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A kind of hyperbranched dispersant and preparation method thereof

A technology of hyperbranched dispersant and catalyst, which is applied in the direction of coating, etc., can solve the problems of high price of hyperdispersant, affect the performance of hyperbranched dispersant, complex central atomic structure, etc., and achieve excellent color development and versatility , simple structure and low cost

Active Publication Date: 2022-04-08
英德侗富贵科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned multifunctional central atom structure is relatively complex, the production process is long, and the pure product is rare, which makes the price of hyperdispersant remain high, and the low purity of central atom will also affect the performance of hyperbranched dispersant

Method used

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  • A kind of hyperbranched dispersant and preparation method thereof
  • A kind of hyperbranched dispersant and preparation method thereof
  • A kind of hyperbranched dispersant and preparation method thereof

Examples

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Embodiment 1

[0060] The embodiment of the present invention provides a kind of preparation method of hyperbranched dispersant, comprises the following steps:

[0061] (1) Weigh 7.847g of RuCl 3 ·3H 2 O (261.57, 0.03mol), 2.705g FeCl 3 ·6H 2 O (270.5, 0.01mol) was added into 200mL of double distilled water, stirred and added dropwise with 5% hydrochloric acid to make the pH of the solution 3, after stirring and dissolving, 100g of dry γ-Al 2 o 3 Slowly immerse in the above solution, stir and mix, put it into a constant temperature 50°C electric blast drying oven, let it stand for 72h, filter, wash, and dry to obtain the catalyst precursor.

[0062] (2) Soak the catalyst precursor obtained in step (1) in distilled water, cool down to 15°C, and use 5% hydrochloric acid to adjust the pH value of the solution to 3, then add 15% NaBH dropwise under stirring conditions 4 When the alkali solution does not have hydrogen and heat to be emitted in the solution, filter, wash, put into a vacuum ov...

Embodiment 2

[0067] The embodiment of the present invention provides a kind of preparation method of hyperbranched dispersant, comprises the following steps:

[0068] (1) Weigh 7.847g of RuCl 3 ·3H 2 O (261.57, 0.03mol), 2.705g FeCl 3 ·6H 2 O (270.5, 0.01mol) was added into 200mL of double distilled water, stirred and added dropwise with 5% hydrochloric acid to make the pH of the solution 3, after stirring and dissolving, 100g of dry γ-Al 2 o 3 Slowly immerse in the above solution, stir and mix, put it into a constant temperature 50°C electric blast drying oven, let it stand for 72h, filter, wash, and dry to obtain the catalyst precursor.

[0069] (2) Soak the catalyst precursor obtained in step (1) in distilled water, cool down to 15°C, and use 5% hydrochloric acid to adjust the pH value of the solution to 3, then add 15% NaBH dropwise under stirring conditions 4 When the alkali solution does not have hydrogen and heat to be emitted in the solution, filter, wash, put into a vacuum ov...

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Abstract

The invention discloses a hyperbranched dispersant and a preparation method thereof. The present invention uses 1,3,5-trihydroxycyclohexane as the central atom (reactant) to prepare a hyperbranched dispersant with a large molecular weight, and the central atom used has the advantages of simple structure, simple production process, high purity and low cost , and the performance of the hyperbranched dispersant is excellent, specifically, the hyperbranched dispersant has good wettability and dispersibility to pigments, and is used in varnishes and white paints to make it have excellent color development and versatility, and The dispersant has good compatibility with various resins. The preparation method of the invention is simple, low in cost and suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of polymer compound synthesis, in particular to a hyperbranched dispersant and a preparation method thereof. Background technique [0002] Hyperbranched dispersant is a kind of commonly used additives that can stably disperse inorganic pigments such as carbon black and titanium dioxide in water and oil systems. Structurally speaking, hyperbranched dispersants are a class of polymer materials composed of multi-branched central atoms and multiple anchor points on the branched chains. It is the particularity of the structure that makes this dispersant have super dispersing and stabilizing ability. In other words, the performance of the hyperdispersant depends on the structure of the multi-branched central atom and multiple branched chains with anchor points. The commonly used central atoms and their characteristics are as follows: [0003] (1) The degree of branching is 2, which is a planar structure and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/32C08G18/48C09D7/65
CPCC09D7/65C08G18/3212C08G18/48C08G18/6677
Inventor 谭树隆
Owner 英德侗富贵科技材料有限公司
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