从小麦茎中制造出可生物降解超吸收聚合物的新型制造,用于保持水和持续释放肥料
Yang Chenxi1,2,3,4,5, Wang Jian1,2,3,4, Wang Yingguo1,2,3,4
1Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd China 1098002212@qq.com.
RSC advances
|March 28, 2025
概括
来自小麦茎,聚烯酸和聚烯胺的新型生物降解超吸收材料改善了水的保留和控制尿素释放,以实现高效的农业.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 传统的灌方法在用水效率方面存在局限性.
- 现有的留水剂面临着成本效益和生物降解性的挑战.
研究的目的:
- 开发一种具有成本效益和可生物降解的超吸收材料,以改善农业的水和肥料管理.
- 评估新材料的吸水能力,水容量,尿素持续释放和土壤降解特性.
主要方法:
- 使用小麦茎 (WS) 和聚烯酸 (PAA) -聚烯胺 (PAM) 通过聚合制造制造一种超吸收材料.
- 在脱离离子和盐溶液中评估水的吸收.
- 分析水扩散动力学和胀行为.
- 评估尿素的持续释放特性和土壤退化.
主要成果:
- WS/PAA-PAM 显示了高吸水率 (273.54 g/g 在脱离离子水中, 44.54 g/g 在盐溶液中).
- 水的扩散遵循了Fickian模型,胀遵循了第一阶段的动力学;在三次重新膨胀周期后,材料保留了特性.
- 有效控制尿素释放,最大限度地减少排水,促进持续的营养物质供应.
结论:
- WS/PAA-PAM是一个有前途的,具有成本效益的,可生物降解的水和肥料管理解决方案.
- 该材料提供了一种可行的策略,用于提高农业中水和肥料利用效率.
相关概念视频
01:27Bioplastics
47
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
47
01:25Production of Organic Acids
66
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
66