Academic literature on the topic 'Microinjection moulding'

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Journal articles on the topic "Microinjection moulding"

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Coulter, John. "Microinjection moulding of polymers." Plastics, Rubber and Composites 39, no. 7 (2010): 285. http://dx.doi.org/10.1179/174328910x12777566997298.

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Janphuang, Pattanaphong, Mongkhol Laebua, Chanwut Sriphung, et al. "Polymer based microneedle patch fabricated using microinjection moulding." MATEC Web of Conferences 192 (2018): 01039. http://dx.doi.org/10.1051/matecconf/201819201039.

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This paper presents the development of a polymer based microneedle patch for transdermal drug delivery application using plastic microinjection moulding. Design and analysis of the microneedle cavities and mould insert used in the injection moulding process were carried out using Computer-Aided Engineering (CAE) software. A mould insert with low surface roughness was fabricated using Micro Electrical Discharge Machining (μ-EDM). The injection moulding parameters including clamping force, temperature, injection pressure and velocity were characterized in order to obtain the optimum reproducibil
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Vasco, J. C., and A. S. Pouzada. "A study on microinjection moulding using moulding blocks by additive micromanufacturing." International Journal of Advanced Manufacturing Technology 69, no. 9-12 (2013): 2293–99. http://dx.doi.org/10.1007/s00170-013-5165-9.

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Trotta, Gianluca, Rebeca Martínez Vázquez, Annalisa Volpe, et al. "Disposable Optical Stretcher Fabricated by Microinjection Moulding." Micromachines 9, no. 8 (2018): 388. http://dx.doi.org/10.3390/mi9080388.

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Microinjection moulding combined with the use of removable inserts is one of the most promising manufacturing processes for microfluidic devices, such as lab-on-chip, that have the potential to revolutionize the healthcare and diagnosis systems. In this work, we have designed, fabricated and tested a compact and disposable plastic optical stretcher. To produce the mould inserts, two micro manufacturing technologies have been used. Micro electro discharge machining (µEDM) was used to reproduce the inverse of the capillary tube connection characterized by elevated aspect ratio. The high accuracy
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Islam, A., H. N. Hansen, P. T. Tang, M. B. Jørgensen, and S. F. Ørts. "Two-component microinjection moulding for MID fabrication." Plastics, Rubber and Composites 39, no. 7 (2010): 300–307. http://dx.doi.org/10.1179/174328910x12691245470356.

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Piotter, V., J. Prokop, H. J. Ritzhaupt-Kleissl, A. Ruh, and J. Hausselt. "Multi-component microinjection moulding-trends and developments." International Journal of Advanced Manufacturing Technology 47, no. 1-4 (2009): 63–71. http://dx.doi.org/10.1007/s00170-009-1985-z.

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Han, Sol-Yi, and Wook-Bae Kim. "Microinjection moulding of miniaturised polymeric ortho-planar springs." Microsystem Technologies 22, no. 8 (2015): 1991–99. http://dx.doi.org/10.1007/s00542-015-2547-y.

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Mnekbi, C., M. Vincent, and J. F. Agassant. "Polymer rheology at high shear rate for microinjection moulding." International Journal of Material Forming 3, S1 (2010): 539–42. http://dx.doi.org/10.1007/s12289-010-0826-9.

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Yoon, S. H., K. H. Lee, P. Palanisamy, et al. "Enhancement of surface replication by gas assisted microinjection moulding." Plastics, Rubber and Composites 39, no. 7 (2010): 293–99. http://dx.doi.org/10.1179/174328910x12691245470554.

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Vasco, J. C., J. M. Maia, and A. S. Pouzada. "Thermo-rheological behaviour of polymer melts in microinjection moulding." Journal of Micromechanics and Microengineering 19, no. 10 (2009): 105012. http://dx.doi.org/10.1088/0960-1317/19/10/105012.

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Dissertations / Theses on the topic "Microinjection moulding"

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Babenko, Maksims. "A Study of Heat Transfer at the Cavity-Polymer Interface in Microinjection Moulding. The effects of processing conditions, cavity surface roughness and polymer physical properties on the heat transfer coefficient." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14745.

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This thesis investigates the cooling behaviour of polymers during the microinjection moulding process. The work included bespoke experimental mould design and manufacturing, material characterisation, infra-red temperature measurements, cooling analysis and cooling prediction using commercial simulation software. To measure surface temperature of the polymers, compounding of polypropylene and polystyrene with carbon black masterbatch was performed to make materials opaque for the IR camera. The effects of addition of carbon black masterbatch were analysed using differential scanning calorimetr
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Ferreira, Tânia. "Microinjection moulding of polymeric composites with functionalized carbon nanotubes." Doctoral thesis, 2014. http://hdl.handle.net/1822/35669.

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Tese de doutoramento em Ciência e Engenharia de Polímeros e Compósitos<br>Microinjection moulding of polymeric composites with functionalized carbon nanotubes The unique electronic, mechanical, and structural properties of carbon nanotubes (CNT) make them suitable for applications in the fields of electronics, sensors, medical devices, aerospace and automotive industries. The preparation of CNT/polymer nanocomposites presents particular interest among the various possible applications. However, the long entangled nanotubes form agglomerates that poses serious obstacles to further develop
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Zhao, Z. G., Q. Yang, Philip D. Coates, et al. "Structure and Property of Microinjection Molded Poly(lactic acid) with High Degree of Long Chain Branching." 2018. http://hdl.handle.net/10454/16981.

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Yes<br>Long chain branches (LCB) are successfully grafted to linear poly(lactic acid) (PLA) using functional group reactions with pentaerythritol triacrylate (PETA) and tetraethylthiuram disulfide (TETDS). Results show a high branching degree of PLA (∼49.5%) can be effectively obtained with adding only 1 wt % PETA, contributing remarkably to enhancing strain hardening. The density of the nuclei formed during nonisothermal crystallization for LCB-PLA samples is markedly increased contrasted with PLA, resulting in significantly enhancing crystallinity from 13.3% to 41%, the onset crystallization
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Ferreira, Telma Joana Jesus. "Microinjection moulding of austenitic stainless steel reinforced with carbon nanotubes." Doctoral thesis, 2018. http://hdl.handle.net/10316/79576.

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Tese de doutoramento em Engenharia Mecânica, na especialidade de Nanomateriais e Microfabricação, apresentada ao Departamento de Engenharia Mecânica da Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>In the last decades, the metal powder injection moulding (MIM), in its different versions – micro MIM technology, is a manufacturing process consolidated as an effective and competitive alternative to produce small size and complex geometry of metallic parts in large scale, with high quality and reproducibility. The remarkable expansion in different industrial sectors requires a r
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Sorgato, M., Maksims Babenko, G. Lucchetta, and Benjamin R. Whiteside. "Investigation of the influence of vacuum venting on mould surface temperature in micro injection moulding." 2016. http://hdl.handle.net/10454/10048.

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Yes<br>The application of vacuum venting for the removal of air from mould cavity has been introduced in injection moulding with the intent to enhance micro/nano features replication and definition. The technique is adopted to remove air pockets trapped in the micro-features, which are out of reach for conventional venting technologies and can create considerable resistance to the melt filling flow. Nonetheless, several studies have revealed a negative effect on replication that could possibly arise from the application of vacuum venting. Although the incomplete filling of micro-scale features
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Tuinea-Bobe, Cristina-Luminita, H. Xia, Yulia Ryabenkova, John Sweeney, Philip D. Coates, and G. Fei. "Microinjection moulded polyetheretherketone biomaterials as spinal implants: physico-chemical and mechanical characterisation." 2018. http://hdl.handle.net/10454/16702.

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Yes<br>Polyetheretherketone (or PEEK) is a thermoplastic polymer known for its high plasticity and toughness and has been widely employed as a material for a variety of load-bearing medical devices ranging from trauma implants to interspinal spacers and femoral stems. While being inherently chemically inert and therefore biocompatible and having very short lived post-radiation free radicals, PEEK presents different mechanical properties depending on its degree of crystallinity. It can be processed via extrusion, injection or compression moulding. However, these techniques do not allow high pre
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Babenko, Maksims, John Sweeney, P. Petkov, F. Lacan, S. Bigot, and Benjamin R. Whiteside. "Evaluation of heat transfer at the cavity-polymer interface in microinjection moulding based on experimental and simulation study." 2017. http://hdl.handle.net/10454/15121.

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Yes<br>In polymer melt processing, the heat transfer coefficient (HTC) determines the heat flux across the interface of the polymer melt and the mould wall. The HTC is a dominant parameter in cooling simulations especially for microinjection moulding, where the high surface to volume ratio of the part results in very rapid cooling. Moreover, the cooling rate can have a significant influence on internal structure, morphology and resulting physical properties. HTC values are therefore important and yet are not well quantified. To measure HTC in micromoulding, we have developed an experimental se
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Silva, Cátia Samanta Ribeiro. "Polymeric microsensors using microtechnologies." Doctoral thesis, 2016. http://hdl.handle.net/1822/42537.

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Tese de Doutoramento - Programa Doutoral em Ciência e Engenharia de Polímeros e Compósitos<br>The work present here aims to combine advanced and specialized polymeric materials and microtechnologies with silicon based microtechnologies to develop an innovative concept for a thermal convective accelerometer with improved performance while also overcoming existing limitations. Thermal convective accelerometers have a transduction mechanism based in heat transfer by convection over a working fluid. The thermal accelerometer is a relatively recent technology and although research focused in i
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Conference papers on the topic "Microinjection moulding"

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Valentinčič, J., I. Sabotin, G. Tristo, G. Bissacco, and S. Bigot. "Tooling and Microinjection Moulding of Bottom Grooved Micromixers." In 10th International Conference on Multi-Material Micro Manufacture. Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-7247-5-416.

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B.R, Whiteside, Tunea-Bobe C. L, and Coates P. D. "Characterising the Injection Kinetics of a Microinjection Moulding Machine." In 9th International Conference on Multi-Material Micro Manufacture. Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-3353-7_330.

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Babenko, M., B. R. Whiteside, K. Norris, G. Gonzalez Castro, J. Sweeney, and P. D. Coates. "The Usage of Thermal Imaging for Temperature Measurements During Microinjection Moulding." In 10th International Conference on Multi-Material Micro Manufacture. Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-7247-5-375.

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Malhab, Nada Bou, and Gilles Régnier. "Influence Of The Microinjection Moulding Process On The Crystalline Orientation And Morphology Of Semicrystalline Polymers." In THE 14TH INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2011. AIP, 2011. http://dx.doi.org/10.1063/1.3589617.

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