Biomass-based carbon fiber metal wire rope and preparation method thereof

Abstract

The invention relates to the field of metal wire rope preparation, in particular to a biomass-based carbon fiber metal wire rope and a preparation method thereof. The invention provides a preparation method of a biomass-based carbon fiber metal wire rope, which comprises two steps of S1 biomass-based carbon fiber preparation and S2 biomass-based carbon fiber metal wire rope preparation, and the prepared biomass-based carbon fiber metal wire rope has high strength, high rigidity, high corrosion resistance, high temperature resistance and high conductivity. According to the preparation method, biomass-based carbon fibers are adopted as a reinforcing material, dependence on petroleum-based carbon fibers is reduced, the carbon footprint of the material is effectively reduced, and the requirement for green and environment-friendly sustainable development is met.

Description

Technical Field

[0001] The invention relates to the field of metal wire rope preparation, and in particular to a biomass-based carbon fiber metal wire rope and a preparation method thereof. Background Art

[0002] Metal wire rope is another material widely used in hoisting, bridge construction, aerospace engineering and other fields. However, in extreme environments such as aerospace, metal wire rope also faces some challenges. For example, long-term exposure to harsh conditions such as space radiation and extreme temperature differences may cause metal wire rope to degrade in performance, such as decreased strength and increased brittleness, thus affecting its safety and service life. In order to overcome these defects of metal wire rope, researchers began to explore new materials prepared by composite preparation of carbon fiber and metal wire rope. This composite material combines the lightweight, high strength and environmental protection characteristics of carbon fiber with the high strength and corrosion resistance of metal wire rope, showing a more excellent comprehensive performance. Especially in terms of high strength and electrical conductivity, this new composite material performs particularly well. However, most of the existing carbon fibers rely on petroleum-based resources, which not only makes the production cost of carbon fiber high, but also causes deep concerns about resource sustainability due to the limited and non-renewable nature of petroleum resources. With the increasing global awareness of environmental protection and the popularization of the concept of sustainable development, finding a carbon fiber alternative material that can maintain high performance and environmental protection has become a key issue to be solved in the field of materials science.

[0003] As a new type of sustainable and environmentally friendly material, biomass materials use biomass resources such as crop waste and wood processing residues as raw materials. They can effectively alleviate dependence on petroleum resources, reduce carbon emissions, and promote the resource utilization of agricultural waste, achieving a win-win situation in economic and environmental benefits.

[0004] Therefore, it is of great research significance to transform biomass materials into high-performance carbon fibers through a series of preparation methods, and then combine these bio-based carbon fibers with metal wire ropes efficiently and stably to further improve the comprehensive performance of composite materials. Summary of the invention

[0005] In response to the above-mentioned existing technical problems, the present invention aims to provide a biomass-based carbon fiber metal wire rope and a preparation method thereof. The biomass-based carbon fiber metal wire rope prepared by this method has high strength, high rigidity, high corrosion resistance, high temperature resistance and high conductivity, and the preparation uses renewable resources, which effectively reduces the carbon footprint of the material and meets the green and environmentally friendly sustainable development requirements.

[0006] The present invention discloses a method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0007] S1 Preparation of biomass-based carbon fiber: the biomass raw materials are screened, cleaned and crushed, and then placed in a steam reactor, high-pressure saturated steam is quickly introduced into the steam reactor, pressurized and heated, so that the biomass raw materials and steam undergo heat exchange, and the reactants in the steam reactor are quickly cooled after the reaction is completed, and the cooled reaction products are separated and solid products are collected, and the collected solid products are washed and filtered with an eluent, and the filter cakes are collected and combined and dried to obtain biomass fibers after drying; the biomass fibers obtained above are subjected to carbonization reaction to finally form biomass-based carbon fibers;

[0008] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature and reaction time, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, obtain the metal wire rope base material; place the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, add it to a hot press for hot pressing to obtain a biomass-based carbon fiber metal wire rope.

[0009] Preferably, in the S1 biomass-based carbon fiber preparation step, the steam reactor is heated to 200-300° C. and pressurized to 4-8 MPa.

[0010] Preferably, in the step S1 of preparing biomass-based carbon fibers, the reaction time of the biomass raw material in the steam reactor is 10 to 30 minutes.

[0011] Preferably, in the S1 biomass-based carbon fiber preparation step, the cooling temperature is 20-30°C.

[0012] Preferably, in the S1 biomass-based carbon fiber preparation step, the separation is centrifugal separation, the rotation speed of the centrifuge is 300 to 500 rpm, and the centrifugation time is 5 to 10 min.

[0013] Preferably, in the S1 biomass-based carbon fiber preparation step, the eluent is a hydrochloric acid solution with a mass fraction of 5 to 10%; the washing times are 2 to 4 times; and the drying temperature is 50 to 70°C.

[0014] Preferably, in the S1 biomass-based carbon fiber preparation step, the reaction temperature of the carbonization reaction is 400-600° C.; and the reaction time is 3-4 hours.

[0015] Preferably, in the S2 biomass-based carbon fiber metal wire rope preparation step, the temperature of the oxidation reaction is 60 to 80°C; and the reaction time is 1 to 3 hours.

[0016] Preferably, in the step of preparing the S2 biomass-based carbon fiber metal wire rope, the hot pressing temperature of the hot pressing molding is 260-360°C; the hot pressing pressure is 30-50 MPa, and the hot pressing molding time is 3-5 hours.

[0017] A biomass-based carbon fiber metal wire rope is prepared by any one of the above-mentioned methods for preparing a biomass-based carbon fiber metal wire rope.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a biomass-based carbon fiber wire rope and a preparation method thereof. In the S1 biomass-based carbon fiber preparation step, high-temperature and high-pressure steam is used to treat the raw materials, and the component separation and structural change of the raw materials are achieved through an instantaneous pressure relief process. The steam explosion method can effectively separate active fibers, and no or less chemicals are used, which is environmentally friendly and has low energy consumption. In the S2 biomass-based carbon fiber wire rope preparation step, the surface of the metal wire rope is first cleaned and oxidized because the surface roughness of the metal wire rope can be increased and the bonding force with the carbon fiber can be improved; the metal wire rope and the bio-based carbon fiber are woven in a multi-strand weaving method so that the metal wire rope and the carbon fiber are fully combined, and hot pressing is performed after full combination, and the composite structure is cured at high temperature to enhance the bonding force between the metal wire rope and the carbon fiber, ensure the stability of the composite structure in use, and further improve the density and tensile strength of the material.

[0020] The biomass-based carbon fiber metal wire rope prepared by the preparation method of the biomass-based carbon fiber metal wire rope provided by the present invention has high strength, high rigidity, high corrosion resistance, high temperature resistance and high conductivity. The preparation method uses biomass-based carbon fiber as a reinforcing material, which not only reduces the dependence on petroleum-based carbon fiber, but also effectively reduces the carbon footprint of the material, meeting the requirements of green and environmentally friendly sustainable development. DETAILED DESCRIPTION

[0021] The following examples are provided for a better understanding of the present invention, but are not intended to limit the best mode of implementation, nor to limit the content and protection scope of the present invention. Any product identical or similar to the present invention obtained by anyone under the inspiration of the present invention or by combining the features of the present invention with other prior arts shall fall within the protection scope of the present invention.

[0022] If no specific experimental steps or conditions are specified in the examples, the conventional experimental steps or conditions described in the literature in the field can be used. If no manufacturer is specified for the reagents or instruments used, they are all conventional reagent products that can be obtained commercially.

[0023] Embodiment 1: A method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0024] S1 Preparation of biomass-based carbon fiber: The biomass raw materials are screened, cleaned, crushed and placed in a steam reactor, and high-pressure saturated steam is quickly introduced into the steam reactor. The temperature of the steam reactor is set to 200°C and the pressure is set to 4MPa, so that the biomass raw materials and steam undergo heat exchange. After the reaction is completed, the reactants in the steam reactor are quickly cooled to 30°C for cooling. The cooled reaction products are centrifuged to collect solid products. The centrifugal speed of the centrifuge during centrifugation is 300rpm and the centrifugal time is 5min. The collected solid products are washed and filtered with an eluent. The washing liquid used is a hydrochloric acid solution with a mass fraction of 5%, and the washing is performed twice in total. The filter cakes are collected and combined and dried. The drying temperature of the dryer is 50°C and the drying time is 2h. After drying, biomass fibers are obtained. The biomass fibers obtained above are carbonized. The reaction temperature during the carbonization reaction is 400°C and the reaction time is 3h. After the carbonization reaction is completed, biomass-based carbon fibers are formed.

[0025] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature to 60°C, and the reaction time to 1h, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, the metal wire rope base material is obtained; the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 are placed in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, it is added to a hot press for hot pressing molding, wherein the hot pressing temperature of the hot press is set to 260°C, the pressure is 30MPa, and the time is 3h to obtain the biomass-based carbon fiber metal wire rope.

[0026] Embodiment 2: A method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0027] S1 Preparation of biomass-based carbon fiber: The biomass raw materials are screened, cleaned, crushed and placed in a steam reactor, high-pressure saturated steam is quickly introduced into the steam reactor, and the temperature of the steam reactor is set to 220°C and the pressure is set to 4.5MPa, so that the biomass raw materials and steam undergo heat exchange. After the reaction is completed, the reactants in the steam reactor are quickly cooled to 28°C for cooling, and the cooled reaction products are centrifuged to collect solid products. The centrifugal speed of the centrifuge during centrifugation is 350rpm and the centrifugal time is 6min; the collected solid products are washed and filtered with an eluent, and the washing liquid used is a hydrochloric acid solution with a mass fraction of 6%, and the washing is performed 3 times in total; the filter cakes are collected and combined and dried, and the drying temperature of the dryer is 55°C and the drying time is 2.2h; biomass fibers are obtained after drying; the biomass fibers obtained above are subjected to a carbonization reaction, and the reaction temperature during the carbonization reaction is 450°C and the reaction time is 3.2h; biomass-based carbon fibers are formed after the carbonization reaction is completed.

[0028] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature to 65°C, and the reaction time to 1.5h, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, the metal wire rope base material is obtained; the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 are placed in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, it is added to a hot press for hot pressing molding, wherein the hot pressing temperature of the hot press is set to 280°C, the pressure is 35MPa, and the time is 3.5h to obtain the biomass-based carbon fiber metal wire rope.

[0029] Embodiment 3: A method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0030] S1 Preparation of biomass-based carbon fiber: The biomass raw materials are screened, cleaned and crushed, and then placed in a steam reactor. High-pressure saturated steam is quickly introduced into the steam reactor. The temperature of the steam reactor is set to 240°C and the pressure is set to 5MPa, so that the biomass raw materials and steam undergo heat exchange. After the reaction is completed, the reactants in the steam reactor are quickly cooled to 26°C for cooling. The cooled reaction products are centrifuged to collect solid products. The centrifugal speed of the centrifuge during centrifugation is 400rpm and the centrifugal time is 7min. The collected solid products are washed and filtered with an eluent. The washing liquid used is a hydrochloric acid solution with a mass fraction of 7%, and the washing is performed 4 times in total. The filter cakes are collected and combined and dried. The drying temperature of the dryer is 60°C and the drying time is 2.5h. After drying, biomass fibers are obtained. The biomass fibers obtained above are subjected to carbonization reaction. The reaction temperature during the carbonization reaction is 500°C and the reaction time is 3.4h. After the carbonization reaction is completed, biomass-based carbon fibers are formed.

[0031] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature to 70°C, and the reaction time to 2h, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, a metal wire rope base material is obtained; the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 are placed in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, it is added to a hot press for hot pressing, wherein the hot pressing temperature of the hot press is set to 300°C, the pressure is 40MPa, and the time is 4h to obtain a biomass-based carbon fiber metal wire rope.

[0032] Embodiment 4: A method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0033] S1 Preparation of biomass-based carbon fiber: The biomass raw materials are screened, cleaned and crushed, and then placed in a steam reactor. High-pressure saturated steam is quickly introduced into the steam reactor. The temperature of the steam reactor is set to 260°C and the pressure is set to 6MPa, so that the biomass raw materials and steam undergo heat exchange. After the reaction is completed, the reactants in the steam reactor are quickly cooled to 24°C for cooling. The cooled reaction products are centrifuged to collect solid products. The centrifugal speed of the centrifuge during centrifugation is 450rpm and the centrifugal time is 8min. The collected solid products are washed and filtered with an eluent. The washing liquid used is a hydrochloric acid solution with a mass fraction of 8%, and the washing is performed 4 times in total. The filter cakes are collected and combined and dried. The drying temperature of the dryer is 65°C and the drying time is 3h. After drying, biomass fibers are obtained. The biomass fibers obtained above are subjected to a carbonization reaction. The reaction temperature during the carbonization reaction is 550°C and the reaction time is 3.6h. After the carbonization reaction is completed, biomass-based carbon fibers are formed.

[0034] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature to 75°C, and the reaction time to 2.5h, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, the metal wire rope base material is obtained; the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 are placed in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, it is added to a hot press for hot pressing molding, wherein the hot pressing temperature of the hot press is set to 320°C, the pressure is 45MPa, and the time is 4.5h to obtain the biomass-based carbon fiber metal wire rope.

[0035] Embodiment 5: A method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0036] S1 Preparation of biomass-based carbon fiber: The biomass raw materials are screened, cleaned and crushed, and then placed in a steam reactor. High-pressure saturated steam is quickly introduced into the steam reactor. The temperature of the steam reactor is set to 280°C and the pressure is set to 7MPa, so that the biomass raw materials and steam can exchange heat. After the reaction is completed, the reactants in the steam reactor are quickly cooled to 22°C for cooling. The cooled reaction products are centrifuged to collect solid products. The centrifugal speed of the centrifuge during centrifugation is 500rpm and the centrifugal time is 9min. The collected solid products are washed and filtered with an eluent. The washing liquid used is a hydrochloric acid solution with a mass fraction of 9%, and the washing is performed 4 times in total. The filter cakes are collected and combined and dried. The drying temperature of the dryer is 70°C and the drying time is 3h. After drying, biomass fibers are obtained. The biomass fibers obtained above are carbonized. The reaction temperature during the carbonization reaction is 600°C and the reaction time is 3.8h. After the carbonization reaction is completed, biomass-based carbon fibers are formed.

[0037] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature to 80°C, and the reaction time to 3h, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, the metal wire rope base material is obtained; the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 are placed in a weaving machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, it is added to a hot press for hot pressing, wherein the hot pressing temperature of the hot press is set to 340°C, the pressure is 50MPa, and the time is 5h to obtain the biomass-based carbon fiber metal wire rope.

[0038] Embodiment 6: A method for preparing a biomass-based carbon fiber metal wire rope, comprising the following preparation steps:

[0039] S1 Preparation of biomass-based carbon fiber: The biomass raw materials are screened, cleaned, crushed and placed in a steam reactor, and high-pressure saturated steam is quickly introduced into the steam reactor. The temperature of the steam reactor is set to 300°C and the pressure is set to 8MPa, so that the biomass raw materials and steam undergo heat exchange. After the reaction is completed, the reactants in the steam reactor are quickly cooled to 22°C for cooling. The cooled reaction products are centrifuged to collect solid products. The centrifugal speed of the centrifuge during centrifugation is 500rpm and the centrifugal time is 10min. The collected solid products are washed and filtered with an eluent. The washing liquid used is a hydrochloric acid solution with a mass fraction of 9%, and the washing is performed 4 times in total. The filter cakes are collected and combined and dried. The drying temperature of the dryer is 70°C and the drying time is 3h. After drying, biomass fibers are obtained. The biomass fibers obtained above are carbonized. The reaction temperature during the carbonization reaction is 600°C and the reaction time is 4h. After the carbonization reaction is completed, biomass-based carbon fibers are formed.

[0040] S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature to 80°C, and the reaction time to 3h, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, the metal wire rope base material is obtained; the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 are placed in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, it is added to a hot press for hot pressing, wherein the hot pressing temperature of the hot press is set to 360°C, the pressure is 50MPa, and the time is 5h to obtain the biomass-based carbon fiber metal wire rope.

[0041] Example 7: Commercially available metal wire rope.

[0042] The same performance tests were performed on the biomass-based carbon fiber metal wire ropes prepared in Examples 1 to 6 and the commercially available metal wire rope in Example 7. The test data are shown in the following table:

[0043] Example Strength (MPa) Rigidity(MPa) High temperature resistance (℃) Resistivity (Ω·m) Corrosion resistance 1 1980 2000 356 <![CDATA[1.6×10 -8 ]]> No corrosion 2 1990 2300 362 <![CDATA[1.53×10 -8 ]]> No corrosion 3 1995 2400 373 <![CDATA[1.50×10 -8 ]]> No corrosion 4 2000 2450 385 <![CDATA[1.46×10 -8 ]]> No corrosion 5 2002 2452 384 <![CDATA[1.45×10 -8 ]]> No corrosion 6 2001 2451 383 <![CDATA[1.46×10 -8 ]]> No corrosion 7 1770 1550 280 <![CDATA[1.0×10 -7 ]]> corrosion

[0044] From the test data in the above table, it can be seen that the biomass-based carbon fiber metal wire ropes prepared in Examples 1 to 6 have higher strength, rigidity, corrosion resistance, high temperature resistance and conductivity than the commercially available metal wire rope in Example 7. Among them, the performance of Examples 4 to 6 is better than that of Examples 1 to 3. Considering various factors such as energy consumption, the preparation method conditions of Example 4 are the best.

[0045] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention.

Claims

1. A method for preparing a biomass-based carbon fiber metal wire rope, characterized in that: The method comprises the following preparation steps: S1 Preparation of biomass-based carbon fiber: the biomass raw materials are screened, cleaned and crushed, and then placed in a steam reactor, high-pressure saturated steam is quickly introduced into the steam reactor, pressurized and heated, so that the biomass raw materials and steam undergo heat exchange, and the reactants in the steam reactor are quickly cooled after the reaction is completed, and the cooled reaction products are separated and solid products are collected, and the collected solid products are washed and filtered with an eluent, and the filter cakes are collected and combined and dried to obtain biomass fibers after drying; the biomass fibers obtained above are subjected to carbonization reaction to finally form biomass-based carbon fibers; S2 Preparation of biomass-based carbon fiber metal wire rope: After grinding and pickling the metal wire rope to remove surface impurities, place it in a reactor, control the reactor temperature and reaction time, so that the surface of the metal wire rope undergoes oxidation reaction, and after the oxidation reaction is completed, obtain the metal wire rope base material; place the metal wire rope base material and the biomass-based carbon fiber obtained in step S1 in a braiding machine for weaving, and after all the biomass-based carbon fiber is evenly woven on the metal wire rope base material, add it to a hot press for hot pressing to obtain a biomass-based carbon fiber metal wire rope.

2. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S1 biomass-based carbon fiber preparation step, the steam reactor is heated to 200-300° C. and pressurized to 4-8 MPa.

3. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S1 biomass-based carbon fiber preparation step, the reaction time of the biomass raw material in the steam reactor is 10 to 30 minutes.

4. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S1 biomass-based carbon fiber preparation step, the cooling temperature is 20-30°C.

5. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S1 biomass-based carbon fiber preparation step, the separation is centrifugal separation, the rotation speed of the centrifuge is 300-500 rpm, and the centrifugation time is 5-10 min.

6. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S1 biomass-based carbon fiber preparation step, the eluent is a hydrochloric acid solution with a mass fraction of 5 to 10%; the washing times are 2 to 4 times; and the drying temperature is 50 to 70°C.

7. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S1 biomass-based carbon fiber preparation step, the reaction temperature of the carbonization reaction is 400-600° C.; and the reaction time is 3-4 hours.

8. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S2 biomass-based carbon fiber metal wire rope preparation step, the temperature of the oxidation reaction is 60 to 80° C.; and the reaction time is 1 to 3 hours.

9. The method for preparing a biomass-based carbon fiber metal wire rope according to claim 1, characterized in that: In the S2 biomass-based carbon fiber metal wire rope preparation step, the hot pressing temperature of the hot pressing molding is 260-360° C.; the hot pressing pressure is 30-50 MPa, and the hot pressing molding time is 3-5 hours.

10. A biomass-based carbon fiber metal wire rope prepared by the method for preparing a biomass-based carbon fiber metal wire rope according to any one of claims 1 to 9.