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Blue phase black masterbatch for polyethylene or polypropylene and preparation method thereof

A technology of black masterbatch and polypropylene, applied in the field of blue phase black masterbatch and its preparation, can solve the problems of poor dispersion effect and quality matching effect, pollution of production equipment and production site, and high color matching cost, and achieve broad application prospects and Market competitiveness, simple process, the effect of improving gloss and blackness

Active Publication Date: 2020-03-17
珠海市南蓝塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to achieve high black effect, toner is often used for color matching on the market. The cost of color matching is high, and it will cause pollution to production equipment and production sites. The storage time is short and time-sensitive. When it comes to soft rubber products, it is mostly red, and the dispersion effect and quality are obviously inferior to the color matching effect.

Method used

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  • Blue phase black masterbatch for polyethylene or polypropylene and preparation method thereof
  • Blue phase black masterbatch for polyethylene or polypropylene and preparation method thereof
  • Blue phase black masterbatch for polyethylene or polypropylene and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] By mass, 60% of the melt index is the LLDPE resin of 8, the average particle diameter of 12% is 200nm calcium carbonate, and 25% of carbon black is that the iodine absorption value is 134g / Kg, and the DBP absorption value is 95×10 -5 m 3 The carbon black of / kg, 1% polyethylene wax (PE wax), 2% zinc stearate, after mixing 10 minutes in the high-speed mixer, then banburying in the internal mixer until the plastic is all melted (the temperature is controlled at 170 ℃), cooled and melted, crushed, and then extruded and pelletized with a twin-screw extruder with a length-to-diameter ratio of 44:1. The extrusion temperature is 135-180° C. blue phase black masterbatch.

Embodiment 2

[0029] By mass, 62% of the melt index is the LLDPE resin of 5, the average particle size of 5% is calcium carbonate of 500nm, and 30% of carbon black is that the iodine absorption value is 188g / Kg, and the DBP absorption value is 68×10 -5 m 3 The carbon black of / kg, 1.5% polyethylene wax (PE wax), 1.5% calcium stearate, after mixing 8 minutes in the high-speed mixer, then banbury in banbury mixer to all melting of plastics (temperature is controlled at 170 ℃), cooled and melted, crushed, and then extruded and pelletized with a twin-screw extruder with a length-to-diameter ratio of 44:1. The extrusion temperature is 135-180° C. blue phase black masterbatch.

Embodiment 3

[0031] By mass, 61.5% of the LLDPE resin with a melt index of 3, 35% carbon black has an iodine absorption value of 222g / Kg, and a DBP absorption value of 55×10 -5 m 3 The carbon black of / kg, 1.5% ethylene stearic acid amide (EBS), 2% zinc stearate, after mixing 10 minutes in the high-speed mixer, then banburying in the banbury mixer until the plastic is all melted (temperature control at 170°C), cooled and melted, crushed, then extruded and pelletized with a twin-screw extruder with a length-to-diameter ratio of 44:1, the extrusion temperature is 130-180°C, and pelletized with a water ring to obtain polyethylene or Blue shade black masterbatch for polypropylene.

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Abstract

The invention discloses a blue-phase black master batch for polyethylene or polypropylene and a preparation method of the blue-phase black master batch. The blue-phase black master batch comprises, inweight percent, 40-75% of LLDPE (linear low-density polyethylene) resin, 25-40% of carbon black, 0-5% of dispersing agents, 0-2% of lubricating agents and 0-12% of inorganic fillers. According to theblue-phase black master batch, the LLDPE resin with the melt index lower than 10 is selected and further matched with the pigment carbon black with a proper particle size, a proper iodine absorptionvalue and a proper oil absorption value, the glossiness and blackness of PE (polyethylene) and PP (polypropylene) products can be remarkably improved in PE and PP injection molding, so that the products can display blue-phase black, and the blue-phase black master batch is low in manufacturing cost and simple in process. Compared with an imported master batch, in PE and PP injection molding, an equal quantity of black master batches are added, the displayed black phase is bluer, and the blue-phase black master batch has a wide application prospect and market competitiveness.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a blue phase black master batch for polyethylene or polypropylene and a preparation method thereof. Background technique [0002] The brighter the surface gloss of black soft rubber products, the stronger the blackness, and the higher the quality. Therefore, many manufacturers and designers are pursuing high-black plastic surface effects. Theoretically, using high-pigment carbon black for coloring will show better blackness, but high-pigment carbon black is difficult to disperse, and the hue and dispersibility of carbon black in the final product and the quality of the base material, screw The structure, mold surface gloss, injection pressure and other factors have a great relationship. [0003] Now in the market, toner is often used for color matching in order to achieve a high black effect. The cost of color matching is high, and it will cause pollution to production...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/12C08L23/08C08K3/04C08J3/22
Inventor 李星宝廖永固
Owner 珠海市南蓝塑胶科技有限公司
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