【摘要】 利用气-质联用技术研究了混合办公废纸漂白过程中溶解与胶体物质的生成机制。结果表明,过氧化氢漂白过程中释放出的糖基主要是葡萄糖,约占总糖基的50%;释放出的亲脂性物质主要是十六碳酸(又称软脂酸)、双(乙基己基)邻苯二甲酯,两者占总量的40%左右。FAS漂白过程中释放出的糖基主要是葡萄糖和木糖,但释放量较过氧化氢漂白低得多;释放出的亲脂性物质主要是十六碳酸、双(乙基己基)邻苯二甲酯、9-十八碳烯酸。更多还原

【Abstract】 The generation mechanism of dissolved and colloidal substances in the bleaching process of mixed office waste paper was investi- gated with gas chromatography-mass spectrometry technology. The results show that the glycosyl released in the hydrogen peroxide bleaching process was mainly glucose, which amounted to about 50% of the total carbohydrates and the lipophilic substances were mainly hexadecanoic acid (also called palmic acid) and bis(ethylhexyl) phthalate, which amounted to the 40% of the total. In the formamidine sulphinic acid (FAS) bleaching process, the released glycosyl was mainly glucose and xylose, the amount of which was much smaller than that in the hydrogen peroxide bleaching process and the lipophilic substances were mainly hexadecanoic acid, bis(ethylhexyl)-phthalate and 9-oleic acid.更多还原