期刊
CARBOHYDRATE POLYMERS
卷 256, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.117429
关键词
Cationic starch; Sodium lignosulfonate; Humic acid; Secondary spraying process; Liquid mulching film
资金
- Shandong Provincial Key Research & Development Project, China [2019GSF109110]
- Shandong Provincial Natural Science Foundation, China [ZR2017MB040]
An eco-friendly dust suppression and sand-fixation liquid mulching film was prepared via a simple secondary spraying process by blending water polyurethane with dissolved humic acid. The synthesized film showed good UV resistance, thermal stability, erosion resistance, and biodegradability, meeting the demand of dusty areas and desertification environments.
An eco-friendly dust suppression and sand-fixation liquid mulching film was prepared via a facile secondary spraying process in this work. Water polyurethane (WPU) was blended with dissolved humic acid (HA) firstly, and then the blend solutions (HWPU) were sprayed on the surface of cationic starch (CS) / sodium lignosulfonate (LS) film to synthesize the liquid mulching film (CLS-HWPU). The effects of liquid mulching film composition on mechanical properties in dry and wet states were investigated. The results showed that the optimal composition of liquid mulching film was: 3% (CS), 0.9 % (LS), 1.5 % (glycerol), 2% (HA), and 30 % (WPU). The CLS-HWPU liquid mulching films were characterized in terms of light transmittance, degradation performance test, contact angle test, scanning electron microscopy (SEM), total reflectance-Fourier transform infrared spectrometer (ATR-FTIR), thermo gravimetric analysis (TGA), and erosion resistance test. The results indicated that the CLS-HWPU film had good UV resistance, thermal stability, anti-erosion, and biodegradation. The CLS-HWPU film meets the demand of dust suppression and sand-fixation in dusty areas and desertification environments, which opens a new application field for liquid mulching film with high safety and environmental protection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据