杀菌方法对棉花压缩机的化学和物理机械性能的影响
Maja Somogyi Škoc1, Jana Juran1, Iva Rezić2
1Department of Materials, Fibres and Textile Testing, Faculty of Textile Technology, University of Zagreb, 10000 Zagreb, Croatia.
Molecules (Basel, Switzerland)
|August 10, 2024
概括
绝育方法没有改变棉花气压缩剂的化学或形态. 然而,增加的宏分子长度 (DP) 和降低的湿强度表明了绝育过程的微妙损伤.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 生物医学工程 生物医学工程
背景情况:
- 软压缩剂是用天然棉纤维制成的必需医疗用品.
- 灭菌对于确保医疗器械安全至关重要.
- 了解灭菌对棉花特性的影响对于质量控制至关重要.
研究的目的:
- 评估不同灭菌方法对棉压缩剂的化学和物理机械性能的影响.
- 为了识别任何可能因绝育而对棉纤维造成的损害.
主要方法:
- 化学测试包括pH值,黄色,费林反应,特恩布尔蓝色,甲蓝色染色和酸胀.
- 使用扫描电子显微镜 (SEM) 进行形态分析.
- 使用FTIR-ATR进行光谱分析,并确定宏分子长度 (DP).
- 物理机械测试,包括湿强度和膨胀能力.
主要成果:
- 化学和形态测试显示,在绝育后,棉花压缩剂没有显著的变化.
- FTIR-ATR光谱检测证实,棉带的特征没有发生变化.
- 增加的宏分子长度 (DP) 和降低的湿强度 (低于100%) 表示微妙的损伤.
- 膨胀能力下降的顺序是:非消毒 > 乙烯氧化物 > 蒸汽消毒.
结论:
- 虽然没有检测到可见的化学和形态损伤,但绝育过程确实会影响棉纤维.
- 增加DP和降低湿强度表明棉花大分子的降解.
- 这些发现为制造商提供了关于杀菌对天然纤维的影响的科学数据.
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