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Black master batch for AS system plastic and preparation method thereof

A technology of black masterbatch and plastic, applied in the field of color masterbatch of copolymer and its preparation, can solve the problems of blackness and glossiness, difficulty in uniformity of color difference and glossiness, and difficulty in dispersing carbon black, and achieve glossiness. High efficiency, improve equipment efficiency, and reduce the effect of processing equipment requirements

Inactive Publication Date: 2008-12-10
MALION NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the carbon black used is not easy to disperse, the production process consumes a lot of energy, and the blackness and gloss are difficult to be uniform
[0004] CN101121806 discloses a kind of ABS color masterbatch that color stability improves and preparation method thereof is made up of following carrier, toner, dispersant, thermal stabilizer, processing aid, filler, and wherein carrier is acrylonitrile-styrene copolymer (AS ), ethylene-vinyl acetate (EVA), ethylene-acrylic acid, ethylene-acrylate, ethylene-methacrylate or one or more mixtures, also because the toner is difficult to disperse, the color difference and gloss are difficult uniform

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Formula: AS plastic: 75.8wt%, acetyl tributyl citrate: 0.8wt%, ethylene bisstearamide: 2.4wt%, mixed dye: 21wt%.

[0014] The mixed dye composition is: oil soluble blue B 35#: 30wt%, solvent yellow 14#: 50wt%, transparent green 5B3#: 5wt%, disperse violet 28#: 5wt%, solvent red 24#: 10wt%.

[0015] Preparation method: set the temperature of the mixing room of the internal mixer to 170°C, and after the temperature reaches the set temperature, put a total amount of 57wt% AS plastic into the internal mixer, then add acetyl tributyl citrate, and internally mix for 30 Minutes, put ethylene bis stearic acid amide into the banburying kettle, continue banburying for 5 minutes, put the mixed dye 1 into the banburying kettle, continue kneading with the banburying machine for 30 minutes, unload and cool to room temperature naturally, and grind The equipment crushes the material, then mixes it with the remaining 43wt% of AS plastic, extrudes and granulates it through a twin-screw e...

Embodiment 2

[0017] Formula: AS1: 91.75wt%, acetyl tributyl citrate: 0.75wt%, ethylene bis stearic acid amide: 2.5wt%, mixed dye: 5wt%. Mixed dye composition is identical with embodiment 1.

[0018] Preparation method: set the temperature of the mixing chamber of the internal mixer to 170°C, and after the temperature reaches the set temperature, put a total amount of 58wt% AS plastic into the internal mixer, then add acetyl tributyl citrate, and internally mix for 30 Minutes, put ethylene bis stearic acid amide into the banburying kettle, continue banburying for 5 minutes, put the mixed dye 1 into the banburying kettle, continue kneading with the banburying machine for 30 minutes, unload and cool to room temperature naturally, and grind The equipment pulverizes the material, then mixes it with the remaining 42wt% of AS plastic, extrudes and granulates through a twin-screw extruder to obtain AS black masterbatch.

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Abstract

The invention discloses a black master batch applied to a multipolymer (AS series plastic) containing acrylonitrile and styrene and a preparation method thereof. The black master batch consists of an acrylonitrile-styrene multipolymer, acetyl tri-n-butyl citrate, ethylene bis stearamide and a black pigment. Partial acrylonitrile-styrene multipolymer, the acetyl tri-n-butyl citrate and the ethylene bis stearamide are subjected to melting and banburying in a banbury mixer evenly, the black pigment is added, the mixture is subjected to banburying and dispersed evenly as well as cooled and crushed, and the mixture is mixed with the remaining acrylonitrile-styrene multipolymer and is extruded and granulated on a twin screw. The produced black master batch is easy to disperse in the AS series plastic, the process equipment requirement of the subsequent coloration of the plastic product is reduced, the equipment efficiency is improved, the coloured plastic product has even color, no color difference and high lustrousness.

Description

technical field [0001] The invention relates to a color masterbatch used in plastic processing, in particular to a color masterbatch containing copolymers of acrylonitrile and styrene (AS series plastics) and a preparation method thereof. Background technique: [0002] AS series plastics include acrylonitrile-styrene copolymer (AS plastic), acrylate-acrylonitrile-styrene copolymer (AAS resin), graft copolymer of EPDM rubber with styrene and acrylonitrile (AES resin ), acrylonitrile-butadiene-styrene copolymer (ABS resin), methyl methacrylate-acrylonitrile-butadiene-styrene copolymer (transparent ABS resin or MABS resin), etc., usually using PS color It is difficult to disperse PS color masterbatch in AS plastic. In order to fully disperse the color masterbatch, it is necessary to increase the shear force of the mixing machine and increase the mixing time, thus increasing energy consumption and reducing work efficiency. [0003] CN1487018 discloses a kind of black masterbat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/12C08K5/00C08K5/11C08K5/20C08K5/18C08K5/23C08J3/22B29B7/72
Inventor 黄伟汕
Owner MALION NEW MATERIALS CO LTD
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