Composite powder explosion suppressant based on modified montmorillonite powder and preparation method of composite powder explosion suppressant

Abstract

The invention belongs to the field of explosion suppressants, and relates to a composite powder explosion suppressant based on modified montmorillonite powder and a preparation method of the composite powder explosion suppressant. The composite powder explosion suppressant comprises the components in percentage by weight: 60.6%-76.8% of the modified montmorillonite powder, 6.4%-14.9% of aluminum triphosphate, 5.6%-13.8% of zinc borate, 3.5%-7.3% of tetrabromobisphenol, 2.8%-5.2% of antimony trioxide, 2.3%-5.6% of perlite powder and 2.1%-4.5% of hydrophobic fumed silica. The composite powder explosion suppressant based on the modified montmorillonite powder prepared by the preparation method has the characteristics of good explosion suppression effect, environmental friendliness, fineness, uniformity, good fluidity and the like, and the adopted preparation method is simple to operate, small in pollution and easy to realize industrial production.

Description

technical field

[0001] The invention belongs to the field of antiknock agents, and relates to a composite powder antiknock agent based on modified montmorillonite powder and a preparation method thereof. Background technique

[0002] In the process of industrial production, due to the complexity of the production environment and the limitation of the function of the existing single powder anti-knocking agent, there is no efficient and widely used powder anti-knocking agent. Functional modification of powder materials can improve its fire extinguishing and explosion suppression performance, and the synergistic effect of various powder compounding can also improve its explosion suppression effect.

[0003] As a natural mineral, montmorillonite has a loose structure, a large specific surface area, and can absorb a large amount of heat. It is a good choice as an explosion suppression powder. According to the research of many scholars in the past, the explosion suppression effec...

Examples

Embodiment 1

[0028] The composite powder antiknock agent based on modified montmorillonite powder in the present embodiment, its raw material percentage by weight is: modified montmorillonite powder 63.3%, aluminum tripolyphosphate 7.2%, zinc borate 6.3%, tetrabromobis 4.0% phenol, 2.9% antimony trioxide, 2.4% perlite powder, 2.6% hydrophobic fumed silica.

[0029] Wherein, the modified montmorillonite powder is prepared by the following method: Weigh a certain amount of montmorillonite powder, add concentrated sulfuric acid to acidify in a water bath at 70°C, wash with deionized water until neutral, and obtain acidified montmorillonite powder, drying, and then using an aluminate coupling agent (distearoyloxyisopropyl aluminate) to modify the acidified montmorillonite powder to obtain the modified montmorillonite powder.

[0030] The preparation method of the composite powder explosion suppressing agent based on modified montmorillonite powder is as follows:

[0031] Step 1. Put the modif...

Embodiment 2

[0036] The composite powder antiknock agent based on modified montmorillonite powder in the present embodiment, its raw material percentage by weight is: modified montmorillonite powder 68.7%, aluminum tripolyphosphate 10.7%, zinc borate 9.7%, tetrabromobis Phenol 5.4%, antimony trioxide 4.0%, perlite powder 4.0%, hydrophobic fumed silica 3.3%.

[0037] Wherein, the modified montmorillonite powder is prepared by the following method: Weigh a certain amount of montmorillonite powder, add concentrated sulfuric acid to acidify in a water bath at 70°C, wash with deionized water until neutral, and obtain acidified montmorillonite powder, drying, and then using an aluminate coupling agent (distearoyloxyisopropyl aluminate) to modify the acidified montmorillonite powder to obtain the modified montmorillonite powder.

[0038] The preparation method of the composite powder explosion suppressing agent based on modified montmorillonite powder is as follows:

[0039] Step 1. Put the modi...

Embodiment 3

[0044] The composite powder antiknock agent based on modified montmorillonite powder in the present embodiment, its raw material percentage by weight is: modified montmorillonite powder 73.4%, aluminum tripolyphosphate 13.5%, zinc borate 12.4%, tetrabromobis Phenol 6.9%, antimony trioxide 5.1%, perlite powder 5.6%, hydrophobic fumed silica 4.5%.

[0045] Wherein, the modified montmorillonite powder is prepared by the following method: Weigh a certain amount of montmorillonite powder, add concentrated sulfuric acid to acidify in a water bath at 70°C, wash with deionized water until neutral, and obtain acidified montmorillonite powder, drying, and then using an aluminate coupling agent (distearoyloxyisopropyl aluminate) to modify the acidified montmorillonite powder to obtain the modified montmorillonite powder.

[0046] The preparation method of the composite powder explosion suppressing agent based on modified montmorillonite powder is as follows:

[0047] Step 1. Put the mod...

technical field

[0001] The invention belongs to the field of antiknock agents, and relates to a composite powder antiknock agent based on modified montmorillonite powder and a preparation method thereof. Background technique

[0002] In the process of industrial production, due to the complexity of the production environment and the limitation of the function of the existing single powder anti-knocking agent, there is no efficient and widely used powder anti-knocking agent. Functional modification of powder materials can improve its fire extinguishing and explosion suppression performance, and the synergistic effect of various powder compounding can also improve its explosion suppression effect.

[0003] As a natural mineral, montmorillonite has a loose structure, a large specific surface area, and can absorb a large amount of heat. It is a good choice as an explosion suppression powder. According to the research of many scholars in the past, the explosion suppression effec...

Examples

Embodiment 1

[0028] The composite powder antiknock agent based on modified montmorillonite powder in the present embodiment, its raw material percentage by weight is: modified montmorillonite powder 63.3%, aluminum tripolyphosphate 7.2%, zinc borate 6.3%, tetrabromobis 4.0% phenol, 2.9% antimony trioxide, 2.4% perlite powder, 2.6% hydrophobic fumed silica.

[0029] Wherein, the modified montmorillonite powder is prepared by the following method: Weigh a certain amount of montmorillonite powder, add concentrated sulfuric acid to acidify in a water bath at 70°C, wash with deionized water until neutral, and obtain acidified montmorillonite powder, drying, and then using an aluminate coupling agent (distearoyloxyisopropyl aluminate) to modify the acidified montmorillonite powder to obtain the modified montmorillonite powder.

[0030] The preparation method of the composite powder explosion suppressing agent based on modified montmorillonite powder is as follows:

[0031] Step 1. Put the modif...

Embodiment 2

[0036] The composite powder antiknock agent based on modified montmorillonite powder in the present embodiment, its raw material percentage by weight is: modified montmorillonite powder 68.7%, aluminum tripolyphosphate 10.7%, zinc borate 9.7%, tetrabromobis Phenol 5.4%, antimony trioxide 4.0%, perlite powder 4.0%, hydrophobic fumed silica 3.3%.

[0037] Wherein, the modified montmorillonite powder is prepared by the following method: Weigh a certain amount of montmorillonite powder, add concentrated sulfuric acid to acidify in a water bath at 70°C, wash with deionized water until neutral, and obtain acidified montmorillonite powder, drying, and then using an aluminate coupling agent (distearoyloxyisopropyl aluminate) to modify the acidified montmorillonite powder to obtain the modified montmorillonite powder.

[0038] The preparation method of the composite powder explosion suppressing agent based on modified montmorillonite powder is as follows:

[0039] Step 1. Put the modi...

Embodiment 3

[0044] The composite powder antiknock agent based on modified montmorillonite powder in the present embodiment, its raw material percentage by weight is: modified montmorillonite powder 73.4%, aluminum tripolyphosphate 13.5%, zinc borate 12.4%, tetrabromobis Phenol 6.9%, antimony trioxide 5.1%, perlite powder 5.6%, hydrophobic fumed silica 4.5%.

[0045] Wherein, the modified montmorillonite powder is prepared by the following method: Weigh a certain amount of montmorillonite powder, add concentrated sulfuric acid to acidify in a water bath at 70°C, wash with deionized water until neutral, and obtain acidified montmorillonite powder, drying, and then using an aluminate coupling agent (distearoyloxyisopropyl aluminate) to modify the acidified montmorillonite powder to obtain the modified montmorillonite powder.

[0046] The preparation method of the composite powder explosion suppressing agent based on modified montmorillonite powder is as follows:

[0047] Step 1. Put the mod...

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