Method for processing wearable blended and modified polypropylene monofilaments for manufacturing fishing rope

Abstract

The invention discloses a method for processing wearable blended and modified polypropylene monofilaments for manufacturing a fishing rope, relates to a method for processing polypropylene monofilaments for a fishing rope and aims to provides a method for processing the wearable blended and modified polypropylene monofilaments for manufacturing the fishing rope. A stirring machine, screw extruders, a drafting machine, a filament winding machine and a filament separating machine are adopted. The method is characterized by comprising the following steps of: mixing a sieved spinning-grade dry T30S type PP resin, a spinning-grade dry PA1010 resin, dry zinc stearate, white oil or a turpentine aid; uniformly mixing the materials, extruding the mixture twice by using a double-screw extruder and pelletizing to obtain poly-blended particles which contain the PP resin, the PA1010 resin and the zinc stearate; fusing and extruding the poly-blended particles by using a single-screw extruder, cooling and pre-drafting the fused and extruded primary filaments, thermally drafting the pre-drafted filaments twice, rapidly cooling the thermally-drafted filaments with high-pressure air current after the two times of thermal drafting and winding monofilaments by using the filament winding machine; and separating the monofilaments by using the filament separating machine to obtain the fishing wearable blended and modified PP monofilaments.

Description

technical field [0001] The invention relates to a processing method for polypropylene monofilaments used in fishing ropes in the technical field of aquatic products. Background technique [0002] Fishing ropes are widely used in fishing gear, net cages and fishing boats in the field of agricultural science and aquatic technology. The wear resistance and strength performance of the matrix fiber material used for making them are directly related to the safety of fishing gear, net cages and fishing boats. The base fiber used for fishing rope production is classified according to function, generally divided into ordinary fiber, wear-resistant fiber, aging-resistant fiber and high-strength fiber; classified according to composition, generally divided into polymer blend fiber, single-component fiber, multi-component fiber. The existing polypropylene fibers used for fishing polypropylene ropes are made of PP resin by hot water stretching. They have defects such as low nodule stren...

AI Technical Summary

Problems solved by technology

The existing polypropylene fibers used for fishing polypropylene ropes are made of PP resin by hot water stretching. They have defects such as low nodule strength, low elongation at break, and poor wear resistance, which lead to the use of them. Polypropylene ropes are prone to fishing accidents in fishing and fishery engineering