Arc-proof fabric, preparation method thereof and application of arc-proof fabric in arc-proof hood

Abstract

The preparation method of the arc-proof fabric comprises the following steps that modified aramid fibers, nylon fibers and viscose fibers are compounded according to the weight ratio of 3: 2: 2, then scutching, cotton carding, 3-5 times of drawing, roving, spinning and spooling are conducted in sequence, warp yarn and weft yarn are prepared, the prepared warp yarn and weft yarn are interwoven through an air jet loom, and the arc-proof fabric is prepared. According to the arc-proof fabric, the modified aramid fibers, the nylon fibers and the viscose fibers are blended and matched, then the fabric is interwoven by a weaving machine through a specific process, the modified aramid fibers are improved by aramid fibers through a specific modification solution, silicon carbide in the modification solution is subjected to thermal improvement, the activity efficiency of the modified aramid fibers is optimized, and the arc-proof performance of the fabric is improved. The aramid fiber is further improved by improving the modified liquid and blending and optimizing the raw materials in the modified liquid, so that the electric arc prevention and mechanical properties of the prepared product system are coordinated and improved, and meanwhile, the corrosion-resistant stability effect of the product is remarkable.

Description

Technical Field

[0001] This invention relates to the field of anti-arc hood technology, specifically to an anti-arc fabric, its preparation method, and its application in anti-arc hoods. Background Technology

[0002] Arc flash accidents frequently occur in production operations in industries such as power, metallurgy, and chemicals. The high temperature, intense light, and shock waves generated by arc flashes can cause serious injuries to the head, face, and neck of workers. Therefore, specialized arc flash protection equipment is needed. Arc flash protection fabric is the core material of this equipment, and its performance directly determines the protective effect. Existing arc flash protection fabrics have poor arc flash protection performance and poor mechanical properties. It is difficult to coordinate and improve the arc flash protection and mechanical properties of the products. In addition, the products have poor corrosion resistance, which further limits their efficiency. Based on this, the present invention further improves upon these properties. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the purpose of this invention is to provide an anti-arc fabric, its preparation method and its application in an anti-arc headgear, so as to solve the problems mentioned in the background art.

[0004] The present invention solves the technical problem by adopting the following technical solution: This invention provides a method for preparing an anti-arc fabric, comprising the following steps: Modified aramid fiber, nylon fiber and viscose fiber are compounded in a weight ratio of 3:2:2, and then processed sequentially through cotton cleaning, carding, 3-5 drawing, roving, spinning and winding processes to obtain warp and weft yarns. The obtained warp and weft yarns are interwoven through an air-jet loom to produce an anti-arc fabric.

[0005] Preferably, the twist of the fine yarn is 800-1200 twists / m, and the yarn linear density is 20-40 tex; the weaving parameters of the air-jet loom are 40-60 warp ends / cm, 30-50 weft ends / cm, and 500-600 rpm.

[0006] Preferably, the method for preparing the modified aramid fiber is as follows: S01: Preparation of the modified liquid: S01a: Add 2-5 parts of titanium dioxide and 2-3 parts of boron nitride agent to 3-5 parts of lanthanum chloride solution and stir evenly to obtain titanium dioxide solution; S01b: Mix 1-3 parts glass fiber, 2-4 parts sodium silicate solution and 2-3 parts bentonite evenly to obtain bentonite liquid; stir titanium dioxide liquid and bentonite liquid at a weight ratio of 3:5 to obtain modified liquid. S02: Heat-treat silicon carbide at 110-120℃ for 10-15 min, then cool it to 55℃ at a rate of 1-3℃ / min and keep it at that temperature; stir the silicon carbide and the modified liquid at a weight ratio of 5:(8-11) to modify it. After stirring, a silicon carbide-based modifier is obtained. S03: Aramid fibers and silicon carbide-based modifiers are ultrasonically treated at a weight ratio of 7:(19-21). After ultrasonic treatment, the fibers are dried to obtain modified aramid fibers.

[0007] Preferably, the lanthanum chloride solution has a mass fraction of 2-5%; and the sodium silicate solution has a mass fraction of 5-8%.

[0008] Preferably, the stirring speed for the stirring modification treatment is 350-400 r / min, and the stirring time is 1 h; the ultrasonic power for the ultrasonic treatment is 550-750 w, and the ultrasonic treatment time is 2 h.

[0009] Preferably, the boron nitride agent is prepared by: Boron nitride was irradiated in a proton irradiation chamber for 1 hour at an irradiation power of 350-400W to obtain irradiated boron nitride. The irradiated boron nitride and the treatment solution were stirred thoroughly at a weight ratio of 5:(8-11), then filtered and dried to obtain boron nitride agent. The treatment solution comprises the following raw materials in parts by weight: 2-5 parts yttrium oxide, 3-5 parts hydroxyl silicone oil, 5-8 parts β-cyclodextrin solution, and 4-7 parts calcium sulfate whiskers.

[0010] Preferably, the β-cyclodextrin solution is prepared by mixing β-cyclodextrin, silane coupling agent KH560 and ethanol solution in a weight ratio of (2-5):1:(7-9) until homogeneous.

[0011] Preferably, the ethanol solution has a mass fraction of 75-85%.

[0012] The present invention also provides a method for preparing an arc-resistant fabric.

[0013] The present invention also provides a method for preparing an arc-proof fabric and its application in an arc-proof headgear.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The anti-arc fabric of this invention is made by blending and coordinating modified aramid fibers, nylon fibers, and viscose fibers, followed by a specific process and then weaving them together on a loom. The modified aramid fibers are improved by the specific modifying liquid of this invention. The silicon carbide in the modifying liquid is thermally modified to optimize its activity. Combined with the modification liquid, the raw materials in the modifying liquid are mutually blended and optimized, further improving the aramid fibers. As a result, the product system has a coordinated improvement in anti-arc and mechanical properties, and the product has a significant effect on corrosion resistance and stability. Attached Figure Description

[0015] Figure 1 This is an external view of the anti-arc head cover of the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to specific examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] The method for preparing an anti-arc fabric according to this embodiment includes the following steps: Modified aramid fiber, nylon fiber and viscose fiber are compounded in a weight ratio of 3:2:2, and then processed sequentially through cotton cleaning, carding, 3-5 drawing, roving, spinning and winding processes to obtain warp and weft yarns. The obtained warp and weft yarns are interwoven through an air-jet loom to produce an anti-arc fabric.

[0018] In this embodiment, the yarn twist is 800-1200 twists / m, and the yarn linear density is 20-40 tex; the weaving parameters of the air-jet loom are 40-60 warp ends / cm, 30-50 weft ends / cm, and 500-600 rpm.

[0019] The method for preparing modified aramid fibers in this embodiment is as follows: S01: Preparation of the modified liquid: S01a: Add 2-5 parts of titanium dioxide and 2-3 parts of boron nitride agent to 3-5 parts of lanthanum chloride solution and stir evenly to obtain titanium dioxide solution; S01b: Mix 1-3 parts glass fiber, 2-4 parts sodium silicate solution and 2-3 parts bentonite evenly to obtain bentonite liquid; stir titanium dioxide liquid and bentonite liquid at a weight ratio of 3:5 to obtain modified liquid. S02: Heat-treat silicon carbide at 110-120℃ for 10-15 min, then cool it to 55℃ at a rate of 1-3℃ / min and keep it at that temperature; stir the silicon carbide and the modified liquid at a weight ratio of 5:(8-11) to modify it. After stirring, a silicon carbide-based modifier is obtained. S03: Aramid fibers and silicon carbide-based modifiers are ultrasonically treated at a weight ratio of 7:(19-21). After ultrasonic treatment, the fibers are dried to obtain modified aramid fibers.

[0020] In this embodiment, the lanthanum chloride solution has a mass fraction of 2-5%; the sodium silicate solution has a mass fraction of 5-8%.

[0021] In this embodiment, the stirring speed for the stirring modification treatment is 350-400 r / min, and the stirring time is 1 h; the ultrasonic power for the ultrasonic treatment is 550-750 w, and the ultrasonic treatment time is 2 h.

[0022] The preparation method of the boron nitride agent in this embodiment is as follows: Boron nitride was irradiated in a proton irradiation chamber for 1 hour at an irradiation power of 350-400W to obtain irradiated boron nitride. The irradiated boron nitride and the treatment solution were stirred thoroughly at a weight ratio of 5:(8-11), then filtered and dried to obtain boron nitride agent. The treatment solution comprises the following raw materials in parts by weight: 2-5 parts yttrium oxide, 3-5 parts hydroxyl silicone oil, 5-8 parts β-cyclodextrin solution, and 4-7 parts calcium sulfate whiskers.

[0023] The β-cyclodextrin solution in this embodiment is prepared by mixing β-cyclodextrin, silane coupling agent KH560 and ethanol solution in a weight ratio of (2-5):1:(7-9) until homogeneous.

[0024] The ethanol solution in this embodiment has a mass fraction of 75-85%.

[0025] This embodiment describes a method for preparing an arc-resistant fabric, which yields an arc-resistant fabric.

[0026] The application of a method for preparing an arc-proof fabric in an arc-proof headgear, as described in this embodiment.

[0027] Example 1. The method for preparing an anti-arc fabric according to this embodiment includes the following steps: Modified aramid fiber, nylon fiber and viscose fiber are compounded in a weight ratio of 3:2:2, and then processed sequentially through cotton cleaning, carding, three drawing processes, roving, spinning and winding to obtain warp and weft yarns. The obtained warp and weft yarns are interwoven on an air-jet loom to produce an anti-arc fabric.

[0028] In this embodiment, the yarn twist is 800 twists / m and the yarn linear density is 20 tex; the weaving parameters of the air-jet loom are 40 warp threads / cm, 30 weft threads / cm, and 500 rpm.

[0029] The method for preparing modified aramid fibers in this embodiment is as follows: S01: Preparation of the modified liquid: S01a: Add 2 parts titanium dioxide and 2 parts boron nitride agent to 3 parts lanthanum chloride solution and stir evenly to obtain titanium dioxide solution; S01b: Mix 1 part glass fiber, 2 parts sodium silicate solution and 2 parts bentonite evenly to obtain bentonite liquid; stir titanium dioxide liquid and bentonite liquid at a weight ratio of 3:5 to obtain modified liquid. S02: Heat-treat silicon carbide at 110℃ for 10 min, then cool it to 55℃ at a rate of 1℃ / min and hold it at that temperature; stir the silicon carbide and the modification liquid at a weight ratio of 5:8 for modification treatment, and after stirring, obtain a silicon carbide-based modifier. S03: Aramid fibers and silicon carbide-based modifiers are ultrasonically treated at a weight ratio of 7:19. After ultrasonic treatment, the fibers are dried to obtain modified aramid fibers.

[0030] In this embodiment, the lanthanum chloride solution has a mass fraction of 2%; the sodium silicate solution has a mass fraction of 5%.

[0031] In this embodiment, the stirring speed for the stirring modification treatment was 350 r / min, and the stirring time was 1 h; the ultrasonic power for the ultrasonic treatment was 550 W, and the ultrasonic treatment time was 2 h.

[0032] The preparation method of the boron nitride agent in this embodiment is as follows: Boron nitride was irradiated in a proton irradiation chamber for 1 hour at an irradiation power of 350W to obtain irradiated boron nitride. The irradiated boron nitride and the treatment solution were stirred thoroughly at a weight ratio of 5:8, then filtered and dried to obtain boron nitride agent. The treatment solution comprises the following raw materials in parts by weight: 2 parts yttrium oxide, 3 parts hydroxyl silicone oil, 5 parts β-cyclodextrin solution, and 4 parts calcium sulfate whiskers.

[0033] The β-cyclodextrin solution in this embodiment was prepared by mixing β-cyclodextrin, silane coupling agent KH560, and ethanol solution in a weight ratio of 2:1:7.

[0034] The ethanol solution in this embodiment has a mass fraction of 75%.

[0035] This embodiment describes a method for preparing an arc-resistant fabric, which yields an arc-resistant fabric.

[0036] The application of a method for preparing an arc-proof fabric in an arc-proof headgear, as described in this embodiment.

[0037] Example 2. The method for preparing an anti-arc fabric according to this embodiment includes the following steps: Modified aramid fiber, nylon fiber and viscose fiber are compounded in a weight ratio of 3:2:2, and then processed through cleaning, carding, five drawing processes, roving, spinning and winding to produce warp and weft yarns. The warp and weft yarns are then interwoven on an air-jet loom to produce an anti-arc fabric.

[0038] In this embodiment, the yarn twist is 1200 twists / m and the yarn linear density is 40 tex; the weaving parameters of the air-jet loom are 60 warp threads / cm, 50 weft threads / cm, and 600 rpm.

[0039] The method for preparing modified aramid fibers in this embodiment is as follows: S01: Preparation of the modified liquid: S01a: Add 5 parts titanium dioxide and 3 parts boron nitride agent to 5 parts lanthanum chloride solution and stir evenly to obtain titanium dioxide solution; S01b: Mix 3 parts glass fiber, 4 parts sodium silicate solution and 3 parts bentonite evenly to obtain bentonite liquid; stir titanium dioxide liquid and bentonite liquid at a weight ratio of 3:5 to obtain modified liquid. S02: Heat-treat silicon carbide at 120℃ for 15 min, then cool it to 55℃ at a rate of 3℃ / min and hold it at that temperature; stir the silicon carbide and the modification liquid at a weight ratio of 5:11 for modification treatment, and after stirring, obtain a silicon carbide-based modifier. S03: Aramid fibers and silicon carbide-based modifiers are ultrasonically treated at a weight ratio of 7:21. After ultrasonic treatment, the fibers are dried to obtain modified aramid fibers.

[0040] In this embodiment, the lanthanum chloride solution has a mass fraction of 5%; the sodium silicate solution has a mass fraction of 8%.

[0041] In this embodiment, the stirring speed for the stirring modification treatment was 400 r / min, and the stirring time was 1 h; the ultrasonic power for the ultrasonic treatment was 750 W, and the ultrasonic treatment time was 2 h.

[0042] The preparation method of the boron nitride agent in this embodiment is as follows: Boron nitride was irradiated in a proton irradiation chamber for 1 hour at an irradiation power of 400W to obtain irradiated boron nitride. The irradiated boron nitride and the treatment solution were stirred thoroughly at a weight ratio of 5:11, then filtered and dried to obtain boron nitride agent. The treatment solution comprises the following raw materials in parts by weight: 5 parts yttrium oxide, 5 parts hydroxyl silicone oil, 8 parts β-cyclodextrin solution, and 7 parts calcium sulfate whiskers.

[0043] The β-cyclodextrin solution in this embodiment was prepared by mixing β-cyclodextrin, silane coupling agent KH560, and ethanol solution in a weight ratio of 5:1:9.

[0044] The ethanol solution in this embodiment has a mass fraction of 85%.

[0045] This embodiment describes a method for preparing an arc-resistant fabric, which yields an arc-resistant fabric.

[0046] The application of a method for preparing an arc-proof fabric in an arc-proof headgear, as described in this embodiment.

[0047] Example 3. The method for preparing an anti-arc fabric according to this embodiment includes the following steps: Modified aramid fiber, nylon fiber and viscose fiber are compounded in a weight ratio of 3:2:2, and then processed sequentially through cotton cleaning, carding, four drawing processes, roving, spinning and winding to produce warp and weft yarns. The warp and weft yarns are then interwoven on an air-jet loom to produce an anti-arc fabric.

[0048] In this embodiment, the yarn twist is 1000 twists / m and the yarn linear density is 30 tex; the weaving parameters of the air-jet loom are 50 warp threads / cm, 40 weft threads / cm, and 550 rpm.

[0049] The method for preparing modified aramid fibers in this embodiment is as follows: S01: Preparation of the modified liquid: S01a: Add 3.5 parts of titanium dioxide and 2.5 parts of boron nitride to 4 parts of lanthanum chloride solution and stir until homogeneous to obtain titanium dioxide solution; S01b: Mix 2 parts glass fiber, 3 parts sodium silicate solution and 2.5 parts bentonite evenly to obtain bentonite liquid; stir titanium dioxide liquid and bentonite liquid at a weight ratio of 3:5 to obtain modified liquid. S02: Heat-treat silicon carbide at 115℃ for 12 min, then cool it to 55℃ at a rate of 2℃ / min and hold it at that temperature; stir the silicon carbide and the modification liquid at a weight ratio of 5:9 for modification treatment, and after stirring, obtain a silicon carbide-based modifier. S03: Aramid fibers and silicon carbide-based modifiers are ultrasonically treated at a weight ratio of 7:20. After ultrasonic treatment, the fibers are dried to obtain modified aramid fibers.

[0050] In this embodiment, the lanthanum chloride solution has a mass fraction of 3.5%; the sodium silicate solution has a mass fraction of 6.5%.

[0051] In this embodiment, the stirring speed for the stirring modification treatment was 370 r / min, and the stirring time was 1 h; the ultrasonic power for the ultrasonic treatment was 600 W, and the ultrasonic treatment time was 2 h.

[0052] The preparation method of the boron nitride agent in this embodiment is as follows: Boron nitride was irradiated in a proton irradiation chamber for 1 hour at an irradiation power of 375W to obtain irradiated boron nitride. The irradiated boron nitride and the treatment solution were stirred thoroughly at a weight ratio of 5:9, then filtered and dried to obtain boron nitride agent. The treatment solution comprises the following raw materials in parts by weight: 3.5 parts yttrium oxide, 4 parts hydroxyl silicone oil, 6.5 parts β-cyclodextrin solution, and 5.5 parts calcium sulfate whiskers.

[0053] The β-cyclodextrin solution in this embodiment was prepared by mixing β-cyclodextrin, silane coupling agent KH560, and ethanol solution in a weight ratio of 3.5:1:8.

[0054] The ethanol solution in this embodiment has a mass fraction of 80%.

[0055] This embodiment describes a method for preparing an arc-resistant fabric, which yields an arc-resistant fabric.

[0056] The application of a method for preparing an arc-proof fabric in an arc-proof headgear, as described in this embodiment.

[0057] Comparative Example 1. Unlike Example 3, the modified aramid fibers were not treated with a silicon carbide-based modifier.

[0058] Comparative Example 2. Unlike Example 3, no modifying liquid was added in the preparation of the silicon carbide-based modifier.

[0059] Comparative Example 3. Unlike Example 3, no titanium dioxide solution was added to the modified solution.

[0060] Comparative Example 4. Unlike Example 3, no bentonite solution was added to the modified solution.

[0061] Comparative Example 5. Unlike Example 3, boron nitride is used instead of boron nitride as the agent.

[0062] The product performance tests of Examples 1-3 and Comparative Examples 1-5 were conducted, and the test results are as follows:

[0063] As can be seen from Examples 1-3 and Comparative Examples 1-5, the product of the present invention can achieve coordinated improvement in performance of arc resistance and fracture strength, while the product has significant stability under corrosion conditions. The modified aramid fibers were not treated with silicon carbide-based modifiers, and no modifying liquid was added during the preparation of silicon carbide-based modifiers. No titanium dioxide liquid was added to the modifying liquid, and no bentonite liquid was added to the modifying liquid. Boron nitride was used instead of boron nitride as the modifier. The performance of the products tended to deteriorate. Only the modified aramid fibers obtained by the method of this invention showed the most significant performance improvement.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for preparing an anti-arc fabric, characterized in that, Includes the following steps: Modified aramid fiber, nylon fiber and viscose fiber are compounded in a weight ratio of 3:2:2, and then processed sequentially through cotton cleaning, carding, 3-5 drawing, roving, spinning and winding processes to obtain warp and weft yarns. The obtained warp and weft yarns are interwoven through an air-jet loom to produce an anti-arc fabric.

2. The method for preparing an anti-arc fabric according to claim 1, characterized in that, The yarn has a twist of 800-1200 twists / m and a linear density of 20-40 tex; the weaving parameters of the air-jet loom are a warp density of 40-60 ends / cm, a weft density of 30-50 ends / cm, and a weaving speed of 500-600 rpm.

3. The method for preparing an anti-arc fabric according to claim 1, characterized in that, The method for preparing the modified aramid fiber is as follows: S01: Preparation of the modified liquid: S01a: Add 2-5 parts of titanium dioxide and 2-3 parts of boron nitride agent to 3-5 parts of lanthanum chloride solution and stir evenly to obtain titanium dioxide solution; S01b: Mix 1-3 parts glass fiber, 2-4 parts sodium silicate solution and 2-3 parts bentonite evenly to obtain bentonite liquid; stir titanium dioxide liquid and bentonite liquid at a weight ratio of 3:5 to obtain modified liquid. S02: Heat-treat silicon carbide at 110-120℃ for 10-15 min, then cool it to 55℃ at a rate of 1-3℃ / min and keep it at that temperature; stir the silicon carbide and the modified liquid at a weight ratio of 5:(8-11) to modify it. After stirring, a silicon carbide-based modifier is obtained. S03: Aramid fibers and silicon carbide-based modifiers are ultrasonically treated at a weight ratio of 7:(19-21). After ultrasonic treatment, the fibers are dried to obtain modified aramid fibers.

4. The method for preparing an anti-arc fabric according to claim 3, characterized in that, The lanthanum chloride solution has a mass fraction of 2-5%; the sodium silicate solution has a mass fraction of 5-8%.

5. The method for preparing an anti-arc fabric according to claim 3, characterized in that, The stirring modification treatment was carried out at a stirring speed of 350-400 r / min for 1 h; the ultrasonic treatment was carried out at an ultrasonic power of 550-750 w for 2 h.

6. The method for preparing an anti-arc fabric according to claim 3, characterized in that, The preparation method of the boron nitride agent is as follows: Boron nitride was irradiated in a proton irradiation chamber for 1 hour at an irradiation power of 350-400W for 1 hour to obtain irradiated boron nitride. The irradiated boron nitride and the treatment solution were stirred thoroughly at a weight ratio of 5:(8-11), then filtered and dried to obtain boron nitride agent. The treatment solution comprises the following raw materials in parts by weight: 2-5 parts yttrium oxide, 3-5 parts hydroxyl silicone oil, 5-8 parts β-cyclodextrin solution, and 4-7 parts calcium sulfate whiskers.

7. The method for preparing an anti-arc fabric according to claim 3, characterized in that, The β-cyclodextrin solution was prepared by mixing β-cyclodextrin, silane coupling agent KH560 and ethanol solution in a weight ratio of (2-5):1:(7-9) until homogeneous.

8. The method for preparing an anti-arc fabric according to claim 7, characterized in that, The ethanol solution has a mass fraction of 75-85%.

9. An arc-resistant fabric prepared by the method for preparing an arc-resistant fabric as described in any one of claims 1-8.

10. The application of the method for preparing an arc-proof fabric as described in any one of claims 1-8 in an arc-proof headgear.

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