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Terpenyl ester hyperdispersant and preparation method for same

A technology of hyperdispersant and terpene-based ester, which is applied in chemical instruments and methods, transportation and packaging, and dissolution, and can solve problems such as large particles, thermodynamic instability, and impact

Active Publication Date: 2015-08-19
GUANGXI UNIV FOR NATITIES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to its very small particle size, ultrafine powder has a large specific surface area and high specific surface energy, high surface activity, and there are strong van der Waals forces, hydrogen bonds, and chemical bonds between particles to attract each other. Unstable system, it is easy to agglomerate, making the particles larger and not uniformly dispersed in the matrix material, thus affecting the performance of its characteristics

Method used

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  • Terpenyl ester hyperdispersant and preparation method for same
  • Terpenyl ester hyperdispersant and preparation method for same
  • Terpenyl ester hyperdispersant and preparation method for same

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Embodiment

[0028] A preparation method of terpene-based ester hyperdispersant, its processing steps are as follows:

[0029] (1) Preparation of terpene resin α, β-unsaturated compound adduct: In parts by weight, 100 parts of terpene resin, 25-50 parts of α, β-unsaturated compound, and 0.1-1.5 parts of catalyst are put into The reaction kettle is slowly heated to 160~200°C under the protection of nitrogen, and stirred for 4~6 hours to obtain terpene resin α, β-unsaturated compound adducts;

[0030] (2) Preparation of ester hyperdispersant: add 1~50 parts of modified carboxylation reagent and 20~60 parts of dihydric alcohol to the above-mentioned terpene resin α, β-unsaturated compound adduct, and continue the reaction for 3~ 4h, then gradually raise the temperature to 220~260℃, and then polycondense for 8~10h under the vacuum condition of 500~2000Pa;

[0031]The terpene resin is a product obtained by polymerizing one or more of turpentine, α-pinene, β-pinene, limonene and dipentene at -2...

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Abstract

The invention discloses a terpenyl ester hyperdispersant and a preparation method for the same. The preparation method comprises the following steps of feeding 100 parts by weight of terpene resin, 25 to 50 parts by weight of an alpha,beta-unsaturated compound and 0.1 to 1.5 parts by weight of a catalyst into a reaction kettle, slowly raising the temperature to 160 to 200 DEG C under the protection of nitrogen, performing reaction with stirring for 4 to 6h, adding 1 to 50 parts by weight of a modified carboxylation reagent and 20 to 60 parts by weight of dihydric alcohol, continuing performing reaction for 3 to 4h, then gradually raising the temperature to 220 to 260 DEG C, performing condensation polymerization reaction for 8 to 10h under the vacuum condition of 500 to 2,000Pa, and cooling to obtain the terpenyl ester hyperdispersant after reaction is finished. The hyperdispersant can be widely applied to the preparation and the dispersion of inorganic superfine powder.

Description

technical field [0001] The present invention generally relates to dispersants, in particular to a terpene-based ester hyperdispersant and a preparation method thereof. Background technique [0002] Due to its very small particle size, ultrafine powder has a large specific surface area and high specific surface energy, high surface activity, and there are strong van der Waals forces, hydrogen bonds, and chemical bonds between particles to attract each other. In an unstable system, it is easy to agglomerate, making the particles larger and unable to disperse uniformly in the matrix material, thus affecting the performance of its characteristics. Therefore, the agglomeration of ultrafine powder is an important problem that needs to be solved urgently in practical application. Using hyperdispersant to modify the surface of ultrafine powder is one of the important methods to solve agglomeration and improve its dispersion performance in matrix materials. The so-called hyperdispe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F277/00C08F222/02C08F222/06C08F222/14C08F222/16C08F8/14B01F17/52C08L23/06C08K9/04C08K3/26C09K23/52
Inventor 刘祖广王硕卢详雷福厚
Owner GUANGXI UNIV FOR NATITIES
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