Preparation of hydrophilic reactive polyurethane and its application of anti-water erodibility in ecological restoration
-
Xinshan Rong
and
Zhiren Wu
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.
Acknowledgements
This work was supported by State Key Research Development Program of China (2016YFC0502002 and 2017YFC0504505).
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/polyeng-2019-0113).
© 2019 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Material properties
- Chitosan as an emerging object for biological and biomedical applications
- Investigation of the properties of polystyrene-based wood plastic composites: effects of the flame retardant loading and magnetic fields
- An attempt to correlate the physical properties of fossil and subfossil resins with their age and geographic location
- Effect of heat treatment on the thermophysical properties of copper-powder-filled polycarbonate and polycarbonate containing paraffin
- Preparation and assembly
- Preparation of hydrophilic reactive polyurethane and its application of anti-water erodibility in ecological restoration
- Antimicrobial gelatin/sericin/clay films for packaging of hygiene products
- Functional sol-gel coated electrospun polyamide 6,6/ZnO composite nanofibers
- Influence of the incorporation of different chemically functionalized carbon nanotubes in polyurethane resin applied on aluminum
- Engineering and processing
- Influence of shrinkage of polymer on the stationarity of propagation of frontal polymerization heat waves
- Influence of titanium oxide-based colourants on the morphological and tribomechanical properties of injection-moulded polyoxymethylene spur gears
