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Preparation method of copper-plated polyethylene monofilament for fisheries

A technology of polyethylene and high-density polyethylene, which is applied in textiles and papermaking, fiber treatment, fiber types, etc., can solve the problems of cage net clothing affecting cage culture, etc., and achieve low cost, simple production process, and antifouling performance Good results

Active Publication Date: 2013-06-12
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

[0003] The present invention needs to solve the problem that the fish nets are damaged due to the attachment of various marine organisms and affect the culture of the nets. The present invention proposes a method for preparing copper-plated polyethylene monofilaments for fishery. Realize the purpose of anti-biological adhesion of polyethylene cage net clothing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment （1）

[0008] The high-density polyethylene slices are vacuum-dried, melt-spun and high-power heat-drawn to obtain polyethylene monofilaments. The spinning process is as follows: the spinning temperature is 260° C., and the spinning speed is 10 m / min. Drawing conditions: drawing 8 times, drawing temperature is 100°C. Then the drawn wire is placed in a vacuum chamber, and the copper plating process is evacuated to 1.3×10 -2 Pa, copper is heated to 1200°C to melt and evaporate, and the thickness of copper plating on polyethylene monofilament is adjusted by controlling the evaporation time of copper. A bioadhesion-resistant polyethylene monofilament with a diameter of 0.19mm, a linear density of 40tex, a breaking strength of 58cN / tex, a breaking elongation of 23%, and a monofilament nodule strength of 40cN / tex was obtained.

Embodiment （2）

[0010] Polyethylene monofilaments are obtained by mixing high-density polyethylene and ultra-high molecular weight polyethylene at a mass ratio of 90:10, melt spinning, and high-power thermal drawing. The spinning process is as follows: the spinning temperature is 300° C., and the spinning speed is 20 m / min. Drawing conditions: drawing 9 times, drawing temperature is 100°C. Then the drawn wire is placed in a vacuum chamber, and the copper plating process is evacuated to 1.3×10 -3 Pa, copper is heated to 1600°C to melt and evaporate, and the thickness of copper plating on polyethylene monofilament is adjusted by controlling the evaporation time of copper. An anti-biological adhesion polyethylene monofilament with a diameter of 0.20mm, a linear density of 38tex, a breaking strength of 68cN / tex, a breaking elongation of 21%, and a monofilament nodule strength of 43cN / tex was obtained.

Embodiment （3）

[0012] Polyethylene monofilaments are prepared by mixing high-density polyethylene and ultra-high molecular weight polyethylene at a mass ratio of 80:20, melt spinning, and high-power thermal drawing. The spinning process is as follows: the spinning temperature is 320° C., and the spinning speed is 30 m / min. Drawing conditions: 10 times of drawing, and drawing temperature of 100°C. Then the drawn wire is placed in a vacuum chamber, and the copper plating process is evacuated to 1.3×10 -3 Pa, copper is heated to 1500°C to melt and evaporate, and the thickness of copper plating on polyethylene monofilament is adjusted by controlling the evaporation time of copper. A bioadhesion-resistant polyethylene monofilament with a diameter of 0.19mm, a linear density of 35tex, a breaking strength of 78cN / tex, a breaking elongation of 17%, and a monofilament nodule strength of 44cN / tex was obtained.

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Abstract

The invention discloses a preparation method of a copper-plated polyethylene monofilament for fisheries and relates to a preparation method of a polyethylene monofilament capable of preventing the adhesion of organisms. According to the technical scheme, the preparation method disclosed by the invention comprises the following three process steps of: (1) carrying out melt spinning on a high-density polyethylene slice to prepare a primary monofilament; (2) carrying out high-power hot drafting on the primary monofilament to prepare a drawn filament; and (3) carrying out vacuum copper plating surface treatment on the drafted filament. The preparation method is characterized in that in the step (1), the average molecular weight of the high-density polyethylene is 120-150 thousand dalton, the spinning temperature of the polyethylene monofilament is 260-320 DEG C and the spinning speed is 10-30m / min; in the step (2), the high-power hot drafting multiple of the primary monofilament is 8-12 and the drafting temperature is 100 DEG C; and in the step (3), the surface copper plating process of the drawn filament is that the vacuum degree is (1.3*10<-2>)-(1.3*10<-3>) Pa and the temperature of the heat source is 1200-1600 DEG C.

Description

technical field [0001] The invention relates to a preparation method of polyethylene monofilament for preventing biological adhesion. Background technique [0002] In the current aquatic industry, production tools such as various cage net clothes and net gear used for cage culture and fishing are made of net clothes materials. Cage nets are soaked in seawater during long-term use, causing various algae and other organisms in the ocean to attach to the cage nets in large quantities. There is less water exchange inside and outside the cages, resulting in a decrease in dissolved oxygen inside the cages, deterioration of the water environment, and a sharp increase in the probability of disease and death of fish and other cultured organisms. At present, coating various antifouling paints on the net clothing to hinder biological adhesion is the most common method at present, but this method is all operated manually, with high labor intensity, low efficiency, cumbersome procedures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M101/20
Inventor 闵明华王鲁民马海有石建高黄洪亮
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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