CAJ | 학술논문

以纤维素为原料，在等离子体电解条件下，研究了K+、Ca2+、Fe2+3种金属离子对纤维素降解制备乙二醛的影响。结果表明， K+、Ca2+、Fe2+3种金属离子对纤维素降解有明显的催化作用，其催化作用大小依次为Fe2+、K+、Ca2+。乙二醛的浓度随着电导率的增大，先升高后降低；电导率为10~15 mS∕cm时，乙二醛浓度达到最大值。乙二醛的浓度随着反应时间的延长，先升高后降低；在15 min时，乙二醛浓度达到最大值。 X射线衍射结果显示，等离子体电解破坏了纤维素结晶区结构，结晶度显著下降；傅里叶红外变换光谱结果表明，等离子产生的活性粒子对分子间和分子内氢键有解缔作用，使其强度降低。
이섬유소위원료，재등리자체전해조건하，연구료K+、Ca2+、Fe2+3충금속리자대섬유소강해제비을이철적영향。결과표명， K+、Ca2+、Fe2+3충금속리자대섬유소강해유명현적최화작용，기최화작용대소의차위Fe2+、K+、Ca2+。을이철적농도수착전도솔적증대，선승고후강저；전도솔위10~15 mS∕cm시，을이철농도체도최대치。을이철적농도수착반응시간적연장，선승고후강저；재15 min시，을이철농도체도최대치。 X사선연사결과현시，등리자체전해파배료섬유소결정구결구，결정도현저하강；부리협홍외변환광보결과표명，등리자산생적활성입자대분자간화분자내경건유해체작용，사기강도강저。
Using cellulose as the raw material, effects of three kinds of metal ions (K+, Ca2+, Fe2+) on the production of glyoxal was investigated with plasma electrolysis. Results showed that the presence of metal ions (K+, Ca2+, Fe2+) could improve the production of glyoxal significantly. The order of effects of the three kinds of metal ions from strong to weak was Fe2+>K+>Ca2+. With the increase of conductivity, the concentration of glyoxal was increased at first and then decreased. The concentration of glyoxal reached a maximum value when the conductivity was 10~15 mS/cm. The concentration of glyoxal was increased first and then decreased with the prolonging reaction and reached a maximum value at 15 min. The results of X-ray diffraction and fourier transform infrared spectroscopy showed that plasma electrolysis could break down the crystallized zone and hydrogen bonding of cellulose.