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A kind of color masterbatch prepared based on active monomer in-situ polymerization and preparation method thereof

A technology of active monomer and in-situ polymerization, which is applied in the field of color masterbatches, can solve the problems of poor compatibility of organic carriers and difficulty in dispersion, and achieve good compatibility, improved conversion rate, and good melt fluidity

Active Publication Date: 2022-06-28
MALION NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, pigments are mainly divided into inorganic pigments and organic-inorganic pigments. Compared with organic-inorganic pigments, inorganic pigments have better weather resistance and heat resistance, but have poor compatibility with organic carriers and are not easy to disperse in carriers.

Method used

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  • A kind of color masterbatch prepared based on active monomer in-situ polymerization and preparation method thereof
  • A kind of color masterbatch prepared based on active monomer in-situ polymerization and preparation method thereof
  • A kind of color masterbatch prepared based on active monomer in-situ polymerization and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Pretreatment process: the particle size is 0.5~1.5 μm, and the specific surface area is 5~8 m 2 / g, the specific gravity is 5~5.5 g / cm 3 The ultramarine blue is used as the raw material inorganic pigment; the ethyl acrylate monomer, styrene monomer and butadiene monomer are respectively added to the NaOH solution of 5% mass concentration, separated after vibration, and then washed with deionized water, and the above process 3 is recycled. ~5 times to remove the possible inhibitors of industrial grade ethyl acrylate monomer, styrene monomer, butadiene monomer; azobisisobutyronitrile is recrystallized and purified by absolute ethanol before use, and stored at low temperature until use ;

[0032] Preparation process:

[0033] (1) Preparation of latex blend: Weigh 1 kg of ethyl acrylate monomer and 100 g of ultramarine blue, pour it into a three-port reactor, and heat it up to 60 ± 1 °C at a stirring rate of 350-400 rpm under nitrogen protection; Dissolve 10 g of azobisi...

Embodiment 2

[0039] Pretreatment process: the particle size is 0.5~1.5 μm, and the specific surface area is 5~8 m 2 / g, the specific gravity is 3.5~4.5 g / cm 3 ultramarine blue, and the particle size is 1.2~2.5 μm, and the specific surface area is 15~25 m 2 / g, the specific gravity is 4.5~6 g / cm 3The titanium yellow is used as the raw material inorganic pigment; the ethyl acrylate monomer, styrene monomer and butadiene monomer are respectively added to the NaOH solution of 5% mass concentration and separated after vibration, and then washed with deionized water, and the above steps are recycled. 3~5 times to remove possible inhibitors of industrial grade ethyl acrylate monomer, styrene monomer and butadiene monomer; azobisisobutyronitrile is recrystallized and purified by absolute ethanol before use, and stored at low temperature until use.

[0040] Preparation process:

[0041] (1) Preparation of latex blend: Weigh 1 kg of ethyl acrylate monomer, 500 g of styrene, 500 g of ultramarine ...

Embodiment 3

[0047] Pretreatment process: the particle size is 1.2~2.5 μm, and the specific surface area is 1~25 m 2 / g, the specific gravity is 4.5~6 g / cm 3 Titanium yellow, and the particle size is 4-5 μm, the specific surface area is 35~40m 2 / g, the specific gravity is 7~8 g / cm 3 2-methyl methacrylate monomer and vinyl acetate monomer were respectively added to the NaOH solution of 4% mass concentration and separated after vibration, then washed with deionized water, and the above-mentioned operation 3 was recycled. ~5 times to remove industrial grade methyl 2-methacrylate monomer and possible inhibitor of vinyl acetate monomer; azobisisobutyronitrile is recrystallized and purified by absolute ethanol before use, and stored at low temperature until use.

[0048] Preparation process:

[0049] (1) Preparation of latex blend: Weigh 2 kg of 2-methyl methacrylate monomer, 750 g of titanium yellow, and 750 g of iron oxide, pour it into a three-port reactor, and under nitrogen protection, ...

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Abstract

A method for preparing color masterbatches based on in-situ polymerization of active monomers, the method comprises the following steps: dispersing inorganic pigments in premixed active monomers under continuous stirring, and prepolymerizing into latex blends under the action of initiation; and then The above-mentioned latex blend, blended active monomer, blended active monomer, tertiary dodecyl mercaptan, and ethylbenzene are polymerized in situ by thermal initiation. When the conversion rate of the polymerized product reaches 55% to 60%, the untreated The fully polymerized semi-polymerized product is separated from the polymerized product, and the polymerized product is extruded through an extruder to prepare color masterbatch; the incompletely polymerized semi-polymerized product can be vaporized and recovered by the recovery unit, and after cooling, it is returned to the polymerization tank. The mixed system can be reused after being mixed together, which can effectively improve production efficiency; the colored ABS plastic has a small hue deviation range, good weather resistance, and has little impact on the basic performance of the ABS base resin, so it has good practicability.

Description

technical field [0001] The invention relates to the technical field of color masterbatch, in particular to a color masterbatch prepared based on in-situ polymerization of active monomers, and a preparation method of the color masterbatch. Background technique [0002] With the increasing demand for personalized and diversified consumer home appliances, ABS plastic home appliances with high strength, high toughness, heat resistance and corrosion resistance have ushered in gratifying business opportunities. [0003] ABS is synthesized from three chemical units of acrylonitrile, butadiene and styrene, and its microscopic morphology presents an "island" structure. Since ABS is copolymerized by three monomers with different components, its melt fluidity is relatively complicated, and the proportions of the three components are different, and the properties are also different. [0004] Based on this, the color masterbatch used for ABS substrate resin coloring has higher requireme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/22C08L51/04C08F265/04C08F265/06C08F212/08C08F236/10C08F210/02C08F218/08C08F220/18
CPCC08J3/226C08F265/04C08F265/06C08J2451/04C08F212/08C08F236/10C08F210/02C08F218/08C08F220/18
Inventor 徐井水黄伟汕张朝益张朝凯
Owner MALION NEW MATERIALS CO LTD
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