Page 170 - 201901

第 36 卷第 1 期 精 细 化 工 Vol.36, No.1
201 9 年 1 月 FINE CHEMICALS Jan. 2019

水处理技术与环境保护
HPCS-AM-DAC 共聚物的合成及其絮凝性能

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郭 睿，张 瑶 ，王 宁，韩 双，高弯弯
（陕西科技大学 陕西省轻化工助剂重点实验室，陕西 西安 710021）

摘要：以羟丙基壳聚糖（HPCS）、丙烯酰胺（AM）、丙烯酰氧乙基三甲基氯化铵（DAC）为原料合成三元高分
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子共聚物（HPCS-AM-DAC）。采用 FTIR、 HNMR、XRD、SEM 对其结构和形貌进行了表征。考察了反应温度、
引发剂硝酸铈铵用量、单体滴加时间及 DAC 用量对产物阳离子度及特性黏数的影响。结果表明，在水为 25 mL、
丙烯酰胺为 2 g、HPCS 为 1 g、反应温度 70 ℃、引发剂用量为 1.7%（以 HPCS 质量为基准，下同）、单体滴加
时间为 35 min、DAC 为 3.5 g 的条件下，产物的阳离子度和特性黏数均达到较佳值，分别为 63.01%和 468.81
mL/g。采用壳聚糖（CTS）、HPCS、HPCS-AM-DAC 及市售阳离子聚丙烯酰胺（CPAM）对高岭土模拟废水进
行絮凝实验，考察了絮凝体系 pH、不同絮凝产品投加量对浊度去除率的影响。结果表明，在浊度为 200 NTU
的高岭土模拟废水中， HPCS-AM-DAC 絮凝的适宜 pH 为 2~6，适宜投加量为 2~5 mg/L，在该条件下浊度去除
率均在 96%以上。
关键词：羟丙基壳聚糖；丙烯酰胺；丙烯酰氧乙基三甲基氯化铵；自由基聚合；絮凝性能；水处理技术
中图分类号：TQ317 文献标识码：A 文章编号：1003-5214 (2019) 01-0156-07

Synthesis of HPCS-AM-DAC and Its Flocculating Properties

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GUO Rui, ZHANG Yao , WANG Ning, HAN Shuang, GAO Wan-wan
（Shaanxi Provincial Key Laboratory of Additives for Light Chemical Industry, Shaanxi University of Science and
Technology, Xi'an 710021, Shaanxi, China）

Abstract: Hydroxypropyl chitosan (HPCS), acrylamide (AM) and acryloyloxyethyl trimethyl ammonium
chloride (DAC) were used as raw materials to synthesize copolymer HPCS-AM-DAC. The obtained
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product was characterized by FTIR, HNMR, XRD and SEM. The influences of reaction temperature,
ammonium nitrate dosage, dropping time of monomers and DAC dosage on the cationic degree and
intrinsic viscosity were investigated. The results showed that under the conditions of H 2O 25 mL, AM
dosage 2 g, HPCS dosage 1 g, reaction temperature 70 ℃, initiator dosage 1.7% (based on the mass of
HPCS, the same below), dropping time of monomers 35 min, and DAC dosage 3.5 g, both cationic degree
and intrinsic viscosity of the product reached a good value of 63.01% and 468.81 mL/g. The flocculation
experiments of kaolin simulated wastewater were carried out with CTS, homemade HPCS,
HPCS-AM-DAC and commercial cationic polyacrylamide (CPAM). The effects of flocculation system pH
and flocculation dosage on the removal rate of turbidity was investigated. The results showed that in kaolin
simulated wastewater with a turbidity of 200 NTU, the suitable pH range for flocculation of HPCS-AM-DAC
was 2~6, and the dosage range was 2~5 mg/L. Under these conditions, the turbidity removal rate was above
96%.
Key words: hydroxypropyl chitosan; acrylamide; acryloyloxyethyl trimethyl ammonium chloride; free
radical polymerization; flocculating properties;water treatment technology
Foundation items: Key Research and Development Plan of Shaanxi Province (2017ZDXM-GY-087,
2017GY-185)

收稿日期：2018-05-12; 定用日期：2018-08-08; DOI: 10.13550/j.jxhg.20180344
基金项目：陕西省重点研发计划（2017ZDXM-GY-087，2017GY-185）
作者简介：郭 睿（1959—），男，教授。联系人：张 瑶（1992—），女，硕士生，E-mail：543100811@qq.com。