Gas-Generating Agent Composition for Faster Burn and Ignition
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Solution Overview
Problem
Existing gas-generating agent compositions have low burn rates, which complicate production processes and hinder early deployment in inflators, and lack good ignitability.
Innovation Solution
Incorporating basic magnesium carbonate with an average particle size of 12 µm or less into a gas-generating agent composition containing guanidine nitrate and a basic metal nitrate enhances burn rate and ignitability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the burn rate of the gas-generating agent composition is increased, then the ignitability is improved, but the composition may require smaller size when molded which complicates the production process
Solution Approach 1:
The patent applies parameter changes by controlling the average particle size of basic magnesium carbonate to be 12 μm or less, and adjusting its content to 0.1-11 mass%. This specific parameter optimization enables high burn rate while maintaining ease of molding and production, resolving the contradiction between speed and manufacturing ease.
2Loss of time
If the burn rate of the gas-generating agent composition is increased, then early deployment in inflators is enabled, but the composition may require smaller size when molded which complicates the production process
Solution Approach 1:
The patent optimizes the particle size parameter of basic magnesium carbonate to 12 μm or less and its content to 0.1-11 mass%, which achieves short ignition time for early deployment while maintaining simple production processes and ease of molding.
3Speed
If the average particle size of basic magnesium carbonate is reduced to enhance burn rate, then ignitability is improved, but the surface area increases which may affect other properties
Solution Approach 1:
The patent precisely controls the particle size parameter of basic magnesium carbonate to be 12 μm or less, and optimizes its content within 0.1-11 mass%. This balanced parameter selection achieves high burn rate while controlling surface area effects, improving ignitability without compromising other critical properties.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves a high burn rate and short ignition time, simplifying production and enabling early deployment in inflators.
Implementation Method 1
a gas-generating agent composition containing guanidine nitrate as a fuel and a basic metal nitrate as an oxidizing agent, the burn rate of the gas-generating agent composition increases when basic magnesium carbonate is added
Implementation Method 2
the gas-generating agent composition has a high burn rate and good ignitability... good ignitability is synonymous with short ignition time
Data Source
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AI summary
Provided is a gas-generating agent composition containing the components (a) to (d) below, in which an average particle size of the following component (d) basic magnesium carbonate is 12 µm or less: (a) guanidine nitrate; (b) a basic metal nitrate; (c) a binder; and (d) basic magnesium carbonate.