A sea type polytetrafluoroethylene composite polymer fiber rope and a preparation method thereof

Abstract

The application discloses a kind of offshore type polytetrafluoroethylene composite polymer fiber rope and preparation method thereof, it includes polymer polyethylene fiber braided inner core, middle layer polytetrafluoroethylene fiber braided outer core, outer layer polytetrafluoroethylene fiber braided sheath.The composite polymer fiber rope has outstanding durability and corrosion resistance, its unique molecular structure endows it with excellent weather resistance and chemical stability, so that it can be used in harsh environment for a long time without being affected.Compared with traditional rope material, the polytetrafluoroethylene composite polymer fiber rope is smooth and does not absorb moisture, so it can effectively prevent foreign matter from adhering, prevent the growth of aquatic organisms in marine environment, and has no pollution to marine environment.Secondly, polytetrafluoroethylene has low friction coefficient, which can minimize wear and friction of the rope during use.In addition, this kind of rope also has excellent wear resistance and corrosion resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore type polytetrafluoroethylene composite polymer fiber rope, in particular to an offshore type polytetrafluoroethylene composite polymer fiber rope and a preparation method thereof. BACKGROUND

[0002] In recent years, with the development of the "marine ranch" industry, the demand for fiber ropes has also increased. At the same time, not only the strength requirements of fiber ropes are increasing, but also the anti-fouling and anti-corrosion requirements of fiber ropes are increasing. The net clothes and net cages woven with fiber ropes need a lot of cleaning work and consume a lot of manpower and material resources because marine organisms adhere to the surface when they are immersed in seawater for a long time.

[0003] Traditional fiber ropes are made of nylon modified or high molecular polyethylene materials, and the anti-fouling effect is poor. Some people also brush anti-fouling paint on the fiber ropes, but the anti-fouling paint itself is toxic and easily falls off in the marine environment, so it cannot achieve the anti-fouling effect. Therefore, it is urgent to improve the fiber ropes used at sea. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an offshore type polytetrafluoroethylene composite polymer fiber rope and a preparation method thereof, which solves the problems raised in the background. To achieve the above purpose, the present application is realized by the following technical scheme: an offshore type polytetrafluoroethylene composite polymer fiber rope, comprising a high molecular polyethylene inner core, a polytetrafluoroethylene rope core and a polytetrafluoroethylene sheath.

[0005] Preferably, the high molecular polyethylene inner core is woven into 8 strands, 12 strands or more strands.

[0006] Preferably, the average molecular weight of the fibers of the high molecular polyethylene inner core is 100,000-500,000.

[0007] Preferably, a resin filler is arranged between the high molecular polyethylene inner cores.

[0008] Preferably, the polytetrafluoroethylene sheath is one or more kinds of fluorine-containing high molecular compounds.

[0009] Preferably, a resin adhesive layer is arranged between the high molecular polyethylene inner core and the polytetrafluoroethylene sheath.

[0010] Preferably, the resin adhesive layer contains one or more kinds of polyester resin, polyurethane resin, antibacterial agent, toughening agent and solvent.

[0011] A preparation method of an offshore type polytetrafluoroethylene composite polymer fiber rope, comprising the following preparation steps:

[0012] Step one: preparation of materials

[0013] Before making any rope, first prepare the high molecular polyethylene fiber and the polytetrafluoroethylene fiber, determine the specifications and colors of the high molecular fiber, select according to the needs, cut the high molecular fiber into the appropriate length, generally 2 to 3 times longer than the required rope length;

[0014] Step two: inner core weaving process

[0015] The high molecular fiber is woven into an inner core rope by a weaving machine (or manually) according to 4 strands, 8 strands, 12 strands, etc. A large amount of pulling force is required in this process to ensure that the rope is tight and not easy to loosen. We need to pay attention to the process when weaving the rope, and choose appropriate weaving methods and rope thickness to ensure that the rope is not easy to break when bearing heavy objects or severe scratches.

[0016] Step three: outer core weaving process

[0017] After completing the inner core weaving process, we need to weave the polytetrafluoroethylene fiber into an outer core rope by a weaving machine (or manually) according to 9 strands, 18 strands, 27 strands, etc. A large amount of pulling force is required in this process to ensure that the rope is tight and not easy to loosen. We need to pay attention to the process when weaving the rope, and choose appropriate weaving methods and rope thickness to ensure that the rope is not easy to break when bearing heavy objects or severe scratches.

[0018] Step four: weaving sheath process

[0019] After completing the core weaving process, we need to weave the polytetrafluoroethylene fiber into a polytetrafluoroethylene sheath by a weaving machine (or manually) according to the weaving sheath method. A large amount of pulling force is required in this process to ensure that the rope is tight and not easy to loosen. Apply sufficient pulling force to the inner core of the high molecular polyethylene fiber and the outer core of the polytetrafluoroethylene fiber, immerse them in a container containing a rope adhesive, and then cover them with an outer woven sheath.

[0020] Step five: cutting and packaging

[0021] After completing the rope making, cutting is required, either manually or using an electric cutter, to make the length meet the actual needs. After all the work is completed, the product is packaged.

[0022] The present application provides a marine type polytetrafluoroethylene composite high molecular fiber rope and its preparation method. It has the following beneficial effects:

[0023] The composite polymer fiber rope has excellent durability and corrosion resistance, and its unique molecular structure endows it with excellent weather resistance and chemical stability, allowing it to be used in harsh environments for a long time without being affected. Compared with traditional ropes, the polytetrafluoroethylene composite polymer fiber rope has a smooth surface and does not absorb moisture, so it can effectively prevent the attachment of foreign matter and prevent the growth of aquatic organisms in the marine environment, and it is pollution-free to the marine environment. Secondly, polytetrafluoroethylene has a low friction coefficient, which can minimize wear and friction during use. In addition, this rope also has excellent wear resistance and corrosion resistance, and can maintain long-term stable performance in various harsh working conditions. Therefore, the fiber rope can be used in the marine environment for a long time, and has great use value. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the application;

[0025] In the figure: 1, high molecular polyethylene inner core; 2, polytetrafluoroethylene rope core; 3, polytetrafluoroethylene sheath. DETAILED DESCRIPTION

[0026] Please refer to Figure 1 The application provides a technical solution: a marine type polytetrafluoroethylene composite polymer fiber rope, which comprises a high molecular polyethylene inner core 1, the high molecular polyethylene inner core 1 is woven into 8 strands, 12 strands or more strands, the average molecular weight of the fibers of the high molecular polyethylene inner core 1 is 100,000-500,000, resin fillers are arranged between the high molecular polyethylene inner core 1, a polytetrafluoroethylene rope core 2 and a polytetrafluoroethylene sheath 3, the polytetrafluoroethylene sheath 3 is one or more of a fluorine-containing high molecular compound, there is a resin adhesive layer between the high molecular polyethylene inner core 1 and the polytetrafluoroethylene sheath 3, and the resin adhesive layer contains one or more of polyester resin, polyurethane resin, antibacterial agent, toughening agent and solvent.

[0027] A preparation method of a marine type polytetrafluoroethylene composite polymer fiber rope, comprising the following preparation steps:

[0028] Step one: preparation

[0029] Before making any rope, first prepare the high molecular polyethylene fiber and polytetrafluoroethylene fiber. Determine the specifications and colors of the high molecular fiber, select according to the needs, and cut the high molecular fiber to the appropriate length, generally 2 to 3 times longer than the required rope length.

[0030] Step two: inner core weaving process

[0031] High molecular fiber according to 4, 8, 12, etc. by braiding machine can also be hand woven into the inner core rope, this process requires a lot of pulling force, to ensure that the rope is tight, not easy to loose. When we need to pay attention to the process of braiding into a rope, choose the appropriate weaving method and line thickness, to ensure that the rope is not easy to break when bearing heavy or severe scratching.

[0032] Step three: outer core braiding process

[0033] After the completion of the inner core braiding process, we need to polytetrafluoroethylene fiber according to 9, 18, 27, etc. by braiding machine can also be hand woven into the outer core rope, this process requires a lot of pulling force, to ensure that the rope is tight, not easy to loose. When we need to pay attention to the process of braiding into a rope, choose the appropriate weaving method and line thickness, to ensure that the rope is not easy to break when bearing heavy or severe scratching.

[0034] Step four: braided sheath process

[0035] After the completion of the rope core braiding process, we need to polytetrafluoroethylene fiber according to the braided sheath way by braiding machine can also be hand woven into the polytetrafluoroethylene sheath, this process requires a lot of pulling force, to ensure that the rope is tight, not easy to loose. In the high molecular polyethylene fiber core and polytetrafluoroethylene fiber outer core to apply enough force to immerse in the container containing the rope with adhesive, and then cover the outer braided sheath.

[0036] Step five: cutting and packaging

[0037] After the completion of the rope production, need to be cut, using hand or electric shear, so that the length of the actual demand. After all, the product is packaged

[0038] The above, only for the preferred embodiment of the present invention, but the scope of protection of the present invention is not limited to this, any skilled in the art of the technical personnel in the technical range of the present invention is disclosed, according to the technical scheme of the present invention and the invention concept of equivalent replacement or change, should be covered in the scope of protection of the present invention.

Claims

1. A marine-type polytetrafluoroethylene composite polymer fiber rope, characterized in that: It includes a high molecular weight polyethylene inner core (1), a polytetrafluoroethylene rope core (2), and a polytetrafluoroethylene sheath (3). The high molecular weight polyethylene core (1) is woven from 4, 8 or 12 strands; The average molecular weight of the fibers in the high molecular weight polyethylene core (1) is 100,000 to 500,000. A resin filler is provided between the inner cores (1) of the high molecular weight polyethylene; There is a resin adhesive layer between the high molecular weight polyethylene inner core (1) and the polytetrafluoroethylene sheath (3); the resin adhesive layer contains one or more of polyester resin, polyurethane resin, antibacterial agent, toughening agent, and solvent.

2. A method for preparing a marine-type polytetrafluoroethylene composite polymer fiber rope as described in claim 1, characterized in that: The preparation steps include the following: Step 1: Preparing materials Prepare high molecular weight polyethylene fiber and polytetrafluoroethylene fiber, and cut the fiber into 2 to 3 times the required rope length; Step Two: Inner Core Weaving Process Polyethylene fibers are braided into inner core ropes using a braiding machine or by hand in 4, 8, or 12 strands. This process requires a lot of tension to ensure that the rope is tight and not easy to loosen. When braiding the rope, choose an appropriate weaving method and rope thickness to ensure that the rope is not easy to break when bearing heavy objects or violent scratching. Step 3: Rope Core Weaving Process After the inner core weaving process is completed, the polytetrafluoroethylene fibers are woven into the rope core by a braiding machine or by hand in 9, 18 or 27 strands. A lot of tension is required in this process to ensure that the rope is tight and not easy to loosen. When weaving the rope, choose the appropriate weaving method and rope thickness to ensure that the rope is not easy to break when bearing heavy objects or violent scratching. Step 4: Weaving the Sheath After the rope core weaving process is completed, the polytetrafluoroethylene fiber is woven into a polytetrafluoroethylene sheath by a weaving machine or by hand according to the weaving sheath method. This process requires a lot of tension to ensure that the rope is tight and not easy to loosen. Sufficient tension is applied to the inner core of the high molecular weight polyethylene fiber and the core of the polytetrafluoroethylene fiber rope and immersed in a container containing rope adhesive, and then the outer layer of woven sheath is put on. Step 5: Cutting and Packaging After the rope is made, use a hand or electric cutter to cut it to the required length. Once everything is finished, package the product.

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