Physical Characterization and Pre-assessment of Recycled High-Density Polyethylene as 3D Printing Material

2016 ◽  
Vol 25 (2) ◽  
pp. 136-145 ◽  
Author(s):  
Siewhui Chong ◽  
Guan-Ting Pan ◽  
Mohammad Khalid ◽  
Thomas C.-K. Yang ◽  
Shuo-Ting Hung ◽  
...  
Keyword(s):  
3D Printing ◽  
High Density Polyethylene ◽  
High Density ◽  
Physical Characterization

On the 3D Printability of Multi-Walled Carbon Nanotube/High Density Polyethylene Composites

2019 ◽  
Author(s):  
Felicia Stan ◽  
Nicoleta-Violeta Stanciu ◽  
Catalin Fetecau
Keyword(s):  
Carbon Nanotube ◽  
Electrical Properties ◽  
3D Printing ◽  
Shear Viscosity ◽  
High Density Polyethylene ◽  
High Density ◽  
High Shear ◽  
Shear Rates ◽  
Mechanical And Electrical Properties ◽  
Multi Walled Carbon Nanotube

Abstract This study focuses on 3D printing of multi-walled carbon nanotube/high density polyethylene (MWCNT/HDPE) composites. First, rheological properties of 0.1, 1, and 5 wt.% MWCNT/HDPE composites were investigated to estimate the 3D printability window. Second, filaments with 1.75 mm diameter were fabricated and subsequently extruded by a commercial 3D printer. Finally, the filaments and 3D printed parts were tested to correlate the rheological, mechanical, and electrical properties with processing parameters. Experimental results show that flow behavior of MWCNT/HDPE composites is a critical factor affecting the 3D printability. The shear viscosity exhibits good shear thinning behavior at high shear rates and significantly increases with increasing nanotube loading from 0.1 to 5 wt.%, at low shear rates. Reliable MWCNT/HDPE filaments were obtained with smooth surface finish and good mechanical and electrical properties. The 0.1 and 1 wt.% MWCNT/HDPE filaments exhibit very good printing characteristics. However, under the flow conditions of a standard 0.4-mm nozzle, 3D printing of 5 wt.% MWCNT/HDPE filament can be rather difficult primarily due to high shear viscosity and nozzle clogging. Thus, further investigation is needed to fully optimize the 3D printing of MWCNT/HDPE composites.

scholarly journals Three-Dimensional Printing Using Recycled High-Density Polyethylene: Technological Challenges and Future Directions for Construction

Buildings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 165 ◽  
Author(s):  
Faham Tahmasebinia ◽  
Marjo Niemelä ◽  
Sanee Ebrahimzadeh Sepasgozar ◽  
Tin Lai ◽  
Winson Su ◽  
...  
Keyword(s):  
Numerical Model ◽  
3D Printing ◽  
Construction Industry ◽  
High Density Polyethylene ◽  
Waste Product ◽  
Three Dimensional ◽  
High Density ◽  
Future Directions ◽  
Waste Products ◽  
Recycled Waste

Three-dimensional (3D) printing technologies are transforming the design and manufacture of components and products across many disciplines, but their application in the construction industry is still limited. Material deposition processes can achieve infinite geometries. They have advanced from rapid prototyping and model-scale markets to applications in the fabrication of functional products, large objects, and the construction of full-scale buildings. Many international projects have been realised in recent years, and the construction industry is beginning to make use of such dynamic technologies. Advantages of integrating 3D printing with house construction are significant. They include the capacity for mass customisation of designs and parameters to meet functional and aesthetic purposes, the reduction in construction waste from highly precise placement of materials, and the use of recycled waste products in layer deposition materials. With the ultimate goal of improving construction efficiency and decreasing building costs, the researchers applied Strand 7 Finite Element Analysis software to a numerical model designed for 3D printing a cement mix that incorporates the recycled waste product high-density polyethylene (HDPE). The result: construction of an arched, truss-like roof was found to be structurally feasible in the absence of steel reinforcements, and lab-sized prototypes were manufactured according to the numerical model with 3D printing technology. 3D printing technologies can now be customised to building construction. This paper discusses the applications, advantages, limitations, and future directions of this innovative and viable solution to affordable housing construction.

scholarly journals Three-Dimensional Printing Using Recycled High-Density Polyethylene: Technological Challenges and Future Directions for Construction

2018 ◽  
Author(s):  
Faham Tahmasebinia ◽  
Marjo Niemelä ◽  
Sanee M. Ebrahimzadeh Sepasgozar ◽  
Tin Yiu Lai ◽  
Winson Su ◽  
...  
Keyword(s):  
Numerical Model ◽  
3D Printing ◽  
Construction Industry ◽  
High Density Polyethylene ◽  
Three Dimensional ◽  
High Density ◽  
Future Directions ◽  
Waste Products ◽  
House Construction ◽  
Recycled Waste

Three-dimensional (3D) printing technologies are transforming the design and manufacture of components and products across a variety of disciplines, however their application in the construction industry is still limited. Material deposition processes can achieve infinite geometries and have advanced from rapid prototyping and model-scale markets to their application in fabricating functional products, large objects and the construction of full-scale buildings. Many international projects have recently been realized and the construction industry is beginning to utilise these dynamic technologies. The potential advantages for integrating 3D printing into house construction are significant, these include the capacity for mass customization of designs and parameters for functional and aesthetic purposes, reduction in construction waste from highly precise material placement, and the use of recycled waste products in layer deposition materials. With the ultimate goal of improving construction efficiency and decreasing building costs, applying Strand7 Finite Element Analysis software, a numerical model was designed specifically for 3D printing in a cement mix incorporated with recycled waste product High Density Polyethylene (HDPE) and found that construction of an arched truss-like roof was structurally feasible without the need for steel reinforcements. The lab sizes prototypes were manufactured based on the destined numerical model by using a 3D printing technology. Currently available 3D printing technologies can be adopted for building construction and this paper discusses the applications, advantages, limitations and future directions of 3D printing as an innovative and viable solution for affordable house construction.

Extrusion‐based 3D printing with high‐density polyethylene Birch‐fiber composites

2021 ◽  
pp. 51937
Author(s):  
Agbelenko Koffi ◽  
Lotfi Toubal ◽  
Minde Jin ◽  
Demagna Koffi ◽  
Frank Döpper ◽  
...  
Keyword(s):  
3D Printing ◽  
High Density Polyethylene ◽  
Fiber Composites ◽  
High Density

scholarly journals Metode PID untuk pengkondisian suhu pada bedplate di pencetak 3D 2x2x2 meter

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 35
Author(s):  
Budhy Setiawan ◽  
Purusa Tama ◽  
Delila Cahya
Keyword(s):  
3D Printing ◽  
High Density Polyethylene ◽  
Thermal Characteristics ◽  
High Density ◽  
3D Printer ◽  
Main Function ◽  
Print Material ◽  
Long Time ◽  
3D Printers ◽  
Made In

ABSTRAK 3D Printer mulai digunakan di dalam dunia industri Indonesia dalam beberapa tahun terakhir, karena dengan meggunakan 3D printer pembuatan prototype yang biasanya memakan waktu cukup lama dapat dibuat dalam waktu yang lebih singkat. Pada pembuatan 3D Printer Bedplate bisa dibilang salah satu bagian terpenting dari 3D printer, karena tidak akan bisa mencetak dengan baik tanpa itu. Fungsi utama Bedplate sendiri yaitu sebagai tempat alas cetak selama proses mencetak berlangsung. Terdapat banyak variasi Bedplate dengan menggunakan permukaan yang berbeda, karakteristik termal yang berbeda dan ukuran yang berbeda. Bedplate yang dijual secara universal memiliki ukuran kurang dari 50 cm sehingga jika ingin mencetak obyek dengan ukuran lebih dari 50 cm diperlukan bedplate dengan ukuran lebih dari 50 cm. Pada penelitian ini untuk mencetak obyek menggunakan Bedplate dengan ukuran 1 x 2 meter yang terbuat dari bahan kaca dan untuk filament menggunakan bahan biji plastik high density polyethylene (HDPE). Filament HDPE cenderung memiliki daya rekat yang buruk pada permukaan. Pada bahan cetak 3D Printer menggunakan Bahan high density polyethylene (HDPE) diperlukan suhu Konstan 65°C secara merata pada Bedplate agar bahan cetak dapat menempel dengan baik pada Bedplate.Untuk menghasilkan hasil cetakan yang baik, suhu Bedplate harus dikontrol dengan tepat dengan menggunakan Metode Proportional Intergral Deferential (PID), suhu terbaik Bedplate untuk Untuk proses penempelan bahan high density polyethylene HDPE adalah sebesar 65°C ABSTRACT 3D Printer began to be used in the indonesian industrial world in recent years, because by using 3D printers that usually take a long time can be made in a shorter time. In the manufacture of 3D Printer Bedplate is arguably one of the most important parts of 3D printers, because it would not be able to print well without it. The main function of Bedplate itself is as a printing base during the printing process. There are many variations of Bedplate using different surfaces, different thermal characteristics and different sizes. Bedplate sold universally has a size of less than 50 cm so if you want to print objects with a size of more than 50 cm is required bedplate with a size of more than 50 cm. In this study to print objects using Bedplate with a size of 1 x 2 meters made of glass and for filament using high density polyethylene (HDPE) plastic seed material. HDPE filaments tend to have poor adhesence on the surface. In 3D printing materials Printers use high density polyethylene (HDPE) materials required Constant temperature of 65 °C evenly on the Bedplate so that the print material can stick well to the Bedplate.To produce a good print result, the temperature of Bedplate must be controlled precisely by using the Proportional Intergral Deferential Method (PID), the best temperature bedplate for the process of attaching materials High density polyethylene HDPE material is 65 °C.

3D printing of high density polyethylene by fused filament fabrication

2019 ◽  
Vol 28 ◽  
pp. 152-159 ◽  
Author(s):  
Carl G. Schirmeister ◽  
Timo Hees ◽  
Erik H. Licht ◽  
Rolf Mülhaupt
Keyword(s):  
3D Printing ◽  
High Density Polyethylene ◽  
High Density ◽  
Fused Filament Fabrication

Composition and Surface Topography Effects on Apatite-Forming Ability of Ceramic-Polymer Composites

2003 ◽  
Vol 774 ◽  
Author(s):  
Susan M. Rea ◽  
Serena M. Best ◽  
William Bonfield
Keyword(s):  
Surface Topography ◽  
High Density Polyethylene ◽  
High Density ◽  
Apatite Layer ◽  
Biologically Active ◽  
Human Blood Plasma ◽  
Apatite Formation ◽  
Polyethylene Matrix ◽  
Composite Surface ◽  
X Ray

AbstractHAPEXTM (40 vol% hydroxyapatite in a high-density polyethylene matrix) and AWPEX (40 vol% apatite-wollastonite glass ceramic in a high density polyethylene matrix) are composites designed to provide bioactivity and to match the mechanical properties of human cortical bone. HAPEXTM has had clinical success in middle ear and orbital implants, and there is great potential for further orthopaedic applications of these materials. However, more detailed in vitro investigations must be performed to better understand the biological interactions of the composites and so the bioactivity of each material was assessed in this study. Specifically, the effects of controlled surface topography and ceramic filler composition on apatite layer formation in acellular simulated body fluid (SBF) with ion concentration similar to those of human blood plasma were examined. Samples were prepared as 1 cm × 1 cm × 1 mm tiles with polished, roughened, or parallel-grooved surface finishes, and were incubated in 20 ml of SBF at 36.5 °C for 1, 3, 7, or 14 days. The formation of a biologically active apatite layer on the composite surface after immersion was demonstrated by thin-film x-ray diffraction (TF-XRD), environmental scanning electron microscopy (ESEM) imaging and energy dispersive x-ray (EDX) analysis. Variations in sample weight and solution pH over the period of incubation were also recorded. Significant differences were found between the two materials tested, with greater bioactivity in AWPEX than HAPEXTM overall. Results also indicate that within each material the surface topography is highly important, with rougher samples correlated to earlier apatite formation.

Sign in / Sign up

Export Citation Format

Share Document