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Functional white masterbatch and preparation method thereof

A white masterbatch, functional technology, applied in the field of color masterbatch, can solve the problems of flow pattern, shark skin, affecting the appearance of the product, etc., and achieve the effect of high whiteness, elimination of crystal points and elimination of flow pattern.

Inactive Publication Date: 2016-05-04
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, polyolefin products often have crystal points, flow lines, shark skin and other phenomena, which seriously affect the appearance of the product

Method used

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  • Functional white masterbatch and preparation method thereof
  • Functional white masterbatch and preparation method thereof
  • Functional white masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A functional white masterbatch and its preparation method, its formula is as follows: melt index is 2g / (2.16Kg, 190 ℃, 10min) linear low density polyethylene 30%, rutile type titanium dioxide 60%, ultramarine blue 0.2%, Dispersant polyethylene wax 4.8%, processing aid FX59245%.

[0029] The preparation method comprises the following steps: adding carrier resin, pigment, filler, and carved white pigment into a high-speed mixer for uniform mixing, then adding a dispersant and a processing aid, stirring at a high speed for 15 minutes, and melt-blending with a twin-screw extruder, The screw speed of the main engine is 300r / min, and the speed of the feeding screw is 600r / min. The pigment is evenly dispersed in the carrier resin through shearing and mixing of the screw, and then extruded, cooled, dried, pelletized, and packaged to obtain Product of the present invention. The temperature distribution of the twin-screw extruder is: from the feed section to the head: 90°C, 100°...

Embodiment 2

[0031] A functional white masterbatch and its preparation method, its formula is as follows: melt index is 2g / (2.16Kg, 190 ℃, 10min) linear low density polyethylene 32%, rutile type titanium dioxide 60%, ultramarine blue 0.2%, Dispersant polyethylene wax 4.8%, processing aid FX59203%.

[0032] The preparation method comprises the following steps: adding carrier resin, pigment, filler, and carved white pigment into a high-speed mixer for uniform mixing, then adding a dispersant and a processing aid, stirring at a high speed for 15 minutes, and melt-blending with a twin-screw extruder, The screw speed of the main engine is 300r / min, and the speed of the feeding screw is 600r / min. The pigment is evenly dispersed in the carrier resin through shearing and mixing of the screw, and then extruded, cooled, dried, pelletized, and packaged to obtain Product of the present invention. The temperature distribution of the twin-screw extruder is: from the feed section to the head: 90°C, 100°...

Embodiment 3

[0034] A functional white masterbatch and its preparation method, the formula is as follows: 30% of linear low density polyethylene with a melt index of 2g / (2.16Kg, 190°C, 10min), 50% of rutile titanium dioxide, 0.2% of ultramarine blue, Dispersant polyethylene wax 4.8%, processing aid FX59245%, heavy calcium carbonate 10%.

[0035] The preparation method comprises the following steps: adding carrier resin, pigment, filler, and carved white pigment into a high-speed mixer for uniform mixing, then adding a dispersant and a processing aid, stirring at a high speed for 15 minutes, and melt-blending with a twin-screw extruder, The screw speed of the main engine is 300r / min, and the speed of the feeding screw is 600r / min. The pigment is evenly dispersed in the carrier resin through shearing and mixing of the screw, and then extruded, cooled, dried, pelletized, and packaged to obtain Product of the present invention. The temperature distribution of the twin-screw extruder is: from ...

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Abstract

The invention provides a functional white masterbatch and a preparation method thereof. The masterbatch comprises the following components by weight: 20-30% of a carrier resin, 40-70% of a pigment, 0-1% of a rongalite pigment, 5-10% of a dispersant, 1-5% of a processing aid and 0-15% of a filler. The preparation method comprises the following steps: mixing the carrier resin, pigment, filler and rongalite pigment; adding the dispersant and processing aid, stirring and conducting melt blending; extruding, cooling, drying and pelletizing to obtain the functional white masterbatch. The functional white masterbatch of the invention is applied to coloring of polyolefin articles, has high whiteness and good dispersion, and particularly can serve to eliminate crystal points, eliminate the flow pattern, eliminate die plot accumulated materials in the processing of blown film, extrusion pipe and sheet.

Description

technical field [0001] The invention relates to a color masterbatch, in particular to a functional white masterbatch and a preparation method. Background technique [0002] In recent years, with the rapid development of the plastic industry and the continuous improvement of plastic properties, polyolefin products have been more widely used, and some of them need to be colored. Generally, there are three methods for coloring polyolefins: toner coloring, dyeing and coloring and masterbatch coloring. Toner coloring is very simple, but it has the disadvantages that it is easy to produce color spots, the color difference is not easy to control, and it has great environmental pollution. The color of the product is stable and uniform through dyeing and drawing, but the mechanical properties of the product are damaged, and the cost is high, and a large amount of colored raw materials needs to be stored. Masterbatch coloring is to uniformly load the pigment in the resin in a super ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06B29C47/92B29C48/92
CPCC08L23/0815B29C48/92B29C2948/9259B29C2948/92704C08L2205/03C08L2310/00C08L23/06C08K2003/2241C08K3/34C08K2003/265C08K2003/3045
Inventor 虞明东黎欢缪慧蒋天龙
Owner SHANGHAI WEIKAI CHEM