Mechanical, thermal, melt-flow and morphological characterizations of bentonite-filled ABS copolymer

2020 ◽  
Vol 26 (7) ◽  
pp. 1305-1312 ◽  
Author(s):  
Laylay Mustafa Alhallak ◽  
Seha Tirkes ◽  
Umit Tayfun
Keyword(s):  
3D Printing ◽  
Injection Molding ◽  
Rheological Parameters ◽  
Flow Index ◽  
Gravimetric Analysis ◽  
Melt Flow ◽  
Melt Mixing ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology

Purpose This study aims to investigate the mechanical, thermal, melt-flow and morphological behavior of acrylonitrile-butadiene-styrene (ABS)-based composites after bentonite inclusions. Melt mixing is the most preferred production method in industrial scale and basically it has very near processing parameters compared to 3D printing applications. Rheological parameters of ABS and its composites are important for 3D applications. Melt flow behavior of ABS effects the fabrication of 3D printed product at desired levels. Shear thinning and non-Newtonian viscosity characteristics of ABS make viscosity control easier and more flexible for several processing techniques including injection molding, compression molding and 3D printing. Design/methodology/approach ABS copolymer was reinforced with bentonite mineral (BNT) at four different loading ratios of 5%, 10%, 15% and 20%. ABS/BNT composites were fabricated by lab-scale micro-compounder followed by injection molding process. Mechanical, thermo-mechanical, thermal, melt-flow and morphological properties of composites were investigated by tensile, hardness and impact tests, dynamic mechanical analysis (DMA), thermo-gravimetric analysis (TGA), melt flow index (MFI) test and scanning electron microscopy (SEM), respectively. Findings Mechanical tests revealed that tensile strength, elongation and hardness of ABS were enhanced as BNT content increased. Glass transition temperature and storage modulus of ABS exhibited increasing trend with the additions of BNT. However, impact strength values dropped down with BNT inclusion. According to MFI test measurements, BNT incorporation displayed no significant change for MFI value of ABS. Homogeneous dispersion of BNT particles into ABS phase was deduced from SEM micrographs of composites. Loading ratio of 15% BNT was remarked as the most suitable candidate among fabricated ABS-based composites according to findings. Research limitations/implications The advanced mechanical properties and easy processing characteristics are the reasons for usage of ABS as an engineering plastic. Owing to the increase in its usage for 3D printing technology, the ABS became popular in recent years. The utilization of ABS in this technology is in filament form with various colors and dimensions. This is because of its proper rheological features. Practical implications Melt-mixing technique was used as preparation of composites, as this processing method is widely applied in industry. This method is also providing similar processing methodology with 3D printing technology. Originality/value According to the literature survey, to the best of the authors’ knowledge, this study is the first research work regarding the melt-flow performance of ABS-based composites to evaluate their 3D printing applications and processability. ABS and BNT containing composites were characterized by tensile, impact and shore hardness tests, DMA, TGA), MFI test and SEM techniques.

Methodology of technological evolution for three-dimensional printing

2016 ◽  
Vol 116 (1) ◽  
pp. 122-146 ◽  
Author(s):  
Sangsung Park ◽  
Juhwan Kim ◽  
Hongchul Lee ◽  
Dongsik Jang ◽  
Sunghae Jun
Keyword(s):  
3D Printing ◽  
Quantitative Methods ◽  
Three Dimensional ◽  
Principal Component ◽  
Technological Evolution ◽  
Time Series Regression ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
The Future

Purpose – An increasing amount of attention is being paid to three-dimensional (3D) printing technology. The technology itself is based on diverse technologies such as laser beams and materials. Hence, 3D printing technology is a converging technology that produces 3D objects using a 3D printer. To become technologically competitive, many companies and nations are developing technologies for 3D printing. So to know its technological evolution is meaningful for developing 3D printing in the future. The paper aims to discuss these issues. Design/methodology/approach – To get technological competitiveness of 3D printing, the authors should know the most important and essential technology for 3D printing. An understanding of the technological evolution of 3D printing is needed to forecast its future technologies and build the R & D planning needed for 3D printing. In this paper, the authors propose a methodology to analyze the technological evolution of 3D printing. The authors analyze entire patent documents related to 3D printing to construct a technological evolution model. The authors use the statistical methods such as time series regression, association analysis based on graph theory, and principal component analysis for patent analysis of 3D printing technology. Findings – Using the proposed methodology, the authors show the technological analysis results of 3D printing and predict its future aspects. Though many and diverse technologies are developed and involved in 3D printing, the authors know only a few technologies take lead the technological evolution of 3D printing. In this paper, the authors find this evolution of technology management for 3D printing. Practical implications – If not all, most people would agree that 3D printing technology is one of the leading technologies to improve the quality of life. So, many companies have developed a number of technologies if they were related to 3D printing. But, most of them have not been considered practical. These were not effective research and development for 3D printing technology. In the study, the authors serve a methodology to select the specific technologies for practical used of 3D printing. Originality/value – Diverse predictions for 3D printing technology have been introduced in many academic and industrial fields. Most of them were made by subjective approaches depended on the knowledge and experience of the experts concerning 3D printing technology. So, they could be fluctuated according to the congregated expert groups, and be unstable for efficient R & D planning. To solve this problem, the authors study on more objective approach to predict the future state of 3D printing by analyzing the patent data of the developed results so far achieved. The contribution of this research is to take a new departure for understanding 3D printing technology using objective and quantitative methods.

The fourth industrial revolution: a game-changer for the tourism and maritime industries

2020 ◽  
Vol 12 (1) ◽  
pp. 13-23 ◽  
Author(s):  
A. Kobina Armoo ◽  
Lanna-Gaye Franklyn-Green ◽  
Atneil J. Braham
Keyword(s):  
3D Printing ◽  
Industrial Revolution ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
Fourth Industrial Revolution ◽  
Dry Dock ◽  
Maritime Industries ◽  
The Government ◽  
The Impact

Purpose This paper aims to examine the floating dry dock and 3D printing technologies in relation to the ways in which they have the potential to complement each other. This relates to how the tourism and maritime industries in Jamaica could become more robust and competitive. Design/methodology/approach This study used a qualitative approach through the application of personal interviews and data from secondary sources. Findings Although Jamaica is positioning itself to become one of the leading maritime and logistics centres in the world, the government has not fully taken advantage of the fourth industrial revolution and its enabling factors. The integration of the floating dry dock with 3D printing technology has the ability to advance Jamaica from its current position to become a more economically viable country. Research limitations/implications Time was a limitation for the researchers in conducting this study. As a result, a more robust field study is needed to fully understand the impact of the fourth industrial revolution technologies on the maritime and tourism industries. Practical implications An investment in a floating dry dock and 3D printing technology will spur job creation. The researchers expect improved economic activity in Jamaica resulting from many businesses being created and/or improved. Social implications The quality of life is expected to increase because of the greater economic yields the country will receive from such investments. Originality/value This paper explored the combination of the floating dry dock and 3D printing technologies and their impact on the tourism and maritime industries in relation to increasing service value and economic yields.

Designing and simulating a “mass selective customization-centralized manufacturing” business model for clothing enterprises using 3D printing

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yuran Jin ◽  
Robert Campbell ◽  
Jinhuan Tang ◽  
Huisheng Ji ◽  
Danrong Song ◽  
...  
Keyword(s):  
3D Printing ◽  
Simulation Model ◽  
Dynamic Simulation ◽  
Business Model ◽  
Business Strategy ◽  
Model Simulation ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
Static Display

Purpose Global economic growth provides new opportunities for the development of clothing enterprises, but at the same time, the rapid growth of clothing customization demand and the gradual increase of clothing costs also pose new challenges for the development of clothing enterprises. In this context, 3D printing technology is injecting new vitality and providing a new development direction for the vigorous development of clothing enterprises. However, with the application of 3D printing technology, more and more clothing enterprises are facing the problem of business model innovation. In view of the lack of relevant research, it is necessary to carry out exploratory research on this issue. Design/methodology/approach The business model canvas method was adopted to design business model for clothing enterprises using 3D printing. The simulation model of the designed business model was constructed by a system dynamics method, and the application of the designed business model was analysed by a scenario simulation. Findings Mass selective customization-centralized manufacturing (MSC-CM) business model was constructed for clothing enterprises using 3D printing, and a static display was carried out using the BMC method. A dynamic simulation model of the MSC-CM business model was constructed. The future scenario of clothing enterprises using 3D printing was developed, and a simulated enterprise was analysed. The results show that the MSC-CM business model has a good application value. The simulation model of the MSC-CM business model performs the function of a business strategy experiment platform and also has a good practical application value. Research limitations/implications The MSC-CM business model is only a typical business model for clothing enterprises using 3D printing. It is necessary to further develop other business models, and some elements of the MSC-CM business model need to be further improved. In addition, the MSC-CM business model simulation uses a general model, which is not suitable for all clothing enterprises using 3D printing. When the model is applied, the relevant enterprises can further adjust and optimize it, thereby improving the validity of the simulation model. Originality/value To the best of the authors’ knowledge, this is the first paper on the MSC-CM business model for garment enterprises using 3D printing. Secondly, it is the first time that the business model of clothing enterprises using 3D printing has been simulated. In particular, the proposed business model simulation provides the possibility for testing the business strategy of clothing enterprises using 3D printing. In addition, a positive attempt has been made in the collaborative research of using both a static display business model and a dynamic simulation business model.

Survey analysis for the adoption of 3D printing technology: consumers’ perspective

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Maria Mavri ◽  
Evgenia Fronimaki ◽  
Athanasia Kadrefi
Keyword(s):  
3D Printing ◽  
Environmental Changes ◽  
New Technology ◽  
Social Implications ◽  
Innovative Technology ◽  
Survey Analysis ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
The Impact

Purpose Although the adoption of 3D printing technology in many sectors such as medicine, aerospace, jewelry and the food industry is remarkable, the adoption of 3D printing technology by hobbyists remains unknown. The purpose of this paper is to map the attitude of individuals toward this new technology, define critical factors that have an impact on hobbyists’ behavior and, finally, explore the impact of 3D printing on social, economic and environmental changes, as 3D printing technology redesigns manufacturing, thereby impacting many sectors of day-to-day life. Design/methodology/approach A survey has been carried out on Greek hobbyists, and valuable conclusions have been drawn. Data were collected using a structured questionnaire survey performed on a sample of 344 Greek consumers in this sector. A questionnaire of 30 questions was distributed electronically. Findings This paper contributes to the determination of the percentage of individuals that know about 3D printing, the factors that have a significant contribution to adoption of the technology and, finally, identifies the profile of those that use 3D printing technology either in their work or for their hobby. Using a factor analysis, the authors classified users into five categories based on their attitudes towards 3D printing adoption: “innovators,” “informed,” “ecologists,” “engineers” and “re-users.” Research limitations/implications The authors believe that understanding the predictors of 3D printing technology adoption for personal use and its benefits will overcome a pertained research gap and establish an empirical nucleus for further studies in relevant contexts. This type of research is necessary to expand the survey to other European countries. Practical implications 3D printing is not new, but rather is an emerging technology. Individuals are willing to adopt this innovative technology. Based on the results of our survey, a desktop 3D printer will be necessary for every home and office in the near future. Social implications The impact of 3D printing technology on rural life and its social implications are open questions. In this paper, by identifying the groups of hobbyists, the authors determine their particular characteristics and their perspectives on this new technology. All of what is discussed above is valuable for mapping the characteristics of those who adopt this technology. Originality/value This study is attempting to determine the behavior of individuals towards 3D printing technology, their awareness and how familiar they are with this new technological innovation.

Part library-based information retrieval and inspection framework to support part maintenance using 3D printing technology

2019 ◽  
Vol 25 (3) ◽  
pp. 630-644 ◽  
Author(s):  
Hyungki Kim ◽  
Moohyun Cha ◽  
Byung Chul Kim ◽  
Taeyun Kim ◽  
Duhwan Mun
Keyword(s):  
Information Retrieval ◽  
3D Printing ◽  
Design Methodology ◽  
User Needs ◽  
Prototype System ◽  
3D Printer ◽  
Printing Technology ◽  
Content Type ◽  
Know How ◽  
3D Printing Technology

Purpose The purpose of this study is the use of 3D printing technology to perform maintenance on damaged parts on site. To maintain damaged parts, the user needs experience in the parts design and 3D printing technology. To help users who have little or no experience on 3D printing, a part library-based information retrieval and inspection framework was proposed to support the process of manufacturing replaceable parts using a 3D printer. Design/methodology/approach To establish the framework, 3D printing-based maintenance procedure was first defined, comprising retrieval, manufacturing and inspection steps, while identifying the technical components required to perform the procedure. Once the technical components are identified, part library-based information retrieval and inspection framework was defined based on the technical components and the relationships between the components. For validation of the concept of the framework, prototype system is developed according to the proposed framework. Findings The feasibility of the proposed framework is proved through maintenance experiments on gaskets and O-rings. Originality/value The main contribution of this study is the proposal of the framework, which aims to support the maintenance of damaged parts for the user who has little or no experience in part design or does not know how to operate a 3D printer.

How 3D printing technology changes the rules of the game

2016 ◽  
Vol 27 (7) ◽  
pp. 932-943 ◽  
Author(s):  
Ivo Kothman ◽  
Niels Faber
Keyword(s):  
Supply Chain ◽  
3D Printing ◽  
Supply Chains ◽  
Empirical Work ◽  
Manufacturing Companies ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
Performance Improvements ◽  
Disruptive Technologies

Purpose The purpose of this paper is to present several insights on how disruptive technologies potentially impact the eco-performance of entire supply chains, by providing performance improvements compared to existing technologies, enabling more efficient manufacturing methods and affecting the entire structure of the supply chain. Design/methodology/approach To illustrate the authors’ position, a case from the construction sector is presented, for which the feasibility and impact of 3D printing technology has been studied. The empirical study focuses on the effect of the use of 3D printing technology on the building supply chain, aimed primarily at manufacturing companies in construction, but including suppliers, architects and designers as well. Findings 3D printing of concrete potentially provides several improvements in manufacturing performance, such as a shortening of lead times, integration of functions and allowing for reduced material usage, therefore possibly turning production steps within the construction supply chain obsolete while also reducing logistical and production efforts. Research limitations/implications Whether disruptive technologies other than 3D printing have a similar potential is unknown. Though the case study shows the potential of disruptive technologies in impacting supply chains, the authors realize that more empirical work is needed to understand the underlying mechanisms. Originality/value The originality of this paper lies in relating disruptive technological advancements to manufacturing technologies and transitions of supply chains’ eco-performance.

Novel exploration of 3D printed wrist arthroplasty to solve the severe and complicated bone defect of wrist

2017 ◽  
Vol 23 (3) ◽  
pp. 465-473 ◽  
Author(s):  
Qing Han ◽  
Yanguo Qin ◽  
Yun Zou ◽  
Chenyu Wang ◽  
Haotian Bai ◽  
...  
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Surgical Techniques ◽  
Bone Defects ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
3D Printed ◽  
And Function ◽  
Wrist Arthroplasty

Purpose Although proximal row carpectomy, wrist arthrodesis and even total wrist arthroplasty were developed to treat wrist disease using bone and cartilage of the wrist, severe and complicated bone defects caused by ferocious trauma and bone tumors remain a stubborn problem for surgeons. Development and application of the three-dimensional (3D) printing technology may provide possible solutions. Design/methodology/approach Computed tomography (CT) data of three cases with severe bone defects caused by either trauma or bone tumor were collected and converted into three-dimensional models. Prostheses were designed individually according to the residual anatomical structure of the wrist based on the models. Both the models and prostheses were produced using 3D printing technology. A preoperative design was prepared according to the models and prostheses. Then arthroplasty was performed after preoperative simulation with printed models and prostheses. Findings The diameter of the stem and radial medullary cavity, the direction and location of the prosthesis, and other components were checked during the preoperative design and simulation process phases. The three cases with 3D printed wrist all regained reconstruction of normal anatomy and part of the function after surgery. The average increasing Cooney score rate of Cases 2 and 3 was 133.34 ± 23.57 per cent, and that of Case 1 reached 85 per cent. The average declining rate of the Gartland and Werley Score in Cases 2 and 3 was 65.21 ± 18.89 per cent, and that of Case 1 dropped to 5 per cent in the last follow-up. The scores indicated that patients experienced pain relief and function regain. In addition, the degree of patient satisfaction improved. Originality/value 3D printed wrist arthroplasty may provide an effective method for severe and complicated cases without sacrificing other bones. Personal customization can offer better anatomy and function than arthrodesis or other traditional surgical techniques.

scholarly journals Formulation and Evaluation of 3D Printed Pregabalin Tablets Targeted For Neuropathic Pain By Qbd Approach For Personalized Medicine

2021 ◽  
Vol 11 (6) ◽  
pp. 1-13
Author(s):  
Bhusnure omprakash Gadgeppa ◽  
Mule Shrikrishna Tukaram ◽  
Gholvesachin Baburo ◽  
Giram padamja Sidram ◽  
Gaurav Agarwal Prof.(Dr) ◽  
...  
Keyword(s):  
Neuropathic Pain ◽  
3D Printing ◽  
Drug Release ◽  
Thermo Gravimetric Analysis ◽  
Processing Condition ◽  
Gravimetric Analysis ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Fused Deposition ◽  
3D Printed

The 3D printing technology has been newly employed in the design and formulation of different dosage forms with the aim formulation and evaluation of 3D printed Pregabalin tablets for the treatment of neuropathic pain by QbD approach. Drug (Pregabalin) together with other excipients, were mixed and extruded into filaments by hot melt extrusion. Then with the help of fused deposition modeling these obtained filaments were printed into tablets. Due to the use of different polymers in the printed formulation different release profiles for the 3D printed tablets were obtained. Drug release characteristics change the infill or the size of the printed tablets, allowing the personalization of the tablets. Filaments and tablets were characterized by means of Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X- RAY powder diffraction (XRPD), and thermo gravimetric analysis (TGA). The results showed that after printing, the processing condition did not have a significant impact on the stability of the drug and the crystalline nature of the drug remained. FDM 3D printing makes it possible not only to formulate 3D printing Pregabalin tablets for the treatment of neuropathic pain but also to modify the potential of additive manufacturing in the development of personalized dose medicines. This study presents novel formulations containing Pregabalin for prevention of neuropathic pain and investigates 3D printing technology for personalized production of oral solid dosage from enabling adjustable dose as well as drug release properties.

The pattern of technological accumulation

2017 ◽  
Vol 28 (1) ◽  
pp. 39-55 ◽  
Author(s):  
Xu Bai ◽  
Yun Liu ◽  
Gangbo Wang ◽  
Changcun Wen
Keyword(s):  
Developing Countries ◽  
3D Printing ◽  
Technological Development ◽  
Three Dimensional ◽  
Printing Technology ◽  
Accumulation Pattern ◽  
Content Type ◽  
3D Printing Technology ◽  
Patent Statistic ◽  
National Technology

Purpose The national technology accumulation pattern in three-dimensional (3D) printing technology field has not yet been studied until now. This paper is to fill this gap. To be specific, the purpose of this paper is to answer the following two questions. What is the comparative advantage of 3D printing technology among countries? What is the relative impact of 3D printing technology in the worldwide? Design/methodology/approach Patent bibliometric analysis was used for analyzing and collecting data to find critical information of 3D printing. Some indicators (RTA, FSGI, RII, CV) have been applied in analyzing the national patterns of technology accumulation in developed and developing countries by using patent statistics. Findings First, the USA, Japan, and Germany are the leading countries in 3D printing technology, while the technology accumulation patterns of these countries are rather different. Second, Israel and Italy have good performance in the fast-growing technology sub-fields. Third, although the number of patents owned by developing countries, such as China and Russia, is not few, the citations received by these patents are low. Research limitations/implications A limitation of this study is that technological development can be reflected by many indicators and patent statistic is merely one reflection form. This study just analyzes the 3D printing technology development from the perspective of patent statistic, the authors would like to continue the comprehensive analysis with the other data indicators in a future study. Originality/value The national technology accumulation pattern in 3D printing technology field has not yet been studied until now. This paper is to fill this gap.

A 3D-printed adaptive cloaking–illusion-integrated metasurface

2020 ◽  
Vol 8 (45) ◽  
pp. 16018-16023
Author(s):  
Qingxuan Liang ◽  
Zhaohui Li ◽  
Zijie Jiang ◽  
Yubing Duan ◽  
Tianning Chen ◽  
...  
Keyword(s):  
3D Printing ◽  
Injection Molding ◽  
Liquid Metals ◽  
Printing Technology ◽  
3D Printing Technology ◽  
3D Printed ◽  
First Time

An adaptive cloaking–illusion-integrated metasurface is realized for the first time by combining stereolithography of 3D printing technology and injection molding of liquid metals.

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