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Novel aqueous dispersant and preparation method thereof, and application of novel aqueous dispersant to dispersion containing solid particles

An aqueous dispersant, solid particle technology, applied in chemical instruments and methods, organic dyes, dissolution, etc., can solve the problems of small molecular weight, weak anchoring ability of solid particles, and inability to provide steric hindrance for solid particles, and achieves high molecular weight, Strong anchoring ability and the effect of improving dispersion performance

Inactive Publication Date: 2018-02-23
WINBOS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main disadvantages of the currently used water-based dispersants are small molecular weight, weak anchoring ability to solid particles, and hydrophilic polyether chains cannot provide sufficient steric hindrance for solid particles, etc.

Method used

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  • Novel aqueous dispersant and preparation method thereof, and application of novel aqueous dispersant to dispersion containing solid particles
  • Novel aqueous dispersant and preparation method thereof, and application of novel aqueous dispersant to dispersion containing solid particles
  • Novel aqueous dispersant and preparation method thereof, and application of novel aqueous dispersant to dispersion containing solid particles

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A new type of water-based dispersant, the dispersant contains a single hydroxyl polyether chain, and a comb-shaped polyphenylene ring molecular structure; the single hydroxyl polyether chain and the comb-shaped polyphenylene ring molecular body connection.

Embodiment 2

[0037] A new type of water-based dispersant, the dispersant contains a primary amine functional group polyether chain, and a comb-type polyphenylene ring molecular structure; the polyether chain and the comb-type polyphenylene ring molecular structure are passed through styrene Anhydride copolymer Sartomer SMA1000 connection.

Embodiment 3

[0039] Preparation of intermediate A-isocyanate: under nitrogen, add monohydroxy polyoxyethylene ether (molecular weight 1000, 330 parts, 0.33mol) dropwise to the trimer of hexamethylene diisocyanate Desmodur N3300 (192.6 parts, -NCO %=21.8%) at 70°C for 1 hour to obtain intermediate A.

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PUM

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Abstract

The invention discloses a novel aqueous dispersant and a preparation method thereof, and application of the novel aqueous dispersant to dispersion containing solid particles, belonging to the field ofdispersants. The novel aqueous dispersant contains a solvation chain compatible with an aqueous solvent and an anchoring group with affinity to dispersed solid particles. The solvation chain and theanchoring group are conjugated via a covalent bond. The novel aqueous dispersant is applied to dispersion containing solid particles of organic pigment, inorganic pigment, filler, graphene or metal powder. The dispersion is liquid dispersion or solid dispersion such as printing ink, paint, plastics, color paste, pesticides, and jet ink for ceramics. The novel aqueous dispersant provided by the invention is capable of improving the dispersion stability of solid particles in an aqueous medium or enhancing the application performance of a disperse system, and can reduce pollution of volatile organic solvents in the disperse system to environment.

Description

technical field [0001] The invention relates to the technical field of dispersants, in particular to a novel water-based dispersant. Background technique [0002] When preparing liquid dispersions such as pigments, coatings, inks, paints, pesticides, etc. or solid dispersions such as plastics, in order to better disperse the solid particles in the carrier and obtain an ideally mixed and stable dispersion, it is necessary to use a Dispersant for ideal dispersing effect. [0003] The main disadvantages of currently used water-based dispersants are small molecular weight, weak anchoring ability to solid particles, and hydrophilic polyether chains cannot provide sufficient steric hindrance for solid particles. Contents of the invention [0004] The first technical problem to be solved by the present invention is to provide a new green and non-polluting water-based dispersant that has affinity for solid particles and water-based solvents at the same time, has a good dispersion...

Claims

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Application Information

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IPC IPC(8): B01F17/40B01F17/00C09B67/38C09B67/46C09K23/40C09K23/00
CPCC09B67/0089C09K23/00C09K23/16
Inventor 郑中立黄华彬
Owner WINBOS NEW MATERIALS
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