Preparation method of fishery polyamide wear-resistant monofilament

Abstract

The invention discloses a preparation method of a fishery polyamide wear-resistant monofilament. The fishery polyamide wear-resistant monofilament comprises polyamide resin, ultra-high molecular weight polyethylene powder, active nano silicon dioxide and PE (polyethylene) grafting maleic anhydride. The preparation method is characterized by comprising the following steps of: mixing polyamide resin, ultra-high molecular weight polyethylene powder, active nano silicon dioxide and PE grafting maleic anhydride; stirring by a stirrer after mixing, heating by a twin screw and granulating into particles by a granulator, mixing and melting the mixed particles through a plastic extruding machine with a mixing head, extruding through a high pressure metering pump, cooling molten and extruded monofilament to put in a drawing machine for drawing with the drawing temperature of 90-95 DEG C and the drawing time of 5-6.5 times, putting the drawn monofilament in a setting machine for setting, carrying out surface coating treatment on the monofilament through an antistatic oil, and winding the set monofilament on a winding machine, wherein the winding tension of 0.06-6mm monofilament is 50-800cN, and the winding speed is 10-200m / min.

Description

Technical field: [0001] The invention relates to a method for preparing polyamide monofilament. Background technique [0002] The polyamide monofilaments used for ordinary textiles, papermaking equipment leader yarns or press felts use polyamide crosslinking technology to add 0.1wt% to 10wt% of crosslinking and bonding enhancer triallyl isocyanurate ( TAIC), and then irradiate the monofilament with electron beam 0.1-30kGy. This kind of wear-resistant monofilament has poor transparency and softness, which does not meet the requirements of fishing monofilament. [0003] Use 2wt% silane (greater than 4 million molecular weight) and content greater than 1wt% silicon dioxide (less than 10 nanometers) to mix in polyamide resin by weight percentage to improve the technical difficulty and high cost of wear resistance. [0004] The polyamide monofilament with improved stability and wear resistance contains 1wt% to 30wt% maleic anhydride modified polyethylene / polypropylene and 3% ant...

AI Technical Summary

Problems solved by technology

[0008] The polyamide wear-resistant monofilament obtained by the above process of the present invention is tested by a wear-resistant instrument, showing that the wear-resistant polyamide monofilament has a better wear-resistant effect, and the prepared monofilament has improved the wear-resistant performance of the polyamide monofilament to avoid wear resistance The problem that the anti-wear effect is reduced due to the extraction or migration of components in water, also enhances the bending strength of the monofilament, increases the service life of the product, reduces the cost of use, and expands the application range of polyamide monofilament