Results 31 to 40 of about 20,331 (261)

Mechanical flexural ex vivo study of osteotomized swine femurs stabilized with two types of polyamide 12 rods

Ciência Rural
: Long bone fractures are commonly in surgery routine and several bone imobilization techniques are currently available. Technological progress has enabled to use low cost materials in surgical procedures.
Juliana Scarpa da Silveira Almeida, Débora de Oliveira Garcia, Renato Camargo Bortholin, Carlos Amaral Razzino, Cristiane dos Santos Honsho, Fernanda Gosuen Gonçalves Dias, Ewaldo de Mattos-Junior, Luis Gustavo Gosuen Gonçalves Dias   +7 more
doaj   +1 more source

Improved Mechanical Properties of Compatibilized Polypropylene/Polyamide-12 Blends

International Journal of Polymer Science, 2015
Compatibilized blends of polypropylene (PP) and polyamide-12 (PA12) as a second component were obtained by direct injection molding having first added 20% maleic anhydride-modified copolymer (PP-g-MA) to the PP, which produced partially grafted PP (gPP).
Nora Aranburu, José Ignacio Eguiazábal
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Applicability of polyamide 12 intramedullary locked rods in the stabilization of induced humeral fracture in cockerels (white plymouth rock) - in vivo study

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The aim of this study was to evaluate the use of polyamide 12 intramedullary rods in osteotomized humerus in cockerels (White Plymouth Rock) and analyze, by radiography and histopathology, bone consolidation and the formation of bone callus.
E.P. Cherobini, L.L. Carvalho, D.O. Garcia, F.G.G. Dias, C.A.S. Malta, A.C. Facin, E. Mattos-Junior, G.M. Magalhães, L.G.G.G. Dias   +8 more
doaj   +1 more source

Influence of the Origin of Polyamide 12 Powder on the Laser Sintering Process and Laser Sintered Parts

Applied Sciences, 2017
Different features of polymer powders influence the process of laser sintering (LS) and the properties of LS-parts to a great extent. This study investigates important aspects of the “powder/process/part”-property relationships by comparing two polyamide
Manfred Schmid, Rob Kleijnen, Marc Vetterli, Konrad Wegener   +3 more
doaj   +1 more source

Effects of build positions on the thermal history, crystallization, and mechanical properties of polyamide 12 parts printed by Multi Jet Fusion

Virtual and Physical Prototyping, 2022
Multi Jet Fusion (MJF) has gradually been utilised for the commercial fabrication of final products. In particular, the mechanical properties of MJF-printed polyamide 12 (MJF PA12) parts have been widely investigated by manipulating the process ...
Kaijuan Chen, Zhi Hui Koh, Kim Quy Le, How Wei Benjamin Teo, Han Zheng, Jun Zeng, Kun Zhou, Hejun Du   +7 more
doaj   +1 more source

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

Carbon/Polyamide 12 Prepreg Production

Tekstil ve Mühendis, 2015
 Karbon elyafın sağladığı hafiflik ve dayanım, bunlarla üretilen film kompozitlerini (prepreg) de önemli kılmaktadır. Film kompozitler, elyaf hacim oranının kontrolü ve tabakalı kompozit üretiminde kolaylık sağlaması gibi avantajları yönünden tercih edilen yarı mamüllerdir.
ERDEN, Seçkin, YILDIZ, Hasan
openaire   +2 more sources

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Preparation of iron oxide–coated aramid fibres for improving the mechanical performance and flame retardancy of multi jet fusion–printed polyamide 12 composites

Virtual and Physical Prototyping, 2023
Multi jet fusion (MJF), a powder-based additive manufacturing technology, is suitable for fabricating fibre-reinforced polymer composites. However, the types of reinforcement fibres applied in MJF are limited due to the incompatibility between the fibres
Yanbei Hou, Ming Gao, Jiayao Chen, Wei Shian Tey, Mei Chen, Han Zheng, Boyuan Li, Lihua Zhao, Kun Zhou   +8 more
doaj   +1 more source