两性高分子絮凝剂的结构与性能的研究 |
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引用本文: | 王杰,肖锦,詹怀宇.两性高分子絮凝剂的结构与性能的研究[J].环境保护科学,2000,26(6):12-14. |
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作者姓名: | 王杰 肖锦 詹怀宇 |
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作者单位: | 华南理工大学造纸与环境工程学院 广州 510641 |
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基金项目: | 此课题为广东省环保局资助项目。 |
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摘 要: | 以天然高分子植物粉 F691为原料 ,通过羧甲基化、接枝共聚和曼尼期 ( Mannich)三步反应合成出两性天然高分子改性絮凝剂 ( CGAAC)。研究了阴 /阳取代度、接枝率等结构因素对 CGAAC絮凝性能的影响 ;并将 CGAAC对高岭土的絮凝性能与阴离子絮凝剂 CGA和阳离子絮凝剂 PAM-C进行了对比 ,实验结果表明 :该絮凝剂具有最佳用量范围较宽、p H值使用范围较宽的特点
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关 键 词: | 两性高分子絮凝剂 羧甲基化 接枝共聚 曼尼期(Mannich)反应 絮凝试验 |
修稿时间: | 2000年4月20日 |
Study on the Structure and flocculation Properties of an Amphoteric Polymeric Flocculant |
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Abstract: | In this paper the natural wood powder F691 was modified by carboxymethyl reaction,grafting reaction andMannich reaction to prepare a new amphoteric flocculant(CGAAC),the optimal structure conditions for the preparation ofCGAAC were determined. The flocculation properties of CGAAC toward the water of kaolinite were also studied, the ex-perimental results showed that CGAAC have wider optimal dosage and pH value for flocculation. |
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Keywords: | Amphoteric polymeric flocculant Carboxymethyl reaction Grafting reaction Mannich reaction Fioc-culation experiment |
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