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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (1): 325-335.DOI: 10.16552/j.cnki.issn1001-1625.2025.0784

• 道路材料 • 上一篇    下一篇

聚丙烯酸丁酯-丙烯酸/水玻璃复合改性淤泥的流变特性与力学性能

鲁依萍1(), 黄修林1,2(), 周紫晨3, 刘仕琪3   

  1. 1.湖北大学材料科学与工程学院,武汉 430062
    2.湖北大学麻城产业技术研究院,麻城 438313
    3.中冶武汉冶金建筑研究院有限公司,武汉 430081
  • 收稿日期:2025-08-04 修订日期:2025-09-22 出版日期:2026-01-20 发布日期:2026-02-10
  • 通信作者: 黄修林,博士,教授。E-mail:583887449@qq.com
  • 作者简介:鲁依萍(2001—),女,硕士研究生。主要从事流态固化土方面的研究。E-mail:915696132@qq.com
  • 基金资助:
    湖北省科技创新人才计划项目(2023DJC062);湖北省科技厅技术创新重点研发计划(2023BCB072);湖北省科技计划(2025BCB085)

Rheological and Mechanical Properties of Polybutyl Acrylate-Acrylic Acid/Water Glass Composite Modified Sludge

LU Yiping1(), HUANG Xiulin1,2(), ZHOU Zichen3, LIU Shiqi3   

  1. 1. School of Materials Science and Engineering,Hubei University,Wuhan 430062,China
    2. Hubei University Industrial Technology Research Institute of Macheng,Macheng 438313,China
    3. MCC Wuhan Metallurgical Construction Research Institute Co. ,Ltd. ,Wuhan 430081,China
  • Received:2025-08-04 Revised:2025-09-22 Published:2026-01-20 Online:2026-02-10

摘要:

本文以丙烯酸丁酯(BA)、丙烯酸(AA)和水玻璃为主要原料,十二烷基硫酸钠(SDS)和烷基酚聚氧乙烯醚(OP-10)为复合乳化剂,采用预乳化半连续种子乳液聚合法合成复合土壤固化剂(PBA),通过正交试验研究了水玻璃模数、固化剂掺量及水土比对PBA固化土无侧限抗压强度的影响。FT-IR结果分析表明,BA、AA和水玻璃三种单体均参与反应。当水玻璃模数为2.2、固化剂掺量为4%(质量分数)、水土比为0.44时,PBA固化土性能最优,流动度达到132 mm,7 d无侧限抗压强度为1.37 MPa。

关键词: 聚丙烯酸酯, 乳液聚合, 土壤固化剂, 固化土, 无侧限抗压强度, 最佳掺量

Abstract:

This paper used butyl acrylate (BA), acrylic acid (AA), and water glass as main raw materials, and sodium dodecyl sulfate (SDS) and polyoxyethylene alkylphenol (OP-10) as composite emulsifiers, composite soil curing agent (PBA) was synthesized through pre-emulsification and semi-continuous seed emulsion polymerization. The effects of water glass modulus, curing agent content, and water-soil ratio on the unconfined compressive strength of the PBA-cured soil were investigated through orthogonal experiments. FT-IR analysis indicates that all three monomers, BA, AA, and water glass, participate in the reaction. When the modulus of water glass is 2.2, the content of curing agent is 4%(mass fraction), and the water-soil ratio is 0.44, the performance of the PBA-cured soil is optimal, with a fluidity of 132 mm and an unconfined compressive strength of 1.37 MPa after 7 d.

Key words: polyacrylate, emulsion polymerization, soil curing agent, solidified soil, unconfined compressive strength, optimal content

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