Manufacturing method of optical cable strengthening piece

A production method and reinforcement technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of poor softness of plastic reinforcements, high fiber breakage rate, increased cost, etc., and achieve low cost, avoid fiber breakage, and fast production speed Effect

Inactive Publication Date: 2013-11-27
SHANGHAI HUIBO NEW MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the glass fiber or para-aramid fiber is impregnated and cured with vinyl resin, the fibers are closely entangled, which can effectively exert the overall mechanical properties of the fiber, but the plastic reinforcement prepared by this method is not flexible and is easy to break. The finished optical cable should also be paid great attention to during engineering installation, which improves the requirements for optical cable installation.
In addition, the vinyl resin needs to be cured during the production process, which determines that the speed of this pultrusion molding process will not be too high. Currently, it is generally 5-10m / min. It is very difficult to improve productivity by increasing the pultrusion speed. Large; through porous position pultrusion, it is a common method to increase production at present, but this method leads to high fiber breakage rate, which increases the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The reinforcing fiber is Kevlar49-1580dtex para-aramid fiber produced by DuPont.

[0049] The above-mentioned para-aramid fiber enters the coupling agent dipping tank at a speed of 200m / min through the yarn unwinding machine (tension control is 0.1cn / dtex). The coupling agent uses vinyltrimethoxysilane, and then enters the treatment furnace Preheat and dry at 180°C, and then enter the plastic machine to coat EAA thermoplastics. The plastic machine adopts a single-screw extruder with a screw diameter of 30mm and an aspect ratio of 20. The fiber bundles coated with EAA immediately enter the cooling tank The water in the cooling tank is recycled, and the water temperature is controlled below 50°C. The aramid reinforcements coming out of the water are dried with nozzles, and compressed air is used in the nozzles. The dried para-aramid reinforcements are passed through the After the stretching machine, the finished product is rolled on the winding machine. The product is te...

Embodiment 2

[0051] The reinforcing fiber is Kevlar49-1580dtex para-aramid fiber produced by DuPont.

[0052] The above-mentioned para-aramid fiber enters the coupling agent dipping tank at a speed of 350m / min through the yarn unwinding machine (tension control is 0.2cn / dtex). The coupling agent is vinyltrimethoxysilane, and then enters the treatment furnace Preheat and dry at 190°C, and then enter the plastic machine to coat EAA thermoplastics. The plastic machine adopts a single-screw extruder with a screw diameter of 30mm and an aspect ratio of 20. The fiber bundles coated with EAA immediately enter the cooling tank The water in the cooling tank is recycled, and the water temperature is controlled below 40°C. The aramid reinforcements coming out of the water are dried with nozzles, and compressed air is used in the nozzles. The dried para-aramid reinforcements are passed through the After the stretching machine, the finished product is rolled on the winding machine. The product is test...

Embodiment 3

[0054] The reinforcing fiber is Kevlar49-1580dtex para-aramid fiber produced by DuPont.

[0055] The above-mentioned para-aramid fiber enters the coupling agent dipping tank at a speed of 450m / min through the yarn unwinding machine (tension control is 0.3cn / dtex). The coupling agent is vinyltrimethoxysilane, and then enters the treatment furnace Preheat and dry at 200°C, and then enter the plastic machine to coat EAA thermoplastics. The plastic machine adopts a single-screw extruder with a screw diameter of 30mm and an aspect ratio of 20. The fiber bundles coated with EAA immediately enter the cooling tank The water in the cooling tank is recycled, and the water temperature is controlled below 30°C. The aramid reinforcements coming out of the water are dried with nozzles, and compressed air is used in the nozzles. The dried para-aramid reinforcements are passed through the After the stretching machine, the finished product is rolled on the winding machine. The product is test...

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Abstract

The invention relates to a manufacturing method of an optical cable strengthening piece, and belongs to the technical field of composite material processing. The manufacturing method is characterized in that a strengthening fiber is a glass fiber or a para-position aramid fiber, and a resin is a thermoplastic resin. The manufacturing method comprises the steps of putting yarns, soaking by a coupling agent, preheating and drying the fiber, coating the resin, cooling, drying and rolling the resin and the like. The optical cable strengthening piece prepared by the invention has the advantages that the flexibility is greatly improved, the production speed is rapid, the benefits are high, the cost is low, a fiber disconnecting condition is avoided, and the manufacturing method of the optical cable strengthening piece can be used on a large scale.

Description

technical field [0001] It belongs to the field of composite material processing and involves polymer material processing technology. More precisely, it relates to a production method of an optical fiber cable reinforcement. Background technique [0002] With the rapid development of the information and communication industry, as the carrier of data transmission, the development speed of optical cable is also very fast. Under the concept of optical fiber access and fiber-to-the-home, as the most commonly used optical cable for this type of data transmission, FTTH optical cable is used in terminal access. has become an indispensable choice. [0003] FTTH optical cable reinforcements are currently mainly reinforced with glass fiber or para-aramid fiber. The preparation method of this reinforcement is that the glass fiber or para-aramid fiber is first impregnated in vinyl resin, and then solidified into a fiber-reinforced circle through a mold. Shape the plastic rod, and then ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/40G02B6/44
Inventor 刘岳新罗丹韩璐
Owner SHANGHAI HUIBO NEW MATERIAL SCI & TECH
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