The polymer/ferroferric oxide (Fe3O4) foam and aerogel composites generally exhibit superior radar absorptivity performance. However, these have poor mechanical thermal properties. This study manufactured a polylactic acid (PLA)/Fe3O4 bio-composite evaluated the absorptivity, thermal, properties of radar-absorbing material. were prepared using solvent casting method to mix PLA Fe3O4 at varying ...

We developed a robust method to construct large-scale multi-layered assemblies with orthogonally oriented stripes on a capillary tube using a confined evaporative self-assembly (CESA) method. A mixture of conductive polymer poly(3-hexylthiophene) (P3HT) and biocompatible polylactic acid (PLA) was chosen as the model polymer and the molecular chain orientation of P3HT in an individual stripe cou...

This study evaluated bio-based blended films produced from polylactic acid (PLA) and thermoplastic starch (TPS) under soil conditions for four weeks (W). The degradation of the film was in addition to thermal, structural, morphological changes on surface material. There were evident structural changes; TPS present degraded 0 4, exhibiting a loss mass between 350 365 °C TGA test. behavior attrib...

Microfibrillated cellulose (MFC) employed as reinforcement of polymeric matrices can increase elastic modulus, stiffness and strength a composite. In this work, the assessment mechanical, thermal properties tensile tests assisted by digital image correlation (DIC) was performed for curaua fiber MFC-reinforced polylactic acid (PLA) composites function MCF content. First, MFC incorporated into PL...

We have explored the applicability of printed scaffold by comparing osteogenic ability and biodegradation property of three resorbable biomaterials. A polylactic acid/hydroxyapatite (PLA/HA) composite with a pore size of 500 μm and 60% porosity was fabricated by three-dimensional printing. Three-dimensional printed PLA/HA, β-tricalcium phosphate (β-TCP) and partially demineralized bone matrix (...

BACKGROUND The applications for rapid prototyping have expanded dramatically over the last 20 y. In recent years, additive manufacturing has been intensely investigated for surgical implants, tissue scaffolds, and organs. There is, however, scant literature to date that has investigated the viability of three-dimensional (3D) printing of surgical instruments. MATERIALS AND METHODS Using a fus...

Objective: To investigatethe effects on histocompatibility and biodegradability of bioabsorbablepolylacticacid (PLA) gelin rats. Methods: Longitudinal incision of 30 mm was made along the spine, and subcutaneous tissues were separated bluntly to make four subcutaneous pouches, and PLA gel of different molecular weight (5, 10 and 20 kD) was implanted into the pouches. 4, 7, 11 and 14 weeks after...

Several studies have investigated self-reinforced polylactic acid (SR-PLA) and polyglycolic acid (SR-PGA) rods which could be used as intramedullary (IM) fixation devices to align and stabilise bone fractures. This study investigated totally bioresorbable composite rods manufactured via compression moulding at ~100 °C using phosphate glass fibres (of composition 50P(2)O(5)-40CaO-5Na(2)O-5Fe(2)O...

Sustainable design-centered manufacturing (SDM) will create competitive advantages for future new product development. However, selecting and balancing the indicators for economic, environmental, and social sustainability is difficult. In this research, we define the major indicators of social sustainability for development of SDM and propose a Balanced Scorecard method to evaluate the weightin...

The focus of this study is to examine the effect of cellulose nanocrystals (CNC) on the properties of polylactic acid (PLA) films. The films are fabricated via melt compounding and melt fiber spinning followed by compression molding. Film fracture morphology, thermal properties, crystallization behavior, thermo-mechanical behavior, and mechanical behavior were determined as a function of CNC co...