通过通过冷等离子体和电子束辐射的连续处理,通过协同修饰来增强粉的功能
Mirela Braşoveanu1, Hassan Sabbaghi2, Dorina Ticoș1
1National Institute for Laser, Plasma and Radiation Physics, 409 Atomiştilor St., PO Box MG-36, 077125 Măgurele, Romania.
International journal of biological macromolecules
|May 16, 2024
概括
使用射频等离子体 (RF) 和电子束辐射 (EBI) 进行的双重修饰协同增强了粉的特性,如溶解性和清晰度. 这种结合的方法,特别是与等离子体预处理,提高了辐射灵敏度,可能降低成本和扩大粉应用.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 聚合物化学 聚合物化学
背景情况:
- 粉修饰对于各种工业应用至关重要.
- 无线电频率 (RF) 等离子体和电子束辐射 (EBI) 是已知的物理修饰技术.
- 研究连续处理的协同效应可以优化粉的特性.
研究的目的:
- 调查顺序射频等离子体和EBI对粉性质的协同影响.
- 为了比较双疗法与单疗法在不同的辐射剂量 (5-20 kGy).
- 为了确定协同修改的最佳序列和剂量.
主要方法:
- 用射频等离子体和EBI对粉的连续处理.
- 对粉属性的分析,包括酸度,可溶性,糊的清晰度,质和分子量分布.
- 辐射化学产量 (G) 和降解速率常数 (k) 的确定.
- 描述光谱特性,晶体结构,颗粒形态和表面地形.
主要成果:
- 双重处理协同增加了粉的酸度,溶解度和糊的清晰度,同时降低了质性质.
- 氨基胺的分布扩大,氨基的分布缩小,带有EBI诱导的降解和RF等离子诱导的重新排列.
- 协同效应取决于剂量,最显著的是高达10kGy,RF血预处理显示出更高的效率.
- 观察到光谱特征和晶体结构的轻微变化,但增加了颗粒聚合和表面不规则.
结论:
- 连续的射频等离子和EBI处理为粉修饰提供了协同效益.
- 血预处理之后的EBI是一种高度有效的组合,可以增强粉的特性.
- 这种协同方法可以减少辐射剂量,降低成本,并扩大粉的技术应用.
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