نتایج جستجو برای: thermoplastic injection

تعداد نتایج: 161754  

Journal: :Lab on a chip 2009
Chien-Fu Chen Jikun Liu Chien-Cheng Chang Don L DeVoe

A facile method enabling the integration of elastomeric valves into rigid thermoplastic microfluidic chips is described. The valves employ discrete plugs of elastomeric polydimethylsiloxane (PDMS) integrated into the thermoplastic substrate and actuated using a threaded stainless steel needle. The fabrication process takes advantage of poly(ethylene glycol) (PEG) as a sacrificial molding materi...

Journal: :Dental Materials Journal 2021

This research was conducted to investigate the bond strength between artificial teeth and a thermoplastic denture base resin for injection molding with different surface preparations use in flexible removable partial dentures. Composite acrylic were bonded three types of resins (polyamide, polyester, polycarbonate) conventional heat-polymerized polymethyl methacrylate (PMMA) (control). The ridg...

Journal: :IEEE Internet Computing 2022

Injection molding is widely used to produce plastic components with large lot size. However, quality failures occur during cycles. These can be minimized through real-time process monitoring. This article reports on a cloud-based digital twin (DT) that supported by A-based control of parameters and help companies detect product in real time. Process their interrelationship failure were studied ...

Journal: :Lab on a chip 2015
Emmanuel Roy Gale Stewart Maxence Mounier Lidija Malic Régis Peytavi Liviu Clime Marc Madou Maurice Bossinot Michel G Bergeron Teodor Veres

We present an all-thermoplastic integrated sample-to-answer centrifugal microfluidic Lab-on-Disc system (LoD) for nucleic acid analysis. The proposed CD system and engineered platform were employed for analysis of Bacillus atrophaeus subsp. globigii spores. The complete assay comprised cellular lysis, polymerase chain reaction (PCR) amplification, amplicon digestion, and microarray hybridizatio...

Journal: :Australian endodontic journal : the journal of the Australian Society of Endodontology Inc 2007
Mário Tanomaru-Filho Geraldine Faccio Silveira Juliane Maria Guerreiro Tanomaru Carlos Alexandre Souza Bier

The goal of this study was to evaluate the thermoplasticity of conventional and thermoplastic gutta-percha and Resilon, a polyester polymer-based material. Specimens with standardised dimensions were made from the following materials: conventional and thermoplastic gutta-percha (Dentsply), conventional and thermoplastic gutta-percha (Endopoints) and Resilon. After 24 h, the specimens were place...

2011
M. Mutsuda

Thermoplastic polyamide elastomer (PAE) [also PEBA: polyether block amide] is one of the most recently developed of the thermoplastic elastomers: a multiblock polymer with polyamide hard segments, it uses longchain polyether diol or polyester diol of low Tg for its soft segments. Polyamide 6 or polyamide 12 (PA12) is the main polyamide component used, while the soft segments are mostly provided...

Journal: : 2021

Computer simulation of injection moulding process is a powerful tool for optimisation moulded part geometry, mould design and processing parameters. One the most frequent faults parts their warpage, which result uneven cooling conditions in cavity as well after ejection from down to environmental temperature. With computer it possible predict potential areas warpage apply remedies compensate/mi...

Journal: :Scientific reports 2015
Jiang Ma Xiong Liang Xiaoyu Wu Zhiyuan Liu Feng Gong

The work proposed a novel thermoplastic forming approach-the ultrasonic beating forming (UBF) method for bulk metallic glasses (BMGs) in present work. The rapid forming approach can finish the thermoplastic forming of BMGs in less than one second, avoiding the time-dependent crystallization and oxidation to the most extent. Besides, the UBF is also proved to be competent in the fabrication of s...

2009
William Gacitúa Michael Wolcott

The main objective of the research presented here was to relate anatomical features of wood species that affect the interactions between polymeric phases and performance of wood plastic composites (WPC). These interactions were related to the probable interlocking volume and surface area for stress transfer in a WPC. Composites were produced from different wood species and analyzed using SEM (s...

2016
Eric Starke Anja Winkler Martin Dannemann Niels Modler Dimitrios G. Aggelis

The paper presents preliminary numerical and experimental studies of active textile-reinforced thermoplastic composites with embedded sensor-actuator arrays. The goal of the investigations was the assessment of directional sound wave generation capability using embedded sensor-actuator arrays and developed a wave excitation procedure for ultrasound measurement tasks. The feasibility of the prop...

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