胺酸盐作为阻燃添加剂在含有羽的热塑性聚氨生物复合材料中的潜在用途
Aysenur Mutlu1, Aysegul Erdem2, Mehmet Dogan2
1Department of Textile, Apparel and Leather Van Vocational School of Higher Education, Yuzuncu Yıl University, 65080 Van, Turkey.
ACS omega
|July 24, 2023
概括
的羽毛 (CF) 和胺酸盐 (MPht) 创造了可持续的生物复合材料. 在基于热塑性聚氨 (TPU) 的复合材料中,MPht显著提高了阻燃性,达到V0等级.
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
- 可持续材料 可持续材料
背景情况:
- 在复合材料生产中,对可持续材料的需求日益增加.
- 使用废物材料,如羽毛 (CF) 进行环保应用.
- 在聚合物复合材料中需要有效的生物基阻燃剂.
研究的目的:
- 为了研究含有CF的热塑性聚氨 (TPU) 基生物复合材料中胺酸盐 (MPht) 的阻燃性能.
- 评估CF和MPht对TPU阻燃性的协同作用.
- 了解MPht在这些生物复合材料中的阻燃机制.
主要方法:
- 制备基于TPU的生物复合材料,其中CF和MPht的度各不相同.
- 使用热重力度分析 (TGA) 进行表征.
- 通过限制氧指数 (LOI),垂直UL-94 (UL-94 V) 试验和质量损失热量计 (MLC) 来评估阻燃性.
主要成果:
- 添加20重%的MPht导致最高UL-94 V评级V0.0的结果.
- 观察到LOI显著增加至29.4%,其中20重%的MPht.
- 最低的峰值热释放率 (pHRR) 为110 Kw/m2和总热演化率 (THE) 为39 MJ/m2,在20 wt% MPht.时实现.
结论:
- 胺酸盐 (MPht) 是一种高效的阻燃添加剂,用于含有羽毛 (CF) 的基于TPU的生物复合材料.
- MPht的功能是通过促进凝结阶段的热炭形成和气相中的火焰稀释来发挥作用.
- 这些发现突出了使用废物和生物基添加剂开发阻燃生物复合材料的可持续方法.
相关概念视频
Anionic Chain-Growth Polymerization: Overview
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
Types of Step-Growth Polymers: Polyesters
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 polymer...
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 polymer...
Plasticizers
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Superplasticizers
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,...
Additives and Fillers in Concrete
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...


