一种基于酸盐的新型无机阻燃和隔热涂层和性能分析
Guoshuai Cai1, Jiaxuan Wu2, Jiayi Guo1
1School of Safety Science and Engineering, Civil Aviation University of China, 2898 Jinbei Road, Tianjin 300300, China.
Materials (Basel, Switzerland)
|July 14, 2023
概括
这项研究开发了一种新的无机阻燃涂层,使用酸改性纳米,空心珠,空心玻璃微球和碳化物. 优化的涂层 (AP2231) 显示出优越的耐火性和绝热性,在建筑和运输中具有潜在的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 消防安全工程 消防安全工程
- 无机化学 无机化学 有机化学
背景情况:
- 目前的薄层可扩展涂层主要以聚合物为基础,这限制了它们的环境友好性和高温性能.
- 由于其固有的环境益处和优越的耐火性,因此对先进的无机可扩展涂层有很大的需求.
- 基于酸的材料为开发新型阻燃和绝热涂料提供了有希望的基础.
研究的目的:
- 开发和描述一种基于酸的新型无形酸阻燃涂层.
- 研究纳米二氧化,空心二氧化珠,空心玻璃微球和碳化作为填充剂的协同效应.
- 阐明开发涂料阻燃性和隔热性能背后的机制.
主要方法:
- 用四种不同的填充剂修改的无形酸基涂料的制备.
- 综合测试包括大板燃烧,粘合强度,XRD,IR,TG-DSC和SEM分析.
- 系统地改变填充剂比率,特别是玻璃微球与碳化,以优化性能.
主要成果:
- 四种填充剂的协同效应是显而易见的,AP22XY涂料的性能根据填充剂比率而异.
- AP2231涂层,其玻璃微球与碳化物比率为 3:1,显示出最佳的耐火性,后侧温度最高达到226°C,在60分钟的强烈火焰暴露后稳定在175°C.
- AP2231表现出优异的粘合强度 (约. 4.5 MPa) 在燃烧后,由于玻璃酸盐,Al18B4O33和空心玻璃微球的优化形成.
结论:
- 开发的基于无机酸的涂层具有出色的阻燃性和绝热性能.
- AP2231的最佳性能归因于涂层泡/可扩展性,多个内热反应和碳化物的贡献.
- 这种涂层显示出在结构钢保护,基础设施防火和电池防火安全方面的应用潜力很大.
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