Tailoring multiscale porosity in 3D printed food-based natural fiber composites

IF 1.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY MRS Communications Pub Date : 2024-06-25 DOI:10.1557/s43579-024-00584-x
Md Nurul Islam, Lee Smith, Sheldon Q. Shi, Yijie Jiang
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Abstract

Porous materials are pivotal in emerging fields like tissue engineering, scaffold, and drug delivery due to their distinctive porosity-driven functional properties. This paper describes how to achieve multiscale porosity in food-based composites through a thermally activated gelatinization process of amylopectin molecules coupled with 3D printing. By controlling printing paths, macropores are engineered, while degree of gelatinization governs micro- and nanopores formation. Process-microstructure relationship reveals that longer preheating treatments at higher gelatinization temperatures significantly reduce micro-pore area by over twofold and nanopore surface area by over threefold. These results provide a promising route to fabricate food-based composite with tailorable microstructures.

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在 3D 打印食品基天然纤维复合材料中定制多尺度孔隙率
多孔材料因其独特的多孔性功能特性,在组织工程、支架和药物输送等新兴领域举足轻重。本文介绍了如何通过直链淀粉分子的热激活糊化过程与三维打印技术相结合,在食品基复合材料中实现多尺度孔隙。通过控制打印路径,可设计出大孔隙,而糊化程度则可控制微孔和纳米孔的形成。工艺与微结构的关系表明,在较高的糊化温度下进行较长时间的预热处理,可显著减少微孔面积两倍多,纳米孔表面积减少三倍多。这些结果为制造具有可定制微结构的食品基复合材料提供了一条前景广阔的途径。
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来源期刊
MRS Communications
MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
10.50%
发文量
166
审稿时长
>12 weeks
期刊介绍: MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.
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