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| 混合办公废纸碎浆过程中DCS的生成机制 | |
| 引用本文： | 张春辉,秦梦华,詹怀宇,Holmbom B,徐春林.混合办公废纸碎浆过程中DCS的生成机制[J].中国造纸学报,2006,21(2):43-46. |
| 作者姓名： | 张春辉 秦梦华 詹怀宇 Holmbom B 徐春林 |
| 作者单位： | 1. 华南理工大学制浆造纸工程国家重点实验室,广东,广州,510640;山东轻工业学院制浆造纸工程省级重点学科,山东,济南,250100 2. 山东轻工业学院制浆造纸工程省级重点学科,山东,济南,250100 3. 华南理工大学制浆造纸工程国家重点实验室,广东,广州,510640 4. Forest Chemistry Lab.,(A)bo Akademi University,Turku/(A)bo,Finland |
| 基金项目： | 国家自然科学基金资助项目(20376042) |
| 摘 要： | 利用气相色谱技术分析了混合办公废纸碎浆过程中DCS(溶解与胶体物质)的生成机制。研究结果表明:DCS中的糖基绝大部分是葡萄糖基。NaOH和H2O2都会使碳水化合物各糖基的浓度升高;脱墨剂对DCS中的碳水化合物的溶出影响很小。脂肪酸和树脂酸(统称RFAs)主要包括脱氢枞酸、十六碳酸、双(乙基己基)邻苯二甲酯等,其他组分的浓度很小。加入脱墨剂,这些亲脂性物质的浓度成倍增加;NaOH会促进RFAs的释放,而加入H2O2后,RFAs的浓度略有降低。 |
| 关 键 词： | 办公废纸 气相色谱 脂肪酸 树脂酸 溶解与胶体物质 |
| 文章编号： | 1000-6842（2006）02-0043-04 |
| 收稿时间： | 2006-01-09 |
| 修稿时间： | 2006-01-09 |
Release Mechanism of Dissolved and Colloidal Substances (DCS) during Repulping of Mixed Office Wastepaper (MOW) |
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| Zhang Chun-hui,Qin Meng-hua,Zhan Huai-yu,Holmbom B,Xu Chun-lin.Release Mechanism of Dissolved and Colloidal Substances (DCS) during Repulping of Mixed Office Wastepaper (MOW)[J].Transactions of China Pulp and Paper,2006,21(2):43-46. | |
| Authors: | Zhang Chun-hui Qin Meng-hua Zhan Huai-yu Holmbom B Xu Chun-lin |
| Abstract: | The release mechanism of dissolved and colloidal substances(DCS) during repulping of mixed office wastepaper(MOW) was investigated using gas chromatography(GC).Results showed that glucose was the predominant sugar unit of the carbohydrate portion.Sodium hydroxide and hydrogen peroxide led to an increase of the concentration of sugar units,while the deinking agent did not.The released resin and fatty acids(RFAs) were mainly composed of dehydroabietic acid,hexa-decanoic acid,bis-(ethylhexyl)phthalate,etc.The deinking agent had a large effect on the amount and the composition of RFAs.Sodium hydroxide was of help the release of RFAs.The total amount of RFAs decreased a little after adding hydrogen peroxide. |
| Keywords: | MOW gas chromatography fatty acid resin acid DCS |
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