评估过面片呼吸器的弹性体头带的性能
Okrasa Małgorzata1, Cheberyachko Serhii2, Radchuk Dmytro2
1Department of Personal Protective Equipment, Central Institute of Labour Protection - National Research Institute (CIOP-PIB), Poland.
International journal of occupational safety and ergonomics : JOSE
|September 15, 2023
概括
过面部呼吸器 (FFR) 的重复使用会降低弹性头带的性能,降低保护. 由于显著的弹性损失和带延长,需要在八次使用后进行带调整.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 过面部呼吸器 (FFR) 对于呼吸保护至关重要.
- 频繁的穿戴和脱落可以通过变形弹性头带来损害FFR的有效性.
- 头带弹性的降解导致呼吸器适合性和保护因子降低.
研究的目的:
- 为了研究FFR头带在重复使用时的弹性损失.
- 量化着装和脱落周期对皮带性能的影响.
- 为设计更耐用,更有效的FFR提供信息.
主要方法:
- 测试了五条弹性带作为FFR头带.
- 经过重复的穿戴和脱落周期后,使用DU-100动力表测量了抗拉强度.
- 分析了皮带延长作为力和循环数的函数.
主要成果:
- 在八次连续使用后观察到保护因子的显著下降.
- 头带弹性损失和残余延长在八个周期后仍然保持一致.
- 确定了皮带延长,施加的力和穿戴/脱落周期的数量之间的关系.
结论:
- 弹性头带变形在重复使用时显著影响FFR的有效性.
- 了解皮带延长对于设计具有持续保护的改进FFR至关重要.
- 建议探索替代材料,以提高FFR性能和用户舒适度.
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