Polypropylene color masterbatch and preparation method thereof

A color masterbatch and polypropylene technology, applied in the field of plastic coloring, can solve the problems of uneven color, easy to produce flow lines, large color difference, etc., and achieve the effect of not easy to sink, overcome flow lines, and excellent dispersion

Inactive Publication Date: 2012-01-25

洪伟

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AI-Extracted Technical Summary

Problems solved by technology

[0004] The object of the present invention is to solve the problems existing in the coloring of the above-mentioned existing polypropylene color masterbatch, and to provide a polypropylene color mast...

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Abstract

The invention discloses a polypropylene color masterbatch and a preparation method thereof. The polypropylene color masterbatch comprises the following components, by weight, 20-70% of polypropylene, 0.01-70% of a toner, 0-40% of a dispersant, 0.1-10% of a foaming agent, 0-10% of a crosslinking agent, 0-2% of a heat stabilizer, and 0-40% of a filler. The preparation method comprises the following steps: burdening and mixing above components according above proportions, carrying out melt blending with a double screw extruder or an internal mixer, and granulating and drying to prepare the color masterbatch. The shape of the color masterbatch is cylindrical, beaded, square or round tablet-like according to different granulating modes. The polypropylene color masterbatch provided in the invention which can be used in coloring products of polypropylene extrusion, spinning and injection molding has the advantages of excellent dispersibility and color stability.

Technology Topic

PolypropyleneMelt blending +4

Examples

Experimental program(4)
Comparison scheme(1)
Effect test(1)

Example Embodiment

[0013] Example 1

[0014] Under normal temperature and pressure, the following components and weight percentages: polypropylene 50%, titanium dioxide 40%, polyethylene wax 8%, water 2%, mixed at high speed in a high-speed mixer for 10 minutes, using a twin-screw extruder Melt blending is carried out, the temperature is controlled at 190℃, the screw speed is 200r/min, the pigment is uniformly dispersed in the carrier resin through the shearing and mixing of the screw, and then the water-cooled stranding granulation is performed to obtain the columnar color masterbatch of the present invention grain.

Example Embodiment

[0015] Example 2

[0016] Under normal temperature and pressure, the following components and weight percentages: polypropylene 35%, lithopone 35%, phthalocyanine green 1%, ultramarine blue 2%, EBS 2%, oxidized polyethylene wax 8%, white mineral oil 2 %, phosphite 168 2%, azodicarbonamide (ADC) 1%, 4,4'-oxobis (sulfonyl semicarbazide) 2%, dicumyl peroxide (DCP) 1%, two Tert-butyl peroxide (DTBP) 1%, calcium carbonate 8%. High-speed mixing is carried out in a high-speed mixer for 15 minutes, and after mixing to a temperature of 165° C. by banburying, air-cooling and hot-cutting granulation are used to prepare the disc-shaped masterbatch of the present invention.

Example Embodiment

[0017] Example 3

[0018] Under normal temperature and pressure, the following components and weight percentages: polypropylene 70%, iron oxide red 20%, polyethylene glycol 7%, OBSH 2%, antioxidant 1010 1%, high-speed mixing machine Mix for 10 minutes, use a twin-screw extruder for melt blending, the temperature is controlled at 180℃, the screw speed is 200r/min, the pigment is uniformly dispersed in the carrier resin through the shearing and mixing of the screw, and then water-cooled drawing The color masterbatch of the present invention is obtained by granulation.

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Composite binding agent applicable for silicon-based negative electrode material of lithium ion battery, preparation method of composite binding agent and negative electrode material

InactiveCN105633411AGood dispersionImprove electrochemical performanceNegative electrodesSecondary cellsMarket potentialButadiene-styrene rubber

Owner:HUZHOU CHUANGYA POWER BATTERY MATERIALS

Method for preparing nanometer negative ion automobile inner decoration facing

InactiveCN101349006AGood dispersionHigh air negative ion concentrationFibre treatmentSuperstructure subunitsIonSodium polyacrylate

Owner:SUZHOU UNIV

Classification and recommendation of technical efficacy words

Good dispersion
Not easy to sink

Polypropylene color masterbatch and preparation method thereof

A color masterbatch and polypropylene technology, applied in the field of plastic coloring, can solve the problems of uneven color, easy to produce flow lines, large color difference, etc., and achieve the effect of not easy to sink, overcome flow lines, and excellent dispersion

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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