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Flame-retardant fireproof epoxy coating and preparation method thereof

A technology of epoxy coatings and epoxy resins, which is applied in the direction of fireproof coatings, epoxy resin coatings, coatings, etc., and can solve the problems of large amount of added flame retardants, reduced flame retardant durability, and general flame retardant performance. , to achieve the effect of high yield, low cost and easy access to raw materials

Inactive Publication Date: 2020-09-11
徐松波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chlorinated paraffin is a chlorinated derivative of paraffin. It has the advantages of low volatility, flame retardancy, good barrier property, and low price. It can be used as additives such as plasticizers and flame retardants. It has been widely used in flame retardant materials. Medium (CN 104194573B and CN107083153B), but the amount of added flame retardant is relatively large, and the flame retardant performance is average
Added flame retardants tend to migrate out of the polymer network with extended use time, reducing the durability of flame retardancy

Method used

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  • Flame-retardant fireproof epoxy coating and preparation method thereof
  • Flame-retardant fireproof epoxy coating and preparation method thereof
  • Flame-retardant fireproof epoxy coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] (1) Preparation of carboxyl-containing chlorinated paraffin 42: Dissolve 20 g of chlorinated paraffin 42 in 210 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 28 g of potassium carbonate, and react at 55° C. for 30 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 42.

[0034] (2) Preparation of chlorinated paraffin 42 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 42 to the reaction kettle, add dropwise 85mol phosphorus trichloride, stir and heat up to 70°C, react for 4h, cool to room temperature, and stand to separate Layer to obtain chlorinated paraffin 42 containing acid chloride.

[0035] (3) Preparation of isocyanurate-modified chlorinated paraffin 42: add 100mol tris(2-hydroxyethyl)isocyanurate and an appropriate amount of acid...

Embodiment 2

[0039] (1) Preparation of carboxyl-containing chlorinated paraffin 52: Dissolve 20 g of chlorinated paraffin 52 in 220 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 29 g of potassium carbonate, and react at 80° C. for 10 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol. The product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 52.

[0040] (2) Preparation of chlorinated paraffin 52 containing acid chloride: add 70 mol of chlorinated paraffin 52 containing carboxyl to the reaction kettle, dropwise add 85 mol of phosphorus trichloride, stir and heat up to 50°C, react for 6 hours, cool to room temperature, let stand to separate layer to obtain the chlorinated paraffin 52 containing the acid chloride.

[0041] (3) Preparation of isocyanurate-modified chlorinated paraffin 52: add 100mol tris(2-hydroxyethyl)isocyanurate and an appropria...

Embodiment 3

[0045] (1) Preparation of carboxyl-containing chlorinated paraffin 70: Dissolve 20 g of chlorinated paraffin 70 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100°C for 5 hours to obtain carboxyl-containing chlorinated paraffin 70.

[0046] (2) Preparation of chlorinated paraffin 70 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 70 to the reaction kettle, add dropwise 85mol phosphorus trichloride, stir and heat up to 60°C, react for 5h, cool to room temperature, and stand to separate layer to obtain chlorinated paraffin 70 containing acid chloride.

[0047] (3) Preparation of isocyanurate-modified chlorinated paraffin 70: add 100mol tris (2-hydroxyethyl) isocyanurate and an appropriate amount of ...

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Abstract

The invention discloses an epoxy coating with flame-retardant and fireproof functions. The epoxy coating comprises epoxy resin with a flame-retardant function. The preparation method of the epoxy resin comprises the following steps: reacting chlorinated paraffin with p-hydroxybenzoic acid to prepare carboxyl-containing chlorinated paraffin; carrying out acylation on the carboxyl-containing chlorinated paraffin, and carrying out esterification reaction on the acylated carboxyl-containing chlorinated paraffin and tris(2-hydroxyethyl)isocyanurate to prepare hydroxyl-containing isocyanurate modified chlorinated paraffin; then, performing a reaction on chlorinated paraffin containing hydroxyl with tetrabromophthalic anhydride to prepare chlorinated paraffin diacid. The preparation method has the advantages that the operation is simple, the raw material source is wide, the reaction condition is mild, the industrial production is met, and the prepared epoxy resin has good flame-retardant andheat-resistant properties and wide application prospects.

Description

technical field [0001] The invention relates to a flame-retardant and fire-resistant epoxy coating and a preparation method thereof, belonging to the field of flame-retardant and fire-resistant coatings. Background technique [0002] With the development of material science, epoxy resin has been more and more widely used in people's production and life. Epoxy resin materials have many outstanding properties, such as good thermal stability, insulation, adhesion, corrosion resistance and good mechanical properties, and are widely used in electronics, electrical appliances and other fields, and become the most important material at present. One of the electronic chemical materials. However, epoxy resin materials are easy to burn in the air, which makes them a great safety hazard in use, and may cause great losses to life and property. In recent years, people have carried out a lot of and in-depth research on improving the flame retardancy of epoxy resin materials. [0003] C...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/18C08G59/12
CPCC08G59/12C09D5/18C09D163/00
Inventor 徐松波
Owner 徐松波
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