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Preparation of polyhydroxy fatty acid and application of polyhydroxy fatty acid in nano calcium carbonate coating

A polyhydroxy fatty acid, nano calcium carbonate technology, applied in the preparation of carboxylates, the preparation of organic compounds, chemical instruments and methods, etc., to achieve the effect of increasing the contact area, reducing production costs, and good compatibility

Pending Publication Date: 2021-12-31
邢台德贵纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by this method is to overcome the above-mentioned technical defects and synthesize a kind of activating aid with low melting point, good water solubility and good low-temperature reaction activation. On the one hand, it can reduce the occurrence of pipeline blockage and reduce energy consumption. On the one hand, due to the introduction of hydroxyl groups, the application scope of the product in the fields of coatings and inks has been expanded

Method used

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  • Preparation of polyhydroxy fatty acid and application of polyhydroxy fatty acid in nano calcium carbonate coating
  • Preparation of polyhydroxy fatty acid and application of polyhydroxy fatty acid in nano calcium carbonate coating
  • Preparation of polyhydroxy fatty acid and application of polyhydroxy fatty acid in nano calcium carbonate coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) 9, the synthetic method of 10-dihydroxystearic acid

[0045] Add 100g of oleic acid and 63.04g of 88% formic acid supported by activated carbon into a three-port reactor, heat to 65°C, slowly add hydrogen peroxide and a compound solution of 60% methanol 73g dropwise, wherein the mass fraction of hydrogen peroxide is 30%, A total amount of 88g was added, stirred for 6h after the dropwise addition, and spin-dried under reduced pressure to obtain a light yellow oil phase 9,10-dihydroxystearic acid (DHSA), and the product was taken for infrared spectrum detection, as shown in figure 1 As shown, the result is displayed at 3336cm -1 There is a relatively obvious peak at the place, which belongs to the hydroxyl functional group in the molecular structure, so it can be judged that 9,10-dihydroxystearic acid has been synthesized.

[0046] (2) Application of 9,10-dihydroxystearic acid in nano-calcium carbonate coating

[0047] In a three-port reaction kettle, add 4.5g of 9,...

Embodiment 2

[0049] (1) 9,10,12,the synthetic method of 13-tetrahydroxystearic acid

[0050] Add 98.15g of linoleic acid in the three-port reactor, 63.04g of formic acid with a mass fraction of 88% supported by the resin, heat to 60°C, slowly add hydrogen peroxide and a compound solution with a mass fraction of 60% methanol 60g, wherein the mass fraction of hydrogen peroxide is It was 30%, and the total dosage was 88g. After the dropwise addition, it was stirred for 6 hours, and spin-dried under reduced pressure to obtain the light yellow oil phase 9,10,12,13-tetrahydroxystearic acid (THSA).

[0051] (2) Application of 9,10,12,13-tetrahydroxystearic acid in nano-calcium carbonate coating

[0052] In a three-port reaction kettle, add 4.5g of 9,10,12,13-tetrahydroxystearic acid and 2.14g of 6mol / L NaOH solution, mix well, heat to 65°C, and keep for 40min for saponification reaction to obtain polyhydroxystearin Sodium bicarbonate, in 6.64g polyhydroxy sodium fatty acid reaction solution, add 1...

Embodiment 3

[0054] (1) The synthetic method of 9,10,12,13,15,16-hexahydroxystearic acid

[0055] Add 97.44g of linolenic acid, 63.04g of 88% formic acid supported by the resin in a three-port reactor, heat to 60°C, slowly add hydrogen peroxide and a compound solution of 60% methanol 73g dropwise, wherein the hydrogen peroxide mass fraction is 30% , a total dosage of 97.44g, stirred for 6 hours after the dropwise addition, and spin-dried under reduced pressure to obtain the tan oil phase 9, 10, 12, 13, 15, 16-hexahydroxystearic acid.

[0056] (2) Application of 9, 10, 12, 13, 15, 16-hexahydroxystearic acid in nano-calcium carbonate coating

[0057] In a three-port reaction kettle, add 4.5g of 9,10,12,13-tetrahydroxystearic acid and 1.95g of 6mol / L NaOH solution, mix well, heat to 65°C, and keep for 40min for saponification reaction to obtain polyhydroxystearin Sodium acid, add 1065g of nano-calcium carbonate cooked slurry to 6.45g of polyhydroxysodium fatty acid reaction solution, mix eve...

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Abstract

The invention relates to a preparation method of polyhydroxy fatty acid and application of the polyhydroxy fatty acid in nano calcium carbonate coating, and belongs to the field of nano calcium carbonate activating auxiliaries; wherein, unsaturated fatty acid, formic acid and hydrogen peroxide or a hydrogen peroxide compound solution are subjected to a heating reaction to obtain polyhydroxy fatty acid, and the polyhydroxy fatty acid is saponified and then subjected to surface activation coating of nano calcium carbonate. The unsaturated fatty acid, the formic acid loaded by the carrier and the hydrogen peroxide compound solution react, wherein unsaturated double bonds are opened to generate polyhydroxy fatty acid, and the polyhydroxy fatty acid is subjected to nano calcium carbonate coating after saponification, so that the polyhydroxy fatty acid has the advantages of being good in water solubility, low in saponification product melting point and better in activation effect in hard water.

Description

technical field [0001] The invention relates to the field of nano-calcium carbonate activating aids, in particular to a method for synthesizing polyhydroxy fatty acid and its application as nano-calcium carbonate activating aids. Background technique [0002] Because of its ultra-fine size, nano-calcium carbonate has surface effect, quantum size effect, small size effect and macroscopic quantum tunneling effect, showing its superior performance. However, its surface is hydrophilic and oleophobic, which greatly limits its application. By treating the surface of nano-calcium carbonate, active nano-calcium carbonate is prepared, which reduces its surface energy, enhances lipophilicity, and can be well dispersed in organic matter. , to increase its compatibility with polymers. [0003] Active nano-calcium carbonate is widely used in adhesives, coatings, inks, plastics, rubber and other fields. As a reinforcing material, the requirements for the functional characteristics of nan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/367C07C59/105C09C1/02C09C3/08
CPCC07C51/367C09C1/021C09C3/08C01P2006/21C01P2006/90C07C59/105
Inventor 郭立杰王立明武绍英岑健伟李军和
Owner 邢台德贵纳米材料科技有限公司
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