Preparation and anti-leakage properties of hydroxyethyl cellulose-g-poly (butyl acrylate-co-vinyl acetate) emulsion

Xiaomei Liu; Wei Zeng; Junji Zhao; Xueyan Qiu; Hongran Xiong; Yan Liang; Xie Ye; Ziqiang Lei; Denglong Chen

doi:10.1016/j.carbpol.2020.117467

Preparation and anti-leakage properties of hydroxyethyl cellulose-g-poly (butyl acrylate-co-vinyl acetate) emulsion

Carbohydr Polym. 2021 Mar 1:255:117467. doi: 10.1016/j.carbpol.2020.117467. Epub 2020 Dec 1.

Authors

Xiaomei Liu¹, Wei Zeng¹, Junji Zhao¹, Xueyan Qiu¹, Hongran Xiong¹, Yan Liang¹, Xie Ye¹, Ziqiang Lei², Denglong Chen³

Affiliations

¹ Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-Environment Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China.
² Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-Environment Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China. Electronic address: leizq@nwnu.edu.cn.
³ Quangang Petrochemical Research Institute, Fujian Normal University, Quanzhou, 362801, China. Electronic address: chendenglong@163.com.

PMID: 33436235
DOI: 10.1016/j.carbpol.2020.117467

Abstract

A hydroxyethyl cellulose-g-poly (butyl acrylate-co-vinyl acetate)(HEC-g-P (BA-co-VAc)) emulsion was synthesized by free radical emulsion polymerization method from hydroxyethyl cellulose (HEC), butyl acrylate (BA) and vinyl acetate (VAc) in the presence of emulsifier sodium dodecyl benzene sulfonate (SDBS). The structure, thermal stability and morphology of the emulsion were characterized by Fourier-transform infrared (FTIR), thermogravimetric analysis (TGA), transmission electron microscope (TEM) and other analytical techniques. The results proved that BA and VAc monomers had grafted with HEC. Its thermal stability was also significantly improved compared to HEC. Moreover, the prepared emulsion was evaluated to study the performance of preventing water leakage in soil. Compared with the published anti-leakage materials prepared by directly doping hydroxyethyl cellulose, the emulsion interacted with attapulgite to form a dense consolidation layer, which had better anti-leakage performance and water retention. Therefore, the material was more favorable for popularization and application in arid and semi-arid areas.

Keywords: Attapulgite; Hydroxyethyl cellulose; Water leakage in soil; Water retention.