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Preparation method of amino-modified anti-explosion material polyether polyamine

A polyether polyamine and amino modification technology is applied in the field of preparation of anti-knock material polyether polyamine, which can solve the problems of poor low temperature flexibility, decreased coating film strength, loss of bullet resistance and explosion resistance of materials, etc., to avoid low temperature flexibility. The effect of poor performance, reducing explosion impact damage, and improving the ability to resist gas explosion impact

Pending Publication Date: 2021-05-28
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

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 of the present invention provides a method for preparing an amino-modified anti-knock material polyether polyamine, the method comprising:

[0041] Step 1: Mix the nano-carbon raw material and the mixed acid at a mass percentage of 0.1:100, ultrasonically disperse evenly, stir at 60°C for 6-8 hours, and then wash with deionized water until pH=1. Add aniline and ammonium persulfate at a ratio of 0.8:1, stir at room temperature for 2 hours, then let stand for 12 hours, then wash with deionized water several times and filter with suction until the filtrate is neutral, and dry the product at 80°C to obtain the target product Composite materials of hydroxyl-modified nano-carbon and primary doped polyaniline.

[0042] Specifically, after adding aniline and ammonium persulfate at a ratio of 0.8:1 according to the molar mass percentage, aniline undergoes a polymerization reaction under the action of ammonium persulfate to generate polyaniline. During the synthesis ...

Embodiment 2

[0051] Based on the same inventive concept, Embodiment 2 of the present invention provides a method for preparing an amino-modified modified anti-knock material polyether polyamine, the method comprising:

[0052] Step 1: Mix the graphene raw material and the mixed acid at a mass percentage of 0.1:100, ultrasonically disperse evenly and stir at 60°C for 6-8 hours, then wash with deionized water until pH = 1, then the molar mass percentage is Add aniline and ammonium persulfate at a ratio of 0.8:1, stir at room temperature for 2 hours, then let stand for 12 hours, then wash with deionized water several times and filter with suction until the filtrate is neutral, and dry the product at 80°C to obtain the target product Composite materials of hydroxyl-modified graphene and primary doped polyaniline.

[0053] Specifically, after adding aniline and ammonium persulfate at a ratio of 0.8:1 according to the molar mass percentage, aniline is polymerized under the action of ammonium per...

Embodiment 3

[0069] Based on the same inventive concept, Embodiment 3 of the present invention provides a method for preparing an amino-modified modified anti-knock material polyether polyamine, the method comprising:

[0070]Step 1: Mix the graphene raw material and the mixed acid at a mass percentage of 0.1:100, ultrasonically disperse evenly and stir at 60°C for 6-8 hours, then wash with deionized water until pH = 1, then the molar mass percentage is Add aniline and ammonium persulfate at a ratio of 0.8:1, stir at room temperature for 2 hours, then let stand for 12 hours, then wash with deionized water several times and filter with suction until the filtrate is neutral, and dry the product at 80°C to obtain the target product Composite materials of hydroxyl-modified graphene and primary doped polyaniline.

[0071] Specifically, after adding aniline and ammonium persulfate at a ratio of 0.8:1 according to the molar mass percentage, aniline is polymerized under the action of ammonium pers...

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Abstract

The invention discloses a preparation method of an amino-modified anti-explosion material, namely polyether polyamine, belonging to the technical field of anti-corrosion and anti-explosion materials. According to the invention, hydroxyl groups and amino groups are introduced into a composite material formed by nanocarbon and polyaniline; in the process of introducing the hydroxyl groups and the amino groups into the composite material formed by the nanocarbon and the polyaniline, secondary doping and de-doping of polyaniline can be realized; then functionalized nanocarbon and a secondarily-doped polyaniline composite material are mixed with a polyurea elastomer material, the nanocarbon and the polyaniline composite material is functionalized in advance, and then the functionalized nanocarbon and polyaniline composite material is connected into the anti-explosion elastomer material in a physical dispersion-chemical reaction combined mode; and thus, the defect that the material is poor in low-temperature flexibility due to the fact that a hard segment content in a resin system is increased to reinforce the material is overcome, the material can be used for improving the gas explosion impact resistance of petrochemical enterprise buildings, and the explosion impact damage of the petrochemical enterprise buildings can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion and anti-explosion materials, in particular to a method for preparing an amino-modified anti-explosion material polyether polyamine. Background technique [0002] In recent years, the explosion-proof problem of personnel-concentrated places such as control rooms of petrochemical enterprises has attracted widespread attention. Polyurea elastomer has extremely high adhesion to substrates including metals and non-metals. After proper substrate treatment, it can be well combined with most materials, such as concrete, steel and aluminum, forming a layer and sandwich-like composite structures. [0003] Accidents in chemical companies in recent years have shown that Vapor Cloud Explosion (VCE) accidents caused by equipment leakage are extremely destructive, often causing a large number of casualties in concentrated places near the device. However, only a few of Sinopec's newly-built chemical ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/00C08L79/02C08K9/04C08K9/02C08K3/04C08G73/02
CPCC08L71/00C08G73/0266C08K2201/011C08L79/02C08K9/04C08K9/02C08K3/042C08K3/041
Inventor 杨小刚李斌
Owner QINGDAO UNIV OF SCI & TECH
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