Preparation method and application of corrosion-resistant chain plate ring composite material suitable for non-metal chain

Abstract

The invention relates to the technical field of new materials, in particular to a preparation method and application of a corrosion-resistant chain plate ring composite material suitable for a nonmetal chain, and the corrosion-resistant chain plate ring composite material comprises the following raw materials in parts by weight: 90-100 parts of epoxy resin, 5-10 parts of a diluent, 0.5-1.5 parts of a dispersing agent, 20-25 parts of a curing agent and 20-30 parts of filler. According to the invention, glass flakes in the base material are subjected to activation, sensitization and catalysis treatment, and the fiber material is formed by compounding polymers such as polyvinylidene fluoride, nylon 6 and polyphenyl sulfone with inorganic reinforcing phases such as silicon carbide whiskers, nano aluminum oxide and nano silicon dioxide, so that high dispersion and stable existence of a filler in epoxy resin are ensured; therefore, the permeation path of a corrosive medium is blocked, the corrosion resistance of the composite material is remarkably improved, and the service life of the composite material is remarkably prolonged.

Description

Technical Field

[0001] This invention relates to the field of materials technology, specifically to a method for preparing corrosion-resistant chain plate ring composite materials suitable for non-metallic chains and their applications. Background Technology

[0002] Non-metallic chain plate ring composite materials for chains are a new type of engineering material with a high-molecular resin matrix, which is formed by adding functional components and curing. These materials are mainly used in transmission chain components in high-frequency corrosive environments, aiming to replace traditional metal chains, avoid electrochemical corrosion, reduce weight and extend service life. Their technological development focuses on improving the chemical stability, mechanical strength and durability of materials, and is an important research direction in the field of high-performance chain manufacturing.

[0003] Existing composite materials for non-metallic chains suffer from insufficient microstructural uniformity, leading to the easy penetration and diffusion of corrosive media along internal defects and weak interfaces. This, in turn, causes premature material failure in corrosive environments, reducing service life. Therefore, this invention provides a method for preparing corrosion-resistant composite materials for non-metallic chains and their applications. Summary of the Invention

[0004] The purpose of this invention is to provide a method for preparing corrosion-resistant chain plate ring composite materials suitable for non-metallic chains and their applications. The composite materials prepared by this invention not only have good chemical properties but also good mechanical properties.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant chain plate ring composite material suitable for non-metallic chains, comprising the following raw materials in parts by weight: 90-100 parts epoxy resin, 5-10 parts diluent, 0.5-1.5 parts dispersant, 20-25 parts curing agent, and 20-30 parts filler; The filler is prepared by the following method: Step 1: Preparation of the base material. The raw material for the base material is glass flakes. Step 2: Preparation of fiber material. The raw materials for the fiber material include polyvinylidene fluoride, nylon 6, polyphenylsulfone, silicon carbide whiskers, nano-alumina, nano-silica, sheet boron nitride, treatment solution, N,N-dimethylformamide, dimethyl sulfoxide, acetone, maleic anhydride-grafted polypropylene, and polyethylene glycol. The mass of the fiber material is 60-80% of the mass of the base material. Step 3: Mix the base material and fiber material at 100-200 rpm for 20-30 minutes to obtain the filler.

[0006] Preferably, the method for preparing the base material is as follows: glass flakes are sequentially cleaned with acetone and ethanol for 30 min, then dried at 110–120°C for 2–4 h. The resulting glass flakes are then immersed in a 0.1 M stannous chloride solution for 10–15 min, washed, and then immersed in a 0.001 M palladium chloride solution for 10–15 min. A 0.01 M nickel nitrate ethanol solution is then uniformly sprayed onto the continuously tumbling glass flake surface. After spraying, boron powder is added and mixed, and the mixture is dried at 60–70°C for 1–2 h. The resulting product is then spread evenly in a tube furnace and dried at 2… Argon gas is introduced at 00 sccm, and the temperature is raised to 600-800℃ at a rate of 8-10℃ / min. After the temperature is raised, it is held for 40-60 min. During the holding period, a mixture of nitrogen and hydrogen is introduced, with nitrogen introduced at 100 sccm and hydrogen introduced at 50 sccm. Then, it is cooled to room temperature and heated to 650-750℃. A mixture of argon, hydrogen, and methane is introduced, with argon introduced at 200 sccm, hydrogen introduced at 100 sccm, and methane introduced at 50 sccm. The temperature is held for 10-20 min, and then allowed to cool to room temperature to obtain the base material.

[0007] Preferably, the amount of boron powder added is 12-14% of the mass of the glass flake raw material.

[0008] Preferably, the method for preparing the fiber material is as follows: polyvinylidene fluoride, nylon 6, and polyphenylsulfone are dried at 80°C, 100°C, and 120°C for 3-4 hours, respectively, and then mixed to obtain a first premix, which is set aside. Silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and the treatment solution are mixed to obtain a second premix, which is set aside. N,N-dimethylformamide, dimethyl sulfoxide, and acetone are added to a reaction vessel, mixed, and then heated to 75-80°C. Then, the first premix, maleic anhydride-grafted polypropylene, and polyethylene glycol are added sequentially, and the temperature is set to 8. The mixture is stirred at 0-100 rpm for 1 hour, then the second premix is ​​added and stirred for another hour. The resulting product is ultrasonically dispersed at 200-300 W for 30-40 minutes to obtain a mixture. The mixture is injected into an electrospinning device and electrospinned to obtain a fiber membrane. The fiber membrane is treated at 120℃ for 4 hours and then pulverized to obtain a particle size of 100-140 μm to obtain a fiber material. The electrospinning device is set with a voltage of 20-25 kV, a receiving distance of 13-16 cm, and an injection rate of 0.6-1 mL / h.

[0009] Preferably, the mass ratio of polyvinylidene fluoride, nylon 6, and polyphenylsulfone is 5-6:3-4:1; the mass ratio of silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and treatment liquid is 1:0.4-0.6:0.4-0.6:0.2-0.4:1; the mass of the second premix is ​​30-40% of the mass of the first premix; the mass ratio of N,N-dimethylformamide, dimethyl sulfoxide, and acetone is 1:0.2-0.3:0.1-0.15; the mass of the first premix is ​​25-30% of the mass of N,N-dimethylformamide; the mass of maleic anhydride-grafted polypropylene is 1-2% of the mass of N,N-dimethylformamide; and the mass of polyethylene glycol is 1-2% of the mass of N,N-dimethylformamide.

[0010] Preferably, the treatment solution is prepared by mixing KH550, KH560, ethanol, and deionized water, with the mass ratio of KH550, KH560, ethanol, and deionized water being 1:1:10:3.

[0011] Preferably, the epoxy resin is bisphenol A type epoxy resin E51, and the diluent is benzyl glycidyl ether.

[0012] Preferably, the dispersant is BYK-W 980 and the curing agent is isophorone diamine.

[0013] Preferably, a method for preparing a corrosion-resistant chain ring composite material suitable for non-metallic chains includes the following steps: S1: The filler is sent into the drying oven and pre-dried at 100-110℃ for 2-4 hours; S2: Epoxy resin, diluent, dispersant, and curing agent are added to a mixer. The mixer is set to 40-60 rpm and stirred for 30-40 minutes. Ten minutes after stirring begins, pre-dried filler is added in three batches. The resulting product is sent to a vacuum degassing machine and degassed at -0.095 MPa for 15-20 minutes. The resulting product is poured into a mold and left to stand at room temperature for 12-24 hours. Then it is sent to an oven and kept at 40-45℃ for 2 hours, 60-80℃ for 2 hours, and 100-120℃ for 2 hours to obtain a corrosion-resistant chain ring composite material suitable for non-metallic chains.

[0014] Preferably, the corrosion-resistant chain plate ring composite material prepared by the method for preparing corrosion-resistant chain plate ring composite material suitable for non-metallic chains is used in the assembly and preparation of non-metallic chains. The non-metallic chains are composed of chain links with similar structures connected in series. Each chain link includes a pair of chain plates with the same structure, a central pin, a wear-resistant ring and a stainless steel cotter pin. Each chain plate includes a chain plate ring made of corrosion-resistant chain plate ring composite material and two bushings.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the glass flakes in the base material undergo activation, sensitization, and catalytic treatment to form a uniform catalytic layer on the surface, improving the roughness and chemical inertness of the flakes. The fiber material is formed by combining polymers such as polyvinylidene fluoride, nylon 6, and polyphenylsulfone with inorganic reinforcing phases such as silicon carbide whiskers, nano-alumina, and nano-silica to form a micro-nano fiber membrane. After modification with a treatment solution, the interfacial compatibility with the resin matrix is ​​enhanced. After the base material and fiber material are mixed, the fiber membrane effectively encapsulates the flakes, forming a three-dimensional interpenetrating network structure. This not only provides physical anchoring points but also strengthens the interfacial bonding force through chemical bonding, effectively preventing filler agglomeration and interfacial debonding. This ensures the high dispersion and stable existence of the filler in the epoxy resin, thereby blocking the penetration path of corrosive media and significantly improving the corrosion resistance and service life of the composite material.

[0016] 2. In this invention, the combination of bisphenol A epoxy resin and diluent reduces the viscosity of the system, facilitating the uniform dispersion of fillers. The curing agent ensures sufficient curing reaction, forming a dense cross-linked network. The dispersant further prevents filler sedimentation and improves storage stability. As a result, the composite material has high hardness and high toughness after curing, and its tensile strength can reach the level of metal materials. At the same time, the weight is reduced, meeting the high load requirements of the chain during high-speed operation, and realizing the effective substitution of non-metallic materials for metallic materials.

[0017] 3. In this invention, the addition of antioxidants effectively inhibits the oxidation chain reaction, and the silane treatment solution enhances the interface stability. Combined with vacuum degassing and multi-stage temperature curing, internal bubbles and stress concentration are eliminated, and microcracks are avoided, making the material structure more compact. This allows the material to maintain stable performance in harsh environments such as humid heat and acid and alkali corrosion for a long time when applied to chain plate rings, extending the maintenance cycle and reducing the total life cycle cost. Attached Figure Description

[0018] Figure 1 The flowchart illustrates a method for preparing a corrosion-resistant chain ring composite material suitable for non-metallic chains, as proposed in this invention. Figure 2 This is a 3D exploded view of a non-metallic chain, where A is a chain plate ring. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that the raw materials used in the following embodiments are all commercially available. Example 1

[0021] A corrosion-resistant chain plate ring composite material suitable for non-metallic chains comprises the following raw materials in parts by weight: 90 parts epoxy resin, 5 parts diluent, 0.5 parts dispersant, 20 parts curing agent and 20 parts filler; The epoxy resin used is bisphenol A type epoxy resin E51, and the diluent used is benzyl glycidyl ether.

[0022] The dispersant used is BYK-W 980, and the curing agent is isophorone diamine.

[0023] The packing material is prepared by the following method: Step 1: Preparation of the base material. The raw material for the base material is glass flakes. The method for preparing the base material is as follows: glass flakes are sequentially cleaned with acetone and ethanol for 30 minutes, then dried at 110°C for 2 hours. The resulting glass flakes are then immersed in a 0.1M stannous chloride solution for 10 minutes, washed, and then immersed in a 0.001M palladium chloride solution for 10 minutes. A 0.01M nickel nitrate ethanol solution is then uniformly sprayed onto the continuously tumbling glass flake surface. After spraying, boron powder is added and mixed, and the mixture is dried at 60°C for 1 hour. The resulting product is then spread evenly in a tube furnace, and argon gas is introduced at 200 sccm. The temperature was increased to 600℃ at a rate of 8℃ / min, and held at that temperature for 40 minutes. During the holding period, a mixture of nitrogen and hydrogen was introduced, with nitrogen introduced at a rate of 100 sccm and hydrogen at a rate of 50 sccm. The temperature was then cooled to room temperature and heated to 650℃. A mixture of argon, hydrogen, and methane was introduced, with argon introduced at a rate of 200 sccm, hydrogen introduced at a rate of 100 sccm, and methane at a rate of 50 sccm. The temperature was held for 10 minutes, and then allowed to cool to room temperature to obtain the base material. The amount of boron powder added was 12% of the mass of the glass flake raw material. Step 2: Preparation of fiber material. The raw materials for the fiber material include polyvinylidene fluoride, nylon 6, polyphenylsulfone, silicon carbide whiskers, nano-alumina, nano-silica, sheet boron nitride, treatment solution, N,N-dimethylformamide, dimethyl sulfoxide, acetone, maleic anhydride-grafted polypropylene, and polyethylene glycol. The mass of the fiber material is 60% of the mass of the base material. The method for preparing the fiber material is as follows: Polyvinylidene fluoride, nylon 6, and polyphenylsulfone are dried at 80℃, 100℃, and 120℃ for 3 hours, respectively, and then mixed to obtain a first premix, which is set aside. Silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and the treatment solution are mixed to obtain a second premix, which is set aside. N,N-dimethylformamide, dimethyl sulfoxide, and acetone are added to a reaction vessel, mixed, and heated to 75℃. Then, the first premix, maleic anhydride-grafted polypropylene, and polyethylene glycol are added sequentially, and the mixture is stirred at 80 rpm for 1 hour. The second premix is ​​then added, and the mixture is stirred for another hour. The resulting product is ultrasonically dispersed at 200W for 30 minutes to obtain a mixture. The mixture is injected into an electrospinning device, and a fiber membrane is obtained after electrospinning. The fiber membrane is treated at 120℃ for 4 hours, and then pulverized to a particle size of 100 μm to obtain the fiber material. The electrospinning equipment is set to a voltage of 20kV, a receiving distance of 13cm, and an injection rate of 0.6mL / h. The mass ratio of polyvinylidene fluoride, nylon 6, and polyphenylene sulfone is 5:3:1; the mass ratio of silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and the treatment solution is 1:0.4:0.4:0.2:1; the second premix is ​​30% of the mass of the first premix; N,N-dimethylformamide, dimethyl sulfoxide, ... The mass ratio of acetone is 1:0.2:0.1. The mass of the first premix is ​​25% of the mass of N,N-dimethylformamide, the mass of maleic anhydride-grafted polypropylene is 1% of the mass of N,N-dimethylformamide, the mass of polyethylene glycol is 1% of the mass of N,N-dimethylformamide, and the treatment solution is prepared by mixing KH550, KH560, ethanol, and deionized water in a mass ratio of 1:1:10:3. Step 3: Mix the base material and fiber material at 100 rpm for 20 min to obtain the filler.

[0024] A method for preparing a corrosion-resistant chain ring composite material suitable for non-metallic chains includes the following steps: S1: The filler is sent into the drying oven and pre-dried at 100℃ for 2 hours; S2: Epoxy resin, diluent, dispersant, and curing agent are added to a mixer. The mixer is set to 40 rpm and stirred for 30 minutes. After stirring for 10 minutes, pre-dried filler is added in 3 batches. The resulting product is sent to a vacuum degassing machine and degassed for 15 minutes at -0.095 MPa. The resulting product is poured into a mold and left to stand at room temperature for 12 hours. Then it is sent to an oven and kept at 40℃ for 2 hours, 60℃ for 2 hours, and 100℃ for 2 hours to obtain a corrosion-resistant chain plate ring composite material suitable for non-metallic chains. Example 2

[0025] A corrosion-resistant chain plate ring composite material suitable for non-metallic chains comprises the following raw materials in parts by weight: 95 parts epoxy resin, 8 parts diluent, 1 part dispersant, 22 parts curing agent and 25 parts filler; The epoxy resin used is bisphenol A type epoxy resin E51, and the diluent used is benzyl glycidyl ether.

[0026] The dispersant used is BYK-W 980, and the curing agent is isophorone diamine.

[0027] The packing material is prepared by the following method: Step 1: Preparation of the base material. The raw material for the base material is glass flakes. The method for preparing the base material is as follows: glass flakes are sequentially cleaned with acetone and ethanol for 30 minutes, then dried at 115°C for 3 hours. The resulting glass flakes are then immersed in a 0.1M stannous chloride solution for 12 minutes, washed, and then immersed in a 0.001M palladium chloride solution for 12 minutes. A 0.01M nickel nitrate ethanol solution is then uniformly sprayed onto the continuously tumbling glass flake surface. After spraying, boron powder is added and mixed, and the mixture is dried at 65°C for 1.5 hours. The resulting product is then spread evenly in a tube furnace, and argon gas is introduced at 200 sccm. The temperature was raised to 700℃ at a constant heating rate of 9℃ / min, and held at that temperature for 50 min. During the holding period, a mixture of nitrogen and hydrogen was introduced, with nitrogen introduced at a rate of 100 sccm and hydrogen at a rate of 50 sccm. After cooling to room temperature, the temperature was raised to 700℃, and a mixture of argon, hydrogen, and methane was introduced, with argon introduced at a rate of 200 sccm, hydrogen introduced at a rate of 100 sccm, and methane introduced at a rate of 50 sccm. The temperature was held for 15 min, and then allowed to cool to room temperature to obtain the base material. The amount of boron powder added was 13% of the mass of the glass flake raw material. Step 2: Preparation of fiber material. The raw materials for the fiber material include polyvinylidene fluoride, nylon 6, polyphenylsulfone, silicon carbide whiskers, nano-alumina, nano-silica, sheet boron nitride, treatment solution, N,N-dimethylformamide, dimethyl sulfoxide, acetone, maleic anhydride-grafted polypropylene, and polyethylene glycol. The mass of the fiber material is 70% of the mass of the base material. The method for preparing the fiber material is as follows: Polyvinylidene fluoride, nylon 6, and polyphenylsulfone are dried at 80℃, 100℃, and 120℃ for 3.5h, respectively, and then mixed to obtain a first premix, which is set aside. Silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and a treatment solution are mixed to obtain a second premix, which is set aside. N,N-dimethylformamide, dimethyl sulfoxide, and acetone are added to a reaction vessel, mixed, and heated to 78℃. Then, the first premix, maleic anhydride-grafted polypropylene, and polyethylene glycol are added sequentially, and the mixture is stirred at 90rpm for 1h. The second premix is ​​then added, and the mixture is stirred for another 1h. The resulting product is ultrasonically dispersed at 250W for 35min to obtain a mixture. The mixture is injected into an electrospinning device, and a fiber membrane is obtained after electrospinning. The fiber membrane is treated at 120℃ for 4h, and then pulverized to a particle size of 120μm to obtain the fiber material. The spinning equipment is set to a voltage of 22kV, a receiving distance of 14.5cm, and an injection rate of 0.8mL / h. The mass ratio of polyvinylidene fluoride, nylon 6, and polyphenylene sulfone is 5.5:3.5:1; the mass ratio of silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and the treatment solution is 1:0.5:0.5:0.3:1; the second premix is ​​35% of the mass of the first premix; and N,N-dimethylformamide, dimethyl sulfoxide, and acetone are also present. The mass ratio is 1:0.25:0.12. The mass of the first premix is ​​28% of the mass of N,N-dimethylformamide, the mass of maleic anhydride-grafted polypropylene is 1.5% of the mass of N,N-dimethylformamide, the mass of polyethylene glycol is 1.5% of the mass of N,N-dimethylformamide, and the treatment solution is prepared by mixing KH550, KH560, ethanol, and deionized water in a mass ratio of 1:1:10:3. Step 3: Mix the base material and fiber material at 150 rpm for 25 min to obtain the filler.

[0028] A method for preparing a corrosion-resistant chain ring composite material suitable for non-metallic chains includes the following steps: S1: The filler is sent into the drying oven and pre-dried at 105℃ for 3 hours; S2: Epoxy resin, diluent, dispersant, and curing agent are added to a mixer. The mixer is set to 50 rpm and stirred for 35 minutes. Ten minutes after stirring begins, pre-dried filler is added in three batches. The resulting product is sent to a vacuum degassing machine and degassed for 18 minutes at -0.095 MPa. The resulting product is poured into a mold and left to stand at room temperature for 18 hours. Then it is sent to an oven and kept at 43℃ for 2 hours, 70℃ for 2 hours, and 110℃ for 2 hours to obtain a corrosion-resistant chain ring composite material suitable for non-metallic chains. Example 3

[0029] A corrosion-resistant chain plate ring composite material suitable for non-metallic chains comprises the following raw materials in parts by weight: 100 parts epoxy resin, 10 parts diluent, 1.5 parts dispersant, 25 parts curing agent and 30 parts filler; The epoxy resin used is bisphenol A type epoxy resin E51, and the diluent used is benzyl glycidyl ether.

[0030] The dispersant used is BYK-W 980, and the curing agent is isophorone diamine.

[0031] The packing material is prepared by the following method: Step 1: Preparation of the base material. The raw material for the base material is glass flakes. The method for preparing the base material is as follows: glass flakes are sequentially cleaned with acetone and ethanol for 30 minutes, then dried at 120°C for 4 hours. The resulting glass flakes are then immersed in a 0.1M stannous chloride solution for 15 minutes, washed, and then immersed in a 0.001M palladium chloride solution for 15 minutes. A 0.01M nickel nitrate ethanol solution is then uniformly sprayed onto the continuously tumbling glass flake surface. After spraying, boron powder is added and mixed, and the mixture is dried at 70°C for 2 hours. The resulting product is then spread evenly in a tube furnace, and argon gas is introduced at 200 sccm. The furnace is set to [unclear - likely a specific temperature range]. The temperature was increased to 800℃ at a rate of 10℃ / min, and held at that temperature for 60 min. During the holding period, a mixture of nitrogen and hydrogen was introduced, with a nitrogen flow rate of 100 sccm and a hydrogen flow rate of 50 sccm. After cooling to room temperature, the temperature was increased to 750℃, and a mixture of argon, hydrogen, and methane was introduced, with an argon flow rate of 200 sccm, a hydrogen flow rate of 100 sccm, and a methane flow rate of 50 sccm. The temperature was held for 20 min, and then allowed to cool to room temperature to obtain the base material. The amount of boron powder added was 14% of the mass of the glass flake raw material. Step 2: Preparation of fiber material. The raw materials for the fiber material include polyvinylidene fluoride, nylon 6, polyphenylsulfone, silicon carbide whiskers, nano-alumina, nano-silica, sheet boron nitride, treatment solution, N,N-dimethylformamide, dimethyl sulfoxide, acetone, maleic anhydride-grafted polypropylene, and polyethylene glycol. The mass of the fiber material is 80% of the mass of the base material. The method for preparing the fiber material is as follows: Polyvinylidene fluoride, nylon 6, and polyphenylsulfone are dried at 80℃, 100℃, and 120℃ for 4 hours, respectively, and then mixed to obtain a first premix, which is set aside. Silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and the treatment solution are mixed to obtain a second premix, which is set aside. N,N-dimethylformamide, dimethyl sulfoxide, and acetone are added to a reaction vessel, mixed, and heated to 80℃. Then, the first premix, maleic anhydride-grafted polypropylene, and polyethylene glycol are added sequentially, and the mixture is stirred at 100 rpm for 1 hour. The second premix is ​​then added, and the mixture is stirred for another hour. The resulting product is ultrasonically dispersed at 300W for 40 minutes to obtain a mixture. The mixture is injected into an electrospinning device, and a fiber membrane is obtained through electrospinning. The fiber membrane is treated at 120℃ for 4 hours, and then pulverized to a particle size of 140 μm to obtain the fiber material. The electrospinning equipment is set to a voltage of 25kV, a receiving distance of 16cm, and an injection rate of 1mL / h. The mass ratio of polyvinylidene fluoride, nylon 6, and polyphenylene sulfone is 6:4:1; the mass ratio of silicon carbide whiskers, nano-alumina, nano-silica, sheet-like boron nitride, and the treatment solution is 1:0.6:0.6:0.4:1; the mass of the second premix is ​​40% of the mass of the first premix; N,N-dimethylformamide, dimethyl sulfoxide, and propylene glycol are also present. The mass ratio of ketones is 1:0.3:0.15. The mass of the first premix is ​​30% of the mass of N,N-dimethylformamide, the mass of maleic anhydride-grafted polypropylene is 2% of the mass of N,N-dimethylformamide, the mass of polyethylene glycol is 2% of the mass of N,N-dimethylformamide, and the treatment solution is prepared by mixing KH550, KH560, ethanol, and deionized water in a mass ratio of 1:1:10:3. Step 3: Mix the base material and fiber material at 200 rpm for 30 minutes to obtain the filler.

[0032] A method for preparing a corrosion-resistant chain ring composite material suitable for non-metallic chains includes the following steps: S1: The filler is sent into the drying oven and pre-dried at 110℃ for 4 hours; S2: Epoxy resin, diluent, dispersant, and curing agent are added to a mixer. The mixer is set to 60 rpm and stirred for 40 minutes. Ten minutes after stirring begins, pre-dried filler is added in three batches. The resulting product is sent to a vacuum degassing machine and degassed for 20 minutes at -0.095 MPa. The resulting product is poured into a mold and left to stand at room temperature for 24 hours. Then it is sent to an oven and kept at 45℃ for 2 hours, 80℃ for 2 hours, and 120℃ for 2 hours to obtain a corrosion-resistant chain plate ring composite material suitable for non-metallic chains.

[0033] Comparative Example 1: The difference between this comparative example and Example 1 is that this comparative example does not contain fillers.

[0034] Comparative Example 2 differs from Example 1 in that it does not contain fiber material.

[0035] Comparative Example 3 differs from Example 1 in that it does not contain a base material.

[0036] Performance testing: The composite materials prepared in Examples 1-3 and Comparative Examples 1-3 were subjected to performance testing; Chemical performance testing: Corrosion resistance was tested according to ASTM B117-19 standard, with corrosion rate (mg / cm² / h) as the standard. Aging resistance was tested according to GB / T 7141-2008 standard, with weight change rate (%%) as the standard. The data obtained are recorded in the table below. Mechanical property testing: Tensile strength was tested according to ASTM D638-14 standard (MPa), flexural strength was tested according to ASTM D790-17 standard (MPa), and hardness was tested according to ASTM D2240-15 standard (Shore D). The data obtained are recorded in the table below.

[0037] Table 1 Analysis of the data in the comparison table shows that the composite materials prepared using the methods in Examples 1-3 have superior chemical and mechanical properties compared to Comparative Examples 1-3. Further analysis reveals that: In the chemical performance tests, Examples 1-3 exhibited low corrosion rates and small weight changes after 1000 hours of testing, indicating excellent corrosion resistance and stability. This is because the base material provides high surface roughness and chemical inertness, acting as a physical barrier to block corrosive media such as acids, alkalis, and salt spray. The fiber material forms a micro-nano network, enhancing the interfacial bonding with epoxy resin and preventing media penetration. Furthermore, the three-dimensional interwoven network constructed after mixing the base material and fiber material further enhances the corrosion resistance. In contrast, Comparative Example 1, lacking filler, showed a sharp increase in corrosion rate and weight change, indicating that the filler system lacked a barrier effect. The material properties degraded significantly, and the medium easily penetrated along the gaps between the molecular chains, leading to rapid corrosion. It also easily absorbed water. The corrosion rate and weight change rate of Comparative Example 2 after the absence of fiber material were between Comparative Example 1 and Comparative Example 3. This is because after the absence of fiber material, the base material flakes were not wrapped by the fiber network, and they were easy to agglomerate and form local defects. The medium penetrated along the defect points at an accelerated rate. Although the corrosion rate and weight change rate of Comparative Example 3 were better than those of Comparative Example 1 and Comparative Example 2 due to the absence of base material, there was still a large gap compared with Examples 1-3. This is because the fiber network lacked rigid support due to the absence of base material flakes, and the medium could penetrate the network pores. In the mechanical performance tests, the tensile strength, flexural strength, and hardness data of Examples 1-3 were excellent, indicating that the material possesses high strength, high rigidity, and wear resistance, and can replace traditional metal chains and chain links. This is due to the reinforcing effect of the filler system. The matrix material acts as a rigid skeleton, providing high hardness and load-bearing capacity, while the fiber material acts as a tough phase, absorbing impact energy and preventing crack propagation. Furthermore, the matrix material and fiber material provide both rigidity and toughness, which can further improve the overall mechanical properties of the material and solve the problem of insufficient mechanical strength of non-metallic materials. In contrast, Comparative Example 1, lacking filler, had the worst tensile strength, flexural strength, and hardness. This is because without filler reinforcement, pure epoxy resin is brittle and prone to breakage. In Comparative Example 2, lacking fiber material, the toughness decreased, and cracks were prone to propagation, leading to a decrease in strength. The tensile strength, flexural strength, and hardness were between those of Comparative Example 1 and Comparative Example 3. Although the tensile strength, flexural strength, and hardness of Comparative Example 3, lacking matrix material, were better than those of Comparative Examples 1 and 2, they were still inferior to those of Examples 1-3. This indicates that without matrix material, the rigidity was insufficient and the load-bearing capacity was weak, but the fiber network still provided some toughness.

[0038] By comparing and analyzing the relevant data in the table, it can be seen that the composite material prepared by this invention not only has good chemical properties but also good mechanical properties. This indicates that the corrosion-resistant chain ring composite material for non-metallic chains provided by this invention has a broader market prospect and is more suitable for widespread application.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A corrosion-resistant composite material for chain links suitable for non-metallic chains, characterized in that: It includes the following raw materials in parts by weight: 90-100 parts epoxy resin, 5-10 parts diluent, 0.5-1.5 parts dispersant, 20-25 parts curing agent, and 20-30 parts filler; The filler is prepared by the following method: Step 1: Preparation of the base material. The raw material for the base material is glass flakes. Step 2: Preparation of fiber material. The raw materials for the fiber material include polyvinylidene fluoride, nylon 6, polyphenylsulfone, silicon carbide whiskers, nano-alumina, nano-silica, sheet boron nitride, treatment solution, N,N-dimethylformamide, dimethyl sulfoxide, acetone, maleic anhydride-grafted polypropylene, and polyethylene glycol. The mass of the fiber material is 60-80% of the mass of the base material. Step 3: Mix the base material and fiber material at 100-200 rpm for 20-30 minutes to obtain the filler.

2. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 1, characterized in that, The method for preparing the base material is as follows: glass flakes are sequentially cleaned with acetone and ethanol for 30 minutes, then dried at 110–120°C for 2–4 hours. The resulting glass flakes are then immersed in a 0.1M stannous chloride solution for 10–15 minutes, washed, and then immersed in a 0.001M palladium chloride solution for 10–15 minutes. A 0.01M nickel nitrate ethanol solution is then uniformly sprayed onto the continuously tumbling glass flake surface. After spraying, boron powder is added and mixed, and the mixture is dried at 60–70°C for 1–2 hours. The resulting product is then spread evenly in a tube furnace and heated at 200°C. Argon gas is introduced into the atmosphere at a rate of 8–10 °C / min to raise the temperature to 600–800 °C. After raising the temperature, the temperature is held for 40–60 min. During the holding period, a mixture of nitrogen and hydrogen is introduced, with a nitrogen flow rate of 100 sccm and a hydrogen flow rate of 50 sccm. The temperature is then cooled to room temperature and heated to 650–750 °C. A mixture of argon, hydrogen, and methane is introduced, with an argon flow rate of 200 sccm, a hydrogen flow rate of 100 sccm, and a methane flow rate of 50 sccm. The temperature is held for 10–20 min and then allowed to cool to room temperature to obtain the base material.

3. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 1, characterized in that, The amount of boron powder added is 12-14% of the mass of the glass flake raw material.

4. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 1, characterized in that, The method for preparing the fiber material is as follows: Polyvinylidene fluoride, nylon 6, and polyphenylsulfone are dried at 80℃, 100℃, and 120℃ for 3-4 hours, respectively, and then mixed to obtain a first premix, which is set aside. Silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and the treatment solution are mixed to obtain a second premix, which is set aside. N,N-dimethylformamide, dimethyl sulfoxide, and acetone are added to a reaction vessel, mixed, and then heated to 75-80℃. Then, the first premix, maleic anhydride-grafted polypropylene, and polyethylene glycol are added sequentially, and the temperature is set to 80℃. The mixture was stirred at 100 rpm for 1 hour, then the second premix was added and stirred for another hour. The resulting product was ultrasonically dispersed at 200-300 W for 30-40 minutes to obtain a mixture. The mixture was injected into an electrospinning device and electrospinned to obtain a fiber membrane. The fiber membrane was treated at 120℃ for 4 hours and then pulverized to obtain a particle size of 100-140 μm to obtain a fiber material. The electrospinning device was set with a voltage of 20-25 kV, a receiving distance of 13-16 cm, and an injection rate of 0.6-1 mL / h.

5. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 4, characterized in that, The mass ratio of polyvinylidene fluoride, nylon 6, and polyphenylsulfone is 5-6:3-4:1; the mass ratio of silicon carbide whiskers, nano-alumina, nano-silica, flake boron nitride, and treatment liquid is 1:0.4-0.6:0.4-0.6:0.2-0.4:1; the mass of the second premix is ​​30-40% of the mass of the first premix; the mass ratio of N,N-dimethylformamide, dimethyl sulfoxide, and acetone is 1:0.2-0.3:0.1-0.15; the mass of the first premix is ​​25-30% of the mass of N,N-dimethylformamide; the mass of maleic anhydride-grafted polypropylene is 1-2% of the mass of N,N-dimethylformamide; and the mass of polyethylene glycol is 1-2% of the mass of N,N-dimethylformamide.

6. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 4, characterized in that, The treatment solution is prepared by mixing KH550, KH560, ethanol, and deionized water, with a mass ratio of 1:1:10:

3.

7. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 1, characterized in that, The epoxy resin is selected from bisphenol A type epoxy resin E51, and the diluent is selected from benzyl glycidyl ether.

8. The corrosion-resistant chain plate ring composite material suitable for non-metallic chains according to claim 1, characterized in that, The dispersant is BYK-W 980, and the curing agent is isophorone diamine.

9. The method for preparing corrosion-resistant chain ring composite material suitable for non-metallic chains according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1: The filler is sent into the drying oven and pre-dried at 100-110℃ for 2-4 hours; S2: Epoxy resin, diluent, dispersant, and curing agent are added to a mixer. The mixer is set to 40-60 rpm and stirred for 30-40 minutes. Ten minutes after stirring begins, pre-dried filler is added in three batches. The resulting product is sent to a vacuum degassing machine and degassed at -0.095 MPa for 15-20 minutes. The resulting product is poured into a mold and left to stand at room temperature for 12-24 hours. Then it is sent to an oven and kept at 40-45℃ for 2 hours, 60-80℃ for 2 hours, and 100-120℃ for 2 hours to obtain a corrosion-resistant chain ring composite material suitable for non-metallic chains.

10. The application of the corrosion-resistant chain ring composite material for non-metallic chains prepared by the method for preparing corrosion-resistant chain ring composite materials for non-metallic chains according to claim 9, characterized in that, Corrosion-resistant chain plate ring composite material is used for the assembly and preparation of non-metallic chains. Non-metallic chains are composed of chain links with similar structures connected in series. Each chain link is assembled from a pair of chain plates with the same structure, a central pin, a wear-resistant ring and a stainless steel cotter pin. Each chain plate includes a chain plate ring made of corrosion-resistant chain plate ring composite material and two bushings.

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