Preparation of hydrophilic reactive polyurethane and its application of anti-water erodibility in ecological restoration
Author:
Rong Xinshan12, Zhang Lu2, Zhang Xiaoying2, Liang Zhishui3, Wei Jing2, Wang Congyan2, Zhou Xiangtong12, Wu Zhiren12
Affiliation:
1. Institute of Environmental Health and Ecological Security , Jiangsu University , Zhenjiang 212013 , China 2. School of Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China 3. School of Civil Engineering , Southeast University , Nanjing 210096 , China
Abstract
Abstract
In this work, a novel hydrophilic reactive polyurethane (HRPU) material and HRPU-based composite materials were prepared and used as chemical anti-water erodibility materials for Pisha sandstone. The compressive strength, surface hardness, penetrability and water contact angle were investigated. The results showed that the deformation rate of Pisha sandstone sprayed with HRPU/ethylene-vinyl acetate (EVA) material was approximately 15%, significantly larger than that of other Pisha sandstone samples, while the compressive strength was significantly improved, providing a good penetrability to form a hydrophobic consolidation layer, locking the water in soil. Meanwhile, the micro-morphology of Pisha sandstone was observed by scanning electron microscopy (SEM) images and the water retaining ability of HRPU/EVA material was discussed in detail. The results showed that the water content of Pisha sandstone sprayed with HRPU/EVA material could reach more than 20%, even after 16 h, which presented an excellent water retaining ability. In addition, the anti-water erodibility of Pisha sandstone with HRPU/EVA was improved to prevent soil and water loss, and provide some feasibility for growing plants. Therefore, it could provide a new material and idea to protect the Pisha sandstone area and other erosion areas.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Polymers and Plastics,General Chemical Engineering
Reference29 articles.
1. Li XY, Liu LY, Wang JH. Geomorphology 2004, 59, 3–11. 2. Yang FS, Cao MM, Li HE, Wang XH, Bi CF. Ecol. Eng. 2013, 52, 228–237. 3. Zhen Q, Zheng J, He H, Han F, Zhang X. Chemosphere 2016, 144, 2214–2220. 4. Yang FS, Bi CF, Cao MM, Li HR, Wang XH, Wu W. Ecol. Eng. 2014, 71, 21–31. 5. Zhang K, Xu M, Wang Z. J. Hydro-Environ. Res. 2009, 3, 77–84.
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|