High-performance medical-grade resin radically reinforced with cellulose nanofibers for 3D printing

被引：39

作者：

Vidakis, Nectarios ^{[1
]}

Petousis, Markos ^{[1
]}

Michailidis, Nikolaos ^{[2
,3
]}

Kechagias, John D. ^{[4
]}

Mountakis, Nikolaos ^{[1
]}

Argyros, Apostolos ^{[2
,3
]}

Boura, Orsa ^{[5
]}

Grammatikos, Sotirios ^{[5
]}

机构：

[1] Hellen Mediterranean Univ, Mech Engn Dept, Iraklion 71004, Crete, Greece

[2] Aristotle Univ Thessaloniki, Sch Engn, Mech Engn Dept, Phys Met Lab, Thessaloniki 54124, Greece

[3] Balkan Ctr, Ctr Interdisciplinary Res & Innovat, Ctr Res & Dev Adv Mat CERDAM, Bldg B,10th Km Thessaloniki Thermi Rd, Thessaloniki 57001, Greece

[4] Univ Thessaly, Sch Technol, Kardhitsa 43100, Greece

[5] Norwegian Univ Sci & Technol, Dept Mfg & Civil Engn, Lab Adv & Sustainable Engn Mat ASEMlab, Grp Sustainable Composites, N-2815 Gjovik, Norway

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2022年 / 134卷

关键词：

Cellulose nanofibers (CNFs); Biomedical resin; Mechanical testing; 3D printing; Fractography; Vat photopolymerization; MECHANICAL-PROPERTIES; BACTERIAL CELLULOSE; THERMAL-PROPERTIES; COMPOSITES; FIBERS; NANOCOMPOSITES; ANTIBACTERIAL; INDUSTRY;

D O I：

10.1016/j.jmbbm.2022.105408

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The effect of Cellulose NanoFiber (CNF) addition to a medical-grade resin in Stereolithography (SLA) Additive Manufacturing (AM) technology is reported, aiming to elaborate an easily processable, highly stiff bio-compound. CNFs were shear stir blended at various weight ratios with liquid resin. The fabricated nano -composite materials were introduced in an SLA 3D printer for specimens manufacturing. The mechanical per-formance was studied according to international standards. Charpy Toughness and Vickers microhardness were calculated for all tested materials. A microscopic and surface analysis was conducted on fractured tensile specimens by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM), respectively. The thermal and thermomechanical properties were investigated by Thermogravimetric Analysis (TGA), Differential Calorimetry (DSC), and Dynamic Mechanical Analysis (DMA). Significant reinforcement of the medical-grade nanocomposites is reported, with the highest values calculated to be at 1.0 wt% concentration (more than 100% at the tensile strength), while brittleness and rigidity were increased.

引用

页数：13

共 55 条

[1] Influence of manufacturing parameters on the mechanical properties of projection stereolithography-manufactured specimens [J].