| 第 47 卷第 4 期 |  | Vol. 47 No. 4 | | 2017 年 8 月 | Aug 2017 |
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所屬欄目：功能材料
不同粒度RDX對DAGR發(fā)射藥試樣抗沖擊性能的影響 |
| 駢 超1，張麗華2
（1. 中北大學(xué) 理學(xué)院，山西 太原 030051；2. 中北大學(xué) 化工與環(huán)境學(xué)院，山西 太原 030051） |
| 摘 要：為了研究黑索金（RDX）粒度對DAGR高能硝胺發(fā)射藥抗沖擊性能的影響規律，以DAGR藥片為原料，分別加入用Tyler標準篩篩分的6種不同粒度的RDX，制備成相同RDX含量的試樣，通過(guò)落錘沖擊試驗和擺錘沖擊試驗分別對所制備的發(fā)射藥試樣進(jìn)行了軸向和徑向抗沖擊性能測試。研究結果表明，隨著(zhù)RDX粒度的減小，發(fā)射藥試樣的抗沖擊性能逐漸增加。通過(guò)對試樣沖擊斷面進(jìn)行亞微觀(guān)形貌觀(guān)測，發(fā)現試樣斷裂面中固體填料RDX顆粒與粘結劑基體之間存在相互剝離的現象，斷裂面上存在裸露的RDX顆粒及RDX與基體剝離所形成的空穴。 |
| 關(guān)鍵詞：高分子物理；黑索金（RDX）；粒度；硝胺發(fā)射藥；抗沖擊性能 |
| 中圖分類(lèi)號：TJ55 文獻標識碼：A 文章編號：1009-9212（2017）04-0051-04 |
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| The Influence of Particle-size of RDX on the Impact Resistance of DAGR Nitramine Gun Propellant |
| PIAN Chao1，ZHANG Li-hua2
(1. School of Science, North University of China, Taiyuan, 030051, China; 2. School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China) |
| Abstract：In order to investigate the influence of RDX particle size on the impact resistance of DAGR high-energy nitramine propellant, DAGR premixes were used as raw materials to prepare specimens with same content of RDX in 6 different sizes prepared using Tyler standard sieve. The axial and radial impact resistance of the specimens were measured by drop hammer impact test and pendulum impact test respectively. The results showed that with the decrease of RDX particle size, the impact resistance of nitramine propellant specimen was increasing. Through submicroscopic observation of the fracture surface of the sample, this study showed that the RDX particles and the binder matrix were separated from each other in the fracture surfaces of the samples. There are exposed RDX and holes on the fracture surfaces, the holes were formed by the exposed RDX which was stripped from matrix. |
| Key words：polymer physics; hexogen (RDX); particle size; nitramine gun propellant; anti-impact property |
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作者簡(jiǎn)介：駢 超（1993-），男，山西長(cháng)治人，碩士研究生，研究方向：發(fā)射藥增韌機理的研究（E-mail：787690596@qq.com）。
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聯(lián) 系 人：張麗華，教授，研究方向：高分子物理，火藥的制備及其力學(xué)性能的研究。
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收稿日期：2017-08-10
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