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Anionic emulsifier, and preparation method and application thereof

An anionic emulsifier and catalyst technology, applied in coatings, epoxy resin coatings, etc., can solve problems such as affecting the water resistance of epoxy paints and restricting the application of water-based epoxy paints, achieving excellent emulsifying properties, outstanding performance, and reducing impact Effect

Active Publication Date: 2016-03-09
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing water-based epoxy paints use epoxy emulsions as raw materials, but the hydrophilic effect of the emulsifier seriously affects the water resistance of epoxy paints, which limits the application of water-based epoxy paints

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides an anionic emulsifier, which is prepared from p-aminobenzenesulfonic acid, epoxy reactive diluent and epoxy resin in a molar ratio of 1:1:1.1.

[0027] Wherein, the epoxy reactive diluent is butyl glycidyl ether, and the epoxy resin is E44.

Embodiment 2

[0029] This embodiment provides an anionic emulsifier, which is prepared from p-aminobenzenesulfonic acid, epoxy reactive diluent and epoxy resin in a molar ratio of 1:1:1.05.

[0030] Wherein, the epoxy reactive diluent is benzyl glycidyl ether, and the epoxy resin is E44.

Embodiment 3

[0032] This embodiment provides an anionic emulsifier, which is prepared from p-aminobenzenesulfonic acid, epoxy reactive diluent and epoxy resin in a molar ratio of 1:1:1.15.

[0033] Wherein, the epoxy reactive diluent is benzyl glycidyl ether, and the epoxy resin is E51.

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PUM

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Abstract

The invention discloses an anionic emulsifier, and a preparation method and application thereof. The anionic emulsifier is prepared from sulfanilic acid, epoxy active diluent and epoxy resin according to a mol ratio of 1: 1: 1.05-1.15. Specifically, the preparation method comprises a step of preparing the anionic emulsifier with a solid content of 50 to 55% from epoxy resin, epoxy active diluent and sulfanilic acid under the catalysis of triphenyl phosphine. The structure of the anionic emulsifier provided by the invention is unique and innovative; and a benzenesulfonate group, an epoxy group (provided by the epoxy resin) and a lipophilic chain segment are introduced into a same molecule, so excellent emulsification performance of the anionic emulsifier is guaranteed, and the anionic emulsifier can be ideally applied to epoxy emulsion. The anionic emulsifier is a reactive anionic emulsifier and has strong emulsification and epoxidation capacity; and the anionic emulsifier can crosslink with an epoxy hardener so as to reduce the mobility of the anionic emulsifier in a paint film, so influence on water resistance is reduced.

Description

technical field [0001] The invention relates to the technical field of functional materials, and more specifically relates to an anionic emulsifier and its preparation method and application. Background technique [0002] Water-based epoxy paint is based on water-based epoxy resin system, adding pigments, fillers and additives, and the paint is made through a certain process. It is an environmentally friendly epoxy resin paint. This environmentally friendly paint has the following advantages : (1) Use water as diluent, very low VOC; (2) The coating has good adhesion to wet substrates and good one-way air permeability; (3) Good recoatability, strong interlayer adhesion, and more efficient construction Convenient; (4) The coating has excellent physical, chemical, and mechanical properties; (5) It can be brushed, rolled, and sprayed, and the tools are easy to clean. Due to the superior performance of water-based epoxy paint, and there is no danger of explosion and fire in tran...

Claims

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Application Information

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IPC IPC(8): C08J3/03C08L63/00C09D163/00C09D7/12
Inventor 刘善江刘宝丰花东栓刘占川董立志郑齐肖明荆旺刘艳菲郭京林
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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