本文關(guān)鍵詞：超細(xì)高氯酸銨復(fù)合粒子的制備及性能研究　出處：《含能材料》2016年03期 　論文類型：期刊論文

  更多相關(guān)文章： 超細(xì)高氯酸銨(AP) 復(fù)合粒子 感度 熱分解性能 動(dòng)力學(xué)

【摘要】：為降低超細(xì)高氯酸銨(AP)的機(jī)械感度,以納米石墨粉、普通石墨粉和炭黑為鈍感改性劑,采用氣流沖擊粉碎法對(duì)超細(xì)AP進(jìn)行表面改性,制備了超細(xì)AP/納米石墨(AP-1)、超細(xì)AP/石墨(AP-2)、超細(xì)AP/炭黑(AP-3)復(fù)合粒子以及空白超細(xì)AP對(duì)比樣(AP-C)。采用場(chǎng)發(fā)射掃描電子顯微鏡(SEM)、微米粒度儀、X射線粉末衍射儀(XRD)及傅里葉紅外光譜儀(FTIR),表征了復(fù)合粒子的形貌和結(jié)構(gòu);用撞擊感度儀和摩擦感度儀,測(cè)試對(duì)比了復(fù)合前后超細(xì)AP粒子的機(jī)械感度;采用差示掃描量熱儀(DSC),測(cè)試了復(fù)合粒子的熱分解性能。結(jié)果表明,相比于AP-C,AP-1、AP-2和AP-3的撞擊感度分別降低了18.2%、21.2%和8.9%,AP-1、AP-2和AP-3的摩擦感度分別降低了12.5%、12.5%和8.3%,10℃·min-1的升溫速率下,AP-1、AP-2和AP-3的高溫分解峰分別提前了75.4,64.2℃和44.4℃。
[Abstract]:In order to reduce the mechanical sensitivity of ultrafine ammonium perchlorate (APO), the surface of ultrafine AP was modified by airflow impact comminution with nano-graphitic powder, ordinary graphitic powder and carbon black as insensitive modifiers. Ultrafine APP / nano-graphite (AP-1) and ultrafine APP / graphite (AP-2) were prepared. Ultrafine AP- / carbon black AP-3) composite particles and blank ultrafine AP contrast sample AP-CU. Field emission scanning electron microscope (SEM) and micrometer particle size analyzer were used. The morphology and structure of the composite particles were characterized by X-ray powder diffractometer (XRD) and Fourier transform infrared spectroscopy (FTIR). The mechanical sensitivities of ultrafine AP particles before and after composite were measured and compared by impact sensitivity meter and friction sensitivity meter. The thermal decomposition properties of the composite particles were measured by differential scanning calorimeter (DSCC). The results show that the thermal decomposition properties of the composite particles are higher than that of AP-Con AP-1. The impact sensitivity of AP-2 and AP-3 decreased by 18.2% and 8.9%, respectively, and the friction sensitivity of AP-1AP-2 and AP-3 decreased by 12.5%, respectively. At the heating rate of 10 鈩，

本文編號(hào)：1438251