An antistatic and quick-drying multi-layer composite nylon fabric and its preparation method

Abstract

The present invention discloses an antistatic and quick-drying multi-layer composite nylon fabric and a preparation method thereof. The antistatic and quick-drying multi-layer composite nylon fabric sequentially includes, from the outside to the inside: a modified layer, a carbon bead layer, and a moisture absorption layer; the modified layer is prepared by mixing bio-based nylon and modified graphene to obtain a modified graphene nylon fabric, and then blending it into yarn and weaving it; the carbon bead layer is prepared from carbon powder, phenolic resin, nano silver, and a surfactant; the moisture absorption layer is prepared by soaking bio-based nylon in a moisture absorbent, blending it into yarn, and weaving it; when polypropylene / modified graphene fiber modifies the existing bio-based nylon, it not only improves the antistatic resistance but also maintains a relatively high mechanical strength as much as possible. The prepared composite fabric has better antistatic, antibacterial, and moisture absorption properties, effectively solving the problem of the decrease in breaking strength and service performance caused by the improvement of antistatic properties.

Description

Technical Field

[0001] The present invention relates to the technical field of textile fabrics, and particularly to an antistatic and quick-drying polyamide multi-layer composite fabric and a preparation method thereof. Background Art

[0002] With the development of the times, people have higher and higher requirements for fabrics. Developing fabrics that can meet the needs of consumers plays an increasingly important role in fabric production. Waterproof and moisture-permeable functional clothing can block the invasion of harsh external weather and prevent rain and snow from penetrating, while also timely discharging the sweat and moisture generated by the human body during exercise, thereby regulating the microenvironment of the human body and providing good comfort for the human body, making the protective function and comfort of clothing fabrics unified;

[0003] Existing single-layer textile fabrics can no longer meet people's daily needs. Especially in terms of antistatic and quick-drying performance, single-layer fabrics cannot effectively resist static electricity. In addition, after long-term use, a large number of bacteria or microorganisms are likely to breed on the fabric, which will affect its practicality and safety. Therefore, multi-layer composite fabrics have gradually received wide attention.

[0004] Traditional polyamide fabrics have certain wear resistance and elasticity, but they perform poorly in terms of antistatic and quick-drying properties. The generation of static electricity not only causes discomfort when wearing, but may also pose safety hazards such as spark discharge. At the same time, traditional polyamide fabrics also have defects in moisture absorption and sweat discharge, and it is difficult to meet the requirement of quick drying.

[0005] In the prior art, the mass specific resistance of PA56 staple fibers used is large, the static electricity phenomenon is serious, and static charges often accumulate on the fiber surface and are not easily dissipated. The static electricity phenomenon in the fiber processing process will cause problems such as difficulty in forming a web in the carding process, unclear separation of yarns, and accumulation of flying fibers and dust. The patent with publication number CN114737271A mixes PA56 with graphene to obtain graphene polyamide fibers to improve the antistatic durability of graphene polyamide fibers. However, the breaking strength of the polyamide filaments and yarns after being treated with graphene has a significant decrease, and the use value will also be greatly affected.

[0006] Therefore, at present, the antistatic and quick-drying polyamide multi-layer composite fabrics and related technologies still need to be further improved. Summary of the Invention

[0007] Aiming at the deficiencies of the above-mentioned existing technologies, the purpose of the present invention is to provide an antistatic and quick-drying polyamide multi-layer composite fabric and a preparation method thereof, which solve the problems of poor antistatic performance and low mechanical strength of polyamide fabrics in the prior art.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions:

[0009] On the one hand, the present invention provides an antistatic and quick-drying multi-layer composite polyamide fabric, which successively includes from outside to inside: a modified layer, a carbon bead layer, and a moisture absorption layer;

[0010] Among them, the modified layer is prepared by mixing bio-based polyamide and modified graphene to obtain a modified graphene polyamide fabric, and then blending it into yarn and weaving it;

[0011] On the basis of this technical solution, further preferably, the carbon bead layer is prepared from carbon powder, phenolic resin, nano-silver, and a surfactant;

[0012] On the basis of this technical solution, further preferably, the moisture absorption layer is obtained by soaking bio-based polyamide in a moisture absorbent, blending it into yarn, and weaving it.

[0013] On the basis of this technical solution, further preferably, the moisture absorbent includes the following components in parts by weight: 80-100 parts of silicone oil, 12-20 parts of allyl polyether with terminal epoxy groups, 45-60 parts of DMF, 18-24 parts of n-dodecene, 0.8-1.6 parts of chloroplatinic acid, and 30-42 parts of emulsifier.

[0014] On the basis of this technical solution, further preferably, the preparation method of the modified layer includes the following steps:

[0015] Prepare modified graphene. Add a surfactant to graphene, ultrasonically disperse it, filter it by suction, dry it, then add polypropylene, ball mill and blend, and granulate to obtain modified graphene;

[0016] Add bio-based polyamide, blend it with modified graphene, melt-spin, and weave to obtain the modified layer.

[0017] On the basis of this technical solution, further preferably, the surfactant is cetylpyridinium chloride, and the molar ratio of the surfactant to graphene is 2.5-5%.

[0018] On the basis of this technical solution, further preferably, the molar ratio of graphene to polypropylene is 0.03-0.05:1.

[0019] On the basis of this technical solution, further preferably, the preparation method of the moisture absorbent includes the following steps:

[0020] Weigh 80-100 parts of silicone oil, 12-20 parts of allyl polyether with terminal epoxy groups, 45-60 parts of DMF, and 18-24 parts of n-dodecene by weight, put them into the reaction, mix and stir, and heat up to 75-80 °C;

[0021] Then, 0.8 - 1.6 parts of chloroplatinic acid are added, and the reaction is carried out under heat preservation for 1 - 2 h. After cooling down, distillation is carried out, and then 30 - 42 parts of emulsifier are added and mixed evenly. The pH is adjusted to 7 with acid to obtain the moisture absorbent.

[0022] On the basis of this technical solution, further preferably, for the carbon bead layer, the preparation method includes the following steps:

[0023] The carbon powder and phenolic resin are mixed evenly, heated and stirred to obtain mixture one.

[0024] Then, the surfactant and nano - silver are mixed evenly to obtain mixture two. Mixture one and mixture two are mixed evenly, heated and stirred, and then cured to obtain the carbon bead layer.

[0025] On the basis of this technical solution, further preferably, the molar ratio of the carbon powder to the phenolic resin is 1.5 - 2:1, and the molar ratio of the surfactant to the nano - silver is 0.9 - 1:1.

[0026] On the basis of this technical solution, further preferably, the soaking time of the bio - based polyamide in the moisture absorbent is 3 - 5 h, and the soaking temperature is 30 - 40 °C.

[0027] On the other hand, the present invention also provides a preparation method of the antistatic and quick - drying polyamide multi - layer composite fabric, and the preparation method includes:

[0028] The modified layer, the carbon bead layer and the moisture absorption layer are compounded and woven to obtain the antistatic and quick - drying polyamide multi - layer composite fabric.

[0029] The antistatic and quick - drying polyamide multi - layer composite fabric and its preparation method of the present invention have the following beneficial effects compared with the prior art:

[0030] (1) In the present invention, modified graphene forms hydrogen bonds with the groups of polypropylene through surface groups, improving the crystallinity of polypropylene, and further enhancing the mechanical properties of the polypropylene / modified graphene fiber. When the polypropylene / modified graphene fiber modifies the existing bio - based polyamide, it not only improves the antistatic resistance but also maintains a relatively high mechanical strength as much as possible, effectively solving the problem of the decrease in breaking strength and the reduction in service performance caused by the improvement of antistatic property.

[0031] (2) The present invention also effectively designs the moisture absorption layer. The moisture absorption layer is prepared from silicone oil, allyl polyether with terminal epoxy groups and dodecene, and is formed after being emulsified by an emulsifier. It has good moisture absorption performance, can effectively penetrate into the interior of the fabric and yarn, and improve the quick - drying effect.

[0032] (3) The present invention also designs the carbon bead layer. By using the compounding of carbon powder, phenolic resin and surfactant, the obtained carbon beads have good stability, thereby enhancing the antibacterial, mildew - proof and gas - proof effects of the multi - layer composite fabric and improving the overall comfort of the composite fabric. Brief Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 It is a structural diagram of the antistatic and quick-drying polyamide multi-layer composite fabric shown in the present invention. Detailed Embodiments

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] The present invention provides an antistatic and quick-drying polyamide multi-layer composite fabric and a preparation method thereof, including a modified layer, a carbon bead layer, and a moisture absorption layer; wherein the modified layer is prepared by preparing a modified graphene polyamide fabric from bio-based polyamide and modified graphene, and then blending and spinning into yarn and weaving; the carbon bead layer is prepared from carbon powder, phenolic resin, nano silver, and a surfactant; the moisture absorption layer is prepared by soaking bio-based polyamide in a moisture absorbent, blending and spinning into yarn, and weaving, solving the problems of poor antistatic performance and low mechanical strength of polyamide fabrics in the prior art.

[0037] Example 1

[0038] An antistatic and quick-drying polyamide multi-layer composite fabric, as Figure 1 shown, includes: a modified layer, a carbon bead layer, and a moisture absorption layer,

[0039] The modified layer is prepared by preparing a modified graphene polyamide fabric from bio-based polyamide and modified graphene, and then blending and spinning into yarn and weaving;

[0040] Specifically, the carbon bead layer is prepared from carbon powder, phenolic resin, nano silver, and a surfactant;

[0041] Specifically, the moisture absorption layer is prepared by soaking bio-based polyamide in a moisture absorbent, blending and spinning into yarn, and weaving.

[0042] Specifically, the moisture absorbent includes the following components: 80 g of silicone oil, 12 g of allyl polyether with terminal epoxy groups, 45 g of DMF, 18 g of n-dodecene, 0.8 g of chloroplatinic acid, and 30 g of emulsifier.

[0043] Specifically, the preparation method of the modified layer includes the following steps:

[0044] Prepare modified graphene. Add a surfactant to graphene, disperse it by ultrasonic treatment, perform suction filtration, and after drying, add polypropylene, blend by ball milling, and granulate to obtain modified graphene;

[0045] Add bio-based polyamide, blend it with the modified graphene, perform melt spinning, and weave to obtain the modified layer.

[0046] Specifically, the surfactant is cetylpyridinium chloride, and the molar ratio of the surfactant to graphene is 2.5%.

[0047] Specifically, the molar ratio of the graphene to the polypropylene is 0.03:1.

[0048] Specifically, the preparation method of the moisture absorbent includes the following steps:

[0049] Weigh 80 g of silicone oil, 12 g of allyl polyether with terminal epoxy groups, 45 g of DMF, and 18 g of n-dodecene by weight, put them into the reaction, mix and stir, and raise the temperature to 75 °C;

[0050] Then add 0.8 g of chloroplatinic acid, keep the temperature for reaction for 1 h, cool down, distill, then add 30 g of emulsifier, mix well, adjust the pH to 7 with acid to obtain the moisture absorbent.

[0051] Specifically, the emulsifier is AEO-7.

[0052] Specifically, the preparation method of the carbon bead layer includes the following steps:

[0053] Mix carbon powder and phenolic resin evenly, heat and stir to obtain mixture one,

[0054] Then mix the surfactant and nano silver evenly to obtain mixture two, mix mixture one and mixture two evenly, heat and stir, and cure to obtain the carbon bead layer.

[0055] Specifically, the molar ratio of the carbon powder to the phenolic resin is 1.5:1, and the molar ratio of the surfactant to the nano silver is 0.9:1.

[0056] Specifically, the soaking time of the bio-based polyamide in the moisture absorbent is 3 h, and the soaking temperature is 30 °C.

[0057] The preparation method of the antistatic and quick-drying polyamide multi-layer composite fabric, the preparation method includes:

[0058] Composite and weave the modified layer, the carbon bead layer and the moisture absorption layer to obtain the antistatic and quick-drying polyamide multi-layer composite fabric.

[0059] Example 2

[0060] An antistatic and quick-drying polyamide multi-layer composite fabric, comprising: a modified layer, a carbon bead layer, and a moisture absorption layer,

[0061] The modified layer is prepared by preparing a modified graphene polyamide fabric from bio-based polyamide and modified graphene, and then blending and spinning into yarn and weaving;

[0062] Specifically, the carbon bead layer is prepared from carbon powder, phenolic resin, nano silver, and a surfactant;

[0063] Specifically, the moisture absorption layer is prepared by soaking a bio-based polyamide in a moisture absorbent, blending and spinning into yarn, and weaving.

[0064] Specifically, the moisture absorbent comprises the following components in parts by weight: 100 g of silicone oil, 20 g of allyl polyether with terminal epoxy groups, 60 g of DMF, 24 g of n-dodecene, 1.6 g of chloroplatinic acid, and 42 g of emulsifier.

[0065] Specifically, the preparation method of the modified layer comprises the following steps:

[0066] Prepare modified graphene. Add a surfactant to graphene, ultrasonically disperse, filter by suction, dry, then add polypropylene, ball mill and blend, and granulate to obtain modified graphene;

[0067] Add bio-based polyamide, blend with modified graphene, melt spin, and weave to obtain the modified layer.

[0068] Specifically, the surfactant is cetylpyridinium chloride, and the molar ratio of the surfactant to graphene is 5%.

[0069] Specifically, the molar ratio of graphene to polypropylene is 0.05:1.

[0070] Specifically, the preparation method of the moisture absorbent comprises the following steps:

[0071] Weigh 100 g of silicone oil, 20 g of allyl polyether with terminal epoxy groups, 60 g of DMF, and 24 g of n-dodecene according to the amount, put them into the reaction, mix and stir, and heat up to 80 °C;

[0072] Then add 1.6 g of chloroplatinic acid, keep the temperature for reaction for 2 h, cool down, distill, then add 42 g of emulsifier, mix well, adjust the pH to 7 with acid to obtain the moisture absorbent.

[0073] Specifically, the emulsifier is AEO-7.

[0074] Specifically, the preparation method of the carbon bead layer comprises the following steps:

[0075] Mix carbon powder and phenolic resin evenly, heat and stir to obtain mixture one,

[0076] Next, mix the surfactant with the nano silver to obtain Mixture 2. Then mix Mixture 1 with Mixture 2, heat and stir, and cure to obtain the carbon bead layer.

[0077] Specifically, the molar ratio of the carbon powder to the phenolic resin is 2:1, and the molar ratio of the surfactant to the nano silver is 1:1.

[0078] Specifically, the soaking time of the bio-based polyamide in the moisture absorbent is 5 h, and the soaking temperature is 40 °C.

[0079] The preparation method of the antistatic and quick-drying polyamide multi-layer composite fabric described above includes:

[0080] Compound and weave the modified layer, the carbon bead layer and the moisture absorption layer to obtain the antistatic and quick-drying polyamide multi-layer composite fabric.

[0081] Example 3

[0082] An antistatic and quick-drying polyamide multi-layer composite fabric, comprising: a modified layer, a carbon bead layer, and a moisture absorption layer.

[0083] The modified layer is prepared by preparing a modified graphene polyamide fabric from bio-based polyamide and modified graphene, and then blending and spinning into yarn and weaving.

[0084] Specifically, the carbon bead layer is prepared from carbon powder, phenolic resin, nano silver and a surfactant.

[0085] Specifically, the moisture absorption layer is obtained by soaking the bio-based polyamide in a moisture absorbent, blending and spinning into yarn, and weaving.

[0086] Specifically, the moisture absorbent includes the following components in parts by weight: 90 g of silicone oil, 18 g of allyl polyether with terminal epoxy groups, 55 g of DMF, 20 g of n-dodecene, 1.2 g of chloroplatinic acid and 38 g of emulsifier.

[0087] Specifically, the preparation method of the modified layer includes the following steps:

[0088] Prepare modified graphene. Add a surfactant to graphene, ultrasonically disperse, filter by suction, dry, then add polypropylene, ball mill and blend, and granulate to obtain modified graphene.

[0089] Add bio-based polyamide, blend with modified graphene, melt spin, and weave to obtain the modified layer.

[0090] Specifically, the surfactant is cetylpyridinium chloride, and the molar ratio of the surfactant to graphene is 4%.

[0091] Specifically, the molar ratio of graphene to polypropylene is 0.04:1.

[0092] Specifically, the preparation method of the moisture absorbent includes the following steps:

[0093] Weigh 90 g of silicone oil, 18 g of allyl polyether with terminal epoxy groups, 55 g of DMF, and 20 g of n-dodecene by weight, put them into reaction, mix and stir, and heat up to 78 °C;

[0094] Then add 1.2 g of chloroplatinic acid, keep the temperature for reaction for 1.5 h, cool down, distill, then add 38 g of emulsifier, mix well, adjust the pH to 7 with acid to obtain the moisture absorbent.

[0095] Specifically, the emulsifier is AEO-7.

[0096] Specifically, the preparation method of the carbon bead layer includes the following steps:

[0097] Mix carbon powder and phenolic resin evenly, heat and stir to obtain mixture one,

[0098] Then mix surfactant and nano silver evenly to obtain mixture two, mix mixture one and mixture two evenly, heat and stir, and cure to obtain the carbon bead layer.

[0099] Specifically, the molar ratio of the carbon powder to the phenolic resin is 1.8:1, and the molar ratio of the surfactant to the nano silver is 0.95:1.

[0100] Specifically, the soaking time of the bio-based polyamide in the moisture absorbent is 4 h, and the soaking temperature is 35 °C.

[0101] For the preparation method of the antistatic and quick-drying polyamide multi-layer composite fabric described above, the preparation method includes:

[0102] Compound and weave the modified layer, carbon bead layer and moisture absorption layer to obtain the antistatic and quick-drying polyamide multi-layer composite fabric.

[0103] Example 4

[0104] An antistatic and quick-drying polyamide multi-layer composite fabric, comprising: a modified layer, a carbon bead layer, and a moisture absorption layer,

[0105] The modified layer is prepared by preparing a modified graphene polyamide fabric from bio-based polyamide and modified graphene, and then mixing and spinning into yarn and weaving;

[0106] Specifically, the carbon bead layer is prepared from carbon powder, phenolic resin, nano silver and surfactant;

[0107] Specifically, the moisture absorption layer is obtained by soaking the bio-based polyamide in the moisture absorbent, mixing and spinning into yarn and weaving.

[0108] Specifically, the moisture absorbent comprises the following components in parts by weight: 80 g of silicone oil, 12 g of allyl polyether with terminal epoxy groups, 45 g of DMF, 18 g of n-dodecene, 0.8 g of chloroplatinic acid, and 30 g of emulsifier.

[0109] Specifically, the preparation method of the modified layer comprises the following steps:

[0110] Prepare modified graphene. Add a surfactant to graphene, disperse it by ultrasonic treatment, filter it by suction, and after drying, add polypropylene and blend them by ball milling and granulate to obtain modified graphene;

[0111] Add bio-based polyamide and blend it with the modified graphene, then melt-spin and weave to obtain the modified layer.

[0112] Specifically, the surfactant is cetylpyridinium chloride, and the molar ratio of the surfactant to graphene is 3%.

[0113] Specifically, the molar ratio of graphene to polypropylene is 0.04:1.

[0114] Specifically, the preparation method of the moisture absorbent comprises the following steps:

[0115] Weigh 80 g of silicone oil, 12 g of allyl polyether with terminal epoxy groups, 45 g of DMF, and 18 g of n-dodecene according to the amount, put them into the reaction, mix and stir, and heat up to 75 °C;

[0116] Then add 0.8 g of chloroplatinic acid, keep the temperature for reaction for 1 h, cool down, distill, then add 30 g of emulsifier, mix well, and adjust the pH to 7 with acid to obtain the moisture absorbent.

[0117] Specifically, the emulsifier is AEO-9.

[0118] Specifically, the preparation method of the carbon bead layer comprises the following steps:

[0119] Mix carbon powder and phenolic resin evenly, heat and stir to obtain mixture one,

[0120] Then mix the surfactant and nano silver evenly to obtain mixture two, mix mixture one and mixture two evenly, heat and stir, and cure to obtain the carbon bead layer.

[0121] Specifically, the molar ratio of carbon powder to phenolic resin is 1.5 - 2:1, and the molar ratio of the surfactant to nano silver is 0.9 - 1:1.

[0122] Specifically, the soaking time of the bio-based polyamide in the moisture absorbent is 3 - 5 h, and the soaking temperature is 30 - 40 °C.

[0123] The preparation method of the antistatic and quick-drying polyamide multi-layer composite fabric described above, the preparation method comprises:

[0124] The modified layer, carbon bead layer and moisture absorption layer are compounded and woven to obtain an antistatic and quick-drying polyamide multi-layer composite fabric.

[0125] Comparative Example 1

[0126] An antistatic polyamide composite fabric, which is different from Example 1 in that the modified layer is not provided.

[0127] Comparative Example 2

[0128] An antistatic polyamide composite fabric, which is different from Example 2 in that the moisture absorption layer is not provided.

[0129] Comparative Example 3

[0130] An antistatic polyamide composite fabric, which is different from Example 3 in that the carbon bead layer is not provided.

[0131] Comparative Example 4

[0132] An antistatic polyamide composite fabric, which is different from Example 4 in that the modified layer is not provided, but outside the moisture absorption layer and the carbon bead layer, after blending existing bio-based polyamide and graphene, they are spun into yarn and woven.

[0133] Comparative Example 5

[0134] An antistatic polyamide composite fabric, which is different from Example 1 in that the molar ratio of graphene to polypropylene is 0.2:1.

[0135] Comparative Example 6

[0136] An antistatic polyamide composite fabric, which is different from Example 1 in that the molar ratio of carbon powder to phenolic resin is 3:1, and the molar ratio of surfactant to nano-silver is 0.5:1.

[0137] Performance detection test

[0138] In accordance with GB / T 12703 "Assessment of Electrostatic Properties of Textiles", the resistivity of the antistatic polyamide composite fabrics prepared from all examples and control examples was measured. The specifications of the fabrics of all examples and control examples were 4 cm × 4 cm, and the mechanical strength was measured in accordance with the method of FZ / T01085-2009 "Test Method for Peel Strength of Heat-Melt Adhesive Lining"; in addition, the moisture absorption and quick-drying performance of all examples and control examples was tested with reference to the test method of GB / T 21655.1-2008 "Assessment of Moisture Absorption and Quick-Drying Properties of Textiles". Finally, the antibacterial property was tested with reference to GB / T21510-2008 "Test Method for Antibacterial Properties of Nano-Inorganic Materials".

[0139] Table 1 Performance test of antistatic polyamide composite fabric

[0140]

[0141]

[0142] As can be seen from Table 1, among them, the results of Example 1 and Comparative Examples 1, 4, and 5 show that when polypropylene / modified graphene fibers are used to modify the existing bio-based polyamide, the antistatic resistance of the composite fabric is effectively improved. At the same time, the results of Comparative Examples 4 and 5 show that while the polypropylene / modified graphene fibers improve the antistatic performance, they also try to maintain a relatively high mechanical strength and have good usability.

[0143] The results of Example 2 and Comparative Examples 2 and 6 show that it is prepared from silicone oil, allyl polyether with terminal epoxy groups, and dodecene, and then formed after emulsification by an emulsifier. It has good hygroscopicity, can effectively penetrate into the interior of fabrics and yarns, and improve the quick-drying effect.

[0144] The results of Example 3 and Comparative Example 3 show that by compounding carbon powder with phenolic resin and surfactant, the obtained carbon beads have good stability, thereby enhancing the antibacterial performance of the multi-layer composite fabric.

[0145] In summary, an antistatic and quick-drying polyamide multi-layer composite fabric and its preparation method provided by the present invention have a composite structure of a modified layer, a hygroscopic layer, and a carbon bead layer, obtaining a composite fabric with good antistatic performance, good quick-drying effect and antibacterial effect, while avoiding a large reduction in mechanical properties and having good usability.

[0146] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc., made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An antistatic and quick-drying multi-layer composite nylon fabric, characterized in that, From the outside to the inside, it successively includes: a modified layer, a carbon bead layer, and a moisture absorption layer; Among them, the modified layer is prepared by using bio-based polyamide and modified graphene to prepare a modified graphene polyamide fabric, then blending it into yarn and weaving it; The carbon bead layer is prepared from carbon powder, phenolic resin, nano silver, and surfactant I; The moisture absorption layer is prepared by soaking bio-based polyamide in a moisture absorbent, then blending it into yarn and weaving it; The preparation method of the modified layer includes the following steps: Prepare modified graphene. Add surfactant II to graphene, disperse it by ultrasonic wave, filter it by suction, dry it, then add polypropylene, ball mill and blend it, and granulate it to obtain modified graphene; Add bio-based polyamide, blend it with modified graphene, melt spin it, and weave it to obtain the modified layer; the surfactant II is cetylpyridinium chloride, and the molar ratio of surfactant II to graphene is 2.5 - 5%.

2. The antistatic and quick-drying polyamide multi-layer composite fabric according to claim 1, characterized in that, The moisture absorbent includes the following components by weight: 80 - 100 parts of silicone oil, 12 - 20 parts of allyl polyether with terminal epoxy group, 45 - 60 parts of DMF, 18 - 24 parts of n-dodecene, 0.8 - 1.6 parts of chloroplatinic acid, and 30 - 42 parts of emulsifier.

3. The antistatic and quick-drying polyamide multi-layer composite fabric according to claim 1, characterized in that, The molar ratio of graphene to polypropylene is 0.03 - 0.05:

1.

4. The antistatic and quick-drying polyamide multi-layer composite fabric according to claim 2, characterized in that, The preparation method of the moisture absorbent includes the following steps: Weigh 80 - 100 parts of silicone oil, 12 - 20 parts of allyl polyether with terminal epoxy group, 45 - 60 parts of DMF, and 18 - 24 parts of n-dodecene according to the amount, put them into the reaction, mix and stir, and heat up to 75 - 80 °C; Then add 0.8 - 1.6 parts of chloroplatinic acid, keep the temperature for reaction for 1 - 2 h, cool down, distill, then add 30 - 42 parts of emulsifier, mix well, adjust the pH to 7 with acid to obtain the moisture absorbent.

5. The antistatic and quick-drying nylon multi-layer composite fabric according to claim 1, characterized in that For the carbon bead layer, the preparation method includes the following steps: Mix carbon powder and phenolic resin evenly, heat and stir to obtain mixture I, Then mix surfactant I and nano silver evenly to obtain mixture II, mix mixture I and mixture II evenly, heat and stir, and cure to obtain the carbon bead layer.

6. The antistatic and quick-drying polyamide multi-layer composite fabric according to claim 5, wherein The molar ratio of carbon powder to phenolic resin is 1.5 - 2:1, and the molar ratio of surfactant I to nano silver is 0.9 - 1:

1.

7. The antistatic and quick-drying polyamide multi-layer composite fabric according to claim 1, wherein, The soaking time of the bio-based polyamide in the moisture absorbent is 3 - 5 h, and the soaking temperature is 30 - 40 °C.

8. The preparation method of the antistatic and quick-drying polyamide multi-layer composite fabric according to any one of claims 1-7, characterized in that, The preparation method includes: Compound and weave the modified layer, the carbon bead layer, and the moisture absorption layer to obtain an antistatic and quick-drying polyamide multi-layer composite fabric.

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