FDM处理聚乳酸在牛血清中的滑动磨损特性

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-15 DOI:10.15282/jmes.13.4.2019.10.0466

B. Arifvianto, A. Putra, B. T. Prayoga, R. Dharmastiti, U. A. Salim, M. Mahardika, Suyitno .

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引用次数: 3

摘要

迄今为止，熔融沉积建模(FDM)以其可靠性和简单性为3D打印技术制造几何复杂聚合物材料的公认。最近，关于使用FDM制造的材料性能的研究越来越多，其中包括与耐磨性相关的研究，当3d打印材料在应用过程中必须在另一种材料的表面滑动时，耐磨性被认为是至关重要的。然而，到目前为止，包括光栅取向在内的几个fdm打印参数对打印聚合物材料耐磨性的影响尚未完全了解。本研究测定了光栅取向对fdm加工的聚乳酸(PLA)材料在牛血清中耐磨性的影响。使用往复式销板摩擦计来评估在商业纯钛(Ti)板表面滑动的圆柱形PLA销的耐磨性。结果表明，单向光栅取向的fdm打印PLA引脚的磨损因子WF(~1.5´10-4 mm N-1 m-1)高于交叉光栅取向的WF(~0.8´10-4 mm N-1 m-1)。与此同时，Ti表面与具有交叉栅格取向的PLA销滑动时的WF值(~0.09´10-4 mm N-1 m-1)也显著低于与具有单向栅格取向的PLA销滑动时的WF值(0.34 ~ 0.41´10-4 mm N-1 m-1)。磨损表面形貌分析结果表明，表面磨损、疲劳和聚合物膜转移是fdm加工PLA销及其Ti反表面材料的可能磨损机制。综合以上研究结果，可以得出交叉栅格取向比单向栅格取向更适合作为耐磨聚乳酸打印的参数之一。

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Sliding wear characteristics of FDM-processed polylactic-acid in bovine blood serum

Fused deposition modelling (FDM) has so far been recognized for its reliability and simplicity for manufacturing of geometrically-complex polymeric materials with 3D printing technique. Recently, the studies concerning the properties of materials fabricated by using the FDM have been growing, including those related to their wear resistance which is considered of critical when a 3D-printed material must work sliding over the surface of another material during its application. Up to now, however, the influence of several FDM-printing parameters, including the raster orientations, on the wear resistance of the printed polymeric materials have not yet been fully understood. In this research, the influence of raster orientations on the wear resistance of FDM-processed polylactic-acid (PLA) materials in bovine blood serum were determined. A reciprocating pin-on-plate tribometer was used to evaluate wear resistance of a cylindrical PLA pin that slid over the surface of a commercially-pure titanium (Ti) plate. The results showed that the FDM-printed PLA pins with unidirectional raster orientations had higher wear factors (WF), i.e., ~1.5 ´ 10-4 mm N-1 m-1 than those with crossed raster orientations, i.e., ~0.8 ´ 10-4 mm N-1 m-1. Meanwhile, the WF values of Ti surface that slid against PLA pin with crossed raster orientations, i.e., ~0.09 ´ 10-4 mm N-1 m-1, were also significantly lower than those sliding with the pin having unidirectional raster orientation, i.e., 0.34 – 0.41 ´ 10-4 mm N-1 m-1. The result of analysis of the worn surface morphologies shows the indications of surface abrasion, fatigue and polymer film transfer as the possible wear mechanisms of both the FDM-processed PLA pin and its Ti countersurface material. On the basis of all the findings in this research, it can be concluded that the crossed raster orientation is preferable to be used as one of the parameters in printing of the wear resistant PLA rather than the unidirectional raster orientation.

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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.