push the moving rod during the reciprocating movement of the connecting support.

[0010] As a further optimization scheme of the present application, the sliding seat, the connecting support, the pressing plate and the moving rod are all of two-section structure in front and back symmetry, and the sliding seat, the connecting support, the pressing plate and the moving rod are fixed by mutual insertion.

[0011] As a further optimization scheme of the present application, the guide limiting piece comprises a fixed seat arranged on the sliding seat, a guide rod arranged on the fixed seat and penetrating through the connecting support, and a spring arranged between the fixed seat and the connecting support and sleeved outside the guide rod.

[0012] A method for preparing aerogel and graphene skin-friendly breathable and warm fabric by using a preparation device, the specific steps are as follows:

[0013] Step one: place the prepared inner layer and outer layer corresponding to each other, and place the prepared vertical support piece with an internal hollow between the corresponding wrapping pieces;

[0014] Step two: extend two connecting supports, a pressing plate and a hot pressing sheet into the internal hollow of the two vertically symmetrical vertical support pieces respectively, push the two connecting supports close to each other through the extension piece, at the same time, drive the toggle assembly to move to move the support strip at each protruding position of the pressing plate to the two hot pressing sheets close to each other, and fix the support strip, the composite aerogel layer, the wrapping piece and the vertical support piece on one side by the hot pressing sheet to form a middle contraction;

[0015] Step three: heat press the inner layer, the outer layer, the support layer one and the support layer two, and the vertical support piece on the other side, and sew the outer edges of the inner layer and the outer layer together to obtain the breathable and warm fabric.

[0016] As a further optimization scheme of the present application, in step two, the temperature of the hot pressing treatment is 95-110 DEG C, the hot pressing pressure is 2-4 MPa, the hot pressing times are 2-4 times, and the hot pressing time of each time is 4-6 min.

[0017] As a further optimization scheme of the present application, in step three, the temperature of the hot-pressing treatment is 145-165 DEG C, the hot-pressing pressure is 4-7 MPa, the hot-pressing times are 3-5 times, and the hot-pressing time of each time is 5-8 min.

[0018] The present application has the following advantages:

[0019] 1) In the present application, the two connecting supports and the pressing plates are pushed close to each other by the telescopic member, and the two connecting supports move towards each other while driving the actuating assembly to operate to move the support strips located at each convex portion of the pressing plate to between the two hot-pressing pieces which are symmetrical to each other, and then the hot-pressing pieces at the concave portion of the pressing plate are used to hot-press the support strips, the composite aerogel layer, the wrapping member and one side of the vertical support member together to form a middle contraction shape, so as to prepare a fabric with good mechanical properties, good tear resistance and good air permeability.

[0020] 2) In the present application, the connecting supports move towards each other to drive the baffles connected with the connecting supports to move, the moving rod and the actuating rod are pushed to move by the protrusions on the baffles, the support strips located at each convex portion of the pressing plate are moved to between the two hot-pressing pieces which are symmetrical to each other by the movement of the actuating rod, and then the support strips, the composite aerogel layer and the wrapping member which are symmetrical to each other are hot-pressed to form a funnel shape, and there is a gap between the funnel-shaped support strips, the composite aerogel layer and the wrapping member which are adjacent to each other, which makes the fabric have good air permeability. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present application (hot-pressing member in a separated state).

[0022] Figure 2 is a schematic diagram of the overall structure of the present application (hot-pressing member in a pressed state).

[0023] Figure 3 is a schematic diagram of the overall structure of the present application (hot-pressing member in a pressed state). Figure 1 is an enlarged view of the A part of the present application.

[0024] Figure 4 is a schematic diagram of the front cross section of the aerogel, graphene skin-friendly and breathable warm-keeping fabric of the present application.

[0025] Figure 5 is a schematic diagram of the cross section of the composite middle layer of the present application.

[0026] In the figure: 1, the inner layer; 2, the composite middle layer; 21, the support layer one; 22, the support layer two; 23, the support strip; 24, the composite aerogel layer; 25, the wrapping piece; 26, the vertical support piece; 3, the outer layer; 4, the fixed frame; 5, the sliding seat; 6, the fixed seat; 7, the telescopic piece; 8, the connecting support; 9, the guide rod; 10, the spring; 11, the pressing plate; 12, the hot pressing sheet; 13, the limiting seat; 14, the moving rod; 15, the pulling rod; 16, the protrusion; 17, the rolling shaft. DETAILED DESCRIPTION

[0027] The application will be further described in details below with reference to the accompanying drawings, it is necessary to point out here that the following detailed description is only used to further illustrate the application, and cannot be understood as limiting the protection scope of the application, the skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0028] I. Material

[0029] 1. The inner layer 1 in the application is a commercially available pure cotton fabric, and the outer layer 3 is a commercially available 210T spring yarn fabric.

[0030] 2. The PVA (polyvinyl alcohol) and graphene oxide in the aerogel spinning solution containing volcanic rock and graphene in the application are in a mass ratio of 10:1.

[0031] The method used in this embodiment is known to those skilled in the art, and is a conventional method, and the reagents and other materials used are commercially available products unless otherwise specified.

[0032] II. Method

[0033] As shown in Figures 1-3 , a preparation device of an aerogel and graphene skin-friendly breathable warm-keeping fabric, comprising two symmetrically arranged fixed frames 4, a sliding seat 5 slidably connected with the fixed frame 4, at least two telescopic pieces 7 symmetrically arranged in front of and behind the sliding seat 5, a connecting support 8 arranged at the telescopic end of the telescopic piece 7, two pressing plates 11 respectively arranged on the opposite sides of the two connecting supports 8, each of the pressing plates 11 is continuously and alternately connected with a concave part and a convex part on the opposite side, a hot pressing sheet 12 is arranged on the concave part of the pressing plate 11, a plurality of guide limiting pieces are arranged between the sliding seat 5 and the connecting support 8, and a pulling assembly is arranged on the connecting support 8.

[0034] It should be noted that in this embodiment, the telescopic piece 7 is an electric push rod.

[0035] Preferably, the front and rear ends of the two connecting supports 8 are symmetrically provided with baffle plates;

[0036] The toggle assembly connecting bracket 8 comprises at least two front and rear symmetrically arranged limiting seats 13 on the sliding seat 5 and penetrating through the connecting bracket 8, a moving rod 14 in sliding connection with the limiting seat 13, a plurality of toggle rods 15 arranged on the moving rod 14, a protrusion 16 arranged on the baffle, and a rolling shaft 17 rotationally connected to one end of the moving rod 14 close to the protrusion 16.

[0037] Preferably, the protrusions 16 on the baffles at the front and rear ends of the connecting bracket 8 are staggered to alternately push the moving rod 14 during the reciprocating movement of the connecting bracket 8, that is, as shown in the figure, the two protrusions 16 on the baffles at the rear ends of the two connecting brackets 8 are symmetrically arranged, the two protrusions 16 on the baffles at the front ends of the two connecting brackets 8 are symmetrically arranged, but the protrusions 16 on the baffles at the front and rear ends of the same connecting bracket 8 are staggered, when the connecting bracket 8 moves towards each other driven by the telescopic member 7, the moving rod 14 is pushed forward by the two protrusions 16 on the baffles at the rear ends, and when the connecting bracket 8 moves away from each other driven by the telescopic member 7, the moving rod 14 is pushed backward by the two protrusions 16 on the baffles at the front ends, thereby achieving the effect of alternately pushing the moving rod 14. Figures 1-2

[0038] Further, the sliding seat 5, the connecting bracket 8, the pressing plate 11 and the moving rod 14 are all two-section structures symmetrically arranged front and rear, and the sliding seat 5, the connecting bracket 8, the pressing plate 11 and the moving rod 14 are fixed by being inserted into each other, which facilitates the removal of the sliding seat 5, the connecting bracket 8, the pressing plate 11 and the moving rod 14 from the inner layer 1 and the outer layer 3.

[0039] Further, the guide limiting member comprises a fixed seat 6 arranged on the sliding seat 5, a guide rod 9 penetrating through the connecting bracket 8 and arranged on the fixed seat 6, and a spring 10 arranged between the fixed seat 6 and the connecting bracket 8 and sleeved outside the guide rod 9.

[0040] As shown in the figure, the aerogel and graphene skin-friendly breathable warm-keeping fabric of the present application comprises an inner layer 1, an outer layer 3 and a composite middle layer 2 arranged between the inner layer 1 and the outer layer 3. Figures 4-5

[0041] The composite middle layer 2 comprises a support layer one 21 and a support layer two 22 arranged on the opposite sides of the inner layer 1 and the outer layer 3, respectively, the support layer one 21 and the support layer two 22 are both concave and convex portions alternately connected, the concave and convex portions of the support layer one 21 and the support layer two 22 correspond to each other, a plurality of wrapping members 25 are symmetrically arranged on the inner walls of the concave portions of the support layer one 21 and the support layer two 22, a plurality of support strips 23 are arranged between the symmetrically arranged wrapping members 25, and a composite aerogel layer 24 is formed between the support strips 23.

[0042] ​​The vertical support 26 is provided between the upper and lower corresponding wrapping pieces 25 for supporting the wrapping piece 25, the middle part of the vertical support 26 is hollow, the outer wall of the vertical support 26 is fitted with the side edge of the wrapping piece 25, and the two sides of the vertical support 26 extend outward to form a pressing part;

[0043] The two side edges of the wrapping piece 25 are continuously connected, the support strips 23 on the support layer one 21 and the support layer two 22 and the side edges of the four wrapping pieces 25 close to the support strips 23 are hot-pressed into a middle contraction shape, the side edges of the wrapping piece 25 close to the support strips 23 are in a ring shape and wrapped outside the support strips 23 and the composite aerogel layer 24, and the other side edges of the wrapping piece 25 are arranged between the corresponding convex parts of the support layer one 21 and the support layer two 22 and are fixed together by hot pressing.

[0044] The support layer one 21, the support layer two 22, the support strip 23, the wrapping piece 25 and the vertical support 26 are all made of polyamide material or polypropylene material, and the composite aerogel layer 24 is made of graphene oxide and PVA material.

[0045] It should be noted that in the embodiment, the inner layer 1, the composite middle layer 2 and the outer layer 3 at the two ends of the cavity are all sewn and fixed together by cotton fiber;

[0046] In the embodiment, the support layer one 21, the support layer two 22, the support strip 23, the wrapping piece 25 and the vertical support 26 are all obtained by one-piece molding and extrusion, and the aerogel spinning solution containing graphene oxide is formed into the composite aerogel layer 24 between the support strips 23 of the inner layer 1 and the outer layer 3 by electrospinning technology;

[0047] In the embodiment, the inner layer 1 is a pure cotton fabric made of natural cotton fiber, which has the characteristics of softness, skin-friendliness and air permeability.

[0048] A method for preparing an aerogel and graphene skin-friendly and air-permeable thermal fabric by using an aerogel and graphene skin-friendly and air-permeable thermal fabric preparation device, the specific steps are as follows:

[0049] Step one: place the inner layer 1 and the outer layer 3 with the support layer one 21, the support layer two 22, the wrapping piece 25, the support strip 23 and the composite aerogel layer 24 obtained by preparation corresponding to each other, and place the vertical support 26 with an internal hollow between the upper and lower corresponding wrapping pieces 25;

[0050] Step two: extend the two connecting brackets 8, the pressing plate 11 and the hot pressing piece 12 into the inner hollow of the two vertical support pieces 26 respectively, push the two connecting brackets 8 close to each other through the telescopic piece 7, at the same time, move the two connecting brackets 8 towards each other, which will drive the shifting assembly to operate to shift the support strip 23 at the position of each convex part of the pressing plate 11 to the two hot pressing pieces 12 close to each other, and then heat and press the support strip 23, the composite aerogel layer 24, the wrapping piece 25 and the vertical support piece 26 on one side to form a middle shrinkage shape.

[0051] Step three: heat and press the inner layer 1, the outer layer 3, the support layer one 21, the support layer two 22 and the vertical support piece 26 on the other side together, and sew the outer edges of the inner layer 1 and the outer layer 3 together to obtain the breathable and warm fabric.

[0052] In step two, the temperature of the heat pressing treatment is 95-110℃, the heat pressing pressure is 2-4MPa, the heat pressing times is 2-4 times, and the heat pressing time of each time is 4-6min, preferably, the temperature of the heat pressing treatment is 110℃, the heat pressing pressure is 3MPa, the heat pressing times is 3 times, and the heat pressing time of each time is 6min.

[0053] In step three, the temperature of the heat pressing treatment is 145-165℃, the heat pressing pressure is 4-7MPa, the heat pressing times is 3-5 times, and the heat pressing time of each time is 5-8min, preferably, the temperature of the heat pressing treatment is 165℃, the heat pressing pressure is 7MPa, the heat pressing times is 4 times, and the heat pressing time of each time is 5min.

[0054] It should be noted that in the present application, the heat pressing treatment of the inner layer 1, the outer layer 3 and the support layer one 21, the support layer two 22 and the vertical support piece 26 on the other side is carried out by using a heat pressing roller, and the preparation device of the aerogel and graphene skin-friendly breathable and warm fabric is only used for the heat pressing treatment in step two.

[0055] In the present application, the connecting bracket 8 moves towards the opposite direction to drive the baffle connected with the connecting bracket 8 to move, the moving rod 14 and the poking rod 15 are pushed to move by the protrusion 16 on the baffle, the support strip 23 located at each protruding position of the pressing plate 11 is poked to the mutually symmetrical two hot pressing sheets 12 adjacent to the support strip 23 by the movement of the poking rod 15, then the support strip 23, the composite aerogel layer 24, the wrapping piece 25 and the vertical support piece 26 on one side are hot-pressed and fixed together by the hot pressing sheet 12 to form a middle contraction, then the wrapping piece 25 after the hot pressing treatment will be wrapped outside the support strip 23 and the composite aerogel layer 24, the support strip 23, the composite aerogel layer 24 and the wrapping piece 25 symmetrically arranged above and below will form a funnel shape, which is narrow in the middle and wide at both ends, and the funnel-shaped support strip 23, the composite aerogel layer 24 and the wrapping piece 25 adjacent in front and back will not be bonded together because the protruding position of the connecting bracket 8 is not provided with the hot pressing sheet 12, that is to say, there will be a gap between the funnel-shaped support strip 23, the composite aerogel layer 24 and the wrapping piece 25 adjacent in front and back, so that the fabric finally prepared can have better mechanical properties, and because of the existence of more gaps, the fabric can also have better air permeability.

[0056] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. An apparatus for preparing an aerogel, graphene skin-friendly, breathable and warm fabric, characterized in that: The utility model provides a kind of heat pressing machine, including two symmetrically arranged fixed frame (4), sliding seat (5) slidingly connected with fixed frame (4), at least two front and rear symmetrically arranged telescopic parts (7) on sliding seat (5), connecting bracket (8) is arranged at telescopic end of telescopic part (7), two pressing plates (11) are respectively arranged at opposite side of two connecting bracket (8), each pressing plate (11) is continuously connected with recess and convex part on opposite side, hot pressing piece (12) is arranged on the recess of pressing plate (11), a plurality of guiding limit pieces are arranged between sliding seat (5) and connecting bracket (8), and dialing assembly is arranged on connecting bracket (8); Two ends of the two connecting bracket (8) are symmetrically provided with baffle plates. The dialing assembly connecting bracket (8) includes at least two front and rear symmetrically arranged limit seats (13) on the sliding seat (5) and penetrating the connecting bracket (8), a moving rod (14) slidingly connected with the limit seat (13), a plurality of dialing rods (15) arranged on the moving rod (14), a protrusion (16) arranged on the baffle plate, and a rolling shaft (17) rotatably connected to one end of the moving rod (14) close to the protrusion (16).

2. The device for preparing aerogel, graphene skin-friendly and breathable thermal fabric according to claim 1, characterized in that: The protrusions (16) on the baffle plates at the front and rear ends of the connecting bracket (8) are staggered to alternately push the moving rods (14) during the reciprocating movement of the connecting bracket (8).

3. The device for preparing aerogel, graphene skin-friendly and breathable thermal fabric according to claim 1, characterized in that: The sliding seat (5), connecting bracket (8), pressing plate (11), and moving rod (14) are both front and rear symmetric two-section structures, and the front and rear symmetric sliding seat (5), connecting bracket (8), pressing plate (11), and moving rod (14) are mutually inserted and fixed.

4. The device for preparing aerogel, graphene skin-friendly and breathable thermal fabric according to claim 1, characterized in that: The guiding limit piece includes a fixed seat (6) arranged on the sliding seat (5), a guiding rod (9) penetrating the connecting bracket (8) and arranged on the fixed seat (6), and a spring (10) arranged between the fixed seat (6) and the connecting bracket (8) and sleeved outside the guiding rod (9).

5. A method for preparing aerogel, graphene skin-friendly and breathable thermal fabric using the preparation device according to any one of claims 1-4, characterized in that: The specific steps are as follows: Step one: place the prepared inner layer (1) and outer layer (3) with support layer one (21), support layer two (22), wrapping piece (25), support strip (23), and composite aerogel layer (24) corresponding to each other, and place the prepared internal hollow vertical support piece (26) between the corresponding wrapping pieces (25) above and below; Step two: extend two connecting brackets (8), pressing plates (11), and hot pressing pieces (12) into the internal hollows of the two mutually symmetric vertical support pieces (26), respectively, push the two connecting brackets (8) close to each other through the telescopic part (7), and at the same time, drive the dialing assembly to operate to move the support strip (23) at each convex position of the pressing plate (11) to between the two mutually symmetric hot pressing pieces (12) close to it while the two connecting brackets (8) move towards each other, and heat-press the support strip (23), composite aerogel layer (24), wrapping piece (25), and vertical support piece (26) on one side through the hot pressing piece (12) to form a middle contraction. Step three: heat-press the inner layer (1), the outer layer (3), the support layer one (21), the support layer two (22) and the vertical support (26) on the other side together, and sew the outer edges of the inner layer (1) and the outer layer (3) together to obtain the breathable and warm fabric.

6. The method of claim 5, wherein: In step two, the temperature of the heat-pressing treatment is 105-115℃, the heat-pressing pressure is 2-4MPa, the heat-pressing times are 2-4, and the heat-pressing time of each time is 4-7min.

7. The method of claim 5, wherein: In step three, the temperature of the heat-pressing treatment is 155-170℃, the heat-pressing pressure is 5-8MPa, the heat-pressing times are 3-5, and the heat-pressing time of each time is 3-6min.

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