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Preparation method of flame-retardant high-performance flexible explosion-proof coating

A high-performance, flame-retardant technology, used in coatings, fire-retardant coatings, polyurea/polyurethane coatings, etc., can solve the problems of flame retardancy, physical properties, physical properties, and viscosity of materials. The effect of excellent mechanical properties, improved interface properties, and good process performance

Pending Publication Date: 2022-02-15
师海峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of a large number of additive flame retardants leads to an increase in the viscosity of the material and a decrease in physical properties after curing
With the extension of time, the precipitation of additive additives and phase separation from the resin components lead to a downward trend in the flame retardancy and physical properties of the material
Phosphorus-containing polymers emit high heat during combustion. Although they have flame-retardant effects, they have relatively limited applications in explosion-proof situations.

Method used

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  • Preparation method of flame-retardant high-performance flexible explosion-proof coating
  • Preparation method of flame-retardant high-performance flexible explosion-proof coating
  • Preparation method of flame-retardant high-performance flexible explosion-proof coating

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preparation example Construction

[0043] A method for preparing a flame-retardant high-performance flexible explosion-proof coating, comprising the steps of:

[0044] Step 1: Prepare component A, modify the isocyanate in an inert environment, the method is to heat the polyether resin to 100 ℃ ~ 110 ℃, dehydrate under vacuum -0.1MPa for 2 ~ 3 hours, release the vacuum, and cool down to 60 ℃ Next, add isocyanate and react at 85-95°C for 1.5-2 hours. After the reaction is over, measure the -NCO value and discharge the material, and filter to obtain component A of flame-retardant modified isocyanate; wherein: the mass ratio of isocyanate and polyether resin is 150-250: 50-100.

[0045] Step 2: Component B consists of amino-terminated polyether 5-10, polyol 20-50, flame retardant 10-20, powder flame retardant 5-10, coupling agent 1-5, chain extender 10-30 , Catalyst 1-5, water remover 1-5 and color paste 1-5 are stirred and composed, added in sequence, stirred and dispersed evenly, and obtained by filtration.

[...

Embodiment 2

[0059] The preparation process of a flame-retardant high-performance flexible explosion-proof coating in this embodiment is as follows:

[0060] Step 1: Synthesis of component A of flame-retardant high-performance flexible explosion-proof coating material:

[0061] According to the weight ratio, put 100 parts of bisphenol A polyether polyol BEO-10 ​​into a reactor protected by nitrogen, heat it to 105°C under stirring, dehydrate it under vacuum -0.1MPa for 2 hours, release the vacuum, and cool down to Add 100 parts of IPDI below 60°C, and react at 100°C for 2 hours. After the reaction is completed, measure the -NCO value to 21%, discharge, filter and pack.

[0062] Step 1: Preparation of component B:

[0063] Weigh each component according to the order of the formula, 20 parts of amino-terminated polyether D2000, 30 parts of PCL210, 20 parts of FR712, 10 parts of SFR-100, 2 parts of silane coupling agent KH550, 15 parts of chain extender ADR-4368C, 5 parts 1 part of chain ex...

Embodiment 3

[0065] The preparation process of a flame-retardant high-performance flexible explosion-proof coating in this embodiment is as follows:

[0066] Step 1: Synthesis of component A of flame-retardant high-performance flexible explosion-proof coating material:

[0067] According to the weight ratio, put 10 parts of phthalic anhydride polyester polyol PS-3152 and 60 parts of bisphenol A polyether polyol BEO-20 into the reactor with nitrogen protection, heat to 105 ° C under stirring, and vacuum -0.1MPa Dehydrate at low temperature for 2 hours, remove the vacuum, lower the temperature to below 60°C, add 100 parts of TDI, react at 100°C for 2 hours, after the reaction, measure the -NCO value to 21%, discharge, filter and pack.

[0068] Step 2: Preparation of component B:

[0069] Weigh each component according to the order of the formula, 5 parts of amino-terminated polyether T5000, 30 parts of PTMG1000, 20 parts of FR1301, 10 parts of RM4-7081, 2 parts of silane coupling agent KH55...

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Abstract

The invention discloses a preparation method of a flame-retardant high-performance flexible explosion-proof coating, which comprises a step 1, preparing a component A: modifying isocyanate, polyether resin and phthalic anhydride polymer polyol in an inert environment, namely dehydrating the isocyanate, the polyether resin and the phthalic anhydride polymer polyol at 100-110 DEG C under the vacuum of -0.1 MPa for 2-3 hours, relieving the vacuum, cooling to below 60 DEG C, adding isocyanate, reacting at 85-95 DEG C for 1.5-2 hours, measuring the -NCO value after the reaction is finished, discharging, and filtering to obtain the flame-retardant modified component A. An epoxy group and an isocyanate group are introduced into the coating prepared by the preparation method disclosed by the invention. The heat resistance of the coating is further improved on the basis that the epoxy has the advantages of good processing property, excellent mechanical property, interface property and the like. Polyether amine reacts with epoxy and isocyanate, polyether and the reactive flame retardant react with isocyanate to form a multi-dimensional network structure in a system, so that the excellent flame-retardant and explosion-proof performance of the coating is ensured.

Description

technical field [0001] The invention relates to the technical field of protective materials, in particular to a method for preparing a flame-retardant high-performance flexible explosion-proof coating. Background technique [0002] Recently, the research on high-efficiency damage and protection technology is very popular. Various types of explosion-proof materials are in great demand in the market. Organic flexible polymer materials have high physical properties and can effectively block the destructive effects of explosives when they explode. It has a strong resistance to explosion fragments and shock waves, thereby minimizing the damage to people and objects near the explosion center. It is more and more widely used in explosion-proof boxes, explosion-proof doors, explosion-proof safe houses, and underground bunkers. [0003] Existing explosion-proof materials are mainly made of rubber, ultra-high molecular weight polyethylene, aramid fiber, etc. These materials are prepar...

Claims

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Application Information

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IPC IPC(8): C09D175/12C08G18/42C08G18/48C08G18/50C08G18/61C09D5/18
CPCC09D175/12C09D5/18C08G18/482C08G18/5021C08G18/4018C08G18/4208C08G18/61
Inventor 师海峰
Owner 师海峰
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