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Method for making netting twine for euphausiasuperba resource development

An Antarctic krill, technology of production method, applied in melt spinning, artificial filament physical therapy, spinneret assembly, etc., can solve the problem of low breaking strength and nodular strength of polyethylene monofilament, and breaking strength of polyethylene wire Low cost, poor safety and adaptability, etc., to achieve the effect of improving spinnability, improving comprehensive performance and adaptability, and facilitating processing and production

Inactive Publication Date: 2015-09-16
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The monofilaments used in the development and utilization of the existing Antarctic krill resources are mainly ordinary polyethylene monofilaments, and the thread making process is single; and polyethylene monofilaments are used as the basic structural unit of polyethylene network cables. High-density polyethylene (HDPE) raw material drawing production of ethylene, the standard index of breaking strength of polyethylene monofilament is 5.2cN / dtex
The low breaking strength and knot strength of polyethylene monofilaments not only lead to relatively low breaking strength of polyethylene network cables, but also lead to poor safety and adaptability of trawl nets for the development and utilization of Antarctic krill resources. Therefore, the existing Antarctic krill resources development It is difficult to adapt to the rapid development of Antarctic krill fishery by using network cables. People urgently need new network cables for the development of Antarctic krill resources and their production methods, so as to produce new materials for network cables with high breaking strength and good adaptability for the development and utilization of Antarctic krill resources.
In the field of prior art, there is no Antarctica made of medium molecular weight polyethylene resin (referred to as MMWPE resin), polypropylene resin (referred to as PP resin), and ethylene-propylene-diene rubber (abbreviated as EPDM resin) as raw materials and made by special wire drawing and twisting processes. Krill resource development and utilization network cable, therefore, the solution to the problem of Antarctic krill resource development network cable and its production method has become a long-standing unresolved technical problem in this technical field

Method used

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Embodiment Construction

[0006] Taking the Antarctic krill resource development network cable with a diameter of 3.37mm and its production method as an example, the specific implementation mode of the present invention is described: MMWPE resin, PP resin, EPDM resin, auxiliary agent, mixer, wire dividing machine, and wire collecting machine are used , single-screw extruder, double-drawing electric heating drawing machine and twisting machine, characterized by MMWPE resin (distributed by Zibo Meibiao Polymer Fiber Co., Ltd., with a melt index of 3.0g / 10min and a molecular weight of 600,000 to 1,000,000 ; If the MMWPE resin is damp, it should be dried by light, air drying or oven), PP resin (S1004 type PP resin produced by Yangzi Petrochemical, the melt index is 3.0g / 10min~4.0g / 10min, the addition amount is 10.1% to 12.3% of the weight of the MMWPE resin; if the PP resin is damp, it should be dried by light, air drying or oven), EPDM resin (3722P type EPDM resin produced by Dow in the United States, the ...

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Abstract

A method for making netting twine for euphausiasuperba resource development is characterized in that MMWPE resin, PP resin, EPDM resin and white oil or turpentine auxiliaries are mixed and evenly stirred by a stirrer to obtain blended MMWPE / PP / EPDM granules; the blended MMWPE / PP / EPDM granules are melted and extruded by a single screw extruder, melted and extruded spun filaments are cooled by low-temperature water in a cooling water tank and pre-drafted by a first drafting roller, pre-drafted filaments are subjected to hot drafting through a first drafting water bath and a second drafting roller for the first time and subjected to hot drafting through a second drafting water bath and a third drafting roller for the second time, blended and modified monofilament tows are taken up through a filament take-up machine making use of a torque motor, and bobbin-packaged monofilaments are twisted into one Z-twist single yarn, wherein each tow of the bobbin-packaged monofilaments contains ten blended and modified monofilaments; four Z-twist single yarns are primarily twisted into one S-twist strand; finally, three S-twist strands are twisted into the Z-twist netting twine.

Description

technical field [0001] The invention relates to a network cable for Antarctic krill resource development and a manufacturing method thereof. Background technique [0002] Antarctic krill is a type of krill that lives in the waters of Antarctica in the Southern Ocean and is a key species of the Antarctic ecosystem; Antarctic krill are shrimp-like invertebrates that live in colonies. The Antarctic krill fishery promotes the development of Antarctic krill resources and plays an active role in the rational use of Antarctic krill resources for human beings. Polyethylene wire is a trawling gear material currently used in the development and utilization of Antarctic krill resources, and its performance is related to the success or failure of Antarctic krill resources development and utilization. Ordinary polyethylene network cables pose potential safety hazards to Antarctic krill trawls in low-temperature and harsh operating environments. Along with the development of Antarctic k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/02D01D1/00D01D5/08D01D5/088D01D10/00D01D4/02D01F8/06D01F8/10D01F1/10
Inventor 石建高陈雪忠王鲁民黄洪亮冯春雷马海有张孝先张亮
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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