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A kind of amide modified hydrogenated castor oil anti-sedimentation agent and preparation method thereof

A hydrogenated castor oil, amide modification technology, applied in the direction of coating and the like, can solve problems such as thickening and agglomeration, false thickening, etc., and achieve the effects of convenient operation control, simple steps and low production cost

Active Publication Date: 2020-12-29
东莞市隆海新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide an amide-modified hydrogenated castor oil anti-settling agent, which solves the problem of returning coarseness due to temperature problems. Agglomeration, false thickening, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An amide-modified hydrogenated castor oil anti-settling agent is composed of the following raw materials in parts by weight:

[0030] 30 parts hydrogenated castor oil

[0031] Acidifier 10 parts

[0032] Organic amine 5 parts.

[0033] The acidifying agent is a polybasic anhydride, and the polybasic anhydride is pyromellitic anhydride, phthalic anhydride, maleic anhydride, succinic anhydride or trimellitic anhydride.

[0034] The organic amine is an alkyl primary amine.

[0035] The structural formula of the alkyl primary amine is CH 3 -(CH 2 ) n -NH 2 , where n is 0.

[0036] A kind of preparation method of amide modified hydrogenated castor oil anti-settling agent, comprises the steps:

[0037] (1) Add hydrogenated castor oil and acidulant to the reactor and heat for reaction;

[0038] (2) Add organic amine to the reactor to heat up the reaction, then slowly evacuate to 0.1MPa, keep it for 0.5h, remove the vacuum and cool down to 130°C to discharge, and cool ...

Embodiment 2

[0043] An amide-modified hydrogenated castor oil anti-settling agent is composed of the following raw materials in parts by weight:

[0044] 35 parts hydrogenated castor oil

[0045] Acidifier 20 parts

[0046] Organic amine 10 parts.

[0047] The acidifying agent is a polybasic acid anhydride, and the polybasic acid anhydride is tetrahydrophthalic anhydride, polyazelaic anhydride, polysebacic anhydride or cyclopentanetetracarboxylic dianhydride.

[0048] The organic amine is an aromatic primary amine.

[0049] The aromatic primary amine is p-toluidine or phenethylamine.

[0050] A kind of preparation method of amide modified hydrogenated castor oil anti-settling agent, comprises the steps:

[0051] (1) Add hydrogenated castor oil and acidulant to the reactor and heat for reaction;

[0052] (2) Add organic amine to the reactor to heat up the reaction, then slowly evacuate to 0.1MPa, keep it for 0.8h, remove the vacuum and cool down to 132°C to discharge, and cool to obtai...

Embodiment 3

[0057] An amide-modified hydrogenated castor oil anti-settling agent is composed of the following raw materials in parts by weight:

[0058] 45 parts hydrogenated castor oil

[0059] Acidifier 35 parts

[0060] 30 parts of organic amines.

[0061] The acidulant is a mixture of maleic anhydride and succinic anhydride in a weight ratio of 1:21.

[0062] The organic amines are primary alkyl amines and primary aryl amines.

[0063] The structural formula of the alkyl primary amine is CH 3 -(CH 2 ) n -NH 2 , where n is 10.

[0064] A kind of preparation method of amide modified hydrogenated castor oil anti-settling agent, comprises the steps:

[0065] (1) Add hydrogenated castor oil and acidulant to the reactor and heat for reaction;

[0066](2) Add an organic amine to the reactor to heat up the reaction, then slowly evacuate to 0.1MPa, keep for 0.8h, remove the vacuum and cool down to 135°C to discharge, and cool to obtain a blocky solid;

[0067] (3) Crush the massive s...

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Abstract

The invention relates to the technical field of coating additives and particularly relates to an amide modified hydrogenated castor oil anti-settling agent and a preparation method thereof. The anti-settling agent comprises the following raw materials in parts by weight: 30-70 parts of hydrogenated castor oil, 10-50 parts of an acidifying agent and 5-60 parts of organic amine. According to the anti-settling agent, the phenomena such as pig skin, clotting, false thickening and the like caused by a temperature problem are avoided, the usable occasion and range of the hydrogenated castor oil can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of coating additives, in particular to an amide-modified hydrogenated castor oil anti-settling agent and a preparation method thereof. Background technique [0002] In the current coating production process, more and more advanced equipment is used to improve the production efficiency of coatings and inks. While improving production efficiency, it is inevitable that a large amount of mechanical heat will be generated, which often leads to processing temperatures higher than ordinary anti-settling agents. 1. The temperature range of use of the thickener, therefore, it is necessary to develop an amide-modified hydrogenated castor oil anti-settling thickener. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide an amide-modified hydrogenated castor oil anti-settling agent, which solves the problem of retur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/45
Inventor 董清龙巴于磊
Owner 东莞市隆海新材料科技有限公司
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