Selected Mechanical Properties of PETG 3-D Prints

Szykiedans, K.; Credo, W.; Osiński, Dymitr

doi:10.1016/j.proeng.2017.02.245

Cited by 117 publications

(73 citation statements)

References 6 publications

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“…Por isso, segundo o mesmo, dependendo do material, cor, ou fornecedor do filamento, os parâmetros utilizados no processo podem ser diferentes, o que leva, na maior parte dos casos, os usuários a ajustar as configurações através do método de tentativa e erro. Muitas vezes os materiais não possuem folhas técnicas (data-sheets), ou em alguns casos fabricantes de impressoras 3D publicam dados sobre os materiais utilizados em suas máquinas, mas são informações incompletas [32,33].…”

Section: Introductionunclassified

Estudo comparativo entre PETG e PLA para Impressão 3D através de caracterização térmica, química e mecânica

et al. 2018

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RESUMO A Impressão 3D baseada em extrusão se popularizou muito nos últimos anos devido ao surgimento de projetos de código aberto e máquinas de baixo custo, que tornaram a tecnologia acessível a todos os níveis de usuários. Paralelamente, novos materiais, em geral filamentos termoplásticos, são inseridos no mercado para aplicação neste tipo de técnica de fabricação, tornando cada vez mais necessário o desenvolvimento de estudos de caraterização experimentais dos materiais para fornecer dados técnicos aos utilizadores. Neste trabalho estudou-se o poli(tereftalato de etileno glicol) (PETG), polímero de recente adoção neste contexto, comparando-o ao poli(ácido lático) (PLA), o mais popular no âmbito da tecnologia. Ambos os materiais foram analisados mecanicamente à tração, através de amostras fabricadas por Impressão 3D variando os ângulos de deposição do material extrudado. Para a mesma análise, visando comparação, foram construídas peças por moldagem por injeção. Os materiais em seu estado inicial filamentar foram avaliados termicamente por TGA e DSC, e quimicamente por FTIR. As duas últimas técnicas de caracterização também foram aplicadas aos polímeros após o processamento por injeção e impressão. Os resultados obtidos mostraram que as propriedades mecânicas à tração dos componentes impressos são fortemente influenciadas pela orientação dos filamentos depositados nas camadas e pela mesoestrutura das peças. O PLA dispõe de superioridade mecânica, maior tensão máxima e elevada rigidez em relação ao PETG, nas amostras injetadas e impressas. O PETG, por sua vez, demostrou ser um material mais resistente à degradação térmica, mais estável termicamente (por não apresentar alterações significativas em seu comportamento térmico após ser processado), e flexível, propriedade esta que o torna muito interessante para aplicações na Impressão 3D. Por fim, a estrutura química molecular dos polímeros foi semelhante à descrita em outros estudos da literatura e pouco alterada pelos processos de fabricação.

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Section: Introductionunclassified

Estudo comparativo entre PETG e PLA para Impressão 3D através de caracterização térmica, química e mecânica

et al. 2018

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“…During this experiment, the intake tube was extended below the waterline in the compression chamber which allowed the air to percolate through warm water before being compressed out of the container. The container was 3D printed from Polyethylene terephthalate (PETG), due to its thermal properties compared to PLA 13 . This method was used to make the intake air warm and humid before being compressed and expelled.…”

Section: Discussionmentioning

confidence: 99%

Open source 3D printed Ventilation Device

Faryami

Harris

2020

Preprint

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COVID-19 is an acute respiratory tract infection caused by a coronavirus known as SARS-CoV-2. The common signs of infection include respiratory symptoms such as shortness of breath, breathing difficulties, dry cough, fever, and in some patients, severe acute respiratory syndrome, kidney failure, and death. 312,009 deaths from COVID-19 has been reported as of today. While respiratory symptoms are commonly caused by the infection, the use of mechanical ventilation is required for some patients. The following is intended to review the development and testing of a 3D printed and open-source mechanical ventilation device that is capable of adjusting breathing rate, volume, and pressure simultaneously and was designed according to the latest clinical observations of the current pandemic. The intuitive design of this device along with the use of primarily 3D printed or readily available components allow the rapid manufacturing and transportation of this ventilation device to the impacted regions. Background:According to the World Health Organization, more than 4,628,903 cases of COVID-19 infections have been confirmed around the world 1 . However, many experts estimate the actual number of patients to be significantly higher than the reported cases. Although many aspects of the infection are currently unknown, health organizations, pharmaceutical companies, and researchers are rapidly studying the infection 2 . The preliminary clinical data collected in China by Dr. Wei-jie Guan and his colleagues indicate that 1.4% of the admitted patients died from the infection. However, 41.3 % of the patients received oxygen therapy and mechanical ventilation was administered to 6.1% of patients 3 .These data are consistent with the clinical observations from Iran and Italy. While the number of confirmed cases of the infection has been exponentially rising around the world, the shortage of medical supplies and equipment is one of the main challenges in providing effective treatment to the patients 4-6 .

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“…These two previous materials have received much attention over the last years due to the important mechanical properties and their suitability to the application that is present. That is the reason why, nowadays, almost all studies are deviated to characterize different biobased materials, thanks to its environment-friendly behavior, in order to optimize the FDM printing setting to show the influence of printing parameters on mechanical properties [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…In fact, to enlarge the feedstock material offer for FDM, several research groups investigated the printing feasibility of materials dedicated to injection molding. Among the slightly affected materials by FDM process, polyethylene terephthalate glycol (PETG) [13,15] and polypropylen (PP) [16][17][18][19] offer good strength (53 and 36 MPa, respectively); even after printing the ultimate tensile strength becomes around 40 and 35 MPa, respectively. Printability of more flexible materials like nylon on polyamide (PA) was achieved in [20,21] using a large extrusion temperature range of 235-260°C.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal mechanical characterization of copolyester for additive manufacturing using FDM

Abouzaid

Guessasma

Belhabib

et al. 2019

Int. J. Simul. Multidisci. Des. Optim.

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The main purpose of this study is to highlight the thermal and mechanical characterization of printed copolyester-based polymer. The variety of benefits of this material, such as its food contact compliance and important mechanical properties, have proved to be effective in huge field of applications, including medical sector and packaging uses. However, it has not received much attention for 3D printing processes. As the printing temperature is a key parameter of fused deposition modeling (FDM) process, the present study is started by analyzing its effect on the mechanical properties of printed copolyester under tensile loading. Indeed, the determination of temperature optimal values to print this material with FDM process is done based on tensile properties, including tensile strength, Young's modulus, ultimate tensile and yield strength, ductility and fracture toughness. The fracture properties of printed copolyester are also discussed using "scanning electron microscopy" (SEM). The results indicate a strong effect of the extrusion temperature on tensile properties. In addition, the analysis of copolyester sample microstructure reveals several damage mechanisms within the printed parts that reflect different types of wires fracture form subjected to the same tensile loading.

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Selected Mechanical Properties of PETG 3-D Prints

Cited by 117 publications

References 6 publications

Estudo comparativo entre PETG e PLA para Impressão 3D através de caracterização térmica, química e mecânica

Estudo comparativo entre PETG e PLA para Impressão 3D através de caracterização térmica, química e mecânica

Open source 3D printed Ventilation Device

Thermal mechanical characterization of copolyester for additive manufacturing using FDM

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