相关实验视频
Updated: Jun 12, 2025

05:58
Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
6.5K
单一的整体"H形"多功能化合物实现了棉织物的消防安全,耐用性,增强强度和烟雾抑制
Xin Jin1, Xu Li1, Chenghao Yang1
1College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China.
International journal of biological macromolecules
|September 22, 2024
概括
一种新的--阻燃剂 (TBST) 为棉织物开发,显著提高阻燃性和机械强度,同时减少烟雾和甲释放.
科学领域:
- 材料科学 材料科学 材料科学
- 织品化学 织品化学
- 聚合物科学 聚合物科学
背景情况:
- 传统的基阻燃剂用于棉织品,其强度降低,烟雾高,甲释放,耐久性差.
- 为织品开发有效和持久的阻燃剂仍然是一个重大挑战.
研究的目的:
- 为棉织物合成一种新的协同-- (P/N/B) 阻燃剂 (TBST).
- 评估TBST处理的棉花 (TBST/棉花) 的阻燃性能,燃烧行为和机械性能.
主要方法:
- 合成TBST使用酸,酸,酸和五甲基,原子比为2:3:1 P/N/B.
- 在棉织物上应用TBST,达到29.8%的体重增长率.
- 使用限制氧气指数 (LOI),垂直火焰测试,总热释放率 (THR) 和热释放率 (HRR) 评估火焰阻燃性.
- 通过剩余碳含量分析和拉伸强度测试来评估机械性能和热稳定性.
主要成果:
- TBST/棉花实现了41.6±0.3%的优异的LOI值,表明了优异的阻燃性.
- 与未经处理的棉花相比,观察到THR (58.4%) 和HRR (91.9%) 的显著降低.
- 在710°C时,TBST/棉花的剩余碳含量增加了27.79%,纵向机械强度增加了23.1%,体重增加了30%.
- 该研究推断了TBST/棉花的分解和阻燃机制.
结论:
- TBST/棉花表现出极好的阻燃性能和燃烧行为.
- 开发的阻燃剂增强了棉织物的机械性能和耐用性.
- P/N/B协同方法为高性能阻燃织品提供了一个有希望的战略.
相关概念视频
Fiber Reinforced Concrete
71
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...
71
Superplasticizers
81
Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...
81
Pozzolans
104
Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
Fly ash is...
Fly ash is...
104
Waterproofing and Anti-Bacterial Admixtures in Concrete
75
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
75
Mortar Properties
116
Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to...
116
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K

