Publications associées à Moulage par injection

Process-Induced Structures of Injection-Molded High-Density Polyethylene-Combining X-ray Scattering and Finite Element Modeling

The success of plastics heavily relies on fast melt processing methods used for large-scale industrial manufacturing, including injection molding. The hierarchical structure of the solid polymer depends on material selection combined with processing condit ...

Amer Chemical Soc2024

Multi-well plate lid for single-step pooling of 96 samples for high-throughput barcode-based sequencing

Bart Deplancke, Daniel Migliozzi, Riccardo Dainese, Daniel Alpern, Gilles Weder, Mustafa Demir, Dariia Gudkova, Hüseyin Baris Atakan

High-throughput transcriptomics is of increasing fundamental biological and clinical interest. The generation of molecular data from large collections of samples, such as biobanks and drug libraries, is boosting the development of new biomarkers and treatm ...

Springer2024

Scanning Small-Angle X-ray Scattering of Injection-Molded Polymers: Anisotropic Structure and Mechanical Properties of Low-Density Polyethylene

Marianne Liebi, Manuel Guizar Sicairos

Injection molding is known to create a layered anisotropicmorphologyacross the sample thickness due to varying shear and cooling ratesduring the manufacturing process. In this study, scanning small-angleX-ray scattering was used to visualize and quantify t ...

AMER CHEMICAL SOC2023

Strategies for energy-efficient frontal polymerisation processing and microstructural evaluation of fibre reinforced composites

Jacobus Gerardus Rudolph Staal

Liquid composite moulding methods are widely applied for manufacturing of fibre reinforced polymer (FRP) composites and consist of two main stages: impregnation of fibrous reinforcements by a liquid monomer resin and curing of this resin. This thesis work ...

EPFL2023

A multi scale consolidation model for press moulding of hybrid textiles into complex geometries

Vincent Werlen

Side-by-side hybrid textiles are an intermediate step for the production of fibre-reinforced thermoplastic composites. Press moulding these materials combining reinforcing fibre textiles and thermoplastic matrix textiles or flexible layers is a promising m ...

EPFL2023

Addressing the challenges of homogeneity, quality control and waste handling in soil bio-cementation: A large-scale experiment

Lyesse Laloui, Dimitrios Terzis, Ray Harran

In an attempt to go beyond the conventional laboratory experiments widely reported in literature around the emerging technique of soil bio-cementation, this work addresses key challenges related to its large-scale application. Precisely, a state-of-the-art ...

JAPANESE GEOTECHNICAL SOC2023

Novel tooling for direct melt impregnation of textile with variotherm injection moulding: Methodology and proof of concept

Véronique Michaud, Vincent Werlen, Christian Rytka

Thermoplastic compression resin transfer moulding coupled with injection moulding is an appealing process for the production of thermoplastic composites. However, its implementation at an industrial scale remains challenging as variotherm injection mouldin ...

SAGE PUBLICATIONS LTD2022

Sustainable polyesters via direct functionalization of lignocellulosic sugars

François Maréchal, Harm-Anton Klok, Véronique Michaud, Jeremy Luterbacher, Yves Leterrier, Maxime Alexandre Clément Hedou, Adrien Julien Demongeot, Graham Reid Dick, Christèle Rayroud, Thibault Rambert

The development of sustainable plastics from abundant renewable feedstocks has been limited by the complexity and efficiency of their production, as well as their lack of competitive material properties. Here we demonstrate the direct transformation of the ...

2022

A life cycle analysis of novel lightweight composite processes: Reducing the environmental footprint of automotive structures

Véronique Michaud, Baris Çaglar, Colin Gomez, Vincent Werlen, Christian Rytka

In this study, three novel thermoplastic impregnation processes were analyzed towards automotive applications. The first process is thermoplastic compression resin transfer molding in which a glass fiber mat is impregnated in through thickness by a thermop ...

ELSEVIER SCI LTD2022

Report of RILEM TC 267-TRM: Improvement and robustness study of lime mortar strength test for assessing reactivity of SCMs

Karen Scrivener, Ruben Anton Snellings, Mohsen Ben Haha, Xuerun Li, Shashank Bishnoi, Pawel Tadeusz Durdzinski, Mathieu Antoni, Anuj Parashar, Yuvaraj Dhandapani

RILEM TC 267-TRM is studying tests for the reactivity supplementary cementitious materials (SCMs). In the first phase, the lime reactivity (LR) test, which is standardised in Indian standard (IS)-1727, gave promising correlations with 90-days cement mortar ...

SPRINGER2022

Laser-induced liquid micro-jets for drug delivery

Jan Krizek

Jet injection devices have been studied and developed for transdermal drug delivery to avoid the use of needles. Such contact-less devices provide several advantages such as better dose control, lateral and depth localisation, lower collateral damage than ...

EPFL2021

Functionalized Fiber Reinforced Composites via Thermally Drawn Multifunctional Fiber Sensors

Véronique Michaud, Fabien Sorin, William Nicolas Duncan Esposito, Stella Andréa Françoise Laperrousaz, Baris Çaglar, Dang Tùng Nguyen

Monitoring fiber reinforced polymer composites (FRPC) during their production and operation is becoming crucial to track the performance of the final parts and optimize the overall life cycle. The challenges associated with integrating multifunctional sens ...

Wiley2021

Hydraulic fracture growth in quasi-brittle materials

Dong Liu

Hydraulic fracturing is a technique often used in the oil and gas industry to enhance the production of wells in low-permeability reservoirs. It consists of fluid injection at a sufficiently large injection rate to create and propagate tensile fractures in ...

EPFL2021

Tandem electrospinning for heterogeneous nanofiber patterns

Silvestro Micera

Smart nanofibrillar constructs can be a promising technological solution for many emerging and established fields, facilitating the potential impact of nano-scale strategies to address relevant technological challenges. As a fabrication technique, electros ...

IOP PUBLISHING LTD2020

Composition and method for the preparation of sheets, films, fibers, and molded parts

Holger Frauenrath, Daniel Görl, Oguzhan Oguz

The invention describes a composition containing a) a functionalized polymer (10) that comprises at least one polyester segment (13) and at least one, in particular at least two, polymer aggregating segment (11, 12) capable of forming non-covalent bonds ba ...

2020

On benchmarking of simulations of particle transport in ITER

Olivier Sauter, Francesca Maria Poli, Federico Alberto Alfredo Felici, Javier García Hernández, Anna Teplukhina, Xiao Yuan

We report results of benchmarking of core particle transport simulations by a collection of codes widely used in transport modelling of tokamak plasmas. Our analysis includes formulation of transport equations, difference between electron and ion solvers, ...

IOP Publishing Ltd2019

New perspectives for design of lightweight structures by using textile reinforced concrete

Aurelio Muttoni, Miguel Fernández Ruiz, Patrick Lorenzo Valeri

Nowadays, reinforced concrete (RC) is one of the most widely spread construction materials: allowing to build robust and durable structures. Traditionally, due to cover requirements of the reinforcement and to casting and vibration needs, it has yet been a ...

2019

Slickwater hydraulic fracture propagation: near-tip and radial geometry solutions

Brice Tanguy Alphonse Lecampion, Haseeb Zia

We quantify the importance of turbulent flow on the propagation of hydraulic fractures (HF) accounting for the addition of friction reducing agents to the fracturing fluid (slickwater fluid). The addition in small quantities of a high molecular weight poly ...

Cambridge University Press2019

Intestinal Fish Cell Barrier Model to Assess Transfer of Organic Chemicals in Vitro: An Experimental and Computational Study

Kristin Schirmer, Hannah Inka Schug, Anze Zupanic, Jenny Maner

We studied the role of the fish intestine as a barrier for organic chemicals using the epithelial barrier model built on the rainbow trout (Oncorhynchus mykiss) intestinal cell line, RTgutGC and the newly developed exposure chamber, TransFEr, specifically ...

AMER CHEMICAL SOC2019

Morphology and interfacial strength of nonisothermally fusion bonded hard and soft thermoplastics

Pierre-Etienne Bourban, Rajasundar Chandran

Nonisothermally fusion bonded butt joints were prepared by overmolding thermoplastic elastomers (TPEs) onto isotactic polypropylene (iPP) inserts in order to investigate the effect of processing conditions on the bond strength and interfacial microstructur ...

2018