阻燃性皮革废弃物填充热塑性聚氨的生产和表征
Sumeyye Ustuntag1, Nida Cakir2, Aysegul Erdem3
1Department of Textile Engineering, Erciyes University, Kayseri 38039, Turkiye.
ACS omega
|March 4, 2024
概括
回收的皮革废物 (LW) 和有机酸盐 (OP) 制造出有效的,无素的阻燃性热塑性聚氨 (TPU). 这种可持续的方法提高了材料的安全性和性能,提供了环保的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续制造 可持续制造 可持续制造
背景情况:
- 对皮革废物 (LW) 等废物材料的利用对于可持续生产至关重要.
- 开发无素阻燃剂是一个环境优先事项.
- 热塑性聚氨 (TPU) 是一种多功能聚合物,需要增强的阻燃性.
研究的目的:
- 研究将皮革废料 (LW) 和有机酸盐 (OP) 作为热塑性聚氨 (TPU) 中的阻燃剂添加剂的有效性.
- 评估不同LW和OP度对TPU复合材料的热,阻燃和机械性能的影响.
- 了解TPU中LW和OP的阻燃机制.
主要方法:
- 热重力测量分析 (TGA) 用于评估热稳定性.
- 限制氧指数 (LOI) 和垂直UL-94 (UL-94 V) 测试用于燃烧性评估.
- 质量损失热度计和拉力测试,以确定热释放和机械性能.
主要成果:
- 使用20%重量%的OP实现了最佳的阻燃性能,获得了V0 UL-94评级,31.4%的LOI,并减少了热释放.
- 有机酸盐 (OP) 主要通过形成一种保护性的阴暗炭层来起作用.
- 皮革废弃物 (LW) 具有协同作用,释放非易燃气体并增加炭产量,显著改善消防性能指数 (FPI) 和火灾增长率 (FIGRA).
结论:
- LW和OP的组合为TPU提供了一个高效的,无素的阻燃系统.
- LW作为一种有价值的辅助剂,增强了OP的阻燃性能.
- 这项研究表明,使用回收皮革废物生产更安全的TPU材料的可持续方法.
相关概念视频
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
Free-Radical Chain Reaction and Polymerization of Alkenes
7.8K
The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
7.8K
Polymer Classification: Architecture
2.7K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
2.7K
Characteristics and Nomenclature of Homopolymers
3.0K
Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
3.0K
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)
2.6K
Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
2.6K


