Method for preparing regeneration lines for net body

The technology of body net and net wire is applied in the field of preparation of recycled wire for body net, which can solve the problems of potential safety hazards, poor strength of polyethylene monofilament, poor strength of body net wire and poor fishing performance, etc., so as to improve safety, The effect of improved durability and safety, and significant advantages in breaking strength

Inactive Publication Date: 2016-05-04
江苏昇和新材料科技股份有限公司
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Problems solved by technology

In the prior art, people use single HDPE regenerated pellets as raw materials to make body net threads through spinning and thread making process, which makes the strength of polyethylene monofilaments poor, which further leads to poor strength and fishing performance of body net threads. Also poor, this brings serious potential safety hazard to trawl fishery production, so, the body net with line in the prior art field is difficult to adapt to the development needs of modern trawl fishery, people urgently need a kind of body net with regenerated net line processing method

Method used

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  • Method for preparing regeneration lines for net body
  • Method for preparing regeneration lines for net body

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preparation example Construction

[0032] A preparation method for a regenerated thread for a body net, comprising the following steps:

[0033] (1) prepare materials according to the raw material components described in table 1 and table 2;

[0034] (2) Preparation of anti-aging masterbatch: mix HDPE regenerated pellets and pigments, and carry out twin-screw extrusion granulation at 220-250°C. The aspect ratio of the twin-screw extruder is 42, and the speed is 50-80r / min, the obtained masterbatch is dried in an oven at 70-100°C for 12-24h;

[0035] (3) Coloring: Stir and mix the MMWPE pellets, turpentine and the anti-aging masterbatch obtained in step (2) for 1600s to 5400s;

[0036] (4) Extrusion, cooling and pre-drawing: Put the colored MMWPE pellets obtained in step (3) into a single-screw extruder for melt extrusion. The temperature control ranges of Zone III and Zone IV are 318.0°C-321.0°C, 334.8°C-336°C, 349.5°C-351.5°C, 346.8°C-347.9°C respectively. The first drafting roller pre-draws, the cooling wat...

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Abstract

The invention relates to the technical field of net bodies, in particular to a method for preparing regeneration lines for a net body. The method includes the following steps of material preparing; anti-aging master-batch preparing; coloring and even mixing; extruding, cooling and pre-drafting; two times of hot drafting; silk collecting and silk dividing; stranding. The diameter of the prepared regeneration lines ranges from 25.8 mm to 26.2 mm, and the stranding length ranges from 3.10 mm to 3.20 mm. By means of the method, cost can be reduced, the force performance, the durability and the ageing resistance of the lines for the net body can be improved, the strength and the safety of the net body can be improved, and energy saving and environment protection can be achieved.

Description

technical field [0001] The invention relates to the technical field of body nets, in particular to a preparation method of a regenerated thread for body nets. Background technique [0002] Trawl net is a kind of mobile filtering fishing gear, relying on the power of fishing boats to tow bag-shaped fishing gear, and drag fish and shrimp into the net in the waters it passes through, so as to achieve the purpose of fishing and processing. In modern fishery, trawling is one of the main fishing methods in our country, and the output is close to 40% of the marine output. The body net, also known as the net body, is the main part of the net body. Its function is to introduce the fish introduced into the net mouth into the net bag. Trawl safety and energy saving and emission reduction effect. In the existing trawling technical field, people adopt common polyethylene (PE) lines to make body net wires. With the large-scale development of trawl nets in the direction of ocean, cross ...

Claims

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Application Information

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IPC IPC(8): D02G3/02D02G3/28D02G3/44
CPCD02G3/02D02G3/28D02G3/44D10B2321/021D10B2507/02
Inventor 黄南婷
Owner 江苏昇和新材料科技股份有限公司
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