Preparation method of outdoor jacket made of cut-resistant fabric

Abstract

The invention discloses a preparation method of an outdoor jacket made of a cutting-resistant fabric, and relates to the technical field of woven fabrics, in particular to a multi-component fiber woven fabric, which is prepared by combining a flame retardant and montmorillonite powder, preparing the combined flame retardant and montmorillonite powder and ultra-high molecular weight polyethylene powder into a spinning solution, and using metal wires as core yarns to prepare the multi-component fiber woven fabric. According to the preparation method, coaxial wet spinning is carried out by taking a spinning solution as a wrapping line, fibers are subjected to electric field treatment after spinning, and montmorillonite is taken as an intermediate substance, so that a flame retardant is uniformly distributed in ultra-high molecular weight polyethylene, and combination and uniform dispersion between the flame retardant and the ultra-high molecular weight polyethylene can be promoted; the montmorillonite powder can also increase the mechanical strength of the ultra-high molecular weight polyethylene, so that the flame retardant property and the cutting resistance of the finally obtained outdoor jacket are improved, and the problem that the cutting resistance and the flame retardant property of the outdoor jacket are reduced due to the fact that the flame retardant and the ultra-high molecular weight polyethylene are not uniformly combined and distributed in the prior art is solved.

Description

Technical Field

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

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

[0003] Ultra-high molecular weight polyethylene has extremely high tensile strength and abrasion resistance, which enables fabrics made from it to resist friction and wear in outdoor environments. This feature allows the jacket to remain intact during outdoor activities such as hiking and mountaineering, even in complex road conditions and harsh environments, providing users with lasting protection. Woven weaving allows the fibers to form a tight connection, reducing gaps and slippage between fibers. This tightly interwoven structure helps to improve the wear resistance and tear resistance of ultra-high molecular weight polyethylene fabrics, enabling them to resist friction and tearing from external objects.

[0004] The ultra-high molecular weight of ultra-high molecular weight polyethylene leads to strong intermolecular interactions and high entanglement between molecular chains. Although these characteristics give ultra-high molecular weight polyethylene excellent performance, they also cause its extremely high melt viscosity and low melt friction coefficient, making it difficult to add and disperse flame retardants during processing, further affecting its flame retardant properties, thereby reducing the flame retardant properties of jackets made of fabrics woven from ultra-high molecular weight polyethylene, and due to the uneven dispersion of flame retardants, the mechanical properties of the combined fibers will be reduced, resulting in a decrease in the cut resistance of the jackets.

[0005] Therefore, it is necessary to improve the preparation method of the jacket 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 shortcomings of the prior art and provides a method for preparing a jacket made of cut-resistant fabric, aiming to solve the problem in the prior art that the uneven distribution of flame retardants and ultra-high molecular weight polyethylene leads to a decrease in the cut resistance and flame retardancy of the jacket.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a method for preparing a jacket made of cut-resistant fabric, comprising the following steps: S1: adding flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into 50% ethanol solution, performing 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 the wrapping yarn and the metal wire as the core yarn to perform coaxial wet spinning, and performing electric field treatment on the fibers after they come out of the spinneret to obtain modified ultra-high molecular weight polyethylene fibers; and weaving the modified ultra-high molecular weight polyethylene fibers to obtain cut-resistant fabrics; 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.

[0008] 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.

[0009] In a preferred embodiment of the present invention, 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.

[0010] In a preferred embodiment of the present invention, the mass ratio of the modified nano-montmorillonite powder, the 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.

[0011] 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.

[0012] In a preferred embodiment of the present invention, the direction of the electric field in the electric field treatment in S3 is parallel to the fiber axis.

[0013] In a preferred embodiment of the present invention, a coagulation bath is performed after the electric field treatment in S3, and the coagulation bath liquid is methyl pyrrolidone.

[0014] 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.

[0015] In a preferred embodiment of the present invention, the weaving method in S3 is plain weaving.

[0016] In order to achieve the above-mentioned purpose, the second technical solution adopted by the present invention is: a jacket made of cut-resistant fabric.

[0017] The present invention solves the defects existing in the background technology and has the following beneficial effects: (1) The present invention provides a method for preparing a jacket made of cut-resistant fabric, comprising combining a flame retardant and montmorillonite powder, and configuring the mixture with ultra-high molecular weight polyethylene powder into a spinning solution, using a metal wire as a core yarn and the spinning solution as a wrapping wire, and performing coaxial wet spinning. After spinning, the fiber is subjected to electric field treatment, and montmorillonite is used as an intermediate substance to uniformly distribute the flame retardant in the ultra-high molecular weight polyethylene. Compared with the method for preparing a jacket made of cut-resistant fabric in the prior art, the method can promote the combination and uniform dispersion of the flame retardant and the ultra-high molecular weight polyethylene, and the montmorillonite powder can also increase the mechanical strength of the ultra-high molecular weight polyethylene, so that the flame retardant and cut resistance of the jacket are improved, thereby solving the problem that the uneven combination and distribution of the flame retardant and the ultra-high molecular weight polyethylene in the prior art leads to a decrease in the cut resistance and flame retardant properties of the jacket.

[0018] (2) In the present invention, the nano-montmorillonite powder has a unique layered structure and a large specific surface area, and can combine with the flame retardant to form a dense barrier layer 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 properties of the material.

[0019] (3) In the present invention, when the direction of the electric field is parallel to the fiber axis, the electric field force will cause the fibers to align along the direction of the electric field. 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, thereby 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a method step diagram of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1 As shown, a method for preparing a jacket made of cut-resistant fabric comprises the following steps: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into 50% ethanol solution, perform ultrasonic dispersion, centrifugal grinding and drying to obtain modified nano-montmorillonite powder; the addition of flame retardant makes nano-montmorillonite powder have flame retardant properties, providing basic fire protection for subsequent fibers and fabrics. KH550 silane coupling agent can act as a bridge to enhance the binding force between flame retardant, nano-montmorillonite powder and ultra-high molecular weight polyethylene, and improve the overall compatibility and dispersion uniformity.

[0024] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; uniform mixing of the modified nano-montmorillonite powder and the ultra-high molecular weight polyethylene powder in dimethylformamide ensures uniform distribution of the components in the spinning solution, providing a good foundation for the subsequent spinning process.

[0025] S3: The spinning solution in S2 is used as the wrapping yarn and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is treated with an electric field after it comes out of the spinneret to obtain a modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the metal wire is used as the core yarn and the spinning solution is used as the wrapping yarn. Through the coaxial wet spinning technology, a fiber with a core-sheath structure can be prepared. This structure not only improves the strength of the fiber, but also helps to evenly distribute the flame retardant in the fiber. The fiber is immediately treated with an electric field after it comes out of the spinneret, which can further improve the orientation and structure of the fiber, thereby improving the mechanical properties and flame retardant properties of the fiber.

[0026] 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.

[0027] A method for preparing a jacket made of cut-resistant fabric comprises the following steps: combining a flame retardant and montmorillonite powder, configuring the mixture with ultra-high molecular weight polyethylene powder into a spinning solution, using a metal wire as a core yarn and the spinning solution as a wrapping wire, performing coaxial wet spinning, and subjecting the fiber to electric field treatment after spinning; using montmorillonite as an intermediate substance to uniformly distribute the flame retardant in the ultra-high molecular weight polyethylene, promoting the combination and uniform dispersion of the flame retardant and the ultra-high molecular weight polyethylene; and the montmorillonite powder can also increase the mechanical strength of the ultra-high molecular weight polyethylene, so that the flame retardant and cut-resistant properties of the jacket are improved, thereby solving the problem of uneven combination and distribution of the flame retardant and the ultra-high molecular weight polyethylene in the prior art, which leads to a decrease in the cut-resistant and flame retardant properties of the jacket. Furthermore, the flame retardant in S1 is one of PFR and IFR, and the particle size of the modified nano-montmorillonite powder is 100-200nm. PFR, the full name of which is organic phosphorus flame retardant, is a class of compounds containing phosphorus elements and is widely used in flame retardant treatment of various polymer materials. This type of flame retardant can release phosphorus-containing free radicals during the combustion process. 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 retardancy. In addition, PFR can also promote the formation of a carbon layer and improve the thermal stability and flame retardant properties of the material. IFR, the full name of which is intumescent flame retardant, is an environmentally friendly green flame retardant. It is mainly composed of elements such as nitrogen and phosphorus, and does not contain harmful substances such as halogens and antimony oxide. During the combustion process, IFR can rapidly expand to form a carbon foam layer, which can insulate, isolate oxygen, suppress smoke, and prevent the spread of flames.

[0028] Nano-montmorillonite powder with a particle size in the range of 100-200nm has a larger specific surface area and higher activity, and can be more evenly dispersed in flame retardants and polymer materials. It helps to form a denser barrier layer and improve flame retardant properties. Nano-scale montmorillonite particles can more effectively prevent the expansion of microcracks during the combustion process, thereby playing a dual role of toughening and flame retardancy. As an inorganic nanoparticle, nano-montmorillonite powder can significantly improve the mechanical strength of polymer materials, including tensile strength, impact strength and wear resistance, and help enhance the cut resistance of the jacket fabric, so that it can maintain better integrity when facing the cutting of sharp objects.

[0029] Furthermore, 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. 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 quickly form a carbon layer or release flame-retardant gas during the combustion process, thereby effectively preventing the spread of flames. Nano-montmorillonite powder, with its unique layered structure and large specific surface area, can form a dense barrier layer during the combustion process. This barrier layer can reduce the transfer of heat and oxygen, delay the combustion process, and thus improve the flame retardant properties of the material.

[0030] When the barrier layer of montmorillonite and flame retardant is generated to a certain extent, it will prevent the transfer of heat by accumulating heat, but when it accumulates to a certain extent, the barrier layer will burn again, and the heat will be released all at once, causing the fabric to burn. The metal wire core layer structure in the coaxial structure provides cut resistance while utilizing the good thermal conductivity of the metal wire, so that the heat accumulated in the barrier layer is transferred through the metal wire, and under the grid structure of the metal wire, the heat is transferred evenly, avoiding local overheating of the jacket and burning.

[0031] As an inorganic nanoparticle, 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, thereby improving the cut resistance of the jacket fabric.

[0032] Furthermore, 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 to 5 million. The ultra-high molecular weight polyethylene powder has an extremely high molecular weight, which gives the material excellent heat resistance and chemical stability. At high temperatures, it can still maintain good mechanical properties and dimensional stability, which helps to slow down the combustion rate and reduce the heat release rate. Within this mass ratio range, the ratio of modified nano-montmorillonite powder to ultra-high molecular weight polyethylene powder is moderate, which not only ensures the improvement of flame retardant properties, but also avoids the degradation of material properties caused by excessive flame retardants. As an inorganic nanoparticle, 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, thereby further improving the cut resistance of the jacket fabric.

[0033] 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 50-100μm. The metal wire, with its high strength and rigidity, can significantly enhance the physical protection capability of the jacket 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 scratched or torn. The metal wires are distributed in a mesh-like manner in the fabric, which can disperse the cutting force to a larger area. This dispersion effect helps to reduce the cutting force per unit area, thereby reducing the risk of the fabric being cut.

[0034] Metallic threads have high thermal conductivity and thermal stability, which can help disperse the heat generated by the fabric during combustion to a certain extent. This helps slow down the burning speed and reduce the risk of fire spreading.

[0035] Furthermore, the electric field direction of the electric field treatment in S3 is parallel to the fiber axis, and the electric field strength at the fiber axis is 15-25kV / m. When the electric field direction is parallel to the fiber axis, the electric field force will cause the fibers to align in the direction of the electric field. This oriented fiber structure enables the fibers to resist external forces more effectively when the fabric is subjected to cutting forces, thereby improving the fabric's cut resistance. 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 reduce the risk of the fabric being cut.

[0036] The oriented fiber structure helps reduce the speed of heat transfer during combustion. When the fabric burns, the oriented fibers can form a more effective insulation layer, thereby slowing the spread of fire. The oriented arrangement and tight connection of the fibers make the fabric more stable during combustion and less likely to break or deform.

[0037] Furthermore, in S3, a coagulation bath is performed after the electric field treatment, and the coagulation bath liquid is methyl pyrrolidone. After the electric field treatment, the fibers are oriented under the action of the electric field force, and then treated with a coagulation bath. Methyl pyrrolidone as a solvent helps to further fix the fiber structure, making the arrangement between fibers more orderly and tight. The tight arrangement and orderly structure between fibers make the fabric more difficult to be cut or torn, which can significantly improve the cut resistance of the jacket fabric.

[0038] Through the coagulation bath treatment, the internal structure of the fiber is optimized, such as forming a denser fiber structure or improving the pore distribution inside the fiber. These optimizations help slow down the transfer of heat during combustion, thereby improving the flame retardant performance of the fabric.

[0039] Furthermore, 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 in the range of 100-200 μm, the fiber has a higher strength. This high-strength fiber can more effectively resist external forces when subjected to cutting forces, thereby extending the cut-resistant life of the jacket fabric. During the electric field treatment and coagulation bath process, thinner fibers are more easily oriented and tightly connected. This optimized fiber arrangement structure can further improve the cut-resistant performance of the jacket fabric.

[0040] A finer fiber diameter helps the flame retardant penetrate better into the fiber, thereby improving the dispersion and durability of the flame retardant in the fiber. This helps to enhance the flame retardant properties of the jacket fabric. A finer fiber diameter allows the fabric to have better thermal conductivity. During the combustion process, heat can be transferred to the surface of the fabric faster through the fiber and dissipated, thereby reducing the temperature inside the fabric and slowing down the combustion rate.

[0041] Furthermore, the weaving method in S3 is plain weave. The characteristic of plain weave is that the warp yarn and the weft yarn are interwoven in an up-and-down manner to form a fabric. This interweaving method results in many interweaving points and a strong texture of the fabric. Plain weave jacket fabric has better wear resistance and can effectively resist physical damage such as cutting. The yarn has many bending points, which helps to enhance the tear resistance of the fabric. When the fabric is subjected to cutting force, the yarn bending points can absorb and disperse the stress, thereby reducing the risk of the fabric being cut.

[0042] The surface of plain woven fabrics is flat, which helps to reduce the gaps and pores on the surface of the fabric. During the combustion process, the flat surface can reduce the contact area between oxygen and the inside of the fabric, thereby slowing down the combustion speed to a certain extent. Plain woven fabrics have stable quality and strong bonding between fibers. This high-quality fabric can maintain better integrity during the combustion process and is not easy to break or deform, thereby improving its flame retardant properties to a certain extent.

[0043] A jacket made of cut-resistant fabric is prepared by a method for preparing a jacket made of cut-resistant fabric.

[0044] Embodiment 1

[0045] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 5:10:2:80.

[0046] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0047] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0048] 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.

[0049] Embodiment 2

[0050] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 10:10:2:80.

[0051] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0052] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0053] 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.

[0054] Embodiment 3

[0055] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0056] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0057] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0058] 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.

[0059] Embodiment 4

[0060] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 20:10:2:80.

[0061] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

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

[0063] 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.

[0064] Embodiment 5

[0065] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 25:10:2:80.

[0066] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0067] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field strength at the fiber axis is 15 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0068] 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.

[0069] Embodiment 6

[0070] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0071] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0072] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field intensity at the fiber axis is 10 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0073] 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.

[0074] Embodiment 7

[0075] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0076] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0077] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field intensity at the fiber axis is 20 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0078] 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.

[0079] Embodiment 8

[0080] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0081] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0082] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field intensity at the fiber axis is 25 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0083] 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.

[0084] Embodiment 9

[0085] This embodiment provides a jacket made of cut-resistant fabric, and the preparation method is as follows: S1: Add flame retardant, KH550 silane coupling agent and nano-montmorillonite powder to 50% ethanol solution, perform ultrasonic dispersion and 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 150nm, and the mass ratio of nano-montmorillonite powder, KH550 silane coupling agent, flame retardant and 50% ethanol solution is 15:10:2:80.

[0086] S2: adding the modified nano-montmorillonite powder and ultra-high molecular weight polyethylene powder in S1 into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the modified nano-montmorillonite powder, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0087] S3: The spinning solution in S2 is used as the wrapping wire and the metal wire is used as the core yarn for coaxial wet spinning. The fiber is subjected to electric field treatment after coming out of the spinneret to obtain modified ultra-high molecular weight polyethylene fiber; the modified ultra-high molecular weight polyethylene fiber is woven to obtain a cut-resistant fabric; the material of the metal wire is copper, the diameter of the metal wire is 80 μm, the electric field direction of the electric field treatment is parallel to the fiber axis, the electric field intensity at the fiber axis is 30 kV / m, a coagulation bath is performed after the electric field treatment, the coagulation bath liquid is methyl pyrrolidone, the diameter of the modified ultra-high molecular weight polyethylene fiber is 150 μm, and the weaving method is plain weave.

[0088] 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.

[0089] Comparative Example 1 S1: adding a flame retardant and ultra-high molecular weight polyethylene powder into dimethylformamide and mixing them to obtain a spinning solution; the mass ratio of the flame retardant, ultra-high molecular weight polyethylene powder and dimethylformamide is 10:4:90.

[0090] S2: Spinning the spinning solution in S1 to obtain fibers, and weaving the fibers to obtain fabrics.

[0091] S3: Sew the fabric in S2 to the outer layer of the jacket to obtain the jacket.

[0092] Samples of equal mass from the jackets in Example 19 and Comparative Example 1 were tested for flame retardancy and cut resistance. The flame retardancy test referred to GB / T5454. The cut resistance test specifically involved cutting the sample with a cutting tool. The pressure and speed of the tool should comply with the requirements of ASTM F1790. The specific data are shown in Table 1.

[0093] Table 1 Experimental data of flame retardancy and cut resistance of Examples 1 to 9 and Comparative Examples

[0094] It can be seen from Table 1 that the cut resistance levels in Examples 1 to 9 are all greater than or equal to the cut resistance level of Comparative Example 1, and the limiting oxygen index is greater than the limiting oxygen index of Comparative Example 1, and the present application has superiority.

[0095] In Examples 1 to 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 heterogeneous nucleation role in ultra-high molecular weight polyethylene, strengthen the structure of the material, effectively prevent the expansion of microcracks, and improve the material's cut resistance. However, when the content of nano-montmorillonite is too high, it will agglomerate together to form stress concentration points, reduce the overall strength of the material, and reduce the cut resistance of the jacket; nano-montmorillonite itself has a certain flame retardant effect. As the content of nano-montmorillonite increases, its distribution in the polymer is more uniform, which can more effectively prevent the spread of flames, thereby improving the limiting oxygen index of the material; too much nano-montmorillonite will excessively restrict the movement of the molecular chain, resulting in the material being difficult to form a carbon layer during the combustion process, thereby reducing the limiting oxygen index, causing the flame retardant performance of the jacket to decrease. The preferred embodiment is Example 3.

[0096] In Example 3 and Examples 6 to 9, as the electric field strength at the fiber axis gradually increases, the cut resistance level and limiting oxygen index of the samples first increase and then decrease. This is because under the action of the electric field, the montmorillonite particles and the metal wires will be subjected to a certain electric field force, resulting in fine-tuning of their relative positions. This fine-tuning 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 more evenly covered on the fiber surface and interior, thereby improving the flame retardant properties of the fiber; when the electric field strength is too high, an excessively strong electric field force will be generated, resulting in a significant change in the relative position between the montmorillonite particles and the metal wires, resulting in agglomeration or separation, which will reduce the overall performance of the fiber, thereby affecting its cut resistance level and limiting oxygen index.

[0097] Under the action of the electric field, the flame retardant molecules will be subjected to a certain electric field force and be oriented along the fiber axis. This oriented arrangement makes the distribution of the flame retardant molecules in the fiber more uniform, thereby improving the flame retardant properties of the fiber. The electric field also promotes the interaction between the flame retardant molecules and the fiber matrix, enhances the bonding force between the flame retardant and the fiber, and makes it more firmly attached to the fiber surface and inside. Excessive electric field strength also weakens or destroys the interaction between the flame retardant molecules and the fiber matrix, thereby reducing the bonding force between the flame retardant and the fiber, making it easier to fall off or decompose from the fiber surface. The preferred embodiment is embodiment seven.

[0098] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present 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: adding flame retardant, KH550 silane coupling agent and nano-montmorillonite powder into 50% ethanol solution, performing 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 the wrapping yarn and the metal wire as the core yarn to perform coaxial wet spinning, and performing electric field treatment on the fibers after they come out of the spinneret to obtain modified ultra-high molecular weight polyethylene fibers; and weaving the modified ultra-high molecular weight polyethylene fibers to obtain cut-resistant fabrics; 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: 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.

6. The method for preparing a jacket made of cut-resistant fabric according to claim 1, characterized in that: The electric field direction of the electric field treatment in S3 is parallel to the fiber axis.

7. 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.

8. 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.

9. 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.

10. A jacket made of cut-resistant fabric, characterized in that: It is prepared by the method for preparing a jacket made of cut-resistant fabric according to any one of claims 1-9.

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