Polymer polyethylene braided rope

Abstract

The utility model discloses a kind of macromolecular polyethylene braided ropes, belong to braided rope technical field, including core layer, buffer transition layer, reinforcing braid layer, protective layer and wear layer, the buffer transition layer is wrapped in the outside of core layer, the reinforcing braid layer is woven and wrapped in the outside of buffer transition layer, the protective layer extrusion coating is in the outside of reinforcing braid layer, the wear layer is coated in the surface of protective layer;By adopting the core layer twisted by multiple strands of ultrahigh-strength macromolecular polyethylene fiber as the core stress component of rope, ensure that rope has sufficient tensile strength and anti-fracture ability, the impact of external force on core layer can be effectively buffered by buffer transition layer, the overall tensile strength and structural stability of rope can be further enhanced by reinforcing braid layer, the erosion of external chemical substances to main braid layer can be resisted by protective layer, the internal each layer structure can be protected from damage by wear layer, prolong the overall service life of rope.

Description

Technical Field

[0001] This utility model belongs to the field of braided rope technology, specifically relating to a high molecular weight polyethylene braided rope. Background Technology

[0002] In many fields such as industrial production, marine operations, outdoor rescue, and transportation, braided ropes serve as an important load-bearing and traction tool, and their performance directly affects operational safety, efficiency, and cost control.

[0003] As various industries continue to demand lighter equipment, easier operation, and greater durability, traditional braided ropes (such as nylon ropes, polyester ropes, and steel wire ropes) have gradually revealed their insurmountable performance shortcomings and can no longer fully meet the needs of modern application scenarios.

[0004] Traditional braided ropes, which use a single braided layer or a simple core-sheath structure, generally have low tensile strength and are prone to irreversible elongation deformation under long-term continuous stress, resulting in rope slack, changes in effective length, and poor resistance to chemical corrosion and abrasion. Utility Model Content

[0005] The purpose of this invention is to provide a high-molecular-weight polyethylene braided rope to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high molecular weight polyethylene braided rope, comprising a core layer, a buffer transition layer, a reinforcing braid layer, a protective layer, and a wear-resistant layer. The buffer transition layer is wound around the outside of the core layer, the reinforcing braid layer is woven around the outside of the buffer transition layer, the protective layer is extruded and coated on the outside of the reinforcing braid layer, and the wear-resistant layer is coated on the surface of the protective layer.

[0007] In a preferred embodiment, the core layer is made of multiple strands of ultra-high strength polyethylene fibers twisted together.

[0008] In a preferred embodiment, the buffer transition layer is formed by spirally winding a modified polyurethane elastomer.

[0009] In a preferred embodiment, the reinforcing braided layer is woven from high molecular weight polyethylene filaments.

[0010] In a preferred embodiment, the protective layer is formed by extrusion coating of ethylene-tetrafluoroethylene copolymer.

[0011] In a preferred embodiment, the wear-resistant layer is formed by spraying ceramic particle-reinforced epoxy resin.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This high-molecular-weight polyethylene braided rope uses a core layer made of multiple strands of ultra-high-strength high-molecular-weight polyethylene fibers twisted together as the core force-bearing component of the rope. This provides basic strength support for the rope, bears the tensile force experienced during use, and ensures that the rope has sufficient tensile strength and fracture resistance. The buffer transition layer has a certain degree of elasticity and flexibility, which can effectively buffer the impact of external forces on the core layer. When the rope is subjected to external impact, the buffer transition layer can absorb some of the impact energy through its own elastic deformation, reducing the direct effect of external forces on the core layer and preventing the core layer from breaking due to excessive instantaneous stress. This high-molecular-weight polyethylene braided rope enhances the overall tensile strength and structural stability of the rope through reinforced braiding layers. The addition of antioxidants and UV absorbers improves its anti-aging and UV resistance, enabling long-term use in harsh environments such as outdoor exposure. The protective layer resists the erosion of the main braided layer by external chemicals, protecting the reinforced braided layer from damage. The abrasion-resistant layer, in direct contact with the external environment, withstands friction and wear during use, protecting the internal structural layers from damage and extending the overall service life of the rope. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the layered structure of this utility model.

[0014] In the diagram: 1. Core layer; 2. Buffer transition layer; 3. Reinforcing braided layer; 4. Protective layer; 5. Wear-resistant layer. Detailed Implementation

[0015] The present invention will be further described below with reference to the embodiments.

[0016] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0017] Please see Figure 1-2This invention provides a high-molecular-weight polyethylene (HMWPE) braided rope, comprising a core layer 1, a buffer transition layer 2, a reinforcing braided layer 3, a protective layer 4, and a wear-resistant layer 5. The core layer 1 is composed of multiple strands of ultra-high-strength HMWPE fibers twisted together. These HMWPE fibers contain 0.5%-1% nano-sized silica particles. Through a special surface modification treatment, the nano-silica particles are uniformly dispersed in the HMWPE matrix, forming a strong bond with the polymer chains, effectively inhibiting polymer chain creep and reducing elongation deformation of the rope under long-term stress. As the core load-bearing component of the rope, the core layer 1 provides basic strength support, bearing the tensile force experienced during use, ensuring sufficient tensile strength and fracture resistance. Simultaneously, the added nano-silica particles enhance the rope's creep resistance and extend its service life.

[0018] The buffer transition layer 2 is wound around the outside of the core layer 1. Buffer transition layer 2 is made of modified polyurethane elastomer spirally wound. 10%-15% high-molecular-weight polyethylene short fibers are introduced into the polyurethane elastomer for blending modification. This retains the excellent elasticity and buffering properties of the polyurethane elastomer while utilizing the high-molecular-weight polyethylene short fibers to improve the material's strength and wear resistance. The modified polyurethane elastomer has a Shore hardness controlled at 60-70D and an elongation at break greater than 400%, which well meets the performance requirements of the buffer transition layer. Buffer transition layer 2 has a certain degree of elasticity and flexibility, effectively buffering the impact of external forces on the core layer 1. When the rope is subjected to external impact, buffer transition layer 2 can absorb some of the impact energy through its own elastic deformation, reducing the direct effect of external forces on the core layer 1 and preventing the core layer 1 from breaking due to excessive instantaneous stress. At the same time, this layer can also fill the gaps on the surface of the core layer 1, making the overall structure of the rope more compact and providing a flat foundation for the subsequent weaving of the reinforcing braid layer 3.

[0019] The reinforcing braided layer 3 is woven around the outside of the buffer transition layer 2. The reinforcing braided layer 3 is woven from high-molecular-weight polyethylene filaments, using these filaments as the main raw material. During the production process of the high-molecular-weight polyethylene filaments, 2%-3% of antioxidants (such as hindered phenolic antioxidant 1010) and 1%-2% of ultraviolet absorbers (such as benzotriazole ultraviolet absorber UV-327) are added to improve the anti-aging and ultraviolet resistance of the main braided layer. The reinforcing braided layer 3 further enhances the overall tensile strength and structural stability of the rope. Simultaneously, by adding antioxidants and ultraviolet absorbers, it improves the rope's anti-aging and ultraviolet resistance, enabling it to be used for extended periods in harsh environments such as outdoor exposure.

[0020] The protective layer 4 is extruded and coated onto the outside of the reinforcing braided layer 3. The protective layer 4 is made of ethylene-tetrafluoroethylene copolymer, which possesses excellent chemical corrosion resistance, high and low temperature resistance, and electrical insulation properties, while also exhibiting good flexibility and processability. 0.3%-0.5% of nano-silver (Ag) antibacterial agent is added to the ethylene-tetrafluoroethylene copolymer material. This nano-silver antibacterial agent has broad-spectrum antibacterial properties, effectively inhibiting the growth and reproduction of bacteria, fungi, and other microorganisms, preventing the rope from developing odors and being damaged due to microbial growth in humid environments. The protective layer 4 can resist the erosion of the main braided layer by external chemicals (such as seawater, acids, and alkalis), protecting the reinforcing braided layer 3 from damage. Its excellent high and low temperature resistance allows the rope to be used normally in extreme temperature environments, while its electrical insulation properties make it suitable for applications with electrical safety requirements. The added nano-silver antibacterial agent also imparts antibacterial properties to the rope, expanding its application areas, such as in medical rescue and food processing.

[0021] Abrasion-resistant layer 5 is coated on the surface of protective layer 4. Abrasion-resistant layer 5 is formed by spraying ceramic particle-reinforced epoxy resin. This coating uses epoxy resin as a matrix and adds 30%-40% nano-alumina (Al2O3) ceramic particles. Epoxy resin has good adhesion and chemical corrosion resistance, while the nano-alumina ceramic particles have extremely high hardness and abrasion resistance, significantly improving the coating's abrasion resistance. A special dispersion process ensures that the nano-alumina ceramic particles are uniformly dispersed in the epoxy resin matrix, guaranteeing uniform and stable coating performance. Abrasion-resistant layer 5 is in direct contact with the external environment and can withstand friction and abrasion during rope use, protecting the internal structures from damage and extending the overall service life of the rope. Simultaneously, this coating also has a certain degree of water resistance, preventing moisture from penetrating into the rope and avoiding reduced strength in the internal fibers due to water absorption.

[0022] The working principle and usage process of this utility model are as follows: First, the core layer 1, as the core force-bearing component of the rope, provides basic strength support for the rope, bears the tension force experienced by the rope during use, and ensures that the rope has sufficient tensile strength and fracture resistance. At the same time, the added nano-silica particles enhance the rope's creep resistance and extend its service life. The buffer transition layer 2 has a certain degree of elasticity and flexibility, which can effectively buffer the impact of external forces on the core layer 1. When the rope is subjected to external impact, the buffer transition layer 2 can absorb some of the impact energy through its own elastic deformation, reducing the direct effect of external forces on the core layer 1 and preventing the core layer 1 from breaking due to excessive instantaneous force. Simultaneously, this layer fills the gaps on the surface of the core layer 1, making the overall structure of the rope more compact and providing a smooth foundation for the subsequent weaving of the reinforcing braid layer 3. The reinforcing braid layer 3 further enhances the overall tensile strength and structural stability of the rope. Furthermore, by adding antioxidants and UV absorbers, it improves the rope's anti-aging and UV resistance, enabling long-term use in harsh environments such as outdoor exposure. The protective layer 4 resists the erosion of the main braided layer by external chemicals (such as seawater, acids, and alkalis), protecting the reinforcing braid layer 3 from damage. Its excellent high and low temperature resistance allows the rope to be used normally in extreme temperature environments, while its electrical insulation properties make it suitable for applications with electrical safety requirements. The added nano-silver antibacterial agent also gives the rope antibacterial properties, expanding its application areas, such as in medical rescue and food processing. The abrasion-resistant layer 5, in direct contact with the outside world, can withstand friction and wear during use, protecting the internal structure from damage and extending the overall service life of the rope. Simultaneously, this coating also has a certain degree of water resistance, preventing moisture from penetrating into the rope and avoiding a decrease in strength due to water absorption by the internal fibers.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-molecular-weight polyethylene braided rope, comprising a core layer (1), a buffer transition layer (2), a reinforcing braided layer (3), a protective layer (4), and a wear-resistant layer (5), characterized in that: The buffer transition layer (2) is wrapped around the outside of the core layer (1), the reinforcing braided layer (3) is woven around the outside of the buffer transition layer (2), the protective layer (4) is extruded and covered on the outside of the reinforcing braided layer (3), and the wear-resistant layer (5) is coated on the surface of the protective layer (4).

2. The high molecular weight polyethylene braided rope according to claim 1, characterized in that: The core layer (1) is made of multiple strands of ultra-high strength high molecular weight polyethylene fibers twisted together.

3. The high molecular weight polyethylene braided rope according to claim 1, characterized in that: The buffer transition layer (2) is made of modified polyurethane elastomer spirally wound.

4. The high molecular weight polyethylene braided rope according to claim 1, characterized in that: The reinforcing braided layer (3) is woven from high molecular weight polyethylene filaments.

5. The high molecular weight polyethylene braided rope according to claim 1, characterized in that: The protective layer (4) is formed by extrusion coating of ethylene-tetrafluoroethylene copolymer.

6. The high molecular weight polyethylene braided rope according to claim 1, characterized in that: The wear-resistant layer (5) is formed by spraying ceramic particle-reinforced epoxy resin.

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