Volcanic rock, aerogel and graphene composite heat storage fabric and preparation method thereof

Abstract

The invention relates to a volcanic rock, aerogel and graphene composite heat storage fabric and a preparation method thereof. The fabric comprises an inner layer, a composite middle layer and an outer layer which are sequentially arranged, the composite middle layer comprises a first supporting layer and a second supporting layer, the first supporting layer and the second supporting layer are concave parts and convex parts which are alternately connected, and a plurality of wrapping pieces are arranged on the inner walls of the concave parts of the first supporting layer and the second supporting layer in a bilateral symmetry mode. The composite aerogel layer is formed between the supporting strips, the wrapping piece wraps the supporting strips and the composite aerogel layer in a surrounding mode, and the vertical supporting piece supports the wrapping piece. The supporting strips, the composite aerogel layer, the wrapping pieces and the vertical supporting pieces are used in cooperation, so that the whole composite middle layer structure is more stable, the moisture absorption and heating performance of the composite heat storage fabric can be kept more durable, the composite heat storage fabric is resistant to washing, and the tear resistance and the down-proof performance of the composite heat storage fabric are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of clothing fabrics, and specifically relates to a volcanic rock, aerogel, and graphene composite heat storage fabric and a preparation method thereof. Background Art

[0002] Polyvinyl alcohol (PVA) is one of the raw materials for aerogel fabrics. In the preparation process of aerogel, polyvinyl alcohol (PVA) is often used as a base material and combined with other materials such as volcanic rock nanoparticles, graphene oxide, etc. to form aerogel fibers / fabrics with good heat storage and warmth retention effects. However, the volcanic rock nanoparticles, aerogels, and graphene oxide composite layers prepared by electrospinning technology in the prior art have poor mechanical properties, weak stability, and poor tear resistance, and cannot meet the use requirements of down jacket fabrics. After multiple washings, they are prone to deformation, breakage, and shedding, resulting in a significant decrease in the heat storage and warmth retention effects of the fabrics. In addition, down jacket fabrics are also required to have good anti-down drilling effects to avoid or reduce the occurrence of down leakage. Therefore, we provide a volcanic rock, aerogel, graphene composite heat storage fabric and a preparation method thereof to solve the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to provide a volcanic rock, aerogel, graphene composite thermal storage fabric and a preparation method thereof in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A volcanic rock, aerogel, graphene composite heat storage fabric, comprising an inner layer, a composite middle layer, and an outer layer arranged in sequence;

[0006] The composite middle layer comprises a support layer 1 and a support layer 2 respectively arranged on opposite sides of the inner layer and the outer layer, the support layer 1 and the support layer 2 both have concave parts and convex parts connected alternately, the concave parts and convex parts of the support layer 1 and the support layer 2 correspond to each other, a plurality of wrapping pieces are symmetrically arranged on the inner walls of the concave parts of the support layer 1 and the support layer 2, a plurality of support strips are arranged between the symmetrical wrapping pieces, and a composite aerogel layer is formed between the support strips;

[0007] The wrapping piece is two continuously connected sides, the support strips on the support layer one and the support layer two and the sides of the four wrapping pieces close to the support strips are formed into a central contraction shape by hot pressing, the sides of the wrapping piece close to the support strips are wrapped around the outside of the support strips and the composite aerogel layer in an embracing shape, and the other side of the wrapping piece is arranged between the corresponding convex parts of the support layer one and the support layer two and fixed together by hot pressing.

[0008] As a further optimization solution of the present invention, a vertical support member for supporting the wrapping members is provided between the upper and lower corresponding wrapping members.

[0009] As a further optimization solution of the present invention, the middle part of the vertical support member is hollow, the outer wall of the vertical support member is in contact with the side of the wrapping member, and the two sides of the vertical support member extend outward to form a pressing portion.

[0010] As a further optimization scheme of the present invention, the support layer one, support layer two, support bar, wrapping member, and vertical support member are all made of polyamide material or polypropylene material, and the composite aerogel layer is made of volcanic rock nanoparticles, graphene oxide, and PVA material.

[0011] A method for preparing a volcanic rock, aerogel, and graphene composite thermal storage fabric, the specific steps are as follows:

[0012] Step 1: Extruding a support layer 1 and a support layer 2 on the inner layer and the outer layer through a mold, respectively, wherein the support layer 1 and the support layer 2 are both alternately connected concave parts and convex parts, and extruding a plurality of wrapping parts and a plurality of support strips through a mold on the concave parts of the support layer 1 and the support layer 2;

[0013] Step 2: Using an electrostatic spinning technology to form a composite aerogel layer between the inner and outer support strips, the aerogel spinning solution containing volcanic rock nanoparticles and graphene oxide is respectively formed;

[0014] Step 3: The inner and outer support layers 1 and 2 are placed in a stacked manner, the concave and convex portions of the support layers 1 and 2 correspond to each other, a cavity is formed between the concave portions of the support layers 1 and 2, the wrapping pieces of the support layers 1 and 2 correspond to each other, and the side edges of the wrapping pieces close to the support strips are hot-pressed and fixed together with the support strips of the support layers 1 and 2 to form a contracted shape in the middle;

[0015] Step 4: The convex parts of the support layer 1 and the support layer 2 and the inner layer, the composite middle layer and the outer layer at both ends of the cavity are fixed together by hot pressing to obtain the composite heat storage fabric.

[0016] As a further optimization scheme of the present invention, in step 1, a vertical support piece is extruded through a mold through integral molding, the middle of the vertical support piece is hollow, and both sides extend to form a pressing portion;

[0017] In step three, the vertical support member is placed between the corresponding upper and lower wrapping members, so that the outer wall of the vertical support member is in contact with the side of the wrapping member, and then the pressing portion on one side of the vertical support member, the side of the wrapping member close to the support bar, and the support bars of support layer one and support layer two are hot-pressed together to form a contracted shape in the middle.

[0018] As a further optimization scheme of the present invention, in step three, the temperature of the hot pressing treatment is 105-115°C, the hot pressing pressure is 2-4MPa, the number of hot pressing times is 2-4 times, and the hot pressing time for each time is 4-7min.

[0019] As a further optimization scheme of the present invention, in step 4, the temperature of the hot pressing treatment is 155-170°C, the hot pressing pressure is 5-8MPa, the number of hot pressing times is 3-5 times, and the time of each hot pressing is 3-6min.

[0020] The beneficial effects of the present invention are:

[0021] 1) The present invention forms a composite aerogel layer between the support bars, and provides a wrapping piece that wraps around the support bars and the outside of the composite aerogel layer in an embracing shape, and the vertical support piece forms a structural design that supports the wrapping piece. The support bars, the composite aerogel layer, the wrapping piece, and the vertical support piece cooperate with each other to make the entire composite middle layer structure more stable, so that the moisture absorption and heat generation performance of the composite thermal storage fabric is maintained more durable and washable, and the tear resistance and anti-down drilling performance of the composite thermal storage fabric can be significantly improved;

[0022] 2) The present invention enables the composite aerogel layer to be attached to the support bar through the support bar, thereby increasing the stability of the composite aerogel layer. The upper and lower corresponding wrapping pieces are wrapped around the support bar and the outside of the composite aerogel layer in an embracing shape after hot pressing near the side of the support bar, which can play a certain protective role on the support bar and the composite aerogel layer, thereby further increasing the stability of the composite aerogel layer. The vertical support piece can form a supporting effect on the wrapping piece, in order to improve the stability of the structural state of the wrapping piece wrapped around the support bar and the outside of the composite aerogel layer in an embracing shape, thereby further increasing the stability of the composite aerogel layer, and ultimately making the moisture absorption and heat generation performance of the composite thermal storage fabric more durable, and also improving the tear resistance and anti-drilling performance of the composite thermal storage fabric;

[0023] 3) The present invention forms a cavity between the concave parts of the support layer 1 and the support layer 2, and divides the cavity into a plurality of spaces of different sizes by the support strips, the composite aerogel layer, the wrapping member and the vertical support member, so that down is not easy to penetrate, and the anti-down penetration effect of the composite heat storage fabric can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional schematic diagram of the composite heat storage fabric of the present invention.

[0025] Figure 2 Schematic diagram of the cross section of the composite middle layer of the present invention.

[0026] Figure 3 It is a cross-sectional schematic diagram of the wrapping member and the vertical support member of the present invention.

[0027] Figure 4 Schematic cross-sectional view of the package of the present invention.

[0028] Figure 5 Is a cross-sectional schematic diagram of the vertical support member of the present invention.

[0029] Figure 6 It is a schematic cross-sectional view of the composite middle layer of the composite heat storage fabric of Comparative Example 1 of the present invention.

[0030] Figure 7 It is a schematic cross-sectional view of the composite middle layer of the composite heat storage fabric of Comparative Example 2 of the present invention.

[0031] In the figure: 1, inner layer; 2, composite middle layer; 21, support layer one; 22, support layer two; 23, support bar; 24, composite aerogel layer; 25, wrapping piece; 26, vertical support piece; 3, outer layer. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] 1. Materials

[0034] 1. In the present application, the inner layer 1 is a commercially available pure cotton fabric, and the outer layer 3 is a commercially available 210T polyester pongee fabric.

[0035] 2. In the aerogel spinning solution containing volcanic rock nanoparticles and graphene oxide in the present application, the mass ratio of PVA (polyvinyl alcohol), graphene oxide, and volcanic rock nanoparticles is 10:1:1.

[0036] Unless otherwise specified, the methods used in this example are all known to those skilled in the art, and are conventional methods. The reagents and other materials used are all commercially available products unless otherwise specified.

[0037] 2. Methods

[0038] In order to explore the effects of different structural designs of the composite middle layer 2 on the durability of the moisture absorption and heat generation performance, tear resistance, and anti-down performance of the composite heat storage fabric, the following technical solutions of Examples 1-2 and Comparative Examples 1-2 were designed, as shown below:

[0039] Example 1

[0040] A volcanic rock, aerogel, graphene composite heat storage fabric, comprising an inner layer 1, a composite middle layer 2, and an outer layer 3 arranged in sequence;

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

[0042] The wrapping member 25 is two continuously connected sides, the support bars 23 on the support layer 1 21 and the support layer 2 22 and the sides of the four wrapping members 25 close to the support bars 23 are formed into a central contraction shape by hot pressing, and the sides of the wrapping members 25 close to the support bars 23 are wrapped around the outside of the support bars 23 and the composite aerogel layer 24 in an embracing shape, and the other side of the wrapping member 25 is arranged between the corresponding convex parts of the support layer 1 21 and the support layer 2 22 and fixed together by hot pressing.

[0043] Preferably, the support layer 1 21 , the support layer 2 22 , the support bar 23 , and the wrapping member 25 are all made of polyamide material or polypropylene material.

[0044] A method for preparing a volcanic rock, aerogel, and graphene composite thermal storage fabric, the specific steps are as follows:

[0045] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the inner layer 1 and the outer layer 3 through a mold, wherein the support layer 1 21 and the support layer 2 22 are both alternately connected concave parts and convex parts, and a plurality of wrapping members 25 and a plurality of support strips 23 are extruded on the concave parts of the support layer 1 21 and the support layer 2 22 through a mold;

[0046] Step 2: The aerogel spinning solution containing volcanic rock nanoparticles and graphene oxide is electrospinned to form a composite aerogel layer 24 between the support bars 23 of the inner layer 1 and the outer layer 3 respectively by electrostatic spinning technology;

[0047] Step 3: The support layer 1 21 and the support layer 2 22 of the inner layer 1 and the outer layer 3 are placed in correspondence with each other, the concave parts and convex parts of the support layer 1 21 and the support layer 2 22 are corresponding to each other, a cavity is formed between the concave parts of the support layer 1 21 and the support layer 2 22, the wrapping pieces 25 of the support layer 1 21 and the support layer 2 22 are corresponding to each other, and the side of the wrapping piece 25 close to the support strip 23 is fixed together with the support strip 23 of the support layer 1 21 and the support layer 2 22 by hot pressing to form a contracted shape in the middle;

[0048] It should be noted that in step 3, the temperature of the hot pressing treatment is 110°C, the hot pressing pressure is 3 MPa, the number of hot pressing times is 3 times, and the hot pressing time for each time is 6 minutes;

[0049] Step 4: hot-press and fix the convex parts of the support layer 1 21 and the support layer 2 22 and the inner layer 1, the composite middle layer 2, and the outer layer 3 at both ends of the cavity together to obtain the composite heat storage fabric;

[0050] It should be noted that in step 4, the temperature of the hot pressing treatment is 165°C, the hot pressing pressure is 7MPa, the number of hot pressing times is 4 times, and the hot pressing time of each time is 5min;

[0051] It should be noted that, in this embodiment, after the inner layer 1 , the composite middle layer 2 , and the outer layer 3 at both ends of the cavity are fixed together by heat pressing, the cavity can maintain a sealed state.

[0052] Example 2

[0053] like Figure 1-5 As shown, a volcanic rock, aerogel, graphene composite heat storage fabric, based on Example 1, in this embodiment, a vertical support member 26 for supporting the wrapping member 25 is provided between the upper and lower corresponding wrapping members 25;

[0054] Preferably, the middle portion of the vertical support member 26 is hollow, the outer wall of the vertical support member 26 is in contact with the side of the wrapping member 25, and both sides of the vertical support member 26 extend outward to form a pressing portion.

[0055] A method for preparing a volcanic rock, aerogel, and graphene composite thermal storage fabric, the specific steps are as follows:

[0056] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the inner layer 1 and the outer layer 3 through a mold, wherein the support layer 1 21 and the support layer 2 22 are both alternately connected concave parts and convex parts, and a plurality of wrapping parts 25 and a plurality of support strips 23 are extruded through a mold through the concave parts of the support layer 1 21 and the support layer 2 22, and a vertical support part 26 is extruded through the mold through the mold, and the middle part of the vertical support part 26 is hollow, and the two sides extend to form a pressing part;

[0057] Step 2: The aerogel spinning solution containing volcanic rock nanoparticles and graphene oxide is electrospinned to form a composite aerogel layer 24 between the support bars 23 of the inner layer 1 and the outer layer 3 respectively by electrostatic spinning technology;

[0058] Step 3: Place the support layer 1 21 and the support layer 2 22 of the inner layer 1 and the outer layer 3 in a corresponding manner, with the concave and convex portions of the support layer 1 21 and the support layer 2 22 corresponding to each other, forming a cavity between the concave portions of the support layer 1 21 and the support layer 2 22, and the wrapping pieces 25 of the support layer 1 21 and the support layer 2 22 corresponding to each other, placing the vertical support piece 26 between the corresponding wrapping pieces 25 above and below, so that the outer wall of the vertical support piece 26 fits with the side of the wrapping piece 25, and hot-pressing the pressing portion on one side of the vertical support piece 26 and the side of the wrapping piece 25 close to the support strip 23 to the support strip 23 of the support layer 1 21 and the support layer 22 to form a contracted shape in the middle;

[0059] It should be noted that in step 3, the temperature of the hot pressing treatment is 110°C, the hot pressing pressure is 3 MPa, the number of hot pressing times is 3 times, and the hot pressing time for each time is 6 minutes;

[0060] Step 4: hot-press and fix the convex parts of the support layer 1 21 and the support layer 2 22 and the inner layer 1, the composite middle layer 2, and the outer layer 3 at both ends of the cavity together to obtain the composite heat storage fabric;

[0061] It should be noted that in step 4, the temperature of the hot pressing treatment is 165°C, the hot pressing pressure is 7MPa, the number of hot pressing times is 4 times, and the hot pressing time of each time is 5min;

[0062] It should be noted that, in this embodiment, after the inner layer 1 , the composite middle layer 2 , and the outer layer 3 at both ends of the cavity are fixed together by heat pressing, the cavity can maintain a sealed state.

[0063] Comparative Example 1

[0064] like Figure 6 As shown, a volcanic rock, aerogel, graphene composite heat storage fabric, in this comparative example 1, the difference from Example 2 is that in this comparative example, there is no structural design of support bar 23 and vertical support member 26, and the rest are consistent with Example 2.

[0065] Comparative Example 2

[0066] like Figure 7 As shown, a volcanic rock, aerogel, graphene composite heat storage fabric, in this comparative example 2, the difference from embodiment 2 is that there is no structural design of support bar 23, wrapping member 25, vertical support member 26, and the rest are consistent with embodiment 2.

[0067] 3. Performance Test Experiment

[0068] The composite heat storage fabrics used in the following moisture absorption and heat generation performance test, tear resistance test and anti-down performance test are both unwashed composite heat storage fabrics and composite heat storage fabrics washed 30 times (washed 30 times in a drum washing machine with a speed of 1200r / min, and each washing time is 23min).

[0069] Hygroscopic heat generation performance: The test refers to GB / T29866-2013 "Test method for hygroscopic heat generation performance of textiles". The sewn fabric samples are placed in a blast drying oven, and after drying, they are moved into a drying dish for cooling. The drying dish is then placed in a constant temperature and humidity chamber for balance. A temperature sensor is inserted into the sample bag, and temperature data is recorded every 30 seconds for 30 minutes. After the test, the average temperature rise value and the maximum temperature rise value of the composite heat storage fabrics of Example 1-2 and Comparative Example 1-2 are calculated. The test data are shown in Table 1:

[0070] Table 1 Hygroscopicity and heat generation performance test data record table

[0071]

[0072] Experimental results: It can be seen from the data in Table 1 that there is no significant difference in the average temperature rise value and the maximum temperature rise value of the unwashed composite thermal storage fabrics of Examples 1-2 and Comparative Examples 1-2, while the average temperature rise value and the maximum temperature rise value of the composite thermal storage fabric washed 30 times in Example 2 are significantly the highest, which can indicate that the composite thermal storage fabric of Example 2 has a better durability in moisture absorption and heat generation performance, that is, the composite thermal storage fabric has a better durability in thermal storage performance and is washable;

[0073] By comparing the test data of the composite heat storage fabrics of Examples 1-2 and Comparative Examples 1-2 washed 30 times, it can be seen that the average temperature rise value and the maximum temperature rise value of the composite heat storage fabrics of Comparative Examples 1-2 are significantly reduced after being washed 30 times. Compared with Example 2, Example 1 has a structural design without the vertical support member 26, and Comparative Example 1 has a structural design without the support bar 23 and the vertical support member 26. Compared with Example 1, Comparative Example 1 has a structural design without the support bar 23, and Comparative Example 2 has a structural design without the support bar 23, the wrapping member 25, and the vertical support member 26. It can be explained that the structural design of the support bar 23 enables the composite aerogel layer 24 to be attached to the support bar 23, thereby increasing the stability of the composite aerogel layer 24, making it not easy to loosen and deform after washing, and then making the composite storage The moisture absorption and heating performance of the thermal fabric is maintained more durable. The upper and lower corresponding wrapping members 25 are wrapped around the support bar 23 and the outside of the composite aerogel layer 24 in an embracing shape after hot pressing near the side of the support bar 23, which can play a certain protective role on the support bar 23 and the composite aerogel layer 24, thereby further increasing the stability of the composite aerogel layer 24, making it difficult to deform, loosen, fall off, break, etc. after washing, and can further maintain the moisture absorption and heating performance of the composite thermal storage fabric more durable. The vertical support member 26 can support the wrapping member 25 in order to improve the stability of the structural state of the wrapping member 25 wrapped around the support bar 23 and the outside of the composite aerogel layer 24, thereby further increasing the stability of the composite aerogel layer 24, and finally maintaining the moisture absorption and heating performance of the composite thermal storage fabric more durable.

[0074] In summary, a composite aerogel layer 24 is formed between the support bars 23, and a wrapping member 25 is provided to wrap around the support bars 23 and the outside of the composite aerogel layer 24 in an embracing shape. The vertical support members 26 form a structural design to support the wrapping member 25. The cooperation between the wrapping members 25 can make the structure of the entire composite middle layer 2 more stable, thereby maintaining the moisture absorption and heat generation performance of the composite heat storage fabric for a longer period of time.

[0075] Tear resistance test: Experimental equipment: Q800 dynamic mechanical analyzer (DMA, TA Instruments, Inc., USA), experimental method, take the composite thermal storage fabrics of the above-mentioned Examples 1-2 and Comparative Examples 1-2 as samples, the sample specifications are 230×150 mm long strips, the samples are placed in a tensile fixture, one end is fixed, and the other end can move with the fixture, the temperature is 22°C±3°C, the frequency is set to 3Hz, the applied stress is gradually increased from 0 at a speed of 4MPa / s, the sample strain change is recorded until the sample breaks, and the stress at the breaking point is taken as the sample tensile strength. The test data are shown in Table 2:

[0076] Table 2 Tear resistance test data record

[0077]

[0078] Experimental results: It can be seen from the data in Table 2 that compared with comparative examples 1-2, the composite heat storage fabrics of Examples 1 and 2 have better tear resistance, which shows that a composite aerogel layer 24 is formed between the support bars 23, and a wrapping member 25 is provided to wrap around the support bar 23 and the outside of the composite aerogel layer 24 in an embracing shape, and a vertical support member 26 forms a structural design that supports the wrapping member 25. The support bar 23, the composite aerogel layer 24, the wrapping member 25, and the vertical support member 26 cooperate with each other to make the structure of the entire composite middle layer 2 more stable, thereby improving the structural stability of the composite heat storage fabric, increasing its mechanical properties, and making the composite heat storage fabric have a better tear resistance effect.

[0079] Anti-down drilling performance test: According to the national standard GB / T12705.2-2009 "Test method for anti-down leakage of textile fabrics Part 2: Transfer box method", the anti-down drilling performance of the fabric is tested. When the number of down drilling roots of the fabric is greater than 15, the anti-down drilling performance is poor; when the number of down drilling roots is 5<≤15, it has anti-down drilling performance; when the number of down drilling roots is ≤5, it has good anti-down drilling performance. The test data are shown in Table 3:

[0080] Table 3 Anti-drilling performance test data record table

[0081]

[0082]

[0083] Experimental results: It can be seen from the data in Table 3 that the composite heat storage fabrics of Examples 1-2 have good anti-down drilling effect. A composite aerogel layer 24 is formed between the support bars 23, and a wrapping piece 25 is provided to wrap around the support bars 23 and the outside of the composite aerogel layer 24 in an embracing shape. The vertical support members 26 form a structural design that supports the wrapping member 25. The use of them in conjunction with each other can make the structure of the entire composite middle layer 2 more stable, and it is not easy to deform after washing. Both ends of the cavity are hot-pressed to form a sealed state, and it is not easy for down to run. In addition, the support bars 23, the composite aerogel layer 24, the wrapping piece 25 and the vertical support members 26 divide the cavity into several spaces of different sizes, and the down is not easy to get out, which further improves the anti-down drilling effect of the composite heat storage fabric.

[0084] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A volcanic rock, aerogel, graphene composite thermal storage fabric, characterized by: It comprises an inner layer (1), a composite middle layer (2), and an outer layer (3) which are arranged in sequence; The composite middle layer (2) comprises a support layer 1 (21) and a support layer 2 (22) respectively arranged on opposite sides of the inner layer (1) and the outer layer (3); the support layer 1 (21) and the support layer 2 (22) are both alternately connected concave parts and convex parts, the concave parts and convex parts of the support layer 1 (21) and the support layer 2 (22) correspond to each other, a plurality of wrapping members (25) are symmetrically arranged on the inner walls of the concave parts of the support layer 1 (21) and the support layer 2 (22), a plurality of support bars (23) are arranged between the symmetrical wrapping members (25), and a composite aerogel layer (24) is formed between the support bars (23); The wrapping member (25) is a pair of continuously connected side edges; the support strips (23) on the support layer 1 (21) and the support layer 2 (22) and the side edges of the four wrapping members (25) close to the support strips (23) are formed into a central contraction shape by hot pressing; the side edges of the wrapping members (25) close to the support strips (23) are wrapped around the outside of the support strips (23) and the composite aerogel layer (24) in an embracing shape; the other side edge of the wrapping member (25) is arranged between the corresponding convex portions of the support layer 1 (21) and the support layer 2 (22) and fixed together by hot pressing.

2. The volcanic rock, aerogel, and graphene composite thermal storage fabric according to claim 1, characterized in that: A vertical support member (26) for supporting the wrapping member (25) is provided between the upper and lower corresponding wrapping members (25).

3. The volcanic rock, aerogel, and graphene composite thermal storage fabric according to claim 2, characterized in that: The middle part of the vertical support member (26) is hollow, the outer wall of the vertical support member (26) is in contact with the side of the wrapping member (25), and the two sides of the vertical support member (26) extend outward to form a pressing portion.

4. The volcanic rock, aerogel, and graphene composite thermal storage fabric according to claim 3, characterized in that: The support layer 1 (21), the support layer 2 (22), the support bar (23), the wrapping member (25), and the vertical support member (26) are all made of polyamide material or polypropylene material, and the composite aerogel layer (24) is made of volcanic rock nanoparticles, graphene oxide, and PVA material.

5. A method for preparing the volcanic rock, aerogel, and graphene composite thermal storage fabric according to any one of claims 1 to 4, characterized in that: The specific steps are as follows: Step 1: A support layer 1 (21) and a support layer 2 (22) are integrally formed on the inner layer (1) and the outer layer (3) respectively by means of a mold, wherein the support layer 1 (21) and the support layer 2 (22) are both alternately connected concave parts and convex parts, and a plurality of wrapping parts (25) and a plurality of support strips (23) are integrally formed on the concave parts of the support layer 1 (21) and the support layer 2 (22) by means of a mold; Step 2: using an electrostatic spinning technology to form a composite aerogel layer (24) between the support bars (23) of the inner layer (1) and the outer layer (3) using an aerogel spinning solution containing volcanic rock nanoparticles and graphene oxide; Step 3: The support layer 1 (21) and the support layer 2 (22) of the inner layer (1) and the outer layer (3) are stacked and placed correspondingly to each other, the concave parts and convex parts of the support layer 1 (21) and the support layer 2 (22) are corresponding to each other, a cavity is formed between the concave parts of the support layer 1 (21) and the support layer 2 (22), the wrapping pieces (25) of the support layer 1 (21) and the support layer 2 (22) are corresponding to each other, and the side edge of the wrapping piece (25) close to the support strip (23) is fixed together with the support strip (23) of the support layer 1 (21) and the support layer 2 (22) by hot pressing to form a contracted shape in the middle; Step 4: The convex parts of the support layer 1 (21) and the support layer 2 (22) as well as the inner layer (1), the composite middle layer (2) and the outer layer (3) at both ends of the cavity are fixed together by hot pressing to obtain a composite heat storage fabric.

6. The method for preparing a volcanic rock, aerogel, and graphene composite thermal storage fabric according to claim 5, characterized in that: In step 1, a vertical support member (26) is integrally formed by a mold, wherein the middle of the vertical support member (26) is hollow and both sides extend to form a pressing portion; In step three, the vertical support member (26) is placed between the corresponding upper and lower wrapping members (25), so that the outer wall of the vertical support member (26) is in contact with the side of the wrapping member (25), and then the pressing portion on one side of the vertical support member (26), the side of the wrapping member (25) close to the support strip (23) and the support strips (23) of the support layer 1 (21) and the support layer 2 (22) are fixed together by heat pressing to form a contracted shape in the middle.

7. The method for preparing a volcanic rock, aerogel, and graphene composite thermal storage fabric according to claim 6, characterized in that: In step three, the temperature of the hot pressing treatment is 105-115° C., the hot pressing pressure is 2-4 MPa, the number of hot pressing times is 2-4 times, and the hot pressing time for each time is 4-7 minutes.

8. The method for preparing a volcanic rock, aerogel, and graphene composite thermal storage fabric according to claim 6, characterized in that: In step 4, the temperature of the hot pressing treatment is 155-170°C, the hot pressing pressure is 5-8MPa, the number of hot pressing times is 3-5 times, and the hot pressing time for each time is 3-6min.

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