可生物降解的聚 (丁烯基酸盐-协同甲) /聚乳酸覆膜含有氨酸酸加载的多层双氧化物:提高性能,除草剂性能和延长功能寿命
Bing Zhang1, Kun Zhang2, Xianfei Jia1
1College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong 271018, China.
International journal of biological macromolecules
|February 28, 2025
概括
由聚乙烯基合甲基 (PBAT) 和聚乳酸 (PLA) 制成的可生物降解的覆盖薄膜被用酸加载的多层双化物纳米薄膜 (Glu@LDH) 增强. 这些新片为可持续农业提供了更好的耐用性和保湿性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 农业科学 农业科学
背景情况:
- 生物降解的覆盖膜,如聚乙烯基酸盐-协同甲酸盐 (PBAT) 基膜,对于提高作物产量和减少塑料废物至关重要.
- 现有的PBAT薄膜由于杂草损伤和快速降解而遭受机械脆弱,导致保留水分的损失.
- 在农业应用中,需要增强生物降解的覆盖膜,以扩展功能和耐用性.
研究的目的:
- 开发具有改进的机械性能,保持水分和寿命的新型生物降解覆膜.
- 为了研究将含有酸盐和的纳米层双化物纳米片 (Glu@LDH) 纳入PBAT/聚乳酸 (PLA) 混合物的效果.
- 评估酸-的持续释放及其对除草有效性和薄膜耐用性的影响.
主要方法:
- 制备PBAT/PLA复合材料覆膜,其中含有不同载荷的含有酸盐和的纳米层双氧化纳米薄膜 (Glu@LDH).
- 准备的薄膜的机械性能,水蒸气保留和降解行为的表征.
- 评估从薄膜中持续释放的葡萄酸,并评估它们在野外测试中的除草有效性和寿命.
主要成果:
- 将3重%的Glu@LDH (含有10%的Glu) 添加到PBAT/PLA薄膜中,显著提高了机械强度和水蒸气保留.
- 复合膜显示出异常持续释放的酸-,从而提高了杂草控制.
- 在杂草控制测试中,增强的薄膜在76天内保持完整性,这表明功能寿命显著延长.
结论:
- 将Glu@LDH纳米片纳入PBAT/PLA覆盖膜是一种有效的策略,可以提高其机械性能,保持水分和功能寿命.
- 开发的复合膜通过持续释放活性剂,提供有效的杂草控制,有助于农业的可持续性.
- 这种方法为减少塑料垃圾,提高作物生产效率和降低农业成本提供了有希望的解决方案.
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