Polyester high-strength netting twine with self-luminous function and preparation method thereof

Abstract

The invention discloses a polyester high-strength netting twine with a self-luminous function and a preparation method thereof. The preparation method comprises the following steps of compounding an alkaline earth aluminate luminous material and an alkaline earth silicate luminous material to obtain mixed luminous powder; dynamically and statically mixing a self-luminous polyester master batch melt containing high-concentration luminous powder with an ordinary polyester melt to obtain a mixed melt containing low-concentration luminous powder; spinning self-luminous polyester FDY filaments which have large amorphous regions and low crystallinity and are more suitable for multi-stage drawing by adjusting and controlling spinning parameters; and then, performing low-speed multi-stage drawingtreatment on the self-luminous polyester FDY filaments . The polyester high-strength netting twine with the self-luminous function prepared by the preparation method provided by the invention has theadvantages that the fracture intensity is greater than 6.5 cN / dtex, the boiling water shrinkage rate is lower than 4 percent, and after sufficient light illumination, the polyester high-strength netting twine can continuously emit light in the dark for 12 h or longer.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polyester high-strength fishing net yarn with self-luminous function and a preparation method thereof. Background technique [0002] In pelagic fisheries, fishing nets are usually used for one-time use. After fishing on the boat, the fishing nets are cut open, the fish in the nets are sorted and put into fish bins, and new fishing nets are replaced when the nets are lowered again. Most deep-sea fish have phototaxis. If the fishing net can emit weak light under the water surface, especially at night, it can attract more fish, greatly increase the fishing output of each net, and improve economic benefits. [0003] After absorbing all kinds of visible light for 10-20 minutes, the high-efficiency light-storing luminescent powder can continue to emit light in the dark for more than 12 hours, and has excellent low-light display and indication functions. In the prior art, t...

AI Technical Summary

Problems solved by technology

In the prior art, the luminescent powder is directly added as an additive to the polyester and then spun into filaments. The problem of poor dispersion of the luminescent powder in polyester is common, which leads to poor light storage effect and low strength of the fiber.

In order to obtain fibers with higher strength, high-strength stretching in the later stage is required, but it is difficult to directly obtain high-strength stretching of polyester fibers with luminescent powder, so it is necessary to obtain high-strength polyester filaments by using multi-stage stretching, but Since the product specification of high-strength polyester filament is usually greater than 550dtex, the production cost is higher if it is smaller than this specification, and it is usually drawn at high speed, the total number of drafting is only two levels, and the strength of self-luminous polyester high-strength filament is difficult to guarantee

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