多功能巴加斯泡通过氧诱导的自组装和环境压力干燥技术改善了保温和阻燃性
Xin Zhang1, Lei Han1, Haijun Zhang1
1The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China.
ACS applied materials & interfaces
|March 8, 2024
概括
在这项研究中,从农业废物 - - 包中开发出强度高,阻燃性强的纤维素泡. 这些环保泡提供了更好的隔热,并可以取代塑料.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 可持续化学 可持续化学
背景情况:
- 纤维素泡为塑料泡提供了可持续的替代品,因为它们的密度低,多孔度高和可再生性质.
- 目前的纤维素泡面临的挑战包括复杂的加工,不良的机械性能和易燃性.
- 富含纤维素的农业废物巴加斯是泡生产的有前途的原料.
研究的目的:
- 设计和制造多功能包衍生纤维素泡.
- 为了提高纤维素泡的机械强度,隔热和阻燃性.
- 为大规模生产纤维素泡开发一种环保且具有成本效益的方法.
主要方法:
- 作为主要的纤维素来源,采用了包油.
- 使用玻作为交联剂来诱导纤维素的自我组装.
- 作为添加剂和使用大气压干燥的纳入奇托.
- 研究了酸盐交叉连接对泡特性的影响.
主要成果:
- 制造的多功能包泡具有强大的强度和改进的性能.
- 优化的泡实现了93.5%的多孔性和150.4°的疏水水接触角.
- 证明了低的导热率 (63.4 mW/(m·K)) 和出色的阻燃性.
- 成功地利用酸交叉连接来提高泡性能.
结论:
- 建立了一种新的,具有成本效益和环保的方法,用于从包中生产增强纤维素泡.
- 开发的包泡具有卓越的机械,热和阻燃性能.
- 这种方法为可持续材料开发和废物利用提供了一个有希望的途径.
相关概念视频
01:09Turbulent Flow: Problem Solving
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
01:18Bioreactor Controls-II
In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...