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Block type polymer dispersant and preparation method thereof

A block type polymer and block polymer technology, which is applied in the treatment of dyed polymer organic compounds, chemical instruments and methods, fibrous fillers, etc., can solve the adverse effects of paint film appearance, hardness and aging resistance, etc. Poor stability and other problems, to achieve the effect of shortening grinding time, preventing pigment flocculation and precipitation, and increasing transparency and covering power

Inactive Publication Date: 2010-10-20
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When using traditional small molecule dispersants, the stability of the system is poor, and it also has adverse effects on the appearance, hardness and aging resistance of the paint film.

Method used

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  • Block type polymer dispersant and preparation method thereof
  • Block type polymer dispersant and preparation method thereof
  • Block type polymer dispersant and preparation method thereof

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Abstract

The invention discloses a block polymer dispersant and a preparation method thereof. The structure of the block polymer dispersant is shown in the following formula (I). The invention also discloses a synthesis method for preparing the block type polymer dispersant by single electron transfer / living radical polymerization. The invention has the following advantages: 1) the block type polymer dispersant prepared by the single electron transfer / living radical polymerization is light in color and nearly colorless, can be directly for use, and has a simple synthesis process; 2) the block type polymer dispersant can quickly humidify the pigment particles and shorten the milling time; 3) the steric effect of the polyitaconate deflocculates the pigment particles, and can prevent the pigment from flocculating and precipitating in the storage process; and 4) the deflocculated pigment particles are small, thereby achieving high glaze and color intensity, and increasing transparency and hiding power.

Description

technical field The invention relates to a novel pigment polymer dispersant, and also relates to a preparation method of the dispersant. Background technique In coatings, inks and other industries, the dispersion of pigments is an important part of manufacturing technology. Pigments form solid-liquid dispersions in paints and inks. The dispersion system is thermodynamically unstable, and aggregation may occur during paint making, storage, construction and application, and even film formation. In order to obtain a uniform and stable dispersion, it is often necessary to use a dispersant. When using traditional small molecule dispersants, the stability of the system is poor, and it also has adverse effects on the appearance, hardness and aging resistance of the paint film. In recent years, polymer dispersants have become a new generation of high-efficiency dispersants, which have a significant effect on the dispersion of pigments, especially on wettability and stability, and ...

Claims

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Application Information

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IPC IPC(8): B01F17/52B01F17/36B01F17/16C08F297/06C09C3/10C09C1/00C09C1/56C09B67/20C09K23/52C09K23/16C09K23/36
CPCC08F293/005C08F2438/01
Inventor 张方志
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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