紫外光引发聚合P(AM-MAPTAC)及其响应面优化制备
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国家自然科学基金(21477010、21677020)


Ultraviolet-initiated synthesis of P(AM-MAPTAC) and optimization of preparation conditions with response surface method
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    摘要:

    以丙烯酰胺(AM)与甲基丙烯酰胺丙基三甲基氯化铵(MAPTAC)为共聚单体,通过紫外光引发聚合法制备阳离子聚丙烯酰胺絮凝剂P(AM-MAPTAC)。通过红外光谱(IR)与差热热重分析(TG/DSC)分别对P(AM-MAPTAC)进行结构表征与热稳定性分析,并采用响应曲面法得到优化制备条件:反应体系pH为4.75,引发剂v-044质量分数为0.07%,EDTA-2Na质量分数为0.20%,n(MATPAC)/n(AM)为0.33,光照时间为60 min。在优化条件下制备P(AM-MAPTAC)絮凝剂,特性粘度可达14.72 dL/g,通过污泥脱水实验可验证该特性粘度下的污泥脱水效果最好,滤饼含水率(FCMC)达70%,污泥比阻(SRF)达6.94×1012m/kg,上清液剩余浊度达9.70 NTU,污泥脱水效果优于市售常用絮凝剂。

    Abstract:

    The cationic polyacrylamide flocculant P(AM-MAPTAC) was prepared by polymerizing acrylamide(AM) and methacrylamide propyl trimethyl ammonium chloride (MAPTAC) under UV irradiation conditions. Determination the structural features and thermal stability of P(AM-MAPTAC) by IR and TG/DSC. The Response Surface Method was used to obtain the optimum preparation conditions:pH 4.75, initiator mass fraction 0.07%, EDTA-2Na mass fraction 0.20%, MATPAC/AM molar ratio 0.33, illumination time 60min.Under optimal conditions, the intrinsic viscosity of P(AM-MAPTAC) reached 14.72dL/g, under this condition, P(AM-MAPTAC) showed the best effect of sludge dewatering, FCMC 70%, SRF 6.94×1012 m/kg, tubidity 9.70 NTU.

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郑怀礼,寿倩影,李香,刘冰枝,郑欣钰,梁逸舟,周于皓,郭洪茹.紫外光引发聚合P(AM-MAPTAC)及其响应面优化制备[J].土木与环境工程学报(中英文),2017,39(1):118-124. Zheng Huaili, Shou Qianying, Li Xiang, Liu Bingzhi, Zheng Xinyu, Liang Yizhou, Zhou Yuhao, Guo Hongru. Ultraviolet-initiated synthesis of P(AM-MAPTAC) and optimization of preparation conditions with response surface method[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2017,39(1):118-124.10.11835/j. issn.1674-4764.2017.01.017

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  • 收稿日期:2016-05-06
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  • 在线发布日期: 2017-02-08
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