Basalt fiber rope with high tensile strength

By designing high-tension basalt fiber ropes and using a structure of supporting core frames, inner core rope strands, outer core rope strands and sheaths, the problem of existing ropes being prone to break under high-strength loads is solved, and higher tensile strength, stability and durability are achieved.

CN119754063AActive Publication Date: 2025-04-04CHINA FIBER NEW MATERIAL TECH (CHENGDE) CO LTD
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Patent Information

Application Number
CN202510093813.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-04-04
Estimated Expiration
2045-01-21

AI Technical Summary

Technical Problem

Existing ropes are prone to tensile deformation or breaking under high-strength loads, and are insufficient in durability and reliability, making it difficult to meet the needs of use in complex environments.

Method used

The design of high-tension strength basalt fiber ropes is adopted, including support core frames, inner core strands, outer core strands and sheaths. The stress is dispersed layer by layer, the tensile strength and fatigue resistance are enhanced, and the wear resistance and high temperature resistance are improved through elastic cladding.

Benefits of technology

It significantly improves the overall tensile strength and stability of the rope, extends the service life, enhances performance in extreme loads and complex environments, reduces material costs, and realizes resource recycling.

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Abstract

The invention discloses a high-tensile-strength basalt fiber rope, and relates to the technical field of ropes, the high-tensile-strength basalt fiber rope comprises a supporting core frame, an inner core rope strand is arranged on the outer side of the supporting core frame, an outer core rope strand is arranged on the outer side of the inner core rope strand, and a sheath is arranged on the outer side of the outer core rope strand. The rope is composed of the supporting core frame, the inner core rope strands, the outer core rope strands and the sheath, stress can be dispersed layer by layer when the rope is stressed, the overall tensile strength and stability of the rope are improved, the sheath serves as the outermost layer of the rope, the additional protection effect is provided, and the rope is protected. The rope can be prevented from being influenced by external factors such as mechanical damage, chemical corrosion or ultraviolet irradiation, and the completeness and the stable performance of the rope are kept.
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Description

Technical Field

[0001] The invention relates to the technical field of ropes, in particular to a basalt fiber rope with high tensile strength. Background Art

[0002] Ropes are an indispensable part of our daily lives. They are usually made of multiple strands of fiber or wire, and have sufficient strength and toughness to withstand various tension challenges. Whether used to tie objects, fasten structures, or assist in climbing, ropes play a vital role with their unique properties.

[0003] In the field of traditional rope materials, synthetic fibers such as nylon and polyester were once popular due to their good physical properties and relatively low cost. However, with the in-depth expansion of usage scenarios and the continuous improvement of people's requirements for rope performance, the limitations of these traditional materials have gradually become apparent. Especially under high-intensity loads, ropes such as nylon and polyester are prone to tensile deformation, and even break or fatigue damage in extreme cases, which greatly reduces the reliability and service life of the ropes.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a high tensile strength basalt fiber rope to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solution adopted by the present invention is as follows: A high tensile strength basalt fiber rope comprises a supporting core frame, inner core strands are arranged on the outer side of the supporting core frame, outer core strands are arranged on the outer side of the inner core strands, and a sheath is arranged on the outer side of the outer core strands.

[0007] Furthermore, in order to improve the strength and stability of the rope, the core rope provides flexibility and basic support, the reinforcing strands can improve the tensile strength and fatigue resistance, and the elastic coating enhances the overall wear resistance, high temperature resistance, flame retardancy, corrosion resistance and environmental adaptability, while reducing weight and extending service life, so that the rope has excellent strength, stability and durability under extreme loads and complex environments. The supporting core frame includes a core rope and reinforcing strands wrapped around the outside of the core rope, and an elastic coating is coated between the core rope and the reinforcing strands; the reinforcing strands are twisted together into multiple steel wires; the elastic coating is prepared from silicone rubber powder, ethylene-propylene block copolymer, thickener, flame retardant, defoaming agent, bactericide, diatomaceous earth, foam ceramic particles, nano-silicon dioxide, and nano-iron dioxide.

[0008] Furthermore, in order to extend the service life of the rope, the method of alternating basalt fiber and glass fiber is used, combined with high-performance basalt fiber materials prepared from basalt fiber waste and additives for reinforcement, which not only improves the overall strength, toughness and high temperature resistance of the inner core rope strands, but also effectively reduces material costs and realizes resource recycling. The inner core rope strands are composed of basalt fiber and glass fiber; and the basalt fiber and glass fiber are wrapped around the outside of the elastic coating layer in an alternating manner; the basalt fiber is prepared from basalt, additives, zinc borate, boron oxide and phosphorus pentoxide; the additives include at least one of aluminum oxide, magnesium oxide, calcium oxide, silicon dioxide or titanium oxide; the basalt is basalt fiber waste.

[0009] Furthermore, in order to improve the fire resistance of the rope, by using flexible flame-retardant fibers and applying flame-retardant coatings, the fire resistance of the rope is significantly improved, and the safety and stability of the rope in high temperature environments such as fire are enhanced. The outer core rope strands are composed of a number of flexible flame-retardant fibers wrapped around the outside of basalt fibers and glass fibers, and the outside of the flexible flame-retardant fibers are coated with flame-retardant coatings; the material of the flexible flame-retardant fibers is polyamide fiber.

[0010] The beneficial effects of the present invention are: 1. The present invention is composed of a supporting core frame, inner core strands, outer core strands and a sheath, so that the rope can disperse stress layer by layer when subjected to force, thereby improving the overall tensile strength and stability of the rope. The sheath, as the outermost layer of the rope, provides additional protection, can prevent the rope from being affected by external factors such as mechanical damage, chemical corrosion or ultraviolet radiation, and keep the rope intact and stable in performance.

[0011] 2. By setting up a supporting core frame, the strength and stability of the rope are improved. The core rope provides flexibility and basic support, and the strengthened strands can improve the tensile strength and fatigue resistance. The elastic coating layer enhances the overall wear resistance, high temperature resistance, flame retardancy, corrosion resistance and environmental adaptability, while reducing weight and extending service life, so that the rope has excellent strength, stability and durability under extreme loads and complex environments.

[0012] 3. By setting up inner core strands, the service life of the rope can be extended. By using the method of alternating basalt fiber and glass fiber, combined with high-performance basalt fiber materials prepared from basalt fiber waste and additives for reinforcement, not only the overall strength, toughness and high temperature resistance of the inner core strands are improved, but also the material cost is effectively reduced and resource recycling is achieved.

[0013] 4. By setting the outer core strands, the fire resistance of the rope is improved. By using flexible flame-retardant fibers and applying flame-retardant coatings, the fire resistance of the rope is significantly improved, and the safety and stability of the rope in high temperature environments such as fire are enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 2 is a schematic structural diagram of a high tensile strength basalt fiber rope according to an embodiment of the present invention; Figure 2 It is a schematic structural diagram of a supporting core frame in a high tensile strength basalt fiber rope according to an embodiment of the present invention.

[0016] In the figure: 1. Support core frame; 101. Core rope; 102. Reinforcement strands; 103. Elastic coating layer; 2. Inner core strands; 201. Basalt fiber; 202. Glass fiber; 3. Outer core strands; 301. Flexible flame-retardant fiber; 4. Sheath. DETAILED DESCRIPTION

[0017] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0018] According to an embodiment of the present invention, a high tensile strength basalt fiber rope is provided.

[0019] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-2 As shown, according to an embodiment of the present invention, the high tensile strength basalt fiber rope comprises a supporting core frame 1, an inner core strand 2 is arranged on the outer side of the supporting core frame 1, an outer core strand 3 is arranged on the outer side of the inner core strand 2, and a sheath 4 is arranged on the outer side of the outer core strand 3.

[0020] It should be noted that the material of the sheath 4 includes a high molecular polymer material, which is used to effectively protect the rope from erosion and damage from the external environment.

[0021] Among them, high molecular polymer materials include polyurethane (PU), polyvinyl chloride (PVC), nylon (such as polyamide 6 or polyamide 66), etc.

[0022] The polyurethane sheath has good elasticity and abrasion resistance, and can adapt to the bending and stretching of the rope.

[0023] The PVC sheath has excellent corrosion resistance and UV resistance, and can resist erosion from the external environment.

[0024] Nylon sheath is known for its high strength and wear resistance, and is suitable for situations where it needs to withstand greater tensile forces.

[0025] With the aid of the above-mentioned technical scheme of the present invention, the present invention is composed of a supporting core frame, inner core rope strands, outer core rope strands and a sheath, so that the rope can disperse stress layer by layer when subjected to force, thereby improving the overall tensile strength and stability of the rope. The sheath, as the outermost layer of the rope, provides additional protection, which can prevent the rope from being affected by external factors such as mechanical damage, chemical corrosion or ultraviolet radiation, thereby maintaining the integrity of the rope and stable performance.

[0026] In one embodiment, for the above-mentioned supporting core frame 1, the supporting core frame 1 includes a core rope 101 and a reinforcing strand 102 wrapped around the outside of the core rope 101, and an elastic coating layer 103 is coated between the core rope 101 and the reinforcing strand 102; the reinforcing strand 102 is formed by twisting multiple steel wires; the elastic coating layer 103 is prepared from silicone rubber powder, ethylene-propylene block copolymer, thickener, flame retardant, defoaming agent, bactericide, diatomaceous earth, foam ceramic particles, nano-silicon dioxide, and nano-iron dioxide, thereby improving the strength and stability of the rope, providing flexibility and basic support through the core rope 101, and the reinforcing strand 102 can improve the tensile strength and fatigue resistance, while the elastic coating layer 103 enhances the overall wear resistance, high temperature resistance, flame retardancy, corrosion resistance and environmental adaptability, while reducing weight and extending service life, so that the rope has excellent strength, stability and durability under extreme loads and complex environments.

[0027] It should be noted that the elastic coating layer 103 is made of a plurality of composite materials, each of which has unique properties, and together provides the rope with enhanced wear resistance, high temperature resistance, flame retardancy, corrosion resistance and environmental adaptability. The following is an explanation of the components of the elastic coating layer 103: Silicone rubber powder: It is a polymer material with excellent heat resistance, cold resistance, aging resistance and radiation resistance. The silicon-oxygen bond energy in its molecular structure is high, so silicone rubber has excellent high temperature resistance and cold resistance. In the elastic coating layer, silicone rubber powder provides good heat resistance, cold resistance and aging resistance, allowing the rope to maintain stable performance under extreme temperatures.

[0028] Ethylene-propylene block copolymer: It is a polymer material synthesized by polymerization of ethylene and propylene monomers, with excellent mechanical properties, thermal stability and chemical corrosion resistance. In the elastic coating layer, ethylene-propylene block copolymer enhances the strength and toughness of the material, and improves the tensile strength and fatigue resistance of the rope.

[0029] Thickener: A substance that can increase the viscosity of a liquid or solution. In the preparation process of the elastic coating layer, the thickener is used to adjust the viscosity of the material to make it easier to coat on the outside of the supporting core frame and ensure that the coating is uniform and stable. The thickener includes at least one of polyvinyl alcohol, xanthan gum, polyacrylate, polyurethane thickener or layered silicate thickener.

[0030] Flame retardant: It is an additive that can reduce the flammability of materials and inhibit the spread of flames. In the elastic coating, the flame retardant improves the flame retardancy of the rope, allowing it to maintain structural integrity in high-temperature environments such as fires and reduce the risk of fire. Flame retardants include at least one of inorganic flame retardants (such as aluminum hydroxide, zinc borate), organic halogen flame retardants (such as decabromodiphenyl ether, chlorinated paraffin), phosphorus flame retardants (such as red phosphorus, ammonium polyphosphate), nitrogen flame retardants (such as melamine), silicon-based flame retardants (such as silicone rubber powder) or nano flame retardants (such as nano silicon dioxide, montmorillonite).

[0031] Defoamer: Defoamer is a substance that can destroy the stability of foam and is used to eliminate bubbles in liquids or solutions. In the preparation process of the elastic coating, the defoamer is used to eliminate bubbles in the coating to ensure that the coating is smooth and defect-free, and to improve the appearance quality and durability of the rope. The defoamer includes at least one of a silicone defoamer, a mineral oil defoamer or a polyether defoamer.

[0032] Bactericide: A bactericide is a substance that can kill or inhibit the growth of microorganisms. In the elastic coating, the bactericide is used to inhibit the growth of microorganisms, prevent the rope from being damaged by microbial erosion during use, and extend the service life of the rope. Bactericides include at least one of inorganic bactericides, organic bactericides, or natural bactericides. Inorganic bactericides mainly rely on the antibacterial effect of metal ions (such as silver ions and copper ions) and have the characteristics of long-term and durable effects. Organic bactericides rely on chemical components to directly interfere with the growth process of microorganisms. There are many types and the effect is fast. Natural bactericides come from plants or natural minerals.

[0033] Diatomaceous earth: It is a natural mineral material with a porous structure and good adsorption and dispersibility. In the elastic coating layer, diatomaceous earth is used as a filler to increase the hardness and wear resistance of the coating, while improving the moisture absorption and air permeability of the rope. The amount of diatomaceous earth added generally needs to be controlled within a reasonable range (usually 5%-15% of the total coating). Too much will reduce the flexibility and ductility of the material.

[0034] Foam ceramic particles: a ceramic material with a porous structure, which has excellent thermal insulation and mechanical properties. In the elastic coating layer, foam ceramic particles are used as fillers to increase the thermal insulation and mechanical properties of the coating and improve the stability of the rope in extreme environments.

[0035] Nano-silica: It is a silicon dioxide powder with ultra-fine nano-scale size, which has excellent reinforcement, thixotropy and optical properties. In the elastic coating layer, nano-silica is used as a reinforcing agent, which can significantly improve the mechanical strength and toughness of the coating, while improving the wear resistance and aging resistance of the rope. Its ultra-fine nano-scale size enables nano-silica to be evenly dispersed in the coating, forming a good combination with the matrix material, thereby enhancing the overall performance of the coating; the reinforcing effect of nano-silica is not only reflected in the static mechanical properties, but also in the dynamic wear and aging process. During the use of the rope, the coating will be subjected to various forces such as friction, stretching, bending, etc. The addition of nano-silica can significantly improve the wear resistance and aging resistance of the coating and extend the service life of the rope.

[0036] Nano-iron dioxide: It is a nano-material with special physical and chemical properties, and has excellent magnetic and catalytic properties. In the elastic coating, nano-iron dioxide may be used as a catalyst to catalytically degrade harmful substances and improve the environmental performance of the rope. For example, in certain specific environments, the rope may be exposed to some harmful substances. Nano-iron dioxide can accelerate the decomposition and transformation of these harmful substances through its catalytic properties, thereby protecting the environment and human health.

[0037] In one embodiment, for the above-mentioned inner core rope strands 2, the inner core rope strands 2 are composed of basalt fibers 201 and glass fibers 202; and the basalt fibers 201 and the glass fibers 202 are wrapped around the outside of the elastic coating layer 103 in an alternating manner; the basalt fibers 201 are prepared from basalt, additives, zinc borate, boron oxide and phosphorus pentoxide; the additives include at least one of aluminum oxide, magnesium oxide, calcium oxide, silicon dioxide or titanium oxide; basalt is basalt fiber waste, thereby extending the service life of the rope, and the basalt fibers 201 and glass fibers 202 are alternately wound, combined with high-performance basalt fiber materials prepared from basalt fiber waste and additives for reinforcement, which not only improves the overall strength, toughness and high temperature resistance of the inner core rope strands 2, but also effectively reduces material costs and realizes resource recycling.

[0038] It should be noted that the basalt fiber 201 is prepared from basalt fiber waste as the main raw material. The waste is processed and recycled, and then reinforced with specific additives to form high-performance fibers.

[0039] As a common reinforcing material, glass fiber 202 is arranged alternately with basalt fiber in this design to form the inner core strand 2. Glass fiber is known for its excellent electrical insulation and dimensional stability. When it is combined with basalt fiber, it can further improve the rigidity and support capacity of the entire system without sacrificing flexibility. More importantly, the synergistic effect between the two enables the composite material to maintain a stable working state in a wider temperature range.

[0040] In one embodiment, for the above-mentioned outer core rope strands 3, the outer core rope strands 3 are composed of a plurality of flexible flame-retardant fibers 301 wrapped around the outside of basalt fibers 201 and glass fibers 202, and the outside of the flexible flame-retardant fibers 301 are coated with a flame-retardant coating; the flexible flame-retardant fibers 301 are made of polyamide fibers, thereby improving the fire resistance of the rope. By using flexible flame-retardant fibers and coating them with a flame-retardant coating, the fire resistance of the rope is significantly improved, and the safety and stability of the rope in high temperature environments such as fires are enhanced.

[0041] It should be noted that flame retardant coatings mainly use halogen-free flame retardants, silicon-based coatings or ceramic-based coatings. The application of flame retardant coatings on the outer core strands is not just a simple addition of a protective film, but is based on complex chemical principles to achieve effective control of flames. When the temperature rises, the flame retardant coating will undergo a series of physical and chemical changes, including but not limited to: Carbonization: Certain components in the coating will decompose into carbonaceous residues at high temperatures. These substances can form a dense carbon layer on the fiber surface, which acts as an air barrier.

[0042] Cooling effect: Some flame retardants can reduce the local temperature by absorbing heat, thereby slowing down the burning rate.

[0043] Dilution effect: The release of non-combustible gases (such as carbon dioxide) to dilute the surrounding oxygen concentration and inhibit the development of flames.

[0044] Covering effect: Solid matter in a molten state is generated to cover the fiber surface, preventing the flame from directly contacting the fiber itself.

[0045] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0046] In actual application, when the rope is subjected to stress, the tension is transmitted layer by layer from the sheath 4 to the outer core rope strands 3 and the inner core rope strands 2, and finally borne by the supporting core frame 1. The coordinated force distribution of each layer of the structure can avoid local stress concentration and improve the overall tensile strength and stability. The sheath 4 is responsible for protecting against external environmental influences; the outer core rope strands 3 provide fire resistance, wear resistance and buffering functions; the inner core rope strands 2 enhance flexibility and dynamic adaptability; the supporting core frame 1 serves as the core bearing layer to provide basic strength and mechanical stability.

[0047] In summary, with the aid of the above technical solutions of the present invention, the present invention is composed of a support core frame, inner core strands, outer core strands and a sheath, so that the rope can disperse stress layer by layer when subjected to force, thereby improving the overall tensile strength and stability of the rope. The sheath, as the outermost layer of the rope, provides additional protection, which can prevent the rope from being affected by external factors such as mechanical damage, chemical corrosion or ultraviolet radiation, and keep the rope intact and stable in performance. By setting the support core frame 1, the strength and stability of the rope are improved, the core rope 101 provides flexibility and basic support, the reinforcing strands 102 can improve the tensile strength and fatigue resistance, and the elastic coating layer 103 enhances the overall wear resistance, high temperature resistance, flame retardancy, corrosion resistance and environmental adaptability, while reducing weight and extending service life, so that the rope has excellent strength, stability and durability under extreme loads and complex environments. By providing the inner core strands 2, the service life of the rope can be extended. By using the method of alternately surrounding basalt fiber 201 and glass fiber 202, combined with high-performance basalt fiber materials prepared from basalt fiber waste and additives for reinforcement, not only the overall strength, toughness and high temperature resistance of the inner core strands 2 are improved, but also the material cost is effectively reduced and resource recycling is achieved. By providing the outer core strands 3, the fire resistance of the rope is improved. By using flexible flame-retardant fibers and applying flame-retardant coatings, the fire resistance of the rope is significantly improved, and the safety and stability of the rope in high temperature environments such as fire are enhanced.

[0048] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high tensile strength basalt fiber rope, characterized in that: The high tensile strength basalt fiber rope comprises a supporting core frame (1), an inner core strand (2) is arranged on the outer side of the supporting core frame (1), an outer core strand (3) is arranged on the outer side of the inner core strand (2), and a sheath (4) is arranged on the outer side of the outer core strand (3).

2. The high tensile strength basalt fiber rope according to claim 1, characterized in that: The supporting core frame (1) comprises a core rope (101) and a reinforcing strand (102) wrapped around the outside of the core rope (101), and an elastic coating layer (103) is coated between the core rope (101) and the reinforcing strand (102).

3. The high tensile strength basalt fiber rope according to claim 2, characterized in that: The reinforcing strand (102) is formed by twisting a plurality of steel wires.

4. The high tensile strength basalt fiber rope according to claim 2, characterized in that: The elastic coating layer (103) is prepared from silicone rubber powder, ethylene-propylene block copolymer, thickener, flame retardant, defoamer, bactericide, diatomaceous earth, foam ceramic particles, nano silicon dioxide, and nano iron dioxide.

5. The high tensile strength basalt fiber rope according to claim 4, characterized in that: The inner core strand (2) is composed of basalt fiber (201) and glass fiber (202); Furthermore, the basalt fibers (201) and the glass fibers (202) are wrapped around the outside of the elastic coating layer (103) in an alternating manner.

6. The high tensile strength basalt fiber rope according to claim 1, characterized in that: The basalt fiber (201) is prepared from basalt, additives, zinc borate, boron oxide and phosphorus pentoxide.

7. The high tensile strength basalt fiber rope according to claim 6, characterized in that: The additive includes at least one of aluminum oxide, magnesium oxide, calcium oxide, silicon dioxide or titanium oxide.

8. The high tensile strength basalt fiber rope according to claim 6, characterized in that: The basalt is basalt fiber waste.

9. The high tensile strength basalt fiber rope according to claim 5, characterized in that: The outer core strands (3) are composed of a plurality of flexible flame-retardant fibers (301) wrapped around the outside of the basalt fibers (201) and the glass fibers (202), and the outside of the flexible flame-retardant fibers (301) is coated with a flame-retardant coating.

10. The high tensile strength basalt fiber rope according to claim 9, characterized in that: The material of the flexible flame-retardant fiber (301) is polyamide fiber.

Citation Information

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