High-temperature-resistant and radiation-resistant high-strength composite rope and preparation method and application thereof

Abstract

The application discloses a high-strength composite rope with high temperature resistance and radiation resistance and a preparation method and application thereof. The application comprises the following steps: S1, twisting ultra-high molecular weight polyethylene fibers into ultra-high molecular weight polyethylene yarns with a certain diameter; S2, wrapping two spindles of basalt fiber yarns on a wrapping machine to cover the twisted ultra-high molecular weight polyethylene yarns obtained in S1 to prepare basalt-ultra-high molecular weight polyethylene composite yarns; and S3, braiding the basalt-ultra-high molecular weight polyethylene composite yarns obtained in S2 into a hollow rope, cutting, knotting and glueing the rope after braiding to a certain length to obtain the high-strength composite rope with high temperature resistance and radiation resistance. The yarns of the composite rope are made of two materials of ultra-high molecular weight polyethylene fibers and basalt fibers, the rigidity of the ultra-high molecular weight polyethylene fiber rope can be improved, the radiation resistance, atomic oxygen resistance and other performances can be improved as much as possible, and the tensile strength of the rope is not reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rope manufacturing, in particular to a high-strength composite rope resistant to high temperature and radiation, and a preparation method and application thereof. BACKGROUND

[0002] The existing steel wire rope has great strength and high durability, but its elasticity is small, it is not resistant to impact load, it is hard, it cannot withstand sharp bending and kinking, and the steel cable density is large, the rope weight is very heavy, it is difficult to hold in operation, it is easy to slip from the hand, sometimes the broken steel wire head leaks out of the surface of the rope, and it is easy to cause the phenomenon of hand piercing. And if it is exposed to space environment for a long time, due to the alternating high and low temperature of the environment, large radiation dose and wear and tear, etc. The potential impact on its use safety often brings inconvenience and even danger during use and operation, so in some high-strength rope application scenarios involving outer space operations, it is necessary to find a substitute for steel wire rope.

[0003] To solve the above problems, the existing research uses fiber rope to replace steel wire rope. For example, ultra-high molecular weight polyethylene (UHMWPE), aramid, polyimide and other organic fiber materials are widely used in military, public security, border defense, armed police and other bulletproof protection fields, as well as high-performance rope net and other civilian fields due to their small density, extremely high specific strength and specific modulus, good chemical stability, corrosion resistance and other advantages. However, although the organic fiber rope has high tensile strength, it is soft and not suitable for long-term outer space environment operation requirements, so the rope made of it has deficiencies in rigidity and radiation resistance, and does not meet the use requirements of high-performance rope net in aerospace. SUMMARY

[0004] The present application aims to solve the above problems of the prior art, and provides a high-strength composite rope resistant to high temperature and radiation, and a preparation method and application thereof.

[0005] The preparation method of the high-strength composite rope resistant to high temperature and radiation comprises the following steps:

[0006] S1: twist the ultra-high molecular weight polyethylene fiber into an ultra-high molecular weight polyethylene fiber yarn of a certain diameter;

[0007] S2: wrap two spindles of basalt fiber yarn on a wrapping machine to cover the twisted ultra-high molecular weight polyethylene fiber yarn obtained in S1 to obtain basalt-ultra-high molecular weight polyethylene composite yarn;

[0008] S3: the basalt-ultra high molecular weight polyethylene composite yarn obtained in S2 is separated and assembled on the knitting spindle of a high-speed knitting machine; the basalt-ultra high molecular weight polyethylene composite yarn on the knitting spindle of the high-speed knitting machine is divided into two groups of strands, the two groups of strands are oppositely wrapped and interlaced to form a hollow rope, and the hollow rope is cut, knotted and glued after being knitted to a certain length to obtain a high-strength composite rope with high temperature resistance and radiation resistance.

[0009] Further, in step S1, 1 strand of 100 tex ultra high molecular weight polyethylene fiber is twisted to form an ultra high molecular weight polyethylene fiber yarn with a diameter of 0.6 mm.

[0010] Further, in step S1, the twist is 25T / 10cm during twisting.

[0011] Further, in step S1, the twist direction is S or Z.

[0012] Further, in step S1, the ultra high molecular weight polyethylene fiber yarn is a single strand of ultra high molecular weight polyethylene fiber without twisting or 1-5 strands of ultra high molecular weight polyethylene fiber with twisting.

[0013] Further, the ultra high molecular weight polyethylene fiber is 50 tex ultra high molecular weight polyethylene fiber, and 1-5 strands of ultra high molecular weight polyethylene fiber are twisted to form a twisted ultra high molecular weight polyethylene fiber with a twist of 50 twists / meter to 350 twists / meter.

[0014] Further, the basalt fiber yarn is 90 tex basalt fiber yarn.

[0015] Further, in step S2, the upper spindle basalt fiber yarn unwinding speed is 5000 r / min, the lower spindle basalt fiber yarn unwinding speed is 5000 r / min, and the wrapping twist is 400T / m.

[0016] The high-strength composite rope with high temperature resistance and radiation resistance prepared by the above preparation method.

[0017] The application of the high-strength composite rope with high temperature resistance and radiation resistance as a protective layer of a core layer, the core layer being a wire and cable used in outer space.

[0018] The yarn of the high-strength composite rope with high temperature resistance and radiation resistance of the application is made of two materials of ultra high molecular weight polyethylene fiber and basalt fiber, which can improve the rigidity of the ultra high molecular weight polyethylene fiber rope, improve the radiation resistance, atomic oxygen resistance and other properties as much as possible, and does not reduce the tensile strength of the rope.

[0019] In the composite rope of the present application, the ultra-high molecular weight polyethylene fiber is treated by plying and twisting, effectively improving the strength of the ultra-high molecular weight polyethylene fiber, and having a significant effect on improving the strength of the basalt-ultra-high molecular weight polyethylene composite yarn; the basalt-ultra-high molecular weight polyethylene composite yarn is prepared by wrapping basalt around ultra-high molecular weight polyethylene, so that the basalt-ultra-high molecular weight polyethylene composite yarn has good high-temperature resistance and radiation resistance, and the functionality of the composite rope is guaranteed; the composite rope is prepared by braiding or twisting, and the high-strength composite rope with high-temperature resistance and radiation resistance can be simply and quickly prepared.

[0020] The high-strength composite rope with high-temperature resistance and radiation resistance of the present application replaces steel wire ropes and fiber ropes made of single organic fibers; and avoids potential impacts on the safety in use due to factors such as high-low temperature alternation, large radiation dose, and abrasion in long-term exposure to space environment.

[0021] The high-strength composite rope with high-temperature resistance and radiation resistance prepared by the present application can reduce the weight of the rope, and can also be used as a flexible connecting device between ordinary objects.

[0022] In the high-strength radiation-resistant composite rope for spacecraft of the present application, a core layer can be added during the preparation of the first-level structure rope, and the high-strength radiation-resistant composite rope for spacecraft of the present application is used as a protective layer of the core layer, and the core layer can be a cylindrical object such as a wire or cable that needs to be used in outer space. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a preparation schematic diagram of the basalt-ultra-high molecular weight polyethylene composite yarn of the present application;

[0024] Figure 2 is the elongation of the composite rope at room temperature;

[0025] Figure 3 is the elongation of the composite rope after 200℃ treatment for 10 minutes;

[0026] Figure 4 is a fracture curve diagram after ultraviolet treatment.

[0027] 1, plied and twisted ultra-high molecular weight polyethylene fiber; 2, basalt fiber yarn; 3, basalt-ultra-high molecular weight polyethylene fiber composite yarn. DETAILED DESCRIPTION

[0028] The following is a specific embodiment of the present application, and the technical solutions of the present application are further described in combination with the drawings, but the present application is not limited to these embodiments.

[0029] Example 1

[0030] like Figure 1 As shown, this invention provides a high-strength composite rope that is resistant to high temperatures and radiation. The specific manufacturing steps are as follows:

[0031] S1: A single strand of 100 tex ultra-high molecular weight polyethylene (UHMWPE) fiber is twisted to form a UHMWPE fiber yarn with a diameter of 0.6 mm, wherein the twist is 25 T / 10 cm and the twist direction is S or Z. Here, the UHMWPE fiber yarn can also be (a) an untwisted single strand of UHMWPE fiber, or (b) a twisted 1-5 strand of UHMWPE fiber.

[0032] S2: Two spindles of basalt fiber yarn are wrapped with one strand of twisted ultra-high molecular weight polyethylene fiber yarn obtained from S1 on a wrapping machine to produce basalt-ultra-high molecular weight polyethylene composite yarn, such as... Figure 1 As shown. Here, the upper basalt unwinding rate is 5000 r / min, the lower basalt unwinding rate is 5000 r / min, and the wrapping twist is 400 T / m.

[0033] S3: The basalt-ultra-high molecular weight polyethylene composite yarn obtained in S2 is split and assembled onto the braiding spindle of a high-speed braiding machine; the basalt-ultra-high molecular weight polyethylene composite yarn on the braiding spindle of the high-speed braiding machine is divided into two groups of strands, which are interwoven and wrapped in opposite directions to form a hollow rope. After being braided to a certain length, it is cut, knotted and glued to obtain a high-strength radiation-resistant composite rope.

[0034] The high-strength composite rope prepared in this embodiment has a diameter of 3mm and a breaking strength of 1214N. Figure 2 As shown, after being treated at 200℃ for 10 minutes, the strength still remains above 800N. Figure 3 As shown. Additionally, after passing through 3W / m... 2 After 240 hours of UV irradiation, the intensity remained around 1100N, such as Figure 4 As shown. Specific Implementation Method Two:

[0036] The difference between this embodiment and Specific Embodiment 1 is that the number of spindles in the high-speed weaving machine described in step S3 is 4 to 64. Everything else is the same as in Specific Embodiment 1. Specific implementation method three:

[0038] The difference between this embodiment and specific embodiment one is that the high-speed braiding machine described in step S3 can add a rope core during the braiding process. The rope core can be a 1-10mm wire or cable or other linear material, and the braiding process parameters depend on the specific rope core diameter.

[0039] The high-temperature and radiation-resistant high-strength composite braided covering material can be obtained by the embodiment, the high-temperature and radiation-resistant high-strength composite rope obtained by the embodiment is used as a protective layer of a core layer, the core layer can be a linear material such as a wire cable required to be used in outer space, and the protective layer can meet the protection requirements such as radiation resistance, high-temperature resistance and cutting resistance of the core layer material.

[0040] The high-temperature and radiation-resistant high-strength composite rope of the embodiment replaces a steel wire rope and a fiber rope made of single organic fiber; and avoids potential influences on the safety in use of the rope due to factors such as high and low temperature alternation, large radiation dose and abrasion in long-term exposure to a space environment.

[0041] The high-temperature and radiation-resistant high-strength composite rope of the embodiment can be used as a flexible connecting device between ordinary objects while reducing the weight of the rope. At the same time, the manufacturing process of the embodiment is simple, and the installation and use are convenient, and the rope can be manufactured and assembled by existing equipment; therefore, the high-strength and radiation-resistant composite rope prepared by the embodiment has high practical value.

[0042] The above-mentioned aspects not involved are applicable to the prior art.

[0043] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, but will not deviate from the direction of the present application or exceed the scope defined by the appended claims. Those skilled in the art should understand that any modification, equivalent replacement, improvement, etc. made according to the technical essence of the present application to the above embodiments should be included in the protection scope of the present application.

Claims

1. Use of a high-temperature and radiation resistant high-strength composite rope, characterized in that: It is used as a protective layer of the core layer for the wire and cable used in outer space; the preparation method of the high-strength composite rope with high temperature resistance and radiation resistance comprises the following steps: S1: twisting the ultra-high molecular weight polyethylene fiber into ultra-high molecular weight polyethylene fiber yarn with a certain diameter; S2: wrapping the ultra-high molecular weight polyethylene fiber yarn obtained in S1 with two spindles of basalt fiber yarn on a wrapping machine to obtain basalt-ultra-high molecular weight polyethylene composite yarn; S3: separating the basalt-ultra-high molecular weight polyethylene composite yarn obtained in S2 and assembling it on the knitting spindle of a high-speed knitting machine; the basalt-ultra-high molecular weight polyethylene composite yarn on the knitting spindle of the high-speed knitting machine is divided into two groups of strands, and the two groups of strands are wrapped and knitted in opposite directions and interlaced with each other to form a hollow rope; after knitting to a certain length, cutting, knotting and gluing are performed to obtain the high-strength composite rope with high temperature resistance and radiation resistance; In step S1, when 1 strand of ultra-high molecular weight polyethylene fiber is used, 1 strand of 100 tex ultra-high molecular weight polyethylene fiber is twisted into ultra-high molecular weight polyethylene fiber yarn with a diameter of 0.6 mm; the twist during twisting is 25T / 10cm; the twist direction is S or Z; When more than 1 and less than or equal to 5 strands of ultra-high molecular weight polyethylene fiber are used, the ultra-high molecular weight polyethylene fiber is 50 tex ultra-high molecular weight polyethylene fiber, and the ultra-high molecular weight polyethylene fiber needs to be cabled, and then the cabled ultra-high molecular weight polyethylene fiber is twisted at 50 twists / meter to 350 twists / meter to obtain the ultra-high molecular weight polyethylene fiber yarn; In step S2, the upper spindle basalt fiber yarn unwinds at 5000 r / min, and the lower spindle basalt fiber yarn unwinds at 5000 r / min, and the wrapping twist is 400 T / m.

2. Use of a high temperature and radiation resistant high strength composite rope according to claim 1, characterized in that: The basalt fiber yarn is 90 tex basalt fiber yarn.

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