每年出版 6 期
ISSN 打印: 2150-766X
ISSN 在线: 2150-7678
Indexed in
BASIC STUDY OF GAS GENERANT IN AIR BAG INFLATORS
摘要
Currently, the market of airbag inflators as automobile safety devices is still expanding and the key technology in airbag inflation depends on the performance of a gas generant inside the inflator. The gas generant has been developed for modifying inflator performance for airbag deployment in automobiles, usually such a target would be higher gas mol per weight of gas generant, lower gas temperature, and more filterable slug formation of residue inside the inflator. One representative composition of only fuel and oxidizer as the gas generant, which satisfies the target performance, was selected and studied in order to prevent the reaction mechanism from burning the inflator in the airbag system. For a basic study of recent typical gas generants, an initial reaction model with input data was constructed from many experimental data, including the burn rate, burn temperature, SEM image of residue, high-speed video camera image of gas generant burning, and high-pressure differential thermal analysis (DTA).
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