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首页> 外文期刊>Journal of Applied Polymer Science >Novel, rosin-based, hydrophobically modified cationic polyacrylamide for kaolin suspension flocculation
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Novel, rosin-based, hydrophobically modified cationic polyacrylamide for kaolin suspension flocculation

机译：基于松香的松香，疏水改性的阳离子聚丙烯酰胺用于高岭土悬浮絮凝

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摘要

A novel, hydrophobically modified cationic polyacrylamide (HMPAM) was synthesized via the copolymerization of acrylamide, diallyl dimethyl ammonium chloride (DMDAAC), and diallylmethyl dehydroabietic acid propyl ester ammonium bromide. Optimum conditions for preparing HMPAM were such that the amount of initiator was 0.075 wt % of the total monomer mass, the monomer concentration was 20 wt %, and the amount of DMDAAC was 18 mol % of the total monomer molar mass. HMPAM was characterized with an UV-visible spectrometer, H-1-NMR, Ubbelohde viscometer, rotational viscometer, and rotational rheometer. HMPAM solutions exhibited strong hydrophobic associations, and the critical association concentration of the HMPAM aqueous solution was about 0.7 wt %; the HMPAM solutions also showed salt thickening and shear resistance. The surface morphologies of the freeze-dried HMPAM samples (1 wt %) were also observed via scanning electron microscopy. Compared with unmodified cationic polyacrylamide, Synthesis of HMPAM-0.5 exhibited a stronger flocculation capacity, and the optimal transmittance of the supernatants was above 95%. HMPAM-0.5 showed significant flocculation performances for 3-4 and 3-5 wt % kaolin suspensions at 40 and 50mg/L, respectively. Moreover, the flocculation performance was enhanced with the addition of NaCl and CaCl2. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46637.
机译：通过丙烯酰胺，二烯丙基二甲基氯化铵（DMDAAc）和二甲基脱氢脱酸丙酯溴化铵合成新型疏水性改性阳离子聚丙烯酰胺（HMPAM）。制备HMPAM的最佳条件使得引发剂的量为总单体质量的0.075wt％，单体浓度为20wt％，Dmdaac的量为总单体摩尔质量的18mol％。 HMPAM的特征在于UV可见光谱仪，H-1-NMR，Ubbelohde粘度计，旋转粘度计和旋转流变仪。 HMPAM溶液表现出强烈的疏水缔合，HMPAM水溶液的关键缔合浓度约为0.7wt％; HMPAM溶液还显示出盐增稠和抗剪切抗性。还通过扫描电子显微镜观察冷冻干燥的HMPAM样品（1wt％）的表面形态。与未改性的阳离子聚丙烯酰胺相比，HMPAM-0.5的合成表现出更强的絮凝能力，上清液的最佳透射率高于95％。 HMPAM-0.5分别显示出3-4和3-5wt％高岭土悬浮液的显着絮凝性能，分别为40％和50mg / L.此外，通过添加NaCl和CaCl 2来增强絮凝性能。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46637。

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  • 来源
    《Journal of Applied Polymer Science》 |2018年第34期|共11页
  • 作者

    Zhang Haibo; Jiang Jianxin; Shang Shibin; Song Zhanqian; Song Jie;

  • 作者单位

    Chinese Acad Forestry Inst Chem Ind Forestry Prod Natl Engn Lab Biomass Chem Utilizat Key Lab Fores State Forestry Adm Key Lab Biomass Energy &

    Mat Nanjing 210042 Jiangsu Peoples R China;

    Beijing Forestry Univ Coll Mat Sci &

    Technol Engn Res Ctr Forestry Biomass Mat &

    Bioenergy Minist Educ Beijing 100083 Peoples R China;

    Chinese Acad Forestry Inst Chem Ind Forestry Prod Natl Engn Lab Biomass Chem Utilizat Key Lab Fores State Forestry Adm Key Lab Biomass Energy &

    Mat Nanjing 210042 Jiangsu Peoples R China;

    Chinese Acad Forestry Inst Chem Ind Forestry Prod Natl Engn Lab Biomass Chem Utilizat Key Lab Fores State Forestry Adm Key Lab Biomass Energy &

    Mat Nanjing 210042 Jiangsu Peoples R China;

    Univ Michigan Dept Chem &

    Biochem Flint MI 48502 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    copolymers; hydrophilic polymers; polyelectrolytes; rheology; viscosity and viscoelasticity;

    机译：共聚物;亲水性聚合物;聚电解质;流变学;粘度和粘弹性;

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