Application of Amphoteric PVAc Copolymer Emulsion for Ecological Sand Fixation in High Salt-affected Sandy Land

doi:10.19491/j.issn.1001-9278.2019.10.009

Abstract

Abstract: In order to obtain the technical basis of the amphoteric PVAc copolymer emulsion used in ecological sand-fixing of salty desert, a detailed investigation was conducted for illuminating both the sand-fixing properties and ecological effect of the amphoteric PVAc copolymer emulsion. The experimental results showed that the amphoteric PVAc copolymer not only had excellent salt resistance, but also the sand-fixing strength of the amphoteric PVAc copolymer emulsion reached 0.46 MPa when the used concentration was 2% for sand-fixation in high salt-affected sandy land, which had met the requirements of wind erosion resistance in desert environment. In addition, compared with non-amphoteric PVAc copolymer emulsion, the amphoteric PVAc copolymer emulsion could significantly improve the water-retention property and increase the utilization rate of water, thus it could promote the growth of sandy soil microorganisms. These experimental results showed that the amphoteric PVAc copolymer emulsion could be used as a novel ecological sand-fixing material for the ecological management of salty desert.

Key words: amphoteric copolymer, salty desert, ecological sand fixation, copolymer emulsion, eco-logical effect

CLC Number:

LI Meilan, GONG Wei, SHI Jing, XU Jiao, KE Xiu, LIU Bailing. Application of Amphoteric PVAc Copolymer Emulsion for Ecological Sand Fixation in High Salt-affected Sandy Land[J]. China Plastics, 2019, 33(10): 46-53.

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