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A kind of quick-drying quick-flammable sealing glue and its preparation method and application

A technology of sealing glue and drier, applied in the direction of adhesive types, non-polymer adhesive additives, starch adhesives, etc. The effect of increasing strength, not easy to return to moisture, and improving the application effect

Active Publication Date: 2020-11-24
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of sealing material comes from a wide range of sources and is cheap, its performance is unstable and its safety is poor. Especially when it is detonated, it will produce a large amount of soil powder and fragments, which not only cause serious pollution to the environment, but also have the potential safety hazard of shooting and hurting people.
In addition, the strong hygroscopicity of clay will prolong the curing time and lead to the deterioration and failure of fireworks products during storage
The dry powder sealant developed in recent years uses magnesium chloride, magnesium oxide, etc. as the main raw materials, which have the advantages of fast solidification, high strength, and good stability. However, because it will form magnesium nitrate with strong hygroscopicity with nitrate agents, Not to be used as closures or bottom plugs for nitrate-based fireworks products
Moreover, the dry powder sealant is mainly composed of non-combustible materials, which will also produce a large amount of smoke and dust after explosion, causing air pollution

Method used

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  • A kind of quick-drying quick-flammable sealing glue and its preparation method and application
  • A kind of quick-drying quick-flammable sealing glue and its preparation method and application
  • A kind of quick-drying quick-flammable sealing glue and its preparation method and application

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Effect test

Embodiment 1

[0035] A quick-drying and quick-burning sealing glue of the present invention, the raw materials of the quick-drying and quick-burning sealing glue include: 35g of cornstarch, 45g of hydrogen peroxide, 6g of aluminum sulfate, 10g of sodium bicarbonate, and 3g of gypsum.

[0036] A preparation method of the quick-drying and quick-burning type sealant of this embodiment, the schematic diagram of its technological process is as follows figure 1 shown, including the following steps:

[0037] (1) Disperse 35g of cornstarch in 45g of 30% hydrogen peroxide to form a suspension, carry out oxidation treatment, the oxidation treatment is carried out under the condition of heating in a water bath, the control temperature is 45°C, and the time is 120min, during the oxidation treatment process Supplemented by stirring, the stirring rate is 120r·min -1 , obtain suspension slurry;

[0038] (2) Raise the temperature of the water bath to 65°C, and control the stirring rate at 60r·min -1, ad...

Embodiment 2

[0041] A quick-drying and quick-burning sealing glue of the present invention, the raw materials of the quick-drying and quick-burning sealing glue include: 33g of potato starch, 48g of hydrogen peroxide, 7g of aluminum sulfate, 10g of sodium bicarbonate, and 5g of gypsum.

[0042] A preparation method of the quick-drying quick-burning type sealant of the present embodiment, comprises the following steps:

[0043] (1) Disperse 33g of potato starch in 48g of mass concentration of 30% hydrogen peroxide to form a suspension, carry out oxidation treatment, the oxidation treatment is carried out under water bath heating conditions, the control temperature is 45 ℃, and the time is 90min, during the oxidation treatment process Supplemented by stirring, the stirring rate is 150r·min -1 , obtain suspension slurry;

[0044] (2) Raise the temperature of the water bath to 60°C, and control the stirring rate at 90r·min -1 , add 7g of aluminum sulfate and 10g of sodium bicarbonate to the ...

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Abstract

The invention provides a quick-drying and quick-burning type sealing compound and a preparing method and application thereof. The sealing compound is prepared from, by weight, 33-35 parts of starch substrate, 45-48 parts of oxidizing agent, 16-17 parts of foaming agent and 3-5 parts of drier. The preparing method includes the following steps of firstly, dispersing the starch substrate in the oxidizing agent for oxidizing treatment to obtain suspension slurry; secondly, raising the temperature of the suspension slurry, sequentially adding the forming agent and the drier to the suspension slurry, and continuing to conduct stirring till the slurry is gelatinized into rubber to obtain the quick-drying and quick-burning type sealing compound. The sealing compound can be rapidly sized after being poured in a tube opening of a firecracker, the requirements of opening sealing and solid leading are met, and a foam type high-polymer-based composite easy to combust is formed after curing; compared with a traditional pug sealing compound, the drying time is shortened from 24-48 h to 12-18 h, and damping can hardly happen after drying.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a fast-drying and fast-burning sealing glue for fireworks and firecrackers, a preparation method and application thereof. Background technique [0002] Sealing agent is an important auxiliary material in the production of fireworks and firecrackers. Its main function is to seal the port and fix the lead. The traditional sealing agent uses clay, cement, silica sand, etc. as the main raw materials to seal the vents and bottoms of spray flowers, rockets, beads, and firecrackers. Although this kind of sealing material comes from a wide range of sources and is cheap, its performance is unstable and its safety is poor. Especially when it is detonated, it will produce a large amount of soil powder and fragments, which not only cause serious pollution to the environment, but also have the potential safety hazard of shooting and hurting people. . In addition, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/02C09J11/04
CPCC08K2003/3045C08K2003/3081C08L2201/02C09J11/04C09J103/02C08K3/30
Inventor 刘鹏王粲徐贺管权刘其城关皓楼雪纯张傲
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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