Preparation method of fiber for seawater fish breeding net clothing

Abstract

The invention provides a manufacturing method of fibers of breeding nets of sea fish. The manufacturing method adopts HDPE (high-density polyethylene) resin, an auxiliary agent, metallocene LLDPE (linear low density polyethylene) resin, a stirring machine, a single-screw extrusion machine, a twice-drawing electrical heating drawing machine, a silk collecting machine and a silk dividing machine. The manufacturing method is characterized in that the HDPE resin is sieved; the adding amount of the auxiliary agent is 0.6% of the weight of the HDPE resin; the adding amount of the metallocene LLDPE resin is 10.3% of the weight of the HDPE resin; the materials are stirred by the stirring machine for 19-31 minutes, so that the materials are uniformly stirred, and a mixture of the HDPE resin and the metallocene LLDPE resin is obtained; melt extrusion is performed on the mixture of the HDPE resin and the metallocene LLDPE resin by the single-screw extrusion machine, and primary silk obtained from melt extrusion is cooled and pre-drawn by a cooling water box and a first drawing roller; twice hot drawing is performed on the pre-drawn silk, the drawn silk is degreased by a high-pressure airflow, the degreased silk is rapidly cooled, and fiber bundles are collected and rolled by the silk collecting machine; the fiber bundles are divided into the fibers of the breeding nets of the sea fish by the silk dividing machine.

Description

technical field [0001] The invention relates to a method for manufacturing fibers for breeding nets in the technical field of seawater fish farming. Background technique [0002] Breeding net clothing is an indispensable and important material for seawater fish seine or cage culture, and its performance is directly related to the success or failure of seawater fish culture. Fiber is one of the main materials for the production of aquaculture nets in the field of seawater fish farming technology. It is directly related to the performance of aquaculture nets, the consumption of raw materials for aquaculture nets, and the safety of seawater fish aquaculture facilities. The fiber is processed with a single high-density polyethylene resin as raw material by hot water drawing process. Due to improper control of the drawing process, the nodule strength is relatively low, which will further affect the performance of breeding nets, the consumption of raw materials for breeding nets a...

AI Technical Summary

Problems solved by technology

Fiber is one of the main materials for the production of aquaculture nets in the field of seawater fish farming technology. It is directly related to the performance of aquaculture nets, the consumption of raw materials for aquaculture nets, and the safety of seawater fish aquaculture facilities. The fiber is processed with a single high-density polyethylene resin as a raw material by hot water drawing process. Due to improper control of the drawing process, the nodule strength is relatively low, which will further affect the performance of breeding nets, the consumption of raw materials for breeding nets and seawater. The safety of fish breeding facilities, therefore, in the prior art, ordinary polyethylene monofilaments made of single high-density polyethylene resin as raw material and processed by hot water stretching process have poor performance adaptability, and it is difficult to meet the needs of modern seawater fish farming production