CAJ | 학술논문

按一定比例配制6种不同的复合碱金属盐浸渍剂溶液,对炭阳极基体进行浸渍,探讨其抗氧化性能.测试了不同浸渍剂浸渍的炭阳极试样及未经浸渍的原试样的氧化度和热性能,并通过扫描电子显微镜(SEM)对其组织形貌进行了分析.结果表明:以试剂A为溶剂配制的浸渍剂溶液能够起到很好的抗氧化作用,其中以试剂A、2号Na盐和助剂B组合的浸渍剂效果最好,该浸渍剂浸渍过的炭阳极试样灼烧至800℃氧化度仅为19.7%,失重率也比原试样降低了68%.以硼酸为溶剂配制的复合碱金属盐浸渍剂反而会加剧炭阳极基体的氧化反应速率.试剂A为溶剂配制的复合碱金属盐浸渍剂在炭颗粒表面和空隙间均匀分布,不仅能够延缓氧化反应速度,而且还能提高炭阳极材料剧烈氧化的初始温度.
안일정비례배제6충불동적복합감금속염침지제용액,대탄양겁기체진행침지,탐토기항양화성능.측시료불동침지제침지적탄양겁시양급미경침지적원시양적양화도화열성능,병통과소묘전자현미경(SEM)대기조직형모진행료분석.결과표명:이시제A위용제배제적침지제용액능구기도흔호적항양화작용,기중이시제A、2호Na염화조제B조합적침지제효과최호,해침지제침지과적탄양겁시양작소지800℃양화도부위19.7%,실중솔야비원시양강저료68%.이붕산위용제배제적복합감금속염침지제반이회가극탄양겁기체적양화반응속솔.시제A위용제배제적복합감금속염침지제재탄과립표면화공극간균균분포,불부능구연완양화반응속도,이차환능제고탄양겁재료극렬양화적초시온도.
Carbon anode are impregnated by different compound alkali metal salts, prepared with certain proportion. Oxidization degree and thermal property of the carbon anodes which were dipped by different impregnant or untreated were tested, while the mierostructures and morphologies of samples were analyzed by SEM observation. The results show that impregnant, with reagent A as solvent, can protect the matrix well. On the contrary, that with boric acid as solvent will aggravate oxidation reaction of the samples. Moreover, the oxidization degree of carbon anode, immersed by the best mix containing reagent A , the second sodium salt and addition agent B, is only 19.7% and the hot weight loss is lower 68% than that of the untreated one. At the same time, impregnant, with reagent A as solvent, which distributes evenly on the surface and void of carbon particles not only decreases the rate of oxidation, but also increases the temperature of initial acute oxidation.