Preparation method of a windbreaker made of a cut-resistant fabric

Abstract

The present invention discloses a preparation method of a windbreaker made of a cut-resistant fabric, relating to the technical field of woven fabrics, in particular to a woven fabric of multi-component fibers. After combining a flame retardant and montmorillonite powder, a spinning solution is prepared with ultra-high molecular weight polyethylene powder. Using a metal wire as the core yarn and the spinning solution as the wrapping yarn, coaxial wet spinning is carried out, and the fibers are subjected to an electric field treatment after spinning. Through montmorillonite as an intermediate substance, the flame retardant is evenly distributed in the ultra-high molecular weight polyethylene, which can promote the combination and uniform dispersion between the flame retardant and the ultra-high molecular weight polyethylene. The montmorillonite powder can also increase the mechanical strength of the ultra-high molecular weight polyethylene, resulting in the improvement of both the flame retardant performance and the cut-resistant performance of the finally obtained windbreaker, solving the problem of the decline in the cut-resistant and flame retardant performance of the windbreaker caused by the uneven combination and distribution of the flame retardant and the ultra-high molecular weight polyethylene in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of woven fabrics, in particular to a woven fabric of multi-component fibers, and particularly to a preparation method of a windbreaker made of a cut-resistant fabric. Background Art

[0002] During outdoor adventures, a windbreaker will come into contact with various sharp objects, such as rocks, tree branches, etc. The cut-resistant function can effectively prevent the windbreaker from being cut or torn, thus maintaining its integrity and protective performance. The cut-resistant function not only enhances the tear resistance of the windbreaker but also improves its overall durability. This enables the windbreaker to remain in good condition under long-term use and wear, extending its service life. When camping outdoors, activities such as campfires and barbecues can trigger fires. The flame-retardant function can, to a certain extent, prevent the spread of flames, reduce the harm of fires, and thus ensure the safety of users.

[0003] Ultra-high molecular weight polyethylene has extremely high tensile strength and wear resistance, which enables the fabric made of it to withstand friction and wear in the outdoor environment. This characteristic enables the windbreaker to remain intact even when facing complex road conditions and harsh environments during outdoor activities such as hiking and mountain climbing, providing lasting protection for users. Woven weaving makes the fibers form tight connections, reducing the gaps and sliding between the fibers. This tight interweaving structure helps to improve the wear resistance and tear resistance of the ultra-high molecular weight polyethylene fabric, enabling it to withstand the friction and tearing of external objects.

[0004] The ultra-high molecular weight of ultra-high molecular weight polyethylene results in strong intermolecular interactions and high entanglement between molecular chains. Although these characteristics endow ultra-high molecular weight polyethylene with excellent properties, they also cause its extremely high melt viscosity and low melt friction coefficient, making it difficult to add and disperse flame retardants during the processing, further affecting its flame-retardant performance. As a result, the flame-retardant performance of the windbreaker made of the fabric obtained by woven weaving of ultra-high molecular weight polyethylene decreases. Moreover, due to the uneven dispersion of the flame retardant, the mechanical properties of the combined fibers will decrease, resulting in a decrease in the cut-resistant ability of the windbreaker.

[0005] Therefore, it is necessary to improve the preparation method of the windbreaker made of ultra-high molecular weight polyethylene fabric in the prior art to solve the above problems. Summary of the Invention

[0006] The present invention overcomes the deficiencies of the prior art and provides a preparation method of a windbreaker made of a cut-resistant fabric, aiming to solve the problem that the uneven distribution of the flame retardant combined with ultra-high molecular weight polyethylene leads to the decline of the cut-resistant and flame-retardant performance of the windbreaker.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A preparation method of a windbreaker made of a cut-resistant fabric, comprising the following steps:

[0008] S1: Add a flame retardant, KH550 silane coupling agent, and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, then centrifugal grinding and drying to obtain modified nano-montmorillonite powder;

[0009] S2: Mix the modified nano-montmorillonite powder in S1 and ultra-high molecular weight polyethylene powder in dimethylformamide to obtain a spinning solution;

[0010] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber; Weave the modified ultra-high molecular weight polyethylene fiber by weaving to obtain a cut-resistant fabric;

[0011] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of a cut-resistant fabric.

[0012] In a preferred embodiment of the present invention, the flame retardant in S1 is one of PFR and IFR, and the particle size of the modified nano-montmorillonite powder is 100 - 200 nm.

[0013] In a preferred embodiment of the present invention, the mass ratio between the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant, and 50% ethanol solution in S1 is 10 - 20:5 - 10:1 - 2:70 - 85.

[0014] In a preferred embodiment of the present invention, the mass ratio between the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder, and dimethylformamide in S2 is 10 - 15:3 - 5:85 - 90, and the molecular weight of the ultra-high molecular weight polyethylene powder is 3 million - 5 million.

[0015] In a preferred embodiment of the present invention, the material of the metal wire in S3 is one or more of steel, copper, and aluminum, and the diameter of the metal wire is 50 - 100 μm.

[0016] In a preferred embodiment of the present invention, the electric field direction of the electric field treatment in S3 is parallel to the fiber axis.

[0017] In a preferred embodiment of the present invention, after the electric field treatment in S3, a coagulation bath is carried out, and the coagulation bath liquid is N-methylpyrrolidone.

[0018] In a preferred embodiment of the present invention, the diameter of the modified ultra-high molecular weight polyethylene fiber in S3 is 100 - 200 μm.

[0019] In a preferred embodiment of the present invention, the weaving method in S3 is plain weave.

[0020] To achieve the above object, the second technical solution adopted by the present invention is: a windbreaker made of a cut-resistant fabric.

[0021] The present invention solves the defects in the background technology and has the following beneficial effects:

[0022] (1) The present invention provides a preparation method of a windbreaker made of a cut-resistant fabric. After combining a flame retardant and montmorillonite powder, a spinning solution is prepared with ultra-high molecular weight polyethylene powder. Using a metal wire as the core yarn and the spinning solution as the wrapping yarn, coaxial wet spinning is carried out, and the fibers are subjected to an electric field treatment after spinning. Through montmorillonite as an intermediate substance, the flame retardant is evenly distributed in the ultra-high molecular weight polyethylene. Compared with the preparation method of a windbreaker made of a cut-resistant fabric in the prior art, it can promote the combination and uniform dispersion between the flame retardant and the ultra-high molecular weight polyethylene. The montmorillonite powder can also increase the mechanical strength of the ultra-high molecular weight polyethylene, resulting in the improvement of the flame retardant performance and cut resistance of the finally obtained windbreaker, and solving the problem of the decline in the cut resistance and flame retardant performance of the windbreaker caused by the uneven combination and distribution of the flame retardant and the ultra-high molecular weight polyethylene in the prior art.

[0023] (2) In the present invention, the nano-montmorillonite powder has a unique layered structure and a large specific surface area, and can form a dense barrier layer in combination with the flame retardant during the combustion process. Compared with the prior art, it can reduce the transfer of heat and oxygen, delay the combustion process, and thus improve the flame retardant performance of the material.

[0024] (3) In the present invention, when the electric field direction is parallel to the fiber axis, the electric field force will cause the fibers to be oriented along the electric field direction. Compared with the prior art, the oriented fiber structure helps to reduce the heat transfer rate during the combustion process. The oriented fibers can form a more effective heat insulation layer, thus slowing down the spread of the fire. The oriented arrangement and tight connection of the fibers make the fabric more stable during the combustion process and not easily break or deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0026] Figure 1 It is a flowchart of the method steps of the preferred embodiment of the present invention. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Many specific details are set forth in the following description in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0029] As Figure 1 shown, a preparation method of a windbreaker made of a cut-resistant fabric includes the following steps:

[0030] S1: Add a flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, centrifugal grinding and drying to obtain modified nano-montmorillonite powder; the addition of the flame retardant endows the nano-montmorillonite powder with flame retardant properties, providing basic fire protection for subsequent fibers and fabrics. The KH550 silane coupling agent can act as a bridge to enhance the binding force between the flame retardant, nano-montmorillonite powder and ultra-high molecular weight polyethylene, improving the overall compatibility and dispersion uniformity.

[0031] S2: Add the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mix to obtain a spinning solution; the uniform mixing of the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in dimethylformamide ensures the uniform distribution of each component in the spinning solution, providing a good foundation for the subsequent spinning process.

[0032] S3: Use the spinning solution in S2 as the covering yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric; using the metal wire as the core yarn and the spinning solution as the covering yarn, a fiber with a core-sheath structure can be prepared through the coaxial wet spinning technology. This structure not only improves the strength of the fiber but also helps the uniform distribution of the flame retardant in the fiber. Immediately performing an electric field treatment on the fiber after it comes out of the spinneret can further improve the orientation degree and structure of the fiber, thereby improving the mechanical properties and flame retardant properties of the fiber.

[0033] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of a cut-resistant fabric.

[0034] Preparation method of a windbreaker made of a cut-resistant fabric. After combining a flame retardant and montmorillonite powder, a spinning solution is prepared with ultra-high molecular weight polyethylene powder. Using a metal wire as the core yarn and the spinning solution as the wrapping yarn, coaxial wet spinning is carried out, and the fibers are subjected to an electric field treatment after spinning. By using montmorillonite as an intermediate substance, the flame retardant is evenly distributed in the ultra-high molecular weight polyethylene, which can promote the combination and uniform dispersion between the flame retardant and the ultra-high molecular weight polyethylene. The montmorillonite powder can also increase the mechanical strength of the ultra-high molecular weight polyethylene, resulting in improved flame retardant performance and cut-resistant performance of the finally obtained windbreaker, solving the problem of the decline in the cut-resistant and flame retardant performance of the windbreaker caused by the uneven combination and distribution of the flame retardant and the ultra-high molecular weight polyethylene in the prior art

[0035] Further, the flame retardant in S1 is one of PFR and IFR, and the particle size of the modified nano-montmorillonite powder is 100 - 200 nm. PFR, the full name is organophosphorus flame retardant, is a class of compounds containing phosphorus elements and is widely used in the flame retardant treatment of various polymer materials. This type of flame retardant can release phosphorus-containing free radicals during the combustion process, and these free radicals can capture hydrogen free radicals and hydroxyl free radicals in the combustion chain reaction, thereby interrupting the combustion chain reaction and achieving the purpose of flame retardant. In addition, PFR can also promote the formation of a carbon layer, improving the thermal stability and flame retardant performance of the material. IFR, the full name is intumescent flame retardant, is an environmentally friendly green flame retardant. It mainly consists of elements such as nitrogen and phosphorus, and does not contain harmful substances such as halogens and antimony oxides. During the combustion process, IFR can rapidly expand to form a carbonaceous foam layer, which can insulate heat, isolate oxygen, suppress smoke, and prevent the spread of flames

[0036] The nano-montmorillonite powder with a particle size in the range of 100 - 200 nm has a larger specific surface area and higher activity, and can be more evenly dispersed in the flame retardant and polymer materials. It helps to form a denser barrier layer and improve the flame retardant performance. The nano-scale montmorillonite particles can more effectively prevent the expansion of microcracks during the combustion process, thus playing a dual role of toughening and flame retardant. As an inorganic nano-particle, the nano-montmorillonite powder can significantly improve the mechanical strength of the polymer material, including tensile strength, impact strength and wear resistance, helping to enhance the cut-resistant performance of the windbreaker fabric and enabling it to maintain better integrity when facing the cutting of sharp objects

[0037] Furthermore, the mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution in S1 is 10-20:5-10:1-2:70-85. Within this mass ratio range, the proportion of the flame retardant is relatively high, ensuring its effective distribution in the modified nano-montmorillonite powder, which helps to rapidly form a carbon layer or release flame retardant gases during combustion, thus effectively preventing the spread of flames. The nano-montmorillonite powder, with its unique layered structure and large specific surface area, can form a dense barrier layer during combustion. This barrier layer can reduce the transfer of heat and oxygen, delay the combustion process, and thus improve the flame retardant performance of the material.

[0038] When the generation of the barrier layer integrating montmorillonite and flame retardancy reaches a certain degree, it will prevent the transfer of heat by accumulating heat. However, after accumulating to a certain extent, the barrier layer will burn again and release the heat suddenly, causing the fabric to burn. The metal wire core layer structure in the coaxial structure provides cut resistance while using the good thermal conductivity of the metal wire to cause the heat accumulated in the barrier layer to be transferred through the metal wire. And under the grid structure of the metal wire, the heat transfer is uniform, avoiding the combustion caused by local overheating of the windbreaker.

[0039] As an inorganic nano-particle, the nano-montmorillonite powder can significantly improve the mechanical strength of polymer materials. Within this mass ratio range, an appropriate amount of nano-montmorillonite powder can be evenly dispersed in the material, enhancing the tensile strength, impact strength and wear resistance of the material, thus improving the cut resistance of the windbreaker fabric.

[0040] Furthermore, the mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide in S2 is 10-15:3-5:85-90, and the molecular weight of the ultra-high molecular weight polyethylene powder is 3 million - 5 million. The ultra-high molecular weight polyethylene powder has an extremely high molecular weight, endowing the material with excellent heat resistance and chemical stability. At high temperatures, it can still maintain good mechanical properties and dimensional stability, helping to slow down the combustion speed and reduce the heat release rate. Within this mass ratio range, the proportions of the modified nano-montmorillonite powder and the ultra-high molecular weight polyethylene powder are appropriate, not only ensuring the improvement of flame retardant performance but also avoiding the decline of material properties caused by excessive flame retardants. As an inorganic nano-particle, the modified nano-montmorillonite powder can be evenly dispersed in the ultra-high molecular weight polyethylene matrix to form a nano-composite material. This composite material has higher strength and toughness, thus further improving the cut resistance of the windbreaker fabric.

[0041] Furthermore, the material of the metal wire in S3 is one or more of steel, copper, and aluminum, and the diameter of the metal wire is 50 - 100 μm. Due to its high strength and rigidity, the metal wire can significantly enhance the physical protection ability of the windbreaker fabric. When the fabric is subjected to cutting or tearing forces, the metal wire can effectively resist these external forces and prevent the fabric from being easily cut or torn. The metal wire is distributed in a mesh pattern in the fabric, which can disperse the cutting force over a larger area. This dispersion helps to reduce the cutting force per unit area and thus lower the risk of the fabric being cut.

[0042] The metal wire has a high thermal conductivity and thermal stability, which can help to disperse the heat generated during the combustion of the fabric to a certain extent. This helps to slow down the burning speed and reduce the risk of the fire spreading.

[0043] Furthermore, the electric field direction in the electric field treatment in S3 is parallel to the fiber axis, and the electric field strength at the fiber axis is 15 - 25 kV / m. When the electric field direction is parallel to the fiber axis, the electric field force will cause the fibers to be oriented along the electric field direction. This oriented fiber structure enables the fabric to resist external forces more effectively when subjected to cutting forces, thereby improving the cutting resistance of the fabric. The electric field treatment also enhances the bonding force between the fibers, making the fibers more tightly connected in the fabric. This tight connection helps to reduce the gaps between the fibers and lower the risk of the fabric being cut.

[0044] The oriented fiber structure helps to reduce the heat transfer rate during the combustion process. When the fabric burns, the oriented fibers can form a more effective heat insulation layer, thus slowing down the spread of the fire. The oriented arrangement and tight connection of the fibers make the fabric more stable during the combustion process and less likely to break or deform.

[0045] Furthermore, after the electric field treatment in S3, a coagulation bath is carried out, and the coagulation bath liquid is N-methylpyrrolidone. After the electric field treatment, the fibers are oriented under the action of the electric field force, and then through the coagulation bath treatment, N-methylpyrrolidone as a solvent helps to further fix the fiber structure and make the arrangement of the fibers more orderly and tight. The tight arrangement and orderly structure between the fibers make the fabric more difficult to be cut or torn, and can significantly improve the cutting resistance of the windbreaker fabric.

[0046] Through the coagulation bath treatment, the internal structure of the fibers is optimized, such as forming a denser fiber structure or improving the pore distribution inside the fibers. These optimizations help to slow down the heat transfer rate during the combustion process and thus improve the flame retardant performance of the fabric.

[0047] Further, the diameter of the modified ultra-high molecular weight polyethylene fiber in S3 is 100-200 μm. When the diameter of the modified ultra-high molecular weight polyethylene fiber is within the range of 100-200 μm, the fiber has higher strength. Such high-strength fibers can more effectively resist external forces when subjected to cutting forces, thereby prolonging the cutting resistance life of the windbreaker fabric. During the electric field treatment and coagulation bath process, finer fibers are more likely to achieve oriented arrangement and close connection. This optimized fiber arrangement structure can further improve the cutting resistance performance of the windbreaker fabric.

[0048] The finer fiber diameter helps the flame retardant to better penetrate into the fiber interior, thereby improving the dispersibility and persistence of the flame retardant in the fiber. This helps to enhance the flame retardant performance of the windbreaker fabric. The finer fiber diameter makes the fabric have better heat conduction performance. During the combustion process, heat can be transferred through the fiber to the fabric surface and dissipated more quickly, thereby reducing the temperature inside the fabric and slowing down the combustion speed.

[0049] Further, the weaving method in S3 is plain weaving. The characteristic of plain weaving is that the warp and weft yarns form a fabric in an over-under interweaving pattern. This interweaving pattern results in a large number of interlacing points on the fabric and a firm texture. The windbreaker fabric woven in plain weave has better abrasion resistance and can effectively resist physical damage such as cutting. There are many yarn buckling points, which helps to enhance the tear resistance of the fabric. When the fabric is subjected to a cutting force, the yarn buckling points can absorb and disperse the stress, thereby reducing the risk of the fabric being cut.

[0050] The surface of the fabric woven in plain weave is flat, which helps to reduce the gaps and pores on the fabric surface. During the combustion process, the flat surface can reduce the contact area between oxygen and the interior of the fabric, thereby slowing down the combustion speed to a certain extent. The fabric woven in plain weave has stable quality and strong binding force between fibers. Such high-quality fabric can maintain better integrity during the combustion process, is not easy to break or deform, and thus improves its flame retardant performance to a certain extent.

[0051] A windbreaker made of a cutting-resistant fabric is prepared by the preparation method of a windbreaker made of a cutting-resistant fabric.

[0052] Example 1

[0053] This example provides a windbreaker made of a cutting-resistant fabric, and the preparation method is as follows:

[0054] S1: Add the flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into a 50% ethanol solution, conduct ultrasonic dispersion, followed by centrifugal grinding and drying to obtain the modified nano-montmorillonite powder. The flame retardant in S1 is PFR. The particle size of the modified nano-montmorillonite powder is 150 nm. The mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 5:10:2:80.

[0055] S2: Add the modified nano-montmorillonite powder from S1 and ultra-high molecular weight polyethylene powder into dimethylformamide and mix them to obtain a spinning solution. The mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0056] S3: Use the spinning solution from S2 as the wrapping yarn and the metal wire as the core yarn to conduct coaxial wet spinning. After the fiber comes out of the spinneret, conduct electric field treatment to obtain the modified ultra-high molecular weight polyethylene fiber. Weave the modified ultra-high molecular weight polyethylene fiber by weaving to obtain the cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field during the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m. After the electric field treatment, conduct a coagulation bath. The coagulation bath liquid is N-methylpyrrolidone. The diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0057] S4: Sew the cut-resistant fabric from S3 with the outer layer of the windbreaker to obtain the windbreaker made of the cut-resistant fabric.

[0058] Example 2

[0059] This example provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0060] S1: Add the flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into a 50% ethanol solution, conduct ultrasonic dispersion, followed by centrifugal grinding and drying to obtain the modified nano-montmorillonite powder. The flame retardant in S1 is PFR. The particle size of the modified nano-montmorillonite powder is 150 nm. The mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 10:10:2:80.

[0061] S2: Add the modified nano-montmorillonite powder from S1 and ultra-high molecular weight polyethylene powder into dimethylformamide and mix them to obtain a spinning solution. The mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0062] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber. The modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, and after the electric field treatment, a coagulation bath is carried out. The coagulation bath liquid is N-methylpyrrolidone. The diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the machine weaving method is plain weaving.

[0063] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of the cut-resistant fabric.

[0064] Example 3

[0065] This example provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0066] S1: Add a flame retardant, KH550 silane coupling agent, and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, centrifugal grinding, and drying to obtain modified nano-montmorillonite powder. The flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant, and 50% ethanol solution is 15:10:2:80.

[0067] S2: Mix the modified nano-montmorillonite powder in S1 and ultra-high molecular weight polyethylene powder in dimethylformamide to obtain a spinning solution. The mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder, and dimethylformamide is 10:4:90.

[0068] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber. The modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, and after the electric field treatment, a coagulation bath is carried out. The coagulation bath liquid is N-methylpyrrolidone. The diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the machine weaving method is plain weaving.

[0069] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of the cut-resistant fabric.

[0070] Example 4

[0071] This embodiment provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0072] S1: Add a flame retardant, KH550 silane coupling agent, and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, followed by centrifugal grinding and drying to obtain modified nano-montmorillonite powder; the flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio between the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant, and 50% ethanol solution is 20:10:2:80.

[0073] S2: Mix the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder from S1 into dimethylformamide to obtain a spinning solution; the mass ratio between the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder, and dimethylformamide is 10:4:90.

[0074] S3: Use the spinning solution from S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber exits the spinneret, it undergoes electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber; weave the modified ultra-high molecular weight polyethylene fiber by weaving to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, after the electric field treatment, a coagulation bath is carried out, the coagulation bath liquid is N-methylpyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weaving.

[0075] S4: Sew the cut-resistant fabric from S3 with the outer layer of the windbreaker to obtain a windbreaker made of a cut-resistant fabric.

[0076] Example Five

[0077] This embodiment provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0078] S1: Add a flame retardant, KH550 silane coupling agent, and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, followed by centrifugal grinding and drying to obtain modified nano-montmorillonite powder; the flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio between the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant, and 50% ethanol solution is 25:10:2:80.

[0079] S2: Mix the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder from S1 into dimethylformamide to obtain a spinning solution; the mass ratio between the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder, and dimethylformamide is 10:4:90.

[0080] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber. The modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, after the electric field treatment, it is put into a coagulation bath, the coagulation bath liquid is N-methylpyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the machine weaving method is plain weaving.

[0081] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of the cut-resistant fabric.

[0082] Example 6

[0083] This example provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0084] S1: Add a flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion and then centrifugal grinding and drying to obtain modified nano-montmorillonite powder. The flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0085] S2: Mix the modified nano-montmorillonite powder in S1 and ultra-high molecular weight polyethylene powder in dimethylformamide to obtain a spinning solution. The mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0086] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber. The modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 10 kV / m, after the electric field treatment, it is put into a coagulation bath, the coagulation bath liquid is N-methylpyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the machine weaving method is plain weaving.

[0087] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of the cut-resistant fabric.

[0088] Example 7

[0089] This embodiment provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0090] S1: Add a flame retardant, KH550 silane coupling agent, and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, followed by centrifugal grinding and drying to obtain modified nano-montmorillonite powder; the flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant, and 50% ethanol solution is 15:10:2:80.

[0091] S2: Mix the modified nano-montmorillonite powder obtained in S1 and ultra-high molecular weight polyethylene powder in dimethylformamide to obtain a spinning solution; the mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder, and dimethylformamide is 10:4:90.

[0092] S3: Use the spinning solution in S2 as the wrapping yarn and a metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber; weave the modified ultra-high molecular weight polyethylene fiber by weaving to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 20 kV / m, a coagulation bath is carried out after the electric field treatment, the coagulation bath liquid is N-methylpyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weaving.

[0093] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of a cut-resistant fabric.

[0094] Example Eight

[0095] This embodiment provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0096] S1: Add a flame retardant, KH550 silane coupling agent, and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, followed by centrifugal grinding and drying to obtain modified nano-montmorillonite powder; the flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant, and 50% ethanol solution is 15:10:2:80.

[0097] S2: Mix the modified nano-montmorillonite powder obtained in S1 and ultra-high molecular weight polyethylene powder in dimethylformamide to obtain a spinning solution; the mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder, and dimethylformamide is 10:4:90.

[0098] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber. The modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 25 kV / m, after the electric field treatment, it is subjected to a coagulation bath, the coagulation bath liquid is N-methylpyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the machine weaving method is plain weave.

[0099] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of the cut-resistant fabric.

[0100] Example Nine

[0101] This example provides a windbreaker made of a cut-resistant fabric, and the preparation method is as follows:

[0102] S1: Add a flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into a 50% ethanol solution, perform ultrasonic dispersion, then centrifugal grinding and drying to obtain modified nano-montmorillonite powder. The flame retardant in S1 is PFR, the particle size of the modified nano-montmorillonite powder is 150 nm, and the mass ratio among the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0103] S2: Mix the modified nano-montmorillonite powder in S1 and ultra-high molecular weight polyethylene powder in dimethylformamide to obtain a spinning solution. The mass ratio among the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0104] S3: Use the spinning solution in S2 as the wrapping yarn and the metal wire as the core yarn for coaxial wet spinning. After the fiber comes out of the spinneret, it is subjected to an electric field treatment to obtain modified ultra-high molecular weight polyethylene fiber. The modified ultra-high molecular weight polyethylene fiber is woven by machine to obtain a cut-resistant fabric. The material of the metal wire is copper, the diameter of the metal wire is 80 μm, the direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 30 kV / m, after the electric field treatment, it is subjected to a coagulation bath, the coagulation bath liquid is N-methylpyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the machine weaving method is plain weave.

[0105] S4: Sew the cut-resistant fabric in S3 with the outer layer of the windbreaker to obtain a windbreaker made of the cut-resistant fabric.

[0106] Comparative Example One

[0107] S1: Add a flame retardant and ultra-high molecular weight polyethylene powder to dimethylformamide and mix them to obtain a spinning solution; the mass ratio among the flame retardant, ultra-high molecular weight polyethylene powder, and dimethylformamide is 10:4:90.

[0108] S2: Spin the spinning solution in S1 to obtain fibers, and perform weaving on the fibers to obtain a fabric.

[0109] S3: Sew the fabric in S2 with the outer layer of a windbreaker to obtain a windbreaker.

[0110] Take samples of the same mass from the windbreakers in Example 1 - 9 and Comparative Example 1 for testing the flame retardant performance and cut resistance performance. The flame retardant performance test refers to GB / T5454. The cut resistance performance test is specifically to cut the sample with a cutting tool, and the pressure and speed of the tool should meet the requirements of the ASTM F1790 standard. The specific data is shown in Table 1.

[0111] Table 1 Experimental data of flame retardant performance and cut resistance performance of Examples 1 - 9 and the comparative example

[0112]

[0113] As can be seen from Table 1, the cut resistance grades in Examples 1 - 9 are all greater than or equal to that of Comparative Example 1, and the limiting oxygen indices are all greater than that of Comparative Example 1. This application has superiority.

[0114] In Examples 1 - 5, as the proportion of montmorillonite in the modified nano-montmorillonite powder gradually increases, the cut resistance grade and limiting oxygen index of the sample first increase and then decrease. This is because the nano-montmorillonite particles play a role of heterogeneous nucleation in ultra-high molecular weight polyethylene, strengthening the structure of the material, effectively preventing the expansion of microcracks, and improving the anti-cutting performance of the material. However, when the content of nano-montmorillonite is too high, it will agglomerate together to form stress concentration points, reducing the overall strength of the material, resulting in a decrease in the cut resistance performance of the windbreaker; nano-montmorillonite itself has a certain flame retardant effect. As the content of nano-montmorillonite increases, its distribution in the polymer becomes more uniform, which can more effectively prevent the spread of flames, thus increasing the limiting oxygen index of the material; too much nano-montmorillonite will overly restrict the movement of molecular chains, resulting in the material being less likely to form a carbon layer during combustion, thereby reducing the limiting oxygen index and causing a decrease in the flame retardant performance of the windbreaker. The preferred example is Example 3.

[0115] In Examples 3 and 6 to 9, as the electric field strength at the fiber axis gradually increases, the cutting resistance grade and limiting oxygen index of the sample first increase and then decrease. This is because under the action of the electric field, montmorillonite particles and metal wires will be subject to a certain electric field force, resulting in a fine adjustment of their relative positions. This fine adjustment makes the distribution of montmorillonite particles in the fiber more uniform, thereby enhancing the overall performance of the fiber. The electric field also promotes the diffusion and distribution of flame retardant molecules in the fiber, making them cover the fiber surface and interior more evenly, improving the flame retardant performance of the fiber. When the electric field strength is too high, an overly strong electric field force will be generated, causing significant changes in the relative positions between montmorillonite particles and metal wires, resulting in agglomeration or separation phenomena. Such agglomeration or separation will reduce the overall performance of the fiber, thus affecting its cutting resistance grade and limiting oxygen index.

[0116] Under the action of the electric field, flame retardant molecules will be subject to a certain electric field force and be oriented along the fiber axis direction. This orientation makes the distribution of flame retardant molecules in the fiber more uniform, thereby improving the flame retardant performance of the fiber. The electric field also promotes the interaction between flame retardant molecules and the fiber matrix, enhancing the binding force between the flame retardant and the fiber, making it adhere more firmly to the fiber surface and interior. An overly high electric field strength also causes the interaction between flame retardant molecules and the fiber matrix to weaken or be damaged, thereby reducing the binding force between the flame retardant and the fiber, making it easier to fall off or decompose from the fiber surface. The preferred example is Example 7.

[0117] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A method for preparing a jacket made of cut-resistant fabric, characterized in that: The following steps are involved: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into 50% ethanol solution, perform ultrasonic dispersion and centrifugal grinding and drying to obtain modified nano-montmorillonite powder; S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing to obtain a spinning solution; S3: Using the spinning solution in S2 as a wrapping yarn and a metal wire as a core yarn, coaxial wet spinning is performed, wherein the metal wire is made of one or more of steel, copper, and aluminum, and has a diameter of 50-100 μm. After the fiber emerges from the spinneret, it is subjected to an electric field treatment, wherein the electric field direction of the electric field treatment is parallel to the fiber axis, and the electric field intensity at the fiber axis is 15-25 kV / m, to obtain a modified ultra-high molecular weight polyethylene fiber; and the modified ultra-high molecular weight polyethylene fiber is woven by a machine to obtain a cut-resistant fabric. S4: Sewing the cut-resistant fabric in S3 to the outer layer of the jacket to obtain a jacket made of the cut-resistant fabric.

2. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: The flame retardant in S1 is one of PFR and IFR, and the particle size of the modified nano-montmorillonite powder is 100-200 nm.

3. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: The mass ratio of the nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution in S1 is 10-20: 5-10: 1-2: 70-85.

4. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: The mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide in S2 is 10-15:3-5:85-90, and the molecular weight of the ultra-high molecular weight polyethylene powder is 3 million to 5 million.

5. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: After the electric field treatment in S3, a coagulation bath is performed, and the coagulation bath liquid is methyl pyrrolidone.

6. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: The diameter of the modified ultra-high molecular weight polyethylene fiber in S3 is 100-200 μm.

7. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: The weaving method in S3 is plain weaving.

8. A jacket made of cut-resistant fabric, characterized by: The invention is prepared by the method for preparing a jacket made of cut-resistant fabric according to any one of claims 1 to 7.

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