Production method of light-weight, insulating and high-strength fishing rod material

Abstract

The application belongs to the technical field of fishing rods, and discloses a production method of light-weight insulating high-strength fishing rod material. A large number of amino active groups are introduced on the surface of carbon fiber fabric treated by a coupling agent, and after glue dipping treatment, chemical combination with epoxy resin impregnated material occurs, the interface gap between the two is reduced, the interface combination of the fiber and the resin is increased, and the insulation of the fishing rod is reduced. Zinc oxide is low in price and has good insulation. The surface of zinc oxide particles and carbon fibers is treated respectively, and the zinc oxide and the carbon fibers are chemically bonded through optimization of the ratio and chemical reaction, so that the insulation of the light-weight insulating high-strength fishing rod material is improved. The light-weight insulating high-strength fishing rod material is prepared through cloth cutting, curing, core removal and other production processes, and the occurrence of leisure fishing lightning stroke and electric shock accidents can be greatly avoided. The light-weight insulating high-strength fishing rod material has good tensile strength, toughness and elasticity, and the elastic recovery rate reaches 98%. The fishing rod adopts a high polymer composite material, and has good overall insulation performance and high safety performance.

Description

Technical Field

[0001] This invention belongs to the field of composite material technology, specifically relating to a method for producing a lightweight, insulating, and high-strength fishing rod material. Background Technology

[0002] With social development, fishing has become a fashionable sport, often referred to as "water golf," and boasts huge market potential. In recent years, as people's living standards have improved, more and more people enjoy fishing in their spare time. However, due to negligence, the incidence of electric shocks caused by fishing has been increasing year by year. Compared to traditional wooden fishing rods and fiberglass fishing rods on the market, carbon fiber fishing rods are gradually replacing older materials due to their higher yield strength and toughness, ease of processing, light weight, strong corrosion resistance, and high sensitivity. However, fishing activities are often accompanied by accidents such as lightning strikes and electric shocks, seriously affecting the safety of anglers. Therefore, how to solve the problems of fishing rod insulation, safety, lightweight, and cost-effectiveness is an urgent issue. Currently used fishing rods and lines are not insulators; some lightweight carbon fiber fishing rods are even good conductors of electricity. Furthermore, fishing near water facilitates conductivity, and if the fishing location is too close to high-voltage lines, the fishing line can easily accidentally touch the high-voltage lines if the angler is careless while swinging the rod. Even without physical contact, electric shock can occur if the safe distance (1.5 meters for 110 kV and 0.7 meters for 10 kV) is insufficient. Fishing rods and lines may become wet during use, and water is a conductor, making both the rod and line conductive. Holding a fishing rod high in an open field or taking shelter under a large tree during rain is extremely dangerous and can attract lightning strikes, causing injury or death. CN201921160157.5 discloses an insulated electronic fishing rod with an insulating protective sleeve, which anglers hold to prevent electric shock; however, the sleeve can still be penetrated, making it ineffective and not truly preventing electric shock. Previously, numerous media outlets have reported deaths from electric shock while fishing with fishing rods, and many anglers have almost no knowledge of the conductivity of fishing rods; only experienced anglers are aware that carbon fiber fishing rods conduct electricity. Commonly used fishing rods and lines on the market are made of conductive materials and do not provide insulation. Carbon fiber fishing rods, in particular, are made of carbon fiber, a good conductor of electricity. They are not only non-insulating, but also dangerous when the fishing line gets wet, as current can discharge along the line and rod to the human body, causing injury or death. There is an urgent need in those skilled in the art to develop a method for producing a lightweight, insulating, and high-strength fishing rod material to meet current usage needs and performance requirements. Summary of the Invention

[0003] The purpose of this invention is to address the existing problems by providing a method for producing a lightweight, insulating, and high-strength fishing rod material.

[0004] A method for producing a lightweight, insulating, high-strength fishing rod material includes the following steps: Step 1, surface grafting: Acidifying carbon fiber fabric with a 40%–45% nitric acid solution at 45–50°C for 0.8–1.2 h, washing the carbon fiber fabric with water until neutral, drying it at 50–55°C to constant weight, immersing the acidified carbon fiber fabric in a 2%–5% ethanol solution of 3-aminopropyltriethoxysilane at 30–35°C for 30–35 min, washing the reacted carbon fiber fabric with ethanol, and then drying it in an oven at 60–70°C to constant weight to obtain surface-grafted amino carbon fiber fabric; Step 2, impregnation treatment of the surface-grafted amino carbon fiber fabric: Nano zinc oxide and polythiol toluene solution are mixed at a mass ratio of 13–17:83–89. The mixture is uniformly mixed, and then a 2%–5% mass concentration toluene solution of γ-(2,3-epoxypropoxy)propyltrimethoxysilane is added dropwise at a mass ratio of 1:1–2. The mixture is stirred and reacted at 70–80°C for 2–3 hours to obtain a glue solution. The carbon fiber fabric with amino grafts on the surface is impregnated with the glue solution and dried to obtain impregnated carbon fiber fabric. In the third step, epoxy resin impregnating material is directly coated onto the carbon fiber fabric at a coating temperature of 60–100°C, a tension of 0.1–0.5 cN / tex applied to the impregnated carbon fiber fabric, a fiber fabric feeding speed of 2–3 m / min, and an epoxy resin impregnating material coating speed of 1.8–2.7 m / min to obtain epoxy resin prepreg fabric. The epoxy resin prepreg fabric is then rolled and cured to form a fishing rod, thus obtaining a lightweight, insulating, and high-strength fishing rod material.

[0005] Furthermore, in the third step, the carbon fiber fabric content in the epoxy resin prepreg is 55% to 70% of the weight of the prepreg.

[0006] Furthermore, the second step of the polythiol toluene solution contains 15% to 20% polythiol by mass.

[0007] Furthermore, the second step of the impregnation process involves an impregnation temperature of 70–75°C, a liquor ratio of 1:3–4, an impregnation amount of 24–28%, and an impregnation rate of 0.5–1 m / min.

[0008] Furthermore, the epoxy resin impregnating material has a curing temperature of 120°C, a gel time of 18–35 min at 177°C, and a viscosity of 600–1500 mPa·s at 75°C.

[0009] Furthermore, the areal density of the carbon fiber fabric in the first step is 92–150 g / m². 2 Carbon fiber plain weave fabric and carbon fiber satin weave fabric.

[0010] This invention discloses a method for producing lightweight, insulating, high-strength fishing rod materials. A large number of active groups, such as amino groups, are introduced onto the surface of carbon fiber fabric treated with a coupling agent. After impregnation with resin, the amino-grafted carbon fiber fabric is chemically bonded to an epoxy resin impregnating material, reducing the interfacial gap between the two. This increased interfacial bonding between the fiber and resin reduces the insulation of the fishing rod. Furthermore, zinc oxide is inexpensive and possesses good insulation properties. By separately surface-treating zinc oxide particles and carbon fibers, and through optimized proportions and chemical reactions, zinc oxide is chemically bonded to carbon fibers, thereby improving the insulation performance of the lightweight, insulating, high-strength carbon fishing rod material. This invention utilizes a surface-grafted amino group and a resin composed of nano-zinc oxide, polythiol toluene solution, and γ-(2,3-epoxypropoxy)propyltrimethoxysilane to chemically bond zinc oxide with carbon fiber, improving the insulation performance of the carbon fiber. Through processes such as cutting, curing, and core removal, a lightweight, insulating, and high-strength fishing rod material is prepared. This material greatly reduces the risk of lightning strikes and electric shocks during recreational fishing. It possesses good tensile strength, toughness, and elasticity, with an elastic recovery rate of 98%. The fishing rod is made of high-molecular composite materials, exhibiting excellent overall insulation and safety performance. It also offers high cost-effectiveness, is lightweight, easy to carry, and convenient to operate. Detailed Implementation

[0011] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention. Example 1

[0012] Yifeng New Materials' polythiol 309; Jiangchuan Chemical's 9203 epoxy resin impregnating material has a curing temperature of 120℃, a gel time of 18 min at 177℃, and a viscosity of 600 mPa·s at 75℃; carbon fiber satin fabric CS-3-1158 has a warp / weft density of 29.9 / 25mm, a thickness of 0.17mm, and a surface density of 150g / m². 2 Fabric cutting machine Hangzhou Aike BK-1713, tube winding machine GWJG-60-2000, tape wrapping machine GWCD-φ50-1000, core removal machine GWTX-10-500, curing oven GWFH-150-1790;

[0013] The production method of lightweight insulating high-strength fishing rod material includes the following steps: Step 1, surface grafting: After acidifying the carbon fiber fabric with a 40% nitric acid solution at 45°C for 0.8 hours, the carbon fiber fabric is washed with water until neutral, dried at 50°C to constant weight, and then immersed in a 5% DynasylanAMEO3-aminopropyltriethoxysilane ethanol solution at 30°C for 30 minutes. After washing the reacted carbon fiber fabric with ethanol, it is dried in an oven at 60°C to constant weight to obtain carbon fiber fabric with amino grafted on the surface; Step 2, the carbon fiber fabric with amino grafted on the surface... The fiber fabric is treated with a sizing agent. A polythiol toluene solution containing 15% polythiol by mass is used. Nano-zinc oxide is uniformly mixed with the polythiol toluene solution at a mass ratio of 13:83. Then, a 2% (by mass) toluene solution of A189γ-(2,3-epoxypropoxy)propyltrimethoxysilane is added dropwise at a mass ratio of 1:1 (total of zinc oxide). The mixture is stirred at 70°C for 2 hours to obtain a sizing agent. The amino-grafted carbon fiber fabric is then impregnated with this sizing agent and dried. The impregnation temperature is 70°C, the liquor ratio is 1:3, the sizing amount is 24%, and the impregnation rate is 0.5 m / min, resulting in the sizing agent-impregnated carbon fiber fabric. The third step... 1. Epoxy resin impregnating material is directly coated onto carbon fiber cloth, wherein the coating temperature is 60℃, the tension applied to the impregnated carbon fiber fabric is 0.1cN / tex, the fiber cloth feeding speed is 2m / min, the epoxy resin impregnating material coating speed is 1.8m / min, and the carbon fiber fabric content in the epoxy resin prepreg is 55% of the weight percentage of the prepreg, thus obtaining epoxy resin prepreg. The epoxy resin prepreg is rolled and cured to form a fishing rod. (1) Cutting the fabric: Cut the epoxy resin prepreg using a BK-1713 fabric cutting machine; (2) Ironing the core: Press one end of the epoxy resin prepreg onto GWJG-60-2000. (3) Rolling and wrapping: Use a rolling machine to roll carbon fiber cloth onto the mold, and place the mold with the cloth on the wrapping machine to wrap BOPP tape; (4) Curing: After wrapping the mold with tape, place it in a curing oven for curing. The curing oven is heated by electric heating at 125℃ for 2 hours; (5) Core removal: After curing, use a core removal machine to remove the mold to form a bare rod; (6) Tape removal: Remove the BOPP tape from the outer layer of the bare rod after core removal; (7) Cutting: Cut off the excess part with a cutting machine; (8) Assemble the guide, reel seat, handle and other parts onto the bare rod to obtain a lightweight, insulated, high-strength fishing rod material.

[0014] Product: Carbon fiber fishing rods are free from defects such as burrs, cracks, scratches, and deformation. The surface is smooth, with clear patterns and uniform color, free from shrinkage marks. The line is tightly and firmly wound, with no exposed line ends. Visually, the entire rod shows no obvious lateral bending or twisting when viewed in the direction of use. The elastic recovery rate is 98%. After curing, the tensile strength at 0° is 2058 MPa, the flexural strength at 0° is 1536 MPa, the interlaminar shear strength is 87.8 MPa, and the surface resistivity is 6.9 × 10⁻⁶.9 Ω, dielectric strength 9.5KV / mm. Example 2

[0015] Polythiol QX-40; Jiangchuan Chemical 8001 epoxy resin impregnating material has a curing temperature of 120℃, a gel time of 35 min at 177℃, and a viscosity of 1500 mPa·s at 75℃; carbon fiber plain weave fabric CP-3-1092 has a plain weave warp / weft density of 17.4 / 25m, a thickness of 0.12mm, and a areal density of 92g / m². 2 Fabric cutting machine Hangzhou Aike BK-1713, tube winding machine GWJG-60-2000, tape wrapping machine GWCD-φ50-1000, core removal machine GWTX-10-500, curing oven GWFH-150-1790;

[0016] A method for producing lightweight, insulating, high-strength fishing rod material includes the following steps: Step 1, surface grafting: Carbon fiber fabric is acidified with a 45% (w / w) nitric acid solution at 50°C for 1.2 hours, then washed with water until neutral, dried at 55°C to constant weight, and then immersed in a 2% (w / w) ethanol solution of 3-aminopropyltriethoxysilane at 35°C for 35 minutes. After washing the reacted carbon fiber fabric with ethanol, it is dried in an oven at 70°C to constant weight to obtain amino-grafted carbon fiber fabric; Step 2, impregnation treatment of the amino-grafted carbon fiber fabric. The polythiol toluene solution contains 20% polythiol by mass. Nano-zinc oxide is uniformly mixed with the polythiol toluene solution at a mass ratio of 17:89. Then, a 5% mass concentration of γ-(2,3-epoxypropoxy)propyltrimethoxysilane toluene solution (1:2 mass ratio of nano-zinc oxide) is added dropwise. The mixture is stirred at 70–80°C for 3 hours to obtain a resin solution. Amino-grafted carbon fiber fabric is impregnated with this resin solution and dried. The impregnation temperature is 75°C, the liquor ratio is 1:4, the resin application rate is 28%, and the impregnation rate is 1 m / min. The third step involves impregnation with epoxy resin. The material is directly coated onto the carbon fiber cloth, wherein the coating temperature is 100℃, the tension applied to the impregnated carbon fiber fabric is 0.5cN / tex, the fiber cloth feeding speed is 3m / min, the epoxy resin impregnation material coating speed is 2.7m / min, the carbon fiber fabric content in the epoxy resin prepreg is 70% of the weight percentage of the prepreg, and the epoxy resin prepreg is obtained. The epoxy resin prepreg is rolled and cured to form a fishing rod. (1) Cutting the fabric: Cut the epoxy resin prepreg with a BK-1713 fabric cutting machine; (2) Ironing the core: Press one end of the epoxy resin prepreg onto a GWJG-60-2000 tube rolling machine. Mold surface; (3) Rolling and wrapping: Use a rolling machine to roll carbon fiber cloth onto the mold, and place the mold with the cloth on the wrapping machine to wrap BOPP tape; (4) Curing: After wrapping the mold with tape, put it into a curing oven for curing. The curing oven is heated by electric heating at 130℃ for 2 hours; (5) Core removal: Use a core removal machine to remove the mold after curing to form a bare rod; (6) Tape removal: Remove the BOPP tape from the outer layer of the bare rod after core removal; (7) Cutting: Cut off the excess part with a cutting machine; (8) Assemble the guide, reel seat, handle and other parts onto the bare rod to obtain a lightweight, insulated, high-strength fishing rod material.

[0017] Product: Carbon fiber fishing rods are free from defects such as burrs, cracks, scratches, and deformation. The surface is smooth, with clear patterns and uniform color, free from shrinkage marks. The line is tightly and firmly wound, with no exposed line ends. Visually, the entire rod shows no obvious lateral bending or twisting when viewed in the direction of use. The elastic recovery rate is 98%. After curing, the tensile strength at 0° is 1891 MPa, the flexural strength at 0° is 1492 MPa, the interlaminar shear strength is 77.6 MPa, and the surface resistivity is 8.3 × 10⁻⁶. 9Ω, dielectric strength 10KV / mm.

[0018] Note: Tensile strength is tested according to GB / T3354-1999. Flexural strength is tested according to GB / T3356-1999. Interlaminar shear strength is tested according to JC / T773-2010. For fishing rods (QB / T1476-2004), dielectric strength is tested according to Chapter 9 of GB / T5591.2-2002 Flexible composite materials for electrical insulation – Part 2: Test methods, and GB / T1410-2006 Solid insulating materials – Test methods for volume resistivity and surface resistivity.

[0019] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for producing a lightweight, insulating, high-strength fishing rod material, characterized in that, Includes the following steps: Step 1: Surface grafting: The acid-treated carbon fiber fabric is immersed in a 2%–5% (w / w) ethanol solution of 3-aminopropyltriethoxysilane at 30–35°C for 30–35 min. After washing the reacted carbon fiber fabric with ethanol, it is dried in an oven at 60–70°C to constant weight to obtain amino-grafted carbon fiber fabric. Step 2: Impregnation treatment of the amino-grafted carbon fiber fabric: Nano zinc oxide and polythiol toluene solution are uniformly mixed at a mass ratio of 13–17:83–89. Then, a 2%–5% (w / w) γ-(2,3-epoxypropoxy)propyltrimethoxysilane toluene solution is added dropwise. The nano zinc oxide and the 2%–5% (w / w) γ-(2,3-epoxypropoxy) The mass ratio of propyltrimethoxysilane to toluene solution is 1:(1-2). The mixture is stirred and reacted at 70-80℃ for 2-3 hours to obtain a glue solution. The carbon fiber fabric with amino grafts on the surface is impregnated with the glue solution and dried to obtain impregnated carbon fiber fabric. In the third step, epoxy resin impregnating material is directly coated onto the impregnated carbon fiber fabric. The coating temperature is 60-100℃, the tension applied to the impregnated carbon fiber fabric is 0.1-0.5 cN / tex, the fiber feeding speed is 2-3 m / min, and the epoxy resin impregnating material coating speed is 1.8-2.7 m / min to obtain epoxy resin prepreg fabric, which is a lightweight, insulating, high-strength fishing rod material.

2. The method for producing a lightweight, insulating, high-strength fishing rod material according to claim 1, characterized in that, In the third step, the carbon fiber fabric content in the epoxy resin prepreg is 55% to 70% of the weight of the prepreg.

3. The method for producing a lightweight, insulating, high-strength fishing rod material according to claim 1, characterized in that, In the second step, the polythiol toluene solution contains 15% to 20% polythiol by mass.

4. The method for producing a lightweight, insulating, high-strength fishing rod material according to claim 1, characterized in that, The second step of the impregnation process involves an impregnation temperature of 70–75°C, a liquor ratio of 1:3–4, an impregnation amount of 24–28%, and an impregnation rate of 0.5–1 m / min.

5. The method for producing a lightweight, insulating, high-strength fishing rod material according to claim 1, characterized in that, The epoxy resin impregnating material has a curing temperature of 120℃, a gel time of 18-35 min at 177℃, and a viscosity of 600-1500 mPa•s at 75℃.

6. The method for producing a lightweight, insulating, high-strength fishing rod material according to claim 1, characterized in that, In the first step, the carbon fiber fabric has an areal density of 92–150 g / m². 2 Carbon fiber plain weave fabric or carbon fiber satin weave fabric.