相关实验视频
Updated: Jun 11, 2025

05:58
Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
6.5K
用芳香化合物合的焦糖作为羊毛织物无素和的阻燃策略
Sheng-Nan Ma1, Jin-Ping Guan1, Xian-Wei Cheng1
1Key Laboratory of Flame Retardancy Finishing of Textile Materials (CNTAC), College of Textile and Clothing Engineering, Soochow University, 199 Ren'ai Road, Suzhou 215123, China.
International journal of biological macromolecules
|September 30, 2024
概括
研究人员开发了一种新型的,环保的阻燃剂,由焦糖和芳香化合物用于羊毛织物. 这种生物基处理提高了消防安全,而不会影响织物质量或洗后的耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 聚合物化学 聚合物化学
背景情况:
- 织行业需要可持续的,不含素和的阻燃剂.
- 羊毛织物被广泛使用,但为了安全需要增强的阻燃性.
研究的目的:
- 为羊毛织物开发和评估一种新的生物基阻燃剂.
- 为了研究修改织物的阻燃性,耐用性和机制.
主要方法:
- 使用葡萄糖和p-phthaldialdehyde通过焦糖化和阿尔多尔反应合成一种改性焦糖 (Car@PDA).
- 将Car@PDA应用于羊毛织物,并评估阻燃性 (LOI,损坏的长度),洗耐用性和热性能.
- 对阻燃机制的分析,包括纤维阻燃相互作用和焦炭形成.
主要成果:
- 经过修改的羊毛织物表现出明显改善的阻燃性,氧气限制指数 (LOI) 为32.5%,损伤长度减少 (10.1厘米).
- 由于希夫基和静电相互作用,Car@PDA处理证明了出色的洗耐用性,在10个循环后达到B1阻燃标准.
- 观察到热释放能力降低和火灾增长率降低,这表明火灾安全性提高,对羊毛的抗拉强度和手柄的影响最小.
结论:
- 一种可持续的,生物基的,无和的阻燃剂 (Car@PDA) 已成功开发用于羊毛织物.
- 汽车@PDA修改提供了卓越的阻燃性和耐久性,为更安全的蛋白质基础织品提供了有前途的解决方案.
- 该研究强调了一种创新的方法,用于为织工业创造高性能,环保的阻燃剂.
相关概念视频
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
5.9K
Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.
5.9K
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
2.9K
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
2.9K
Halogenation of Alkenes
15.4K
Halogenation is the addition of chlorine or bromine across the double bond in an alkene to yield a vicinal dihalide. The reaction occurs in the presence of inert and non-nucleophilic solvents, such as methylene chloride, chloroform, or carbon tetrachloride.
Consider the bromination of cyclopentene. Molecular bromine is polarized in the proximity of the π electrons of cyclopentene. An electrophilic bromine atom adds across the double bond, forming a cyclic bromonium ion intermediate.
Consider the bromination of cyclopentene. Molecular bromine is polarized in the proximity of the π electrons of cyclopentene. An electrophilic bromine atom adds across the double bond, forming a cyclic bromonium ion intermediate.
15.4K
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
Aromatic Compounds: Overview
10.4K
In general, the term ‘aromatic’ indicates a pleasant smell or fragrance from fresh flowers, freshly prepared coffee, etc. In the early history of organic chemistry, many benzene derivatives were isolated from the pleasant odor oils of the plants. For example, vanillin was isolated from the oil of vanilla, methyl salicylate from the oil of wintergreen, and cinnamaldehyde from the oil of cinnamon. They all had a pleasant odor; hence the name aromatic was given.
In 1825, Faraday...
In 1825, Faraday...
10.4K
Halogens
18.3K
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group.
18.3K

