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Preparation method of composite rare earth drier for oil paint

A compound rare earth and drier technology, applied in drier, chemical instruments and methods, etc., can solve problems such as environmental pollution, poor impact resistance, etc., achieve thorough reaction, promote paint film drying, and increase drying time Effect

Inactive Publication Date: 2017-05-10
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of a composite rare earth drier for paint, which can solve the problem of traditional composite drier drying time, paint film hardness, impact resistance, etc. Poor performance and serious environmental pollution problems

Method used

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  • Preparation method of composite rare earth drier for oil paint
  • Preparation method of composite rare earth drier for oil paint
  • Preparation method of composite rare earth drier for oil paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] C in the compound rare earth drier for paint of this embodiment O 2+ 、Ce 3+ , Mn 2+ , Zn 2+ The mass ratio of C is 7:50:5:3; C O 2+ 、Ce 3+ , Mn 2+ , Zn 2+ The sum of the mass is 4% of the total mass of the composite rare earth drier for paint.

[0045] The preparation method of cerium isooctanoate in this embodiment is as follows: mix cerium carbonate, organic mixed acid and No. 200 solvent gasoline, set the temperature at 145 ° C, stir for 4 hours, and reflux the solvent during the reaction process, wherein, cerium carbonate, organic mixed acid The mass ratio of solvent gasoline to No. 200 is 1:2.2:13.1; the mass ratio of isooctanoic acid and naphthenic acid in organic mixed acids is 1:1.

[0046] The preparation method of manganese isooctanoate is as follows: mix manganese carbonate, organic mixed acid, and No. 200 solvent gasoline, and stir for 90 minutes under the condition of 120°C to 150°C. During the reaction, the solvent is refluxed. Among them, mangane...

Embodiment 2

[0050] C in the compound rare earth drier for paint of this embodiment O 2+ 、Ce 3+ , Mn 2+ , Zn 2+ The mass ratio is 6:30:4:1.

[0051] In the preparation process of cerium isooctanoate in this example, the mass ratio of isooctanoic acid to naphthenic acid is 3:1.

[0052] In the preparation process of manganese isooctanoate in this example, the mass ratio of isooctanoic acid to naphthenic acid is 2.5:1.

Embodiment 3

[0054] C in the compound rare earth drier for paint of this embodiment O 2+ 、Ce 3+ , Mn 2+ , Zn 2+ The mass ratio is 8:40:6:2.

[0055] In the preparation process of cerium isooctanoate in this example, the mass ratio of isooctanoic acid to naphthenic acid is 2:1.

[0056] In the preparation process of manganese isooctanoate in this example, the mass ratio of isooctanoic acid to naphthenic acid is 3:1.

[0057] 6. Paint drying test:

[0058] The composite rare earth driers prepared in Example 1, Example 2 and Example 3 were respectively added to alkyd varnish and novolak varnish for application test. The dryness index of the experiment took the paint produced by a certain company as a sample, and measured it based on the technical indicators in GB / T25251-2010 "Alkyd Resin Coatings" and GB / T25253-2010 "Phenolic Resin Coatings". These two national standards It is required that the surface dry time of alkyd varnish is ≤5 hours, and the hard drying time is ≤15 hours; the su...

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Abstract

The invention discloses a preparation method of a composite rare earth drier for oil paint and relates to a drier for chemical industry. The composite rare earth drier is prepared by mixing cerium isooctanoate, manganese isoocatanoate, zinc isoocatanoate and cobalt isoocatanoate. The four substances realize a synergistic effect to promote the drying of a paint film by using an oxidation and polymerization reaction mechanism. The composite rare earth drier disclosed by the invention is used for coatings such as alkyd color lacquer, phenolic color lacquer and antirust paint; technical indicators such as drying time of the oil paint, the hardness of the paint film, impact resistance and crust property are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of drier for chemical industry, in particular to a preparation method of composite rare earth drier for paint. Background technique [0002] Most of the traditional composite driers for paints contain organic acid soaps of cobalt, lead, manganese, calcium, zinc, iron and vanadium. However, there are many shortcomings in the traditional driers system. For example, manganese soaps are not suitable for light colors. Coatings; cobalt soap is expensive and cobalt resources are in short supply, and cobalt is used alone or in too much amount, which will cause the surface of the paint film to dry and shrink quickly, resulting in wrinkled skin and defects of softness due to the dry bottom, especially its strong The catalytic oxidation property of the paint film promotes premature aging and brittleness of the paint film; the low drying activity of lead soap and the large dosage affect the drying time of the composite ...

Claims

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Application Information

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IPC IPC(8): C09F9/00
CPCC09F9/00
Inventor 罗建平王维熙梁建新
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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