Method for preparing fishing poly-blended and modified polypropylene monofilaments

Abstract

The invention discloses a method for preparing fishing poly-blended and modified polypropylene monofilaments, relates to a method for preparing fishing polypropylene monofilaments in the technical field of aquatic products and aims to provide a method for preparing the fishing poly-blended and modified polypropylene monofilaments. A stirring machine, a double-screw extruder, a single-screw extruder, a twice-drafting electrical heating 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 HEPE resin, a spinning-grade dry PA1010 resin, a dry PP-G-MAH resin, dry zinc stearate and a spinning turpentine aid; extruding the mixture twice by using the double-screw extruder and pelletizing to obtain poly-blended particles; fusing and extruding the poly-blended particles by using a charging barrel of the single-screw extruder, pre-drafting extruded primary filaments, thermally drafting the pre-drafted filaments twice and winding monofilaments by using the filament winding machine of a torque motor; and separating the monofilaments by using the filament separating machine to obtain the fishing poly-blended and modified PP monofilaments.

Description

technical field [0001] The invention relates to a method for preparing fishing polypropylene monofilament in the technical field of aquatic products. Background technique [0002] Polypropylene (PP) monofilament, like polyethylene (PE) monofilament, is an important fishing fiber material in the field of agricultural science and aquatic technology. People have special requirements for its gloss, elongation, wear resistance and breaking strength. Fishing polypropylene monofilament with good comprehensive performance can be prepared only by spinning technology, but the common polypropylene monofilament for fishing in the existing aquatic technology field uses PP resin as raw material, and the spinning heating medium is water, which leads to its small breaking strength and fracture. The strength is sometimes even lower than the standard qualified product index of SC 5005 "Polyethylene Monofilament for Fishing", and the wear resistance is poor, which further makes the ropes prepa...

AI Technical Summary

Problems solved by technology

[0002] Polypropylene (PP) monofilament, like polyethylene (PE) monofilament, is an important fishing fiber material in the field of agricultural science and aquatic technology. People have special requirements for its gloss, elongation, wear resistance and breaking strength. Fishing polypropylene monofilament with good comprehensive performance can be prepared only by spinning technology, but the common polypropylene monofilament for fishing in the existing aquatic technology field uses PP resin as raw material, and the spinning heating medium is water, which leads to its small breaking strength and fracture. The strength is sometimes even lower than the standard qualified product index of SC 5005 "Polyethylene Monofilament for Fishing", and the wear resistance is poor, which further makes the ropes prepared with them easy to wear or break in fishery. Therefore, the existing ordinary polypropylene monofilament Fishing adaptability of silk is poor, it is difficult to meet the needs of modern fishery

In order to meet the needs of fishery modernization, the aquatic technology field urgently needs polypropylene monofilament with good comprehensive performance, but there is no production technology for producing modified PP monofilament with multi-component blended resin as raw material in the existing aquatic technology field in my country. The problem of the preparation method of multi-component blending modified PP monofilament has become a technical problem that needs to be solved in the field of aquatic products technology