Preparation method of fiber for euphausia superba net rope

Abstract

The invention discloses a preparation method of fiber for a euphausia superba net rope. According to the preparation method, HDPE (high-density polyethylene) rubber, auxiliaries, metallocene LLDPE (linear low density polyethylene) resin, a stirrer, a single-screw extruder, a two-time drawing electrical heating drawing machine, a fiber winding device and a fiber dividing device. The preparation method is characterized in that the HDPE rubber, the auxiliaries and the metallocene LLDPE resin are mixed and stirred uniformly by the stirrer, a blend is subjected to melt extrusion by a charging barrel of the single-screw extruder, as-spun fiber obtained through melt extrusion is subjected to cooling and preliminary drawing, the fiber after the preliminary drawing is subjected to hot drawing twice, the total drawing multiple is controlled in 12.031 times, after that, airflow at the high pressure of 0.56 MPa-0.63MPa is adopted to remove oil, then the fiber is rapidly cooled, fiber bundles are divided into fiber by the fiber dividing device, and the fiber for the euphausia superba net rope is prepared.

Description

technical field [0001] The invention relates to a method for preparing fibers for Antarctic krill nets in the technical field of polar fishery. Background technique [0002] Antarctic krill is a species of krill that lives in the Antarctic waters of the Southern Ocean. It is a shrimp-like invertebrate and lives in flocks, sometimes reaching densities of 10,000 / m2 3 ~30000pcs / m 3 . In the 1970s and 1980s, some countries began to carry out large-scale commercial fishing of Antarctic krill, with the highest annual catch of about 480,000 tons. Antarctic krill fishery is of great significance to safeguarding my country's marine rights and interests, ensuring the supply of human protein, and enriching the types of marine food. Fiber is the main material for the preparation of Antarctic krill nets. Compared with ordinary polyethylene monofilament fibers in other technical fields, fibers for Antarctic krill nets need to have specific properties such as high breaking strength and ...

AI Technical Summary

Problems solved by technology

Fiber is the main material for the preparation of Antarctic krill mesh. Compared with ordinary polyethylene monofilament and other fibers in other technical fields, the fiber for Antarctic krill mesh needs to have specific properties such as high breaking strength and good adaptability to temperature changes. , which is directly related to the fracture strength and safety of Antarctic krill reticulum, the success or failure of Antarctic krill fishery, and related to the consumption of reticula in polar Antarctic krill fishery, and related to the energy saving and emission reduction of polar fishery, but the existing Antarctic krill Fibers for krill mesh are generally prepared from a single high-density polyethylene resin (referred to as HDPE resin) by hot water spinning process. Poor, which affects the breaking strength and safety of Antarctic krill reticulum. Antarctic krill reticulum has relatively poor adaptability to fish, and it is difficult to meet the needs of polar Antarctic krill production. Therefore, the preparation of Antarctic krill reticulum fiber The method has become a long-standing technical problem in the field of polar fishery technology