Effect of filler orientation on mechanical and thermal properties of microwave absorbent 3D printed polycaprolactone/carbonyl iron particle composites

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-02 DOI:10.1177/09544054241249226

Usharani Rath, P. M. Pandey

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引用次数: 0

Abstract

A thorough investigation was conducted in the present work on the mechanical and thermal characteristics of polycaprolactone/carbonyl iron particle composites. For composite fabrication, 3D printing technique was utilized. The fabricated composites were categorized as oriented, non-oriented and polycaprolactone samples based on orientation and concentration of filler particle. To evaluate the effect of orientation of carbonyl iron particle, two orientation directions, viz. parallel orientation, and perpendicular orientation with respect to loading direction were tried. The sample with parallel orientation exhibited the highest tensile strength followed by 90° orientation and pure polycaprolactone samples respectively. Oriented composites exhibited elevated dynamic modulus in comparison to the composites without orientation. The oriented composites demonstrated stiffness and tensile strength in the order of 13.66 ± 0.94 MPa and 3.79 ± 0.26 MPa respectively. The proposed methodology in the present study can be used to align carbonyl iron fillers in polymer matrix to tailor the mechanical, viscoelastic, and degradation properties.

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填料取向对微波吸收三维打印聚己内酯/羰基铁颗粒复合材料机械性能和热性能的影响

本研究对聚己内酯/羰基铁颗粒复合材料的机械和热特性进行了深入研究。复合材料的制造采用了三维打印技术。根据填料颗粒的取向和浓度，将制成的复合材料分为取向、无取向和聚己内酯样品。为了评估羰基铁颗粒取向的影响，尝试了两个取向方向，即相对于加载方向的平行取向和垂直取向。平行取向样品的拉伸强度最高，其次分别是 90° 取向和纯聚己内酯样品。与未取向的复合材料相比，取向复合材料的动态模量更高。定向复合材料的刚度和拉伸强度分别为 13.66 ± 0.94 兆帕和 3.79 ± 0.26 兆帕。本研究中提出的方法可用于调整聚合物基体中的羰基铁填料，以定制其机械、粘弹性和降解性能。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.