Synthesis and characterization of a novel soil stabilizer based on biodegradable poly(aspartic acid) hydrogel

被引：13
|
作者：
Yang, Jun [1 ]
Wang, Fang [1 ]
Tan, Tianwei [1 ]
机构：
[1] Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing Key Lab Bioproc, Beijing 100029, Peoples R China
来源：
KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2008年 / 25卷 / 05期
基金：
国家高技术研究发展计划(863计划);
关键词：
Wind Erosion; Soil Stabilizer; Compressive Strength; Poly(aspartic acid); Xanthan Gum;
D O I：
10.1007/s11814-008-0176-1
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel soil stabilizer based on poly-amino acid - polyaspartic acid (PASP) and its copolymer which modified by xanthan gum (XG) was studied to increase soil particle compressive strength and resistance to wind erosion. Due to its unique property, the stabilizer aggregated individual soil particles and formed crust. The sample compressive strength increased from 0.175 to 0.612 MPa and the wind erosion modulus reduced from to 10.56 g.m(-2).min(-1) after the 1% PASP hydrogel was applied by 1.67 Lm(-2) (1 cm of crust). The soil water content was higher than the control due to the polymer's excellent water-retaining property. The polymer had no negative influence on seed germination and growth. The biodegradability experiment showed that PASP was easy to biodegrade and therefore it was safe to apply in the field.
引用
收藏
页码：1076 / 1081
页数：6
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