Preparation method of composite monofilament for netting gear manufacture

Abstract

A preparation method of a composite monofilament for netting gear manufacture. The invention employs a mixer, a double-screw extruder, a single-screw extruder, a secondary drafting electric heating draw machine, a winding machine using a torque motor, a filament splitting machine, a spinning grade drying HDPE resin, nanometer drying Al2O3 and a turpentine assistant for spinning. The preparation method is characterized by comprising the steps of: mixing the spinning grade drying HDPE resin, the nanometer drying Al2O3 and the turpentine assistant for spinning; subjecting the mixture to two times of extrusion granulation by the twin-screw extruder to obtain blend pellets; subjecting the blend pellets to melt extrusion by the single-screw extruder; subjecting the primary composite monofilament obtained from melt extrusion to cooling and a preliminary drafting; subjecting the composite monofilament from preliminary drafting to two times of hot drafting, then high-pressure airflow oil removal and fast cooling; winding the composite monofilament by the winding machine using torque motor; and splitting the composite monofilament by the filament splitting machine into a matrix composite monofilament for low carbon netting gear manufacture.

Description

Technical field [0001] The invention relates to a method for preparing a matrix composite monofilament for making net fishing gear or net gear for aquaculture cages in the field of aquaculture technology. Background technique [0002] In the field of agricultural science and aquaculture technology, net fishing gear or aquaculture cage nets play an important role in obtaining the aquatic protein needed for human survival, but the carbon emission during the production of net fishing gear or aquaculture cage net gear also affects the surrounding area. The environment has caused a certain impact. The durability, breaking strength and adaptability of the matrix fiber materials used in the production of nets have a very important impact on the carbon emissions and raw material consumption in the production of nets, with good durability, high strength and good adaptability. Nets made of matrix fiber materials can achieve low carbon emissions from the production of nets in fishery produ...

AI Technical Summary

Problems solved by technology

In the field of aquatic technology, the existing common PE monofilaments for netting use high-density polyethylene (HDPE) resin as raw material, the spinning heating medium is water, and the traditional melt spinning process is adopted, resulting in poor durability of ordinary PE monofilaments. , low breaking strength and poor adaptability will cause ordinary PE monofilament downstream net products to be easily damaged in the production of net fishing gear or aquaculture cages, causing heavy losses to net gear users, and it is difficult to meet modern aquatic technology. The need to develop low-carbon gear fisheries in the field

In order to adapt to the development needs of low-carbon net gear fishery, the existing aquatic technology field is in urgent need of low-carbon type nets with good durability, high breaking strength and good adaptability. There is no preparation method of matrix composite monofilament for low-carbon netting, therefore, the preparation method of matrix composite monofilament for low-carbon netting has become a technical problem that needs to be solved urgently in the existing aquatic technology field