GAS GENERATING AGENT COMPOSITION, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

摘要

The present disclosure relates to a gas generant composition, a preparation method, and a gas generator containing the composition. The gas generant composition comprises components having the following contents, in percent by mass: 40% to 60% of guanidine nitrate, 25% to 60% of basic copper nitrate, 1% to 20% of strontium nitrate, 1% to 10% of ammonium perchlorate, 1% to 10% of a slag-forming agent, and 0.6% to 10% of a release agent/lubricant. In the gas generant composition, the slag-forming agent is used as a form-retaining agent, so that the tablets can retain their form before combustion very well after combustion, thereby completely avoiding burning of an inflatable bag due to melting and splashing of the combusted tablets. Moreover, strontium nitrate and ammonium perchlorate are used as auxiliary oxidizers, thereby reducing the amount of basic cupric nitrate used and reducing molten copper residues. The gas generant composition is mainly used in a gas generator for a vehicle airbag.