Results 121 to 130 of about 8,691 (231)

Toward Fully Biobased Polyesters With Spiroacetal Units: Synthesis and Enzymatic Depolymerization

Macromolecular Materials and Engineering, Volume 311, Issue 5, May 2026.
A biobased spiroacetal‐containing dicarboxylate monomer derived from vanillin is developed as a sustainable alternative to dimethyl terephthalate. Copolyesters with tunable compositions are prepared, showing enhanced glass transition temperature, mechanical properties, and oxygen barrier performance.
Smita V. Mankar, Javier A. Linares‐Pastén, Tam T. Nguyen, Jan Wahlberg, Niklas Warlin, Nitin G. Valsange, Nicola Rehnberg, Stefan Lundmark, Patric Jannasch, Baozhong Zhang   +9 more
wiley   +1 more source

3D printed cartridges for the removal of pharmaceuticals from water

Talanta Open
The entry of pharmaceuticals into water is a key worldwide concern, with drugs being identified in all near-aqueous ecologies at often worrying concentrations. Pharmaceutical waste in environmental water has been shown to affect environmental equilibrium
Ankur Jyoti Thakuria, Purushottam Suryavanshi, Subham Banerjee   +2 more
doaj   +1 more source

Construcción de un banco de pruebas para ensayos de fotoelasticidad [PDF]

, 2016
La fotoelasticidad es una técnica experimental, con la cual podemos analizar esfuerzos y observar la distribución de tensiones en una pieza o un elemento que tengamos sometido a algún tipo de carga, en donde los métodos analíticos serian engorrosos a la ...
Palacio Restrepo, David, Velásquez, Daniela   +1 more
core  

Comparative Analysis of Surface Roughness and Geometric Tolerances in Material Extrusion: CPE versus TPU

Macromolecular Materials and Engineering, Volume 311, Issue 5, May 2026.
This work presents the first systematic comparison of dimensional tolerances and surface roughness in CPE and TPU parts fabricated by Material Extrusion. A shared DOE framework reveals a strong linear link between layer height and Ra roughness, highlights wall‐count impacts on geometric accuracy, and uncovers TPU's higher sensitivity to infill ...
Walter Crupano, Eric Velázquez‐Corral, Isaac Cisa, Bàrbara Adrover‐Monserrat, Jordi Llumà, J. Antonio Travieso‐Rodriguez   +5 more
wiley   +1 more source

The influence of the raster angle on the dimensional accuracy of FDM-printed PLA, PETG, and ABS tensile specimens

European Mechanical Science
3D printing is a rapidly advancing method in digital manufacturing techniques and produces objects in layers. Fused Deposition Modelling (FDM) is a 3D printing technology where the material is melted in a hot nozzle and then placed on a build platform to
Oğuz Tunçel
doaj   +1 more source

Self‐Texturing Scratch‐Resistant and Bacteria‐Repellent Superhydrophobic Polypropylene Surfaces Through Extrusion‐Based Additive Manufacturing

Macromolecular Materials and Engineering, Volume 311, Issue 5, May 2026.
One‐step 3D printing combined with in‐situ self‐assembly of behenic acid creates hierarchical polypropylene surfaces with micro‐ and nanostructures. The resulting material exhibits superhydrophobicity with a contact angle of 163 (±2)°, self‐healing, and high scratch resistance, while reducing initial bacterial adhesion by 87%. ABSTRACT Superhydrophobic
Sebastian Schächtele, Carl G. Schirmeister, Felix Burkhardt, Benedikt C. Spies, Ali Al‐Ahmad, Fabian Cieplik, Magdalena Mokrzycki, Katja P. Schumann, Bastian E. Rapp, Erik H. Licht, Rolf Mülhaupt   +10 more
wiley   +1 more source

Recycling plastic water bottles into high quality filaments for sustainable 3D printing

Discover Mechanical Engineering
This study explores a sustainable method for converting plastic water bottles made from polyethylene terephthalate (PET) into 3D printing filament for Fused Filament Fabrication (FFF) technologies.
Reem Aly, Shriya Vijay, Vishnu Shyju, Muhammed Sharfuddin, Wael A. Samad   +4 more
doaj   +1 more source

Material extrusion 3D printing of leakproof capsules: Experimental study on phase change material macroencapsulation

Next Materials
This article provides insight into an extensive experimental study on applying a material extrusion 3D printing process, commonly referred to as fused deposition modelling (FDM), to the manufacturing of leakproof capsules for macroencapsulating phase ...
M. Moreira, T. Silva, J. Dias-de-Oliveira, C. Amaral, F. Neto   +4 more
doaj   +1 more source

Abdominal vacuum lift as an aid to diagnosing abdominal adhesions [PDF]

, 2006
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.Includes bibliographical references (leaves 18-22).The internal organs are designed to move freely and slide over one another during normal body movement.
Strauss, Julius (Julius Y.)
core  

Experimental and ANN Modeling of Mechanical Properties and Surface Quality in Multi‐Material FDM Printing: Effects of Retraction Parameters

Polymers for Advanced Technologies, Volume 37, Issue 5, May 2026.
ABSTRACT In fused deposition modeling (FDM), retraction related parameters are usually adjusted to reduce stringing and oozing; however, their combined effects on mechanical performance and surface quality, particularly in multi‐material printing, remain insufficiently quantified.
Yagmur Akin Yildirim, Burak Yildirim, Osman Ulkir, Melih Kuncan   +3 more
wiley   +1 more source