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Preparation method of hydroxyl modified anti-explosion material prepolymer

A modification modification and prepolymer technology, applied in the field of preparation of hydroxyl modified antiknock material prepolymer, can solve the problems of decreased coating strength, material loss of bullet resistance and explosion resistance, poor low temperature flexibility, etc. Reduce explosion impact damage, improve resistance to gas explosion impact, and avoid the effect of low temperature flexibility of materials

Pending Publication Date: 2021-04-27
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if too much filler is added, the explosion-proof material will easily cause the filler to separate from the resin under high-speed impact, which is manifested by a sharp drop in the strength of the coating film under high-speed impact; although increasing the hard segment content of the resin increases the strength of the material, its hardness is also greatly improved. As a result, the low-temperature flexibility of the material deteriorates, and the material loses the effect of anti-ballistic and explosion-proof in low-temperature environments

Method used

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Examples

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Effect test

Embodiment 1

[0040]An embodiment of the present invention provides a method of preparing a hydroxymatically modified anti-proof material prepolymer, including:

[0041]Step 1: Mix the nanocarbon raw material and mixed acid according to the mass percentage of 0.1: 100, and stirred at 60 ° C for 6 to 8 h after ultrasonic dispersion, after washing with deionized water, washed to pH = 1, according to the percentage of moles The ratio of 0.8: 1 is added to ammine and stirring at normal temperature for 2 h after standing for 12 h, then washed with deionized water and washed and filtered until the filtrate was neutral, and the product was dried at 80 ° C to obtain a target product. Composite of hydroxymine and primary doped polyaniline.

[0042]Specifically, when aniline is added to the proportion of osaniline and ammonium sulfate, aniline is polymerized to form polyaniline under the action of ammonium sulfate, and the nanocarbon can be consumed in the process of polyaniline synthesis. Hydrogen ion h in mixe...

Embodiment 2

[0051]Based on the same inventive concept, Embodiment 2 of the present invention provides a method for preparing a hydroxy-proof material prepolymer, including:

[0052]Step 1: Mix the graphene raw material with the mixture of 0.1: 100 in accordance with the mass of 0.1: 100, and the ultrasonic dispersion is mixed at 60 ° C for 6 to 8 h, after the water washing with deionized water, washed to pH = 1, according to the moisture mass percentage The ratio of 0.8: 1 is added to ammine and stirring at normal temperature for 2 h after standing for 12 h, then washed with deionized water and washed and filtered until the filtrate was neutral, and the product was dried at 80 ° C to obtain a target product. Composite of hydroxyl modified graphene and primary doped polyaniline.

[0053]Specifically, when aniline is added to the molar mass of 0.8: 1, aniline is added to the ammonium sulfate, and the polymerization is polymerized to form polyaniline under the action of ammonium sulfate, and the graphen...

Embodiment 3

[0069]Based on the same inventive concept, the third embodiment of the present invention provides a method of preparing a hydroxy-prepared anti-proof material prepolymer, including:

[0070]Step 1: Mix the graphene raw material with the mixture of 0.1: 100 in accordance with the mass of 0.1: 100, and the ultrasonic dispersion is mixed at 60 ° C for 6 to 8 h, after the water washing with deionized water, washed to pH = 1, according to the moisture mass percentage The ratio of 0.8: 1 is added to ammine and stirring at normal temperature for 2 h after standing for 12 h, then washed with deionized water and washed and filtered until the filtrate was neutral, and the product was dried at 80 ° C to obtain a target product. Composite of hydroxyl modified graphene and primary doped polyaniline.

[0071]Specifically, when aniline is added to the molar mass of 0.8: 1, aniline is added to the ammonium sulfate, and the polymerization is polymerized to form polyaniline under the action of ammonium sul...

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Abstract

The invention discloses a preparation method of a hydroxyl modified anti-explosion material prepolymer, belongs to the technical field of anti-corrosion and anti-explosion materials, and aims to improve the corrosion resistance of the anti-explosion material prepolymer by introducing hydroxyl into a composite material formed by nano carbon and polyaniline and introducing the hydroxyl into the composite material formed by the nano carbon and the polyaniline. Secondary doping and dedoping of polyaniline can be realized, and then the functionalized nano carbon and secondary doped polyaniline composite material is mixed with a polyurea elastomer material; the preparation method comprises the following steps: functionalizing a nano-carbon and polyaniline composite material in advance, and inoculating the functionalized nano-carbon and polyaniline composite material into an anti-explosion elastomer material in a manner of combining physical dispersion and chemical reaction. The defect of poor low-temperature flexibility of the material due to the fact that the material is reinforced by increasing the content of hard segments in a resin system is avoided, the method can be used for improving the gas explosion impact resistance of petrochemical enterprise buildings, and explosion impact damage to the petrochemical enterprise buildings can be effectively reduced.

Description

Technical field[0001]The present invention relates to the technical field of anti-corrosion explosion-proof materials, and more particularly to a method for preparing a hydroxy-modified anti-proof material prepolymer.Background technique[0002]In recent years, the explosion-proof problems in the concentrated place of the Petrochemical Enterprise Control Room have aroused extensive attention. The polyurea elastomer has a very high adhesion of the substrate including metal and non-metallic, and after proper substrate treatment, it can be combined with most materials, such as concrete, steel and aluminum, forming layers. And sandwich composite structures.[0003]In recent years, the accidents occurring in chemical enterprises showed that the evaporation of the steam cloud explosion (VCE) accidents caused by equipment leakage, often resulting in a large number of casualties in the nearby personnel. However, China Petrochemical has only a few new chemical enterprises or devices considered t...

Claims

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Application Information

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IPC IPC(8): C08L79/02C08L75/02C08K3/04
CPCC08L79/02C08L75/02C08K2201/011C08K9/04C08K3/042C08K3/041
Inventor 杨小刚李斌
Owner QINGDAO UNIV OF SCI & TECH
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