对Ni/Y2O3/多乳酸复合物的研究
Tilen Švarc1, Matej Zadravec1, Žiga Jelen1
1Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
Materials (Basel, Switzerland)
|July 29, 2023
概括
这项研究用超声波喷雾热解合成了/亚氧化物 (Ni/Y2O3) 纳米复合物颗粒. 这些颗粒成功地被纳入聚乳酸 (PLA) 中,用于注塑应用.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 复合材料 复合材料 复合材料
背景情况:
- 开发新的纳米复合材料对于先进制造至关重要.
- /氧化物 (Ni/Y2O3) 为材料增强提供了独特的特性.
- 聚乳酸 (PLA) 是一种可生物降解的聚合物,具有复合材料应用的潜力.
研究的目的:
- 为了合成Ni/Y2O3纳米复合材料颗粒.
- 将这些颗粒纳入用于复合材料开发的PLA矩阵.
- 评估由此产生的复合材料的可加工性和机械性能.
主要方法:
- 通过超声波喷雾溶解进行超声波辅助沉,用于Ni/Y2O3合成.
- 聚烯利 (PVP) 用作水溶中的稳定剂.
- 传输电子显微镜 (TEM) 和电子衍射用于材料特性.
- 用于干燥的Ni/Y2O3悬浮液的冷化.
- 将Ni/Y2O3嵌入PLA矩阵中,然后进行挤出和注塑.
主要成果:
- 成功合成了平均直径为466nm的Ni/Y2O3纳米复合物颗粒.
- 通过TEM和电子衍射确认Y2O3核心和Ni外结构.
- PLA/Ni/Y2O3复合材料通过挤出和注塑成功加工.
- 柔性测试显示,与纯PLA相比,柔性强度 (8.55%) 和破裂时的应变 (3.7%至3.3%) 略有下降.
结论:
- Ni/Y2O3纳米复合物颗粒可以有效地合成并纳入PLA.
- 开发的PLA/Ni/Y2O3复合材料适用于注塑.
- 需要进一步的研究来探索这些纳米复合材料的全部潜力和应用.
相关概念视频
Ziegler–Natta Chain-Growth Polymerization: Overview
3.4K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
3.4K
Types of Step-Growth Polymers: Polyesters
2.3K
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...
2.3K
Characteristics and Nomenclature of Copolymers
2.6K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
2.6K


