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Black agglomerate specially for polystyrene resin and its prepn process

A technology of styrene-based resin and black masterbatch, which is applied in the field of plastic coloring, can solve the problems of not satisfying the mechanical strength and dispersibility of engineering plastics, poor dispersibility, and affecting the mechanical properties of materials, and achieve strong hiding power, less addition, and The effect of high whiteness

Inactive Publication Date: 2004-04-07
山东色母料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the gradual expansion of the application range of engineering plastics and the continuous improvement of its quality requirements and quality standards, the existing color masterbatch and its preparation process are far from meeting the requirements of engineering plastics in terms of mechanical strength and dispersion properties. requirements
Because the dispersibility of this kind of masterbatch is poor, especially when the size of plastic products is large, its shortcomings become more prominent.
At the same time, the amount of existing color masterbatch is generally between 3-4% to achieve a satisfactory dispersion effect. Due to the large amount of addition, it is easy to affect the mechanical properties of the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 prepares 100 kilograms and is specially used in the black masterbatch of styrenic resin

[0022] 1. The weight of each component is:

[0023] Pigment black 20kg

[0024] Polyethylene wax 2 kg

[0025] Ethylene bis stearic acid amide (EBS) 15 kg

[0026] Zinc stearate (ZnSt) 3 kg

[0027] High Impact Polystyrene (HIPS) 55kg

[0028] Ethylene vinyl acetate copolymer resin 5 kg

[0029] 2. Preparation method:

[0030] First pre-mix the components in proportion, then knead in a high-speed kneader with a rotation speed of 1000 rpm for 25 minutes, and finally put the fully kneaded mixture into a twin-screw extruder for extrusion, cool and dry , Pelletized and packaged to make the required masterbatch.

Embodiment 2

[0031] Embodiment 2 prepares 100 kilograms of black masterbatches that are specially used in styrenic resins

[0032] 1. The weight of each component is:

[0033] Pigment black 30kg

[0034] Polyethylene wax 3 kg

[0035] Ethylene bis stearic acid amide (EBS) 20 kg

[0036] Acrylonitrile-styrene-butadiene copolymer 4 kg

[0037] High Impact Polystyrene (HIPS) 40kg

[0038] Ethylene vinyl acetate copolymer resin 3 kg

[0039] 2. The preparation method is the same as in Example 1.

Embodiment 3

[0040] Embodiment 3 prepares 100 kilograms and is specially used in the black masterbatch of styrenic resin

[0041] 1. The weight of each component is:

[0042] Pigment black 22kg

[0043] Polyethylene wax 2.5 kg

[0044] Ethylene bis stearic acid amide (EBS) 25 kg

[0045] High Impact Polystyrene (HIPS) 45kg

[0046] Ethylene vinyl acetate copolymer resin 5.5 kg

[0047] 2. The preparation method is the same as in Example 1.

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Abstract

The black agglomerate consists specially for polystyrene resin consists of black pigment 20-35 wt%, dispersing lubricant 15-30 wt%, dispersing lubricant 15-30 wt% and carrier resin 45-65 wt%. The preparation process includes mixing the components in the said proportion, kneading in high speed kneading machine of 800-1500 rpm, extruding in double-screw extruder, cooling, stoving and pelletizing. The present invention has the features of less added amount, good dispersivity, high heat resistance, high light resistance, high stability, etc. The black agglomerate is added into polystyrene resin to obtain black plastic product with homogeneous blackness, high brightness and no influence on the mechanical performance.

Description

Technical field [0001] The invention relates to the technical field of plastic coloring, in particular to a black masterbatch specially used for styrene resins. [0002] The invention also relates to the preparation method of the black masterbatch specially used for styrene resin. Background technique [0003] At present, styrenic engineering plastics, such as general-purpose polystyrene (GPS), high-impact polystyrene (HIPS), acrylonitrile-styrene-butadiene copolymer (ABS), etc., have superior mechanical properties and are used in machinery , automotive, home appliances, national defense and other application fields occupy an important position. With the gradual expansion of the application scope of engineering plastics and the continuous improvement of its quality requirements and quality standards, the existing color masterbatch and its preparation process are far from being able to meet the requirements of engineering plastics in terms of mechanical strength and dispersi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/20C08K3/04C08L23/08C08L25/06
Inventor 王培利曹智欧阳秋英刘学伦王永牛伟
Owner 山东色母料厂
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