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含量和烧结温度对复合粒子形貌与燃烧性能的影(4)

来源:烧结球团 【在线投稿】 栏目:期刊导读 时间:2021-03-06
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摘要:(3)复合粒子的燃烧性能与微观形貌存在相关性:包覆完整度高、拥有规整的核壳结构、分散性好的复合粒子,整体燃烧性能也更好。表现为燃烧时产生

(3)复合粒子的燃烧性能与微观形貌存在相关性:包覆完整度高、拥有规整的核壳结构、分散性好的复合粒子,整体燃烧性能也更好。表现为燃烧时产生的压力高,增压率大,燃速高,火焰尺寸大,火焰温度高。

(4)综合考量,PTFE 含量为35%,烧结温度为340 ℃是最优制备条件,该条件下制备的复合粒子拥有紧致均匀的核壳结构且分散性好,较其它条件制备的样品燃烧压力最高增大16%,燃烧时间最长缩短37%,中心火焰温度提高317.1 ℃,燃烧性能得到显著提高。

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