High-temperature-resistant color master batch and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant color master batch and a preparation method thereof. The high-temperature-resistant color master batch comprises the following raw materials in parts by weight: 60-70 parts of a colored carrier, 1-3 parts of stearate, 1-3 parts of nano montmorillonite, 70-80 parts of palm oil, 5-7 parts of a stabilizer and 60-70 parts of an ethylene-octene copolymer. The high-temperature-resistant color master batch is prepared by the following steps: step 1, uniformly mixing a colored carrier, stearate, nano montmorillonite, palm oil, a stabilizer and an ethylene-octene copolymer in proportion, and conducting grinding for 30-40 minutes to obtain a mixture; and step 2, conveying the mixture into a screw extruder, controlling the temperature in the screwextruder to be 250-300 DEG C and the rotating speed to be 350-370 r / min, and conducting extrusion, granulation and sieving, so as to finally obtain the color master batch.

Description

technical field [0001] The invention belongs to the technical field of color masterbatches, and in particular relates to a high-temperature-resistant color masterbatch and a preparation method thereof. Background technique [0002] The full name of color masterbatch is color masterbatch, also called color seed, which is a new type of special colorant for polymer materials, also known as pigment preparation. Color masterbatches are mainly used in plastics. The color masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate made by uniformly loading super-normal pigments in the resin. It can be called a pigment concentrate, so its coloring power is higher than that of the pigment itself. When processing, a small amount of color masterbatch and uncolored resin is mixed to achieve the colored resin or product with the designed pigment concentration. [0003] Color masterbatch has a wide range of uses, especially in plastics, but...

AI Technical Summary

Problems solved by technology

For example, in the process of using the color masterbatch, the stability and processing performance of the color masterbatch are required to be high. Therefore, various additives need to be added during the preparation of the color masterbatch, and the additives added will affect the dispersion of the color masterbatch. The performance and effect will be adversely affected, and it is easy to cause the loss or discoloration of the pigment in the masterbatch at high temperature, and the surface of the subsequent product will be discolored or unevenly dispersed due to the masterbatch, resulting in white spots on the product, seriously affecting The appearance quality of the product; and the existing masterbatch preparation methods and materials have their own shortcomings, for example, there are problems such as single raw materials, rough manufacturing methods, and poor product performance.

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