相关实验视频
Updated: Sep 11, 2025

Methane Hydrate Crystallization on Sessile Water Droplets
Published on: May 26, 2021
无爆发囊的湿度学特性建模和热力学分析
Shuo Li1, Hui Ge1, Hongqiang Wang2
1Huabao Flavors and Fragrances Co., LTD, Shanghai, 201821, China.
无囊在37°C以上失去活力. 最佳的储存要求湿度低于61%的相对湿度 (RH),以防止吸附水分并保持产品的完整性. 这项研究指导了保质期的保护.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 无囊面临着由于纹理变化和粘附而导致的保质期挑战.
- 了解水分吸附对于保持产品质量和完整性至关重要.
研究的目的:
- 为了研究无囊的热稳定性和水分吸附行为.
- 确定最佳的储存条件,以保持囊质量和延长保质期.
主要方法:
- 在不同温度 (25°C,32°C,37°C) 的储存实验.
- 异热水分吸附分析和吸附动力学在68%的RH时.
- 使用史密斯和GAB方程进行建模.
- 减弱总反射里埃变换红外光谱学 (ATR-FTIR) 和扫描电子显微镜 (SEM).
主要成果:
- 囊在温度≥37°C时失去了商业可行性.
- 湿度吸附异热体遵循II型模式,最适合史密斯 (25°C,37°C) 和GAB (32°C) 模型.
- 最佳的储存湿度低于61%的相对湿度.
- 吸附在2小时内达到和,遵循第一阶动力学.
- 在ATR-FTIR检测中,发现了水分结合点,而SEM显示了结构变化.
结论:
- 湿度敏感性显著影响无囊的质量.
- 建议储存条件低于61%的RH,温度低于37°C.
- 热力学分析表明一种由度驱动的,非自发的吸附过程.
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