Surface-sulfonated monodisperse P(MMA-BA-St) polymer latex nanoparticles and preparation method thereof

A nano-latex and polymer technology, used in instruments, optics, electrography, etc., can solve the problems of harsh environment requirements, increase product production costs, poor stability against harsh environments, etc., and achieve high resistance to harsh environments. , the effect of simplifying the production process and reducing the expected cost

Active Publication Date: 2014-05-14
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the traditional styrene-acrylic copolymer resin, the resin has poorer performance in terms of charged and anti-harsh environment stability, resulting in more stringent requirements for the use environment. At the same time, the synthesis process of the resin involves 150 Catalytic dehydration reaction at high temperature above ℃, and the use of sulfonated monomers will increase the production cost of the product

Method used

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  • Surface-sulfonated monodisperse P(MMA-BA-St) polymer latex nanoparticles and preparation method thereof
  • Surface-sulfonated monodisperse P(MMA-BA-St) polymer latex nanoparticles and preparation method thereof
  • Surface-sulfonated monodisperse P(MMA-BA-St) polymer latex nanoparticles and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] In a container equipped with an electric stirrer, condensed water, and a thermometer, add 0.33 g of reactive surfactant sodium p-styrenesulfonate and deionized water to fully dissolve the sodium p-styrenesulfonate at room temperature. Mix 1.0g of methyl methacrylate, 3.0g of butyl acrylate, 6.67g of styrene and 0.55g of co-emulsifier hexadecane and add them to the above-mentioned aqueous solution of sodium p-styrenesulfonate, at 40°C, 500rpm / Stir and pre-emulsify for 15 minutes under the condition of min, and then use the KQ-300DE ultrasonic instrument produced by Kunshan Ultrasonic Instrument Co., Ltd. to ultrasonic fine emulsify for 10 minutes under the condition of output power 100%. Then transfer the system to a water bath with a set temperature of 70°C. Under the stirring condition of 300rpm / min, add 10.55g of potassium persulfate water-soluble (including 0.55g of potassium persulfate and 10.0g of water) dropwise to the system within 5min, and continue Reaction 3h...

Embodiment 2

[0046] In a container equipped with an electric stirrer, condensed water, and a thermometer, add 0.55 g of reactive surfactant sodium p-styrenesulfonate and deionized water to fully dissolve the sodium p-styrenesulfonate at room temperature. Mix 1.0g of methyl methacrylate, 3.0g of butyl acrylate, 6.45g of styrene and 0.55g of co-emulsifier hexadecane and add them to the above aqueous solution of sodium p-styrene sulfonate, at 40°C, 500rpm / Stir and pre-emulsify for 15 minutes under the condition of min, and then use the KQ-300DE ultrasonic instrument produced by Kunshan Ultrasonic Instrument Co., Ltd. to ultrasonic fine emulsify for 10 minutes under the condition of output power 100%. Then transfer the system to a water bath with a set temperature of 70°C. Under the stirring condition of 300rpm / min, add 10.55g of potassium persulfate water-soluble (including 0.55g of potassium persulfate and 10.0g of water) dropwise to the system within 5min, and continue Reaction 3h. After ...

Embodiment 3

[0049] In a container equipped with an electric stirrer, condensed water, and a thermometer, add 0.77 g of reactive surfactant sodium p-styrenesulfonate and deionized water to fully dissolve the sodium p-styrenesulfonate at room temperature. Mix 1.0g of methyl methacrylate, 3.0g of butyl acrylate, 6.23g of styrene and 0.55g of co-emulsifier hexadecane and add them to the above aqueous solution of sodium p-styrenesulfonate, at 40°C, 500rpm / Stir and pre-emulsify for 15 minutes under the condition of min, and then use the KQ-300DE ultrasonic instrument produced by Kunshan Ultrasonic Instrument Co., Ltd. to ultrasonic fine emulsify for 10 minutes under the condition of output power 100%. Then transfer the system to a water bath with a set temperature of 70°C. Under the stirring condition of 300rpm / min, add 10.55g of potassium persulfate water-soluble (including 0.55g of potassium persulfate and 10.0g of water) dropwise to the system within 5min, and continue Reaction 3h. After t...

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Abstract

The present invention relates to surface-sulfonated monodisperse P(MMA-BA-St) polymer latex nanoparticles and a preparation method thereof. According to the present invention, sodium p-styrenesulfonate or methacrylic acid sodium octanesulfonate is adopted as a reactive emulsifier; methyl methacrylate, butyl acrylate and styrene are adopted as monomers; a mini-emulsion method is adopted to prepare the surface-sulfonated monodisperse P(MMA-BA-St) polymer latex nanoparticles, wherein the glass transition temperature of the polymer latex nanoparticles and the molecular weight of the polymer chain can be controlled by adjusting a ratio of the soft monomer to the hard monomer and the use amount of the initiator. With the present invention, the glass transition temperature of the polymer latex nanoparticles and the molecular weight of the polymer chain can be adjusted; the polymer latex nanoparticles can be used as condensed resin particles for production of chemical toner of laser printers; and composition, size, morphology, and surface sulfonic charge density of the prepared latex particles are characterized.

Description

technical field [0001] The invention relates to a surface sulfonated monodisperse P(MMA-BA-St) polymer nano latex particle and a preparation method thereof. The prepared surface sulfonated latex particle has the characteristics of small particle size, monodispersity, surface sulfonation and glass transition The temperature and the molecular weight of the molecular chain can be adjusted. The prepared resin particles can be used as agglomerated resin particles for producing chemical toner for laser printers. Background technique [0002] Toner for laser printing and copiers is the main consumable in the printing and copying office market, and the market demand is very strong. Laser printing and copiers are mainly based on the principle of magnetoelectricity. The toners used are mainly divided into one-component magnetic toner and two-component non-magnetic toner. The toner for fixing function is separated, and the magnetic carrier medium can be recycled to become the mainstr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/14C08F220/18C08F2/26C08F6/22G03G9/08
Inventor 张秋禹周艳阳尹德忠张和鹏刘亚莉
Owner NORTHWESTERN POLYTECHNICAL UNIV
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