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A low-combustion temperature and low-residue gas generating agent and its preparation method

A gas generating agent, low-residue technology, applied in the production of compressed gas, attack equipment, non-explosive/non-thermal agent components, etc., can solve the problems of low burning rate and can not meet the requirements of use

Active Publication Date: 2020-10-23
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The new power plant requires a gas generating agent formula with low combustion temperature, high burning rate, low residue and large gas production. The current high burning rate gas generating agent has a high residue content (above 10%) and a low burning rate (below 30mm / s ), which cannot meet the use requirements of the new generation of weapon models

Method used

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  • A low-combustion temperature and low-residue gas generating agent and its preparation method
  • A low-combustion temperature and low-residue gas generating agent and its preparation method
  • A low-combustion temperature and low-residue gas generating agent and its preparation method

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preparation example Construction

[0034] The embodiment of the present invention also provides a method for preparing a low-combustion temperature and low-residue gas generating agent, comprising the following steps:

[0035] Step 1. Weigh raw materials according to the following mass percentages: 7.5% to 25% of adhesive, 0.5% to 4% of curing agent, 3% to 20% of nitrate plasticizer, 20% to 60% of oxidant, and 20% of cooling agent %~60%, combustion regulator 0~5%;

[0036] Step 2, mixing the weighed raw materials to prepare a slurry;

[0037] Step 3, pouring and solidifying the slurry to obtain a gas generating agent.

[0038] The raw material of the embodiment of the method of the present invention is provided by the embodiment of the gas generating agent. For the specific description, please refer to the above embodiment, which will not be repeated here.

[0039] Specifically, in the step 2, the weighed raw materials are put into a vertical mixer for mixing, the mixing temperature is 50° C. to 70° C., and t...

Embodiment 1

[0043] (1) The solid propellant formula is as shown in Table 1:

[0044] The solid propellant formula that table 1 embodiment 1 provides:

[0045]

[0046] (2) Solid propellant production method:

[0047] Step 1: Weigh raw materials according to the formula provided in Table 1, and

[0048] Step 2. Put the weighed raw materials into a vertical mixer, and mix for 70 minutes at a temperature of 50° C. to prepare a slurry;

[0049] Step 3. The slurry was poured into a mold by vacuum spraying, and then cured at 60° C. for 7 days to obtain a solid propellant sample.

[0050] (3) The solid propellant sample provided by embodiment 1 is subjected to a performance test, and the test results are shown in Table 2:

[0051] The solid propellant performance parameter table that table 2 embodiment 1 provides:

[0052]

Embodiment 2

[0054] (1) The solid propellant formula is as shown in Table 3:

[0055] The solid propellant formula that table 3 embodiment 2 provides:

[0056]

[0057] (2) Solid propellant production method:

[0058]Step 1: Weigh the raw materials according to the formula provided in Table 3, and

[0059] Step 2. Put the weighed raw materials into a vertical mixer, and mix for 45 minutes at a temperature of 50° C. to prepare a slurry;

[0060] Step 3. The slurry was poured into a mold by vacuum spraying, and then cured at 50° C. for 5 days to obtain a solid propellant sample.

[0061] (3) The obtained solid propellant sample provided by embodiment 2 is subjected to a performance test, and the test results are shown in Table 4:

[0062] The solid propellant performance parameter table that table 4 embodiment 2 provides:

[0063]

[0064]

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Abstract

The invention provides a low-combustion-temperature low-residue gas generator propellant and a preparation method thereof, and belongs to the field of gas generator propellants. The low-combustion-temperature low-residue gas generator propellant comprises the following ingredients in parts by weight: 7.5-25% of binding agent, 0.5-4% of curing agent, 3-20% of nitrate plasticizer, 20-60% of oxidizing agent, 20-60% of cooling agent and 0-5% of combustion modifier. According to the low-combustion-temperature low-residue gas generator propellant provided by the invention, the nitrate plasticizer and the cooling agent are cooperated, the proportion amount of the nitrate plasticizer and the cooling agent is controlled to improve the oxygen content and the combustion speed (which can be 30mm / s orabove) of the gas generator propellant, the content (which is 3% or below) of the solid residue in a formula combustion product is lowered, a gas production rate is improved and can be 1100L / kg or above, and meanwhile, the advantage of low combustion temperature (less than or equal to 1300 DEG C) of the gas generator propellant is kept.

Description

technical field [0001] The invention relates to a low-combustion-temperature and low-residue gas generating agent and a preparation method thereof, belonging to the field of gas generating agents. Background technique [0002] In the 1960s, the research and development of special composite solid propellant - gas generating agent was carried out abroad. my country began to develop it in the 1980s. At present, the formula of gas generating agent at home and abroad usually includes adhesives, curing agents, plasticizers, and oxidizing agents. etc. Among them, in order to ensure that the gas generating agent has a low combustion temperature (≤1500°C), the plasticizer is an inert plasticizer, such as dioctyl adipate (DOA), dioctyl azelate (DOZ), Diisooctyl sebacate (DOS) etc., the plasticizer mass percentage content is usually about 2%-8%. [0003] The solid residue content in the combustion product of the existing gas generating agent is above 10%, and the burning rate is general...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06D5/00C06B29/22C06B23/00
CPCC06B23/009C06B29/22C06D5/00
Inventor 乔应克王文博鲁国林占明明胡肖华李志勇张军民邢瑞英刘轩
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY