Polyamide color master batch resistant to high-temperature carbon black coloring and preparation method of polyamide color master batch

Abstract

The invention discloses a high-temperature-resistant carbon black colored polyamide color master batch and a preparation method thereof, and relates to the field of polyamide color master batches, carbon black, a silane coupling agent, a dispersing agent, a compatilizer and an antioxidant are mixed, then polyamide resin is added, the mixture is transferred into an internal mixer for mixing and extrusion granulation, and the high-temperature-resistant carbon black colored polyamide color master batch is obtained. The problems that effective dispersion of particles is difficult to achieve, dyeing uniformity is poor, and compatibility between a coloring agent and polyamide is poor in an existing polyamide color master batch preparation process are solved. The dispersing agent can generate relatively strong adsorption and steric hindrance effects, so that the carbon black coloring agent is uniformly dispersed in polyamide, and the compatilizer plays a role of a bridge, so that the compatibility of the polyamide color master batch is improved, and the purpose of improving the stability and the coloring effect of the color master batch in polyamide is achieved. And the added antioxidant also enables polyamide to have better thermal stability.

Description

technical field [0001] The invention relates to the field of polyamide color masterbatch, in particular to a polyamide color masterbatch colored with high temperature resistant carbon black and a preparation method thereof. Background technique [0002] Polyamide material has very superior mechanical properties, can withstand repeated shock and vibration, the operating temperature range is -40 ℃ ~ 100 ℃, oil, hydrocarbons, lipids and other organic solvents, not acid, easy to oxidize, easy to color and non-toxic, the current industry The most widely used PA6, PA66, PAI010, of which PA6, PA66 are widely used because of their price advantage and good performance and processability. The modification research of polyamide fiber is still in the stage of development and trial, but in advocating green environmental protection. Today, the functional modification of polyamide has broad development prospects. [0003] Masterbatch is a kind of special colorant for polymer materials. It...

AI Technical Summary

Problems solved by technology

[0007] (1) Mix carbon black, silane coupling agent, dispersant, compatibilizer and antioxidant, then add polyamide resin, transfer to internal mixer The polyamide masterbatch colored by high temperature resistant carbon black is obtained by extruding and granulating through a twin-screw extruder, which solves the problem that the existing polyamide masterbatch preparation process is difficult to achieve effective dispersion of particles and uniform dyeing poor compatibility, and there is a problem of poor compatibility between the colorant and the polyamide resin;

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