Initial Study on Rheological Behaviour of Hydroxyapatites / Polylactic Acid Composite for 3D Printing Filament

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-20 DOI:10.15282/ijame.21.1.2024.10.0856

Afeeqa Puteri Marzuki, Mohd Alfiqrie Mohd Nasir, Farrahshaida Mohd Salleh, Muhammad Hussain Ismail, B. Murat, Marzuki Ibrahim

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引用次数: 0

Abstract

The present fused deposition modeling (FDM) printing process has concentrated on combining metal or ceramic filled with polymer because it could provide a strong composite in layered manufacturing technology in comparison to a single polymer material. However, the ability of the composite material to flow into the extruder becomes an obstacle because of the changes in the polymer concentration and dispersion of filler particles in producing the printed part. Hence, the rheological behavior of Hydroxyapatites (HAp) / Polylactic Acid (PLA) composite with different contents of HAp was studied to assess its ability to flow through the extruder during the 3D printing process. Measurements such as pycnometer density, thermal analysis (DSC) and FT-IR were performed on the composite feedstock containing a variation of 10% to 30% HAp powder. The feedstocks behavior then were characterized by rheological tests at three different temperatures (140 oC, 150 oC, and 160 oC). The composition of PLA/20HAp has produced optimum rheological behavior with effective flow behavior index (n) and activation energy (E) of 0.396 and 89.03 kJ/mol, respectively which is suitable for extruding out the HAp/PLA composite to become a 3D printing filament material.

查看原文本刊更多论文

用于 3D 打印丝的羟基磷灰石/聚乳酸复合材料流变行为初步研究

目前的熔融沉积建模（FDM）打印工艺主要是将金属或陶瓷填充到聚合物中，因为与单一聚合物材料相比，这种材料可以在分层制造技术中提供一种坚固的复合材料。然而，在生产打印部件时，由于聚合物浓度和填料颗粒分散性的变化，复合材料在挤出机中的流动能力成为一个障碍。因此，我们研究了不同HAp含量的羟基磷灰石（HAp）/聚乳酸（PLA）复合材料的流变行为，以评估其在三维打印过程中流经挤出机的能力。对含有 10%-30%HAp粉末的复合原料进行了密度计密度、热分析（DSC）和傅立叶变换红外光谱等测量。然后在三种不同温度（140 摄氏度、150 摄氏度和 160 摄氏度）下进行流变测试，对原料的行为进行表征。聚乳酸/20HAp 成分产生了最佳流变行为，其有效流动行为指数（n）和活化能（E）分别为 0.396 和 89.03 kJ/mol，适合将 HAp/PLA 复合材料挤出成为 3D 打印丝材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.