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在宏观粒子上的工程电纳米结构涂层.

Majid N Soltani1,2, Rebecca V McQuillan1,2, Omid Mazaheri1,2

  • 1Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.

ACS applied materials & interfaces
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概括

电现在覆盖了复杂的粒子形状,增强了肥料释放控制. 这些先进的涂料提供统一的覆盖面和降低的透性,用于更好的农业应用.

关键词:
有控制释放的释放.电力旋转是指电力旋转.肥料肥料是一种肥料.宏观颗粒涂层是指宏观颗粒的涂层.尿素涂层是一种尿素涂层.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学工程是化学工程的重要组成部分.
  • 聚合物科学 聚合物科学

背景情况:

  • 电是一种多功能技术,用于生产具有增强性能的涂料.
  • 与平面基板相比,涂层非平面表面,如粒子,具有重大挑战.
  • 开发可控释放系统对于有效的农业实践至关重要.

研究的目的:

  • 在宏观粒子上设计电涂层.
  • 研究这些涂料的形态,机械和释放特性.
  • 评估电涂层作为可控释放肥料的潜力.

主要方法:

  • 在各种颗粒 (尿素颗粒,钢球,玻璃珠,岩) 上使用生物降解聚合物 (蜜蜂,聚烯酸) 进行电.
  • 通过调整仪器和溶液参数来控制涂层形态 (珠子,纤维或混合物).
  • 评估涂层性能,包括机械强度,疏水性,水蒸气透性和尿素释放动力学.

主要成果:

  • 在不同的粒子表面上实现均的电涂层覆盖.
  • 证明了可调节的涂层形态.
  • 与喷涂涂料相比,观察到水蒸气透率显著降低 (0.08 × 10-7 g m h-1 m-2 Pa-1) (0.13 × 10-7 g m h-1 m-2 Pa-1).与喷涂涂料相比,观察到水蒸气透率显著降低 (0.08 × 10-7 g m h-1 m-2 Pa-1).
  • 延长尿素释放时间从12天到26天,表明控制释放行为.

结论:

  • 电是一种可行的方法,用于涂覆具有可调节性质的非平面粒子.
  • 工程电涂层提供了优越的均性和降低的透性.
  • 这些涂层显示出开发有效的可控释放肥料系统的前景.