Preparation method and application of anionic nonionic reactive emulsifier

A reactive emulsifier, anion and non-ionic technology, applied in the preparation of sulfonate, organic chemistry, etc., can solve the problems of environmental biological toxicity, large emulsion particle size, deviation of hard water resistance, etc., achieve high emulsification and dispersion ability, small Effect of Particle Size and Low Surface Tension

Active Publication Date: 2017-05-31
INST OF CHEM ENG GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since primary alcohols do not contain EO hydrophilic segments, the steric stability is poor, the particle size of the synthesized emulsion is too large, and the resistance to hard water is biased; and the alkylphenols with excellent emulsifying ability are environmentally biotoxic, and related industries at home and abroad is being phased out using

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  • Preparation method and application of anionic nonionic reactive emulsifier
  • Preparation method and application of anionic nonionic reactive emulsifier
  • Preparation method and application of anionic nonionic reactive emulsifier

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preparation example Construction

[0030] The preparation method of described a kind of negative nonionic reactive emulsifier, comprises the following steps:

[0031] 1) Maleic anhydride and secondary alcohol polyoxyethylene ether are reacted to synthesize secondary alcohol polyoxyethylene ether maleic acid monoester under the action of a catalyst;

[0032] 2) Neutralizing secondary alcohol polyoxyethylene ether maleate monoester with alkaline solution to obtain secondary alcohol polyoxyethylene ether maleate monoester salt;

[0033] 3) After reacting secondary alcohol polyoxyethylene ether maleate monoester salt with 3-chloro-2-hydroxypropanesulfonate sodium, and then adjusting the solid content of the system, an anion-nonionic reactive emulsifier was prepared.

[0034] Preferably, the mass ratio of maleic anhydride, secondary alcohol polyoxyethylene ether, catalyst, alkali, and 3-chloro-2-hydroxypropanesulfonate is (50~60):(195~970):(0.3 ~6): (18 ~ 30): (90 ~ 110); further preferably, the maleic anhydride, s...

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Abstract

The invention discloses a preparation method and an application of an anionic nonionic reactive emulsifier. The structural formula of the anionic nonionic reactive emulsifier is as shown in the specification, wherein in the formula, n is 5-40. Meanwhile, the invention further discloses a preparation method of the anionic nonionic reactive emulsifier and an application of the anionic nonionic reactive emulsifier in preparation of polymers. The anionic nonionic reactive emulsifier disclosed by the invention has high spatial stability, high emulsifying dispersion ability, low foam, low surface tension, wetting and other excellent performances, and can be used in emulsion polymerization, especially in styrene-acrylic emulsion polymerization, to prepare a high-performance emulsion with high stability, high luster and small particle size.

Description

technical field [0001] The invention relates to a preparation method and application of an anion-nonionic reactive emulsifier, belonging to the field of emulsifiers in polymer emulsions. Background technique [0002] Emulsifier is one of the main components in the emulsion polymerization system and plays a decisive role in the performance of the polymer. Traditional emulsifiers are physically adsorbed on the surface of latex particles. When the temperature changes, shear force is applied or electrolyte is added, the stability of the emulsion will change or even break; the emulsifier will migrate to the coating film during the film formation process. A layer of non-chemically bonded hydrophilic emulsifier layer is formed on the surface. Once exposed to water or damp, it will cause the coating film to absorb water and swell, causing defects such as blooming, whitening, and gloss loss, and reduce the gloss, film-forming rate and water resistance of the coating film. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/337C08G65/331C08F283/06C08F220/18C08F212/08C08F220/06C08F222/24C08F2/24C08F2/30C08F2/26C07C309/12C07C303/32
CPCC07C303/32C07C309/12C08F2/24C08F2/26C08F2/30C08F220/18C08F220/1804C08F283/065C08G65/331C08G65/337C08F212/08C08F220/06C08F222/245
Inventor 余龙飞黄淋佳李欢玲郑小珊李莉韩从辉
Owner INST OF CHEM ENG GUANGDONG ACAD OF SCI
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