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Preparation method of composite monofilament for netting gear manufacture

A composite monofilament, functional technology, applied in the manufacture of rayon, single-component polyolefin rayon, melt spinning, etc., can solve the problems of poor durability of ordinary PE monofilament, user loss of nets, and low breaking strength. , to achieve the advantages of physical and mechanical properties, normal silk output, and good durability.

Active Publication Date: 2014-12-10
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

In the field of aquatic technology, the existing common PE monofilaments for netting use high-density polyethylene (HDPE) resin as raw material, the spinning heating medium is water, and the traditional melt spinning process is adopted, resulting in poor durability of ordinary PE monofilaments. , low breaking strength and poor adaptability will cause ordinary PE monofilament downstream net products to be easily damaged in the production of net fishing gear or aquaculture cages, causing heavy losses to net gear users, and it is difficult to meet modern aquatic technology. The need to develop low-carbon gear fisheries in the field
In order to adapt to the development needs of low-carbon net gear fishery, the existing aquatic technology field is in urgent need of low-carbon type nets with good durability, high breaking strength and good adaptability. There is no preparation method of matrix composite monofilament for low-carbon netting, therefore, the preparation method of matrix composite monofilament for low-carbon netting has become a technical problem that needs to be solved urgently in the existing aquatic technology field

Method used

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Embodiment Construction

[0006] The invention adopts a mixer, a twin-screw extruder, a single-screw extruder, a double-drawing electric heating drafting machine, a wire collecting machine, a spinning machine, a spinning-grade dry high-density polyethylene (HDPE) resin, nano-scale Aluminum oxide (Al 2 o 3 ) and turpentine additives, the invention will dry the HDPE resin after sieving treatment (melt index should meet 0.6g / 10min-1.5g / 10min, if the HDPE resin is damp, it should be dried, sun-dried or air-dried, etc. drying treatment), nanoscale dry Al 2 o 3 [marketed nanoscale dry Al 2 o 3 Material (as the VK-L30 type nano-Al of market sale 2 o 3 ), nanoscale dry Al with an average particle size not greater than 60nm 2 o 3 , the amount added is 1.4‰-5.0‰ of the weight of spinning-grade dry HDPE resin; if Al 2 o 3 If the material is damp, it should be dried, and the nano-scale drying Al 2 o 3 The content is not less than 99.99%]; the spinning-grade dry HDPE resin, nano-scale dry Al 2 o 3 The...

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Abstract

A preparation method of a composite monofilament for netting gear manufacture. The invention employs a mixer, a double-screw extruder, a single-screw extruder, a secondary drafting electric heating draw machine, a winding machine using a torque motor, a filament splitting machine, a spinning grade drying HDPE resin, nanometer drying Al2O3 and a turpentine assistant for spinning. The preparation method is characterized by comprising the steps of: mixing the spinning grade drying HDPE resin, the nanometer drying Al2O3 and the turpentine assistant for spinning; subjecting the mixture to two times of extrusion granulation by the twin-screw extruder to obtain blend pellets; subjecting the blend pellets to melt extrusion by the single-screw extruder; subjecting the primary composite monofilament obtained from melt extrusion to cooling and a preliminary drafting; subjecting the composite monofilament from preliminary drafting to two times of hot drafting, then high-pressure airflow oil removal and fast cooling; winding the composite monofilament by the winding machine using torque motor; and splitting the composite monofilament by the filament splitting machine into a matrix composite monofilament for low carbon netting gear manufacture.

Description

technical field [0001] The invention relates to a method for preparing a matrix composite monofilament for net fishing gear or net gear for aquaculture net cages in the field of aquatic products. Background technique [0002] The net fishing gear or net gear for aquaculture cages in the field of agricultural science and aquatic technology has played an important role in obtaining the aquatic protein needed for human survival, but the carbon emissions in the production of net fishing gear or net gear for aquaculture cages also have a negative impact on the surrounding areas. The environment has had a certain impact. The durability, breaking strength and adaptability of the base fiber material for netting have a very important impact on the carbon emissions and raw material consumption in the production of netting. Good durability, high strength and good adaptability Net gear made of matrix fiber material can realize low-carbon emission in net gear production in fishery produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/46D01F1/10D01D5/08D01D5/088D01D5/14D01D5/16
Inventor 石建高乐国义周浩明王翠华龚剑彬
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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