Results 101 to 110 of about 162,516 (289)

Effect of Nozzle Geometry on the Rheological Properties of Natural Fiber-Reinforced Thermoplastic Composites in Fused Deposition Modeling: A Review

Liquids
Fused Deposition Modeling (FDM) has emerged as one of the most widely adopted additive manufacturing (AM) technologies, valued for its simplicity, cost-effectiveness, and versatility in fabricating complex geometries. The geometry of the extrusion nozzle
Mohammad Arsyad Azemi, Mohd Nazri Ahmad, Mohd Rizal Alkahari, Mohamed Saiful Firdaus Hussin, Izdihar Tharazi   +4 more
doaj   +1 more source

Ionically Counter‐Programmable Phase‐Separation of Superstable Star‐Biopolyamide Coacervates for Electrothermally‐Responsive Pseudosolid Smart Windows

Advanced Science, EarlyView.
We develop bio‐based, star‐branched polyamides from itaconic acid and cadaverine with tunable lower critical solution temperature (LCST) transitions for dynamic solar modulation. Specific metal ion coordination with pyrrolidone moieties drives precise phase transitions via calcium‐induced salting‐in and sodium‐induced salting‐out mechanisms. Formulated
Jie Liu, Xiaotian Zhu, Jinjian Hou, Jinze Du, Mohammad Asif Ali, Maiko K. Okajima, Tatsuo Kaneko   +6 more
wiley   +1 more source

Study of Flow Properties of Thermoplastics in Extrusion

Kobunshi Kagaku, 1960
シングルースクリュー押出機を使用し, 各種成形用樹脂について, 押出温度およびスクリュー回転数を数段階にとって, 押出実験を行ない, 押出圧力および押出量の測定を行なった。そのデータから, 基礎式として採用したOstwaldの式D=ktnにおける定数為, k, nの値を計算した。それによれば, ポリエチレンのごとき流動性の良い樹脂では, kは数百の値を示し, nは2-3程度である。これに反し, 硬質塩化ビニルのごとく流れにくい樹脂では, kは著しく小さくなり, nは逆に多少大きくなる。なお, 温度が上昇すると, kはほとんど直線的に増加し, nは同様直線的に減少する。また, 硬質塩化ビニルについては, その配合法のいかんによって, k, nの値に, 相当大きな差異の生ずることを確かめ ...
openaire   +2 more sources

Advancing Biotherapeutic Treatment of Ulcerative Colitis Using Lipid Mesophases: Formulation Design and Preclinical Validation

Advanced Science, EarlyView.
Lipid mesophases provide a versatile platform for colon‐targeted delivery of biotherapeutics, protecting them from degradation while enhancing mucoadhesion and enabling localized, controlled release to the inflamed mucosa after oral or rectal administration. In a DSS‐induced colitis model, this strategy reduced disease activity, inflammatory biomarkers,
Rafaela Gazzi, Tiziana Cremona, Reto Czekalla, Emily Campbell, Marlene Schwarzfischer, Doris Pöhlmann, Vanessa Dobernig, Gerhard Rogler, Michael Scharl, Alessandra Bergadano, Raffaele Mezzenga, Martin Kuentz, Paola Luciani, Simone Aleandri   +13 more
wiley   +1 more source

Biobased Boston Ivy‐Inspired Cryogel Integrating Radiative Cooling and Phase Change Energy Storage for Adaptive Thermal Regulation

Advanced Science, EarlyView.
A bionic cryogel containing phase‐change materials that provides daytime radiative cooling and nighttime heat release is developed to promote environmentally sustainable and comfortable housing and living environments with reduced building energy demand.
Sining Huang, Zhiguo Li, Yang Liu, Chengyu Wang, Yi Lu, Erlantz Lizundia, Siqi Huan   +6 more
wiley   +1 more source

Research on the extrusion characteristics for the geometry of materials in material extrusion process using heating syringe

Scientific Reports
The material extrusion process using a heated syringe in additive manufacturing offers the advantage of fabricating various materials with a single device while being cost-effective due to the ease of material storage and management.
Kwang Yeol Yu, Do Young Goo, In Hwan Lee
doaj   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Lab‐Scale Fabrication Process Selection for Soft Robotics: Benchmarking, Tradeoffs, and Guidelines for Formative Manufacturing of Soft Silicone Components

Advanced Intelligent Systems, EarlyView.
Fabrication shapes soft robot performance, but benchmarking data and selection guidelines remain scarce. We fabricate silicone actuators using two molding techniques and three mold types, characterizing them with cycle testing, microscopy, profilometry, and 3D imaging. Applying our lab‐scale, soft robotics‐specific fabrication evaluation criteria shows
Charlotte M. Folinus, Daniel Massimino, Cat Arase, Kaitlyn P. Becker   +3 more
wiley   +1 more source

Polycarbonate/antibacterial blend nanocomposites in material extrusion 3D printing: Thermomechanical response, rheology, and biocidal metrics

Biomedical Engineering Advances
The motivation of the research was to introduce nanocomposites with the polycarbonate (PC) thermoplastic as the matrix material, with biocidal capabilities and improved mechanical performance for the material extrusion (MEX) additive manufacturing (AM ...
Markos Petousis, Nektarios K. Nasikas, Vassilis Papadakis, Maria Spyridaki, Evangelos Sfakiotakis, Amalia Moutsopoulou, Apostolos Argyros, Evgenia Dimitriou, Nikolaos Michailidis, Nectarios Vidakis   +9 more
doaj   +1 more source

Processing and quality of continuous fiber reinforced thermoplastic by direct extrusion [PDF]

, 2017
Thermoplastic sheets with continuous fabric or roving reinforcement offer the possibility of short cycle times. Conventional production solutions require double belt presses processing semi-manufactured plastic sheets or powders.
Caba, Stefan, Koch, Michael, Feustel, Stefan   +2 more
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