活性炭微波改性及对偏二甲肼中氧化杂质的吸附

• 作 者: 苟小莉 王焕春 徐金 王煊军
• 机 构: 第二炮兵工程大学,第二炮兵驻天津地区军事代表室,
• 出 处: 化学推进剂与高分子材料
• 发表日期: 2012年06期
• 关键词: 微波改性 活性炭 改性 偏二甲肼 氧化杂质 吸附 杂质 微分吸附热 平衡吸附量 孔隙结构

研究了活性炭微波改性后表面性质的变化及对偏二甲肼中氧化杂质吸附的性能。结果表明:微波法改性使活性炭表面的含氧基团有明显的减少,孔隙结构更为丰富;随着微波功率的提高,吸附率有明显的提高,微波照射时间对吸附效果的影响与功率有关;微波改性后的活性炭对偏二甲肼中的氧化杂质有更大的平衡吸附量及较小的等量微分吸附热。

The changes of the surface properties after the microwave modification of activated carbon and the adsorption properties of the oxidized impurities in the UDMH were studied. The results showed that the modification of the microwave process significantly reduced the oxygen-containing groups on the surface of the activated carbon, and the pore structure was more abundant. The adsorption rate was significantly increased with the increase of microwave power. The influence of microwave irradiation time on the adsorption capacity and power ; Microwave-modified activated carbon has more equilibrium adsorption capacity and smaller equivalent differential adsorption heat to the oxidized impurities in UDMH.