相关实验视频

Updated: Jun 4, 2025

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

高密度聚乙烯/酸复合材料的制备和表征

Evangelia Tarani¹, Myrto Tara², Christina Samiotaki²

¹Laboratory of Advanced Materials and Devices, Department of Physics, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece.

|December 17, 2024

概括

高密度聚乙烯 (HDPE) 被增强了天然抗氧化剂酸 (TA),以创建先进的复合材料. 这些HDPE/TA复合材料显示出有前途的抗氧化能力,尽管TA含量更高会影响机械强度.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
生物材料工程生物材料工程

背景情况:

高密度聚乙烯 (HDPE) 是一种广泛使用的热塑性塑料.
结合天然抗氧化剂可以增强聚合物特性.
酸 (TA) 是一种生物基聚,具有显著的抗氧化活性.

研究的目的:

为了准备和描述HDPE/TA复合材料.
评估TA作为HDPE中的生物基填充剂的抗氧化潜力.
研究TA结合对HDPE结构性,热性,机械性和抗氧化性能的影响.

主要方法:

融混合工艺以制造具有不同TA含量 (1-20%重量) 的HDPE/TA复合材料.
使用红外光谱学,差分扫描热量计 (DSC),X射线衍射 (XRD) 和热重力测量分析 (TGA) 的表征.
对抗氧化物质性能和机械性能的评估.

主要成果:

通过光谱和衍射分析证实了TA在HDPE矩阵中的成功结合.
TGA表明热降解的开始有所减少,但整体稳定性令人满意.
复合材料表现出异常的抗氧化特性,特别是在更高的TA度下.
观察到高TA含量对机械性能产生不良影响.

结论:

HDPE/TA复合材料提供了一条可行的途径,以增强HDPE的天然抗氧化性能.
酸有效地作为生物基填充剂,赋予抗氧化能力.
需要优化,以平衡HDPE/TA复合材料中的抗氧化剂增强与机械完整性.

关键词:

这是一种HDPE.抗氧化剂活性抗氧化剂活性生物基填充剂是一种生物基填充剂.复合材料复合材料是一种复合材料.结晶运动学的结晶动力学坦尼克酸是一种酸.热稳定性的热稳定性

更多相关视频

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Published on: September 19, 2020

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

Published on: February 6, 2016

相关概念视频

Types of Step-Growth Polymers: Polyesters

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 Classification: Architecture

Polymer Classification: Architecture

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...