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Low-carbon-residue insulating layer material for electronic control solid propellant electrode and preparation method thereof

A solid propellant and insulating layer technology, applied in the field of solid propellant electrode materials, can solve problems such as high carbon residue rate and affect the use of new energy, achieve high burning rate and reduce surface attachments

Pending Publication Date: 2021-05-14
CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is also the problem of high carbon residue rate, which affects the further use of new energy.

Method used

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  • Low-carbon-residue insulating layer material for electronic control solid propellant electrode and preparation method thereof
  • Low-carbon-residue insulating layer material for electronic control solid propellant electrode and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] A low carbon residue insulating layer material for an electrically controlled solid propellant electrode and a preparation method thereof, comprising the following raw materials and mass fractions:

[0044] Polypropylene: 60;

[0045] Dicumyl peroxide: 1;

[0046] Rosin: 10;

[0047] Polyethylene wax: 1;

[0048] White carbon black: 20;

[0049] PPS: 8;

[0050] Stir the weighed raw materials of each component in a high-speed mixer for 3 minutes, and then put the mixed material into a twin-screw extruder for extrusion and granulation. The temperature in the second zone is 140-160°C, the temperature in the third zone is 150-170°C, the temperature in the fourth zone is 170-180°C, the temperature in the fifth zone is 170-190°C, the temperature in the sixth zone is 170-190°C, and the temperature of the machine head is 160-180°C. The host speed is 180~300r / min. The extruded granules are dried, crushed and ground, and passed through a 120-mesh sieve. Put the sieved pow...

Embodiment 2

[0052] A low carbon residue insulating layer material for an electrically controlled solid propellant electrode and a preparation method thereof, comprising the following raw materials and mass fractions:

[0053] Polypropylene: 80;

[0054] Di-tert-butyl peroxide: 2.0;

[0055] Petroleum resin: 3;

[0056] Polyethylene wax: 2;

[0057] White carbon black: 8;

[0058] PEEK: 5;

[0059] Stir the weighed raw materials of each component in a high-speed mixer for 3 minutes, and then put the mixed material into a twin-screw extruder for extrusion and granulation. The temperature in the second zone is 140-160°C, the temperature in the third zone is 150-170°C, the temperature in the fourth zone is 170-180°C, the temperature in the fifth zone is 170-190°C, the temperature in the sixth zone is 170-190°C, and the temperature of the machine head is 160-180°C. The host speed is 180~300r / min. The extruded granules are dried, crushed and ground, and passed through a 120-mesh sieve. P...

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PUM

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Abstract

The invention provides an insulating layer material with excellent comprehensive performance for a solid propellant. The insulating layer material comprises the following raw materials in parts by mass: 60-90 parts of polypropylene; 0.1-2.0 parts of peroxide; 3-10 parts of tackifying resin; 0.5-3.0 parts of polyethylene wax; 5-20 parts of white carbon black; and 2-8 parts of high-temperature-resistant resin. White carbon black is added in the formula, so that no attachment on the surface of an electrode after the insulating material is burnt is ensured, and construction of the conductive path between a propellant and the electrode is ensured. Materials with different heat-resistant grades are added, the multi-gradient thermal decomposition temperature of the insulating material is constructed, and it is guaranteed that combustion of the insulating material is orderly and controllable.

Description

technical field [0001] The invention belongs to the field of materials for solid propellant electrodes, and in particular relates to a low carbon residue insulating layer material for electrically controlled solid propellant electrodes and a preparation method thereof. Background technique [0002] Electronically controlled solid propellants have the characteristics of burning when powered on, extinguishing when powered off, and controllable burning rate, which solves the problems that traditional solid propellants are difficult to achieve multiple ignitions and the burning rate is uncontrollable. The working principle of the electronically controlled solid propellant is that the solid propellant is in contact with the electrode to form a conductive path, and when an appropriate voltage is input, the propellant ignites and burns. In order to realize the function of the propellant burning when it is powered on and extinguishing when it is turned off, it is necessary to coat a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L93/04C08L23/06C08L81/02C08K7/26C08K5/14C08L57/02C08L61/16
CPCC08L23/12C08L2205/035C08L2205/02C08L93/04C08L23/06C08L81/02C08K7/26C08K5/14C08L57/02C08L61/16
Inventor 熊平范骁
Owner CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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