超弹性酸@Resorcinol形式甲树脂核心外纳米带气凝单体,具有卓越的阻燃和绝热能力
Fuzhong Li1,2,3, Jiabei Song1, Yutong Niu1
1Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, 422 Siming South Road, Xiamen, 361005, China.
Small (Weinheim an der Bergstrasse, Germany)
|August 26, 2023
概括
现在,Resorcinol formaldehyde树脂 (RFR) 气凝表现出超弹性和增强的耐热/耐火性. 这一突破是通过一种新的模板导向方法实现的,用于酸 (CS) @RFR核心纳米带气凝.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 聚合物化学 聚合物化学
背景情况:
- 由于机械性能差,Resorcinol formaldehyde树脂 (RFR) 气凝具有有限的实际应用.
- 开发机械坚固和功能性气凝对于先进的材料应用至关重要.
研究的目的:
- 制造超弹性的树脂甲 (RFR) 气凝,具有增强的隔热和耐火性.
- 研究一种简单的模板导向方法来制造酸 (CS) @RFR核心外纳米带气凝.
主要方法:
- 一个模板导向的合成,涉及RFR在预制酸 (CS) 纳米带上的聚合.
- 在现场形成水凝单体,然后冷干燥以获得最终的气凝结构.
主要成果:
- 合成的CS@RFR核心外纳米带气凝表现出超弹性行为,承受其重量的4000倍以上.
- 气凝在1000个压缩周期中表现出极好的隔热,耐火性和机械稳定性.
- 特殊的机械性能归因于纳米带的灵活性和RFR增强的交叉连接.
结论:
- 这项工作提出了一种生产超弹性基于RFR的气凝的有效策略.
- 开发的CS@RFR气凝显示出在隔热,储能和催化剂支持方面的应用潜力很大.
相关概念视频
Fiber Reinforced Concrete
102
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
102
Thermal Insulation in Masonry Walls
147
In hot, dry climates, the thermal mass of masonry walls can be beneficial, absorbing heat during the day and releasing it at night, thereby stabilizing indoor temperatures. However, in most other climates, additional insulation is necessary to enhance thermal resistance.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
147


