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Water-resistant flame-retardant epoxy resin curing agent and preparation method thereof

An epoxy resin curing and flame-retardant technology, applied in the field of curing agent, can solve the problems of insufficient water resistance and anti-corrosion performance

Inactive Publication Date: 2021-06-29
朱生寿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of insufficient water resistance and anti-corrosion performance of existing water-based epoxy coatings, as well as the technical problems of brittleness and flammability of epoxy resin, the present invention provides a coating with high water resistance, excellent anti-corrosion performance, high mechanical properties, and high flexibility. It also contains flame retardant elements and a water-based epoxy resin curing agent with good water dispersibility to improve the shortcomings of brittle epoxy resin, flammability and insufficient water resistance and anti-corrosion performance of water-based epoxy resin coatings

Method used

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  • Water-resistant flame-retardant epoxy resin curing agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A water-resistant flame-retardant epoxy resin curing agent is characterized in that it comprises the following raw materials: N-[(10-oxo-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl )methyl]-1,3,5-triazine-2,4,6-triamine, epoxy-terminated propylene glycol polyether, aliphatic amine, 1,4-bis(2′,3′-epoxypropyl ) perfluorobutane and alkyl acrylates.

[0026] Furthermore, the preparation method of the epoxy-terminated propylene glycol polyether includes the following steps: adding a solid superacid to the propylene glycol polyether, under nitrogen protection, slowly adding epichlorohydrin, and reacting for 2 hours at 60°C , filter, distill under reduced pressure, add potassium hydroxide, protect with nitrogen, react at 40°C for 6h, filter, neutralize with acetic acid solution, concentrate, and dry to obtain epoxy-terminated propylene glycol polyether.

[0027] Furthermore, the molar ratio of the propylene glycol polyether to epichlorohydrin is 1:2.5.

[0028] Further, ...

Embodiment 2

[0038] A water-resistant flame-retardant epoxy resin curing agent is characterized in that it comprises the following raw materials: N-[(10-oxo-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl )methyl]-1,3,5-triazine-2,4,6-triamine, epoxy-terminated propylene glycol polyether, aliphatic amine, 1,4-bis(2′,3′-epoxypropyl ) perfluorobutane and alkyl acrylates.

[0039] Furthermore, the preparation method of the epoxy-terminated propylene glycol polyether includes the following steps: adding a solid superacid to the propylene glycol polyether, under nitrogen protection, slowly adding epichlorohydrin, and reacting at 65°C for 2.5 h, filter, distill under reduced pressure, add potassium hydroxide, protect with nitrogen, react at 45°C for 6.5 h, filter, neutralize with acetic acid solution, concentrate, and dry to obtain epoxy-terminated propylene glycol polyether.

[0040] Furthermore, the molar ratio of the propylene glycol polyether to epichlorohydrin is 1:3.2.

[0041] Furthermo...

Embodiment 3

[0051] A water-resistant flame-retardant epoxy resin curing agent is characterized in that it comprises the following raw materials: N-[(10-oxo-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl )methyl]-1,3,5-triazine-2,4,6-triamine, epoxy-terminated propylene glycol polyether, aliphatic amine, 1,4-bis(2′,3′-epoxypropyl ) perfluorobutane and alkyl acrylates.

[0052] Furthermore, the preparation method of the epoxy-terminated propylene glycol polyether includes the following steps: adding a solid superacid to the propylene glycol polyether, under nitrogen protection, slowly adding epichlorohydrin, and reacting for 3 hours at 70°C , filter, distill under reduced pressure, add potassium hydroxide, protect with nitrogen, react for 7 hours at 50°C, filter, neutralize with acetic acid solution, concentrate, and dry to obtain epoxy-terminated propylene glycol polyether.

[0053] Furthermore, the molar ratio of the propylene glycol polyether to epichlorohydrin is 1:3.7.

[0054] Furt...

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Abstract

The invention belongs to the technical field of curing agents, and particularly relates to a water-resistant flame-retardant epoxy resin curing agent which is characterized by being prepared from the following raw materials: N-[(10-oxo-9,10-dihydro-9-oxa-10-phosphaphenanthren-10-yl)methyl]-1,3,5-triazine-2,4,6-triamine, epoxy-terminated propylene glycol polyether, aliphatic amine, 1,4-bis(2', 3'-epoxypropyl)perfluorobutane and alkyl acrylate. The invention also comprises a water-resistant flame-retardant epoxy resin curing agent. The water-borne epoxy resin curing agent provided by the invention has high water resistance, excellent corrosion resistance, high mechanical property and high flexibility, contains flame-retardant elements and has good water dispersibility, so that the defects of brittleness and inflammability of epoxy resin and insufficient water resistance and corrosion resistance of a water-borne epoxy resin coating are necessary to overcome.

Description

technical field [0001] The invention belongs to the technical field of curing agents, in particular to a water-resistant and flame-retardant epoxy resin curing agent and a preparation method thereof. Background technique [0002] Epoxy resin coating is currently the most widely used and most important coating in the world. It has strong anti-corrosion ability, strong adhesion, high hardness, wear resistance, salt spray resistance, acid and alkali resistance, high gloss and solid content. High, high fullness and other advantages. Therefore, it is widely used as industrial heavy-duty anti-corrosion paint, anti-rust primer, floor paint, oil tank paint, drinking water tank paint, etc. Epoxy resin coatings are generally divided into two types: solvent-based epoxy coatings and water-based epoxy coatings, but traditional solvent-based coatings contain about 50% organic solvents. A large amount of VOC is emitted in the atmosphere, which poses extremely serious pollution and threat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/50
CPCC08G59/5086
Inventor 朱生寿
Owner 朱生寿
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