scholarly journals Closing the Loop - Recycling Plastic Waste

2021 ◽  
Author(s):  
◽  
Caitlin Bruce

<p>New Zealand is ranked among the top nations in waste production, including a million tonnes of plastic waste. Currently, there are methods for recycling plastic within New Zealand but these methods can be expensive and time-consuming, resulting in most of the plastic being thrown into the landfill. Because plastic does not fully degrade, it ends up in the ocean and other waterways, poisoning the water with toxins. The purpose of this research is to provide a solution to reducing plastic waste by creating an alternative method of recycling that utilises new technologies such as additive manufacturing, to create a building material that fits into the concept of the circular economy. The findings of this research explored the recycling of plastic by collecting plastic waste such as PLA (Polylactic Acid) from old 3D printed models. The plastic was recycled into filament for additive manufacturing (AM) and used to print building tile, establishing an initial proof of concept for the use of recycled plastic as a potential building material.</p>

2021 ◽  
Author(s):  
◽  
Caitlin Bruce

<p>New Zealand is ranked among the top nations in waste production, including a million tonnes of plastic waste. Currently, there are methods for recycling plastic within New Zealand but these methods can be expensive and time-consuming, resulting in most of the plastic being thrown into the landfill. Because plastic does not fully degrade, it ends up in the ocean and other waterways, poisoning the water with toxins. The purpose of this research is to provide a solution to reducing plastic waste by creating an alternative method of recycling that utilises new technologies such as additive manufacturing, to create a building material that fits into the concept of the circular economy. The findings of this research explored the recycling of plastic by collecting plastic waste such as PLA (Polylactic Acid) from old 3D printed models. The plastic was recycled into filament for additive manufacturing (AM) and used to print building tile, establishing an initial proof of concept for the use of recycled plastic as a potential building material.</p>


2020 ◽  
Vol 12 (19) ◽  
pp. 8032
Author(s):  
Marita Sauerwein ◽  
Jure Zlopasa ◽  
Zjenja Doubrovski ◽  
Conny Bakker ◽  
Ruud Balkenende

The circular economy requires high-value material recovery to enable multiple product lifecycles. This implies the need for additive manufacturing to focus on the development and use of low-impact materials that, after product use, can be reconstituted to their original properties in terms of printability and functionality. We therefore investigated reprintable materials, made from bio-based resources. In order to equally consider material properties and recovery during development, we took a design approach to material development. In this way, the full material and product life cycle was studied, including multiple recovery steps. We applied this method to the development of a reprintable bio-based composite material for extrusion paste printing. This material is derived from natural and abundant resources, i.e., ground mussel shells and alginate. The alginate in the printing paste is ionically cross-linked after printing to create a water-resistant material. This reaction can be reversed to retain a printable paste. We studied paste composition, printability and material properties and 3D printed a design prototype. Alginate as a binder shows good printing and reprinting behaviour, as well as promising material properties. It thus demonstrates the concept of reprintable materials.


Author(s):  
Tian Chen ◽  
Kristina Shea

The design and fabrication of hierarchical multi-stable structures using multi-material Additive Manufacturing (AM) is presented. First a reversible bistable unit actuator is designed to serve as the basis of the design hierarchy. With this unit actuator, the authors present monolithically printed proof-of-concept structures that can transform to multiple activated states, all of which are stable without the need for continuous energy input. The equilibrium positions of these hierarchical designs are found through iterative form finding when necessary. The novel structures illustrated in this paper are only made possible through design for AM that exploits the capabilities of a multi-material, inkjet 3D printer. The design procedure is illustrated through two concepts. The first consists of a series of tetrahedra fabricated as tiled deployable triangles with the out-of-plane members consisting of the actuators in the retracted configuration. The second concept consists of multiple shape changing square unit modules tiled in a grid to achieve complex 3D activated states including a hemisphere, a hyperbolic paraboloid, a star and a cube. Their design and prototyping form the foundation for new types of active and deployable 3D printed structures.


2021 ◽  
Author(s):  
◽  
Maddison Jessop-Benseman

<p>Plastic has become an integral material in our society due to the broad range of applications it can be used for, however, it is having a detrimental effect on our environment. In addition to more efficient waste management systems, a cultural shift through education is fundamental for more effective management of plastic waste. Although the New Zealand National Curriculum currently teaches students about sustainability, the method of teaching remains conventional and does not explore the empirical, tactile learning opportunities that 3D printing provides. This research portfolio proposes the importance of an education programme which focuses on plastic waste, upcycling and 3D printing in New Zealand schools. It explores how tangible learning can engage students more effectively with topics such as sustainability. Through collaborating with students and teachers, participatory research methods have been employed in order to form a foundation for an education programme focused on 3D printed upcycling within New Zealand. The final output of this research consists of an education programme proposal, as well as a series of projects which could be integrated into the programme.</p>


2021 ◽  
Author(s):  
◽  
Maddison Jessop-Benseman

<p>Plastic has become an integral material in our society due to the broad range of applications it can be used for, however, it is having a detrimental effect on our environment. In addition to more efficient waste management systems, a cultural shift through education is fundamental for more effective management of plastic waste. Although the New Zealand National Curriculum currently teaches students about sustainability, the method of teaching remains conventional and does not explore the empirical, tactile learning opportunities that 3D printing provides. This research portfolio proposes the importance of an education programme which focuses on plastic waste, upcycling and 3D printing in New Zealand schools. It explores how tangible learning can engage students more effectively with topics such as sustainability. Through collaborating with students and teachers, participatory research methods have been employed in order to form a foundation for an education programme focused on 3D printed upcycling within New Zealand. The final output of this research consists of an education programme proposal, as well as a series of projects which could be integrated into the programme.</p>


2021 ◽  
Author(s):  
◽  
Courtney Naismith

<p>Within the New Zealand Aviation Tourism Industry (NZATI), an extensive amount of single-use plastic is consumed due to its light-weight properties and stringent hygiene requirements. After use, most end up in landfills causing immense environmental and health issues. Plastic waste can no longer be sent overseas, and New Zealand (NZ) still lacks sustainable waste management infrastructure. Moreover, there are limited recycling solutions for certain types of plastics, such as soft plastic. This poses a challenge for the industry, which generates tonnes of plastic waste and carbon emissions annually despite the implementation of sustainable practices.  This research presents an opportunity for industry leaders such as Air New Zealand (AirNZ) to shift their current waste management model into a closed-loop system. The system focuses on how to upcycle inflight plastic through 3D printing (3DP) technologies into high-value products that reflect the identity of NZ. The research introduces how to implement 3D printed upcycling systems to benefit NZ culturally, economically and environmentally through several scenarios. A materials-led investigation with soft plastic bags, acrylonitrile-butadiene-styrene meal trays and polystyrene coffee stirrers revealed a variety of design possibilities. This resulted in a range of 3DP artefacts with novel visual, tactile and structural qualities. These include baskets printed from soft plastic and flax filament, a large chandelier printed from coffee stirrers, and topographic tiles printed from in-flight meal trays combined with organic waste from the New Zealand Māori Arts and Crafts Institute.   The design outputs of this research act as a tangible reference for implementation by industry partners. Additionally, it demonstrates how 3DP and sustainable design approaches can be used to reduce environmental impacts and enhance product value. With a system of 3D printed upcycling in place, it provides the opportunity to promote sustainable tourism, allowing visitors to be responsible for their waste and encourage eco-conscious behaviours.</p>


2021 ◽  
Author(s):  
◽  
Courtney Naismith

<p>Within the New Zealand Aviation Tourism Industry (NZATI), an extensive amount of single-use plastic is consumed due to its light-weight properties and stringent hygiene requirements. After use, most end up in landfills causing immense environmental and health issues. Plastic waste can no longer be sent overseas, and New Zealand (NZ) still lacks sustainable waste management infrastructure. Moreover, there are limited recycling solutions for certain types of plastics, such as soft plastic. This poses a challenge for the industry, which generates tonnes of plastic waste and carbon emissions annually despite the implementation of sustainable practices.  This research presents an opportunity for industry leaders such as Air New Zealand (AirNZ) to shift their current waste management model into a closed-loop system. The system focuses on how to upcycle inflight plastic through 3D printing (3DP) technologies into high-value products that reflect the identity of NZ. The research introduces how to implement 3D printed upcycling systems to benefit NZ culturally, economically and environmentally through several scenarios. A materials-led investigation with soft plastic bags, acrylonitrile-butadiene-styrene meal trays and polystyrene coffee stirrers revealed a variety of design possibilities. This resulted in a range of 3DP artefacts with novel visual, tactile and structural qualities. These include baskets printed from soft plastic and flax filament, a large chandelier printed from coffee stirrers, and topographic tiles printed from in-flight meal trays combined with organic waste from the New Zealand Māori Arts and Crafts Institute.   The design outputs of this research act as a tangible reference for implementation by industry partners. Additionally, it demonstrates how 3DP and sustainable design approaches can be used to reduce environmental impacts and enhance product value. With a system of 3D printed upcycling in place, it provides the opportunity to promote sustainable tourism, allowing visitors to be responsible for their waste and encourage eco-conscious behaviours.</p>


2016 ◽  
Vol 78 ◽  
pp. 73-82 ◽  
Author(s):  
F.G. Scrimgeour

This paper provides a stocktake of the status of hill country farming in New Zealand and addresses the challenges which will determine its future state and performance. It arises out of the Hill Country Symposium, held in Rotorua, New Zealand, 12-13 April 2016. This paper surveys people, policy, business and change, farming systems for hill country, soil nutrients and the environment, plants for hill country, animals, animal feeding and productivity, and strategies for achieving sustainable outcomes in the hill country. This paper concludes by identifying approaches to: support current and future hill country farmers and service providers, to effectively and efficiently deal with change; link hill farming businesses to effective value chains and new markets to achieve sufficient and stable profitability; reward farmers for the careful management of natural resources on their farm; ensure that new technologies which improve the efficient use of input resources are developed; and strategies to achieve vibrant rural communities which strengthen hill country farming businesses and their service providers. Keywords: farming systems, hill country, people, policy, productivity, profitability, sustainability


Author(s):  
Peter Hoar

Kia ora and welcome to the second issue of BackStory. The members of the Backstory Editorial Team were gratified by the encouraging response to the first issue of the journal. We hope that our currentreaders enjoy our new issue and that it will bring others to share our interest in and enjoyment of the surprisingly varied backstories of New Zealand’s art, media, and design history. This issue takes in a wide variety of topics. Imogen Van Pierce explores the controversy around the Hundertwasser Art Centre and Wairau Māori Art Gallery to be developed in Whangarei. This project has generated debate about the role of the arts and civic architecture at both the local and national levels. This is about how much New Zealanders are prepared to invest in the arts. The value of the artist in New Zealand is also examined by Mark Stocker in his article about the sculptor Margaret Butler and the local reception of her work during the late 1930s. The cultural cringe has a long genealogy. New Zealand has been photographed since the 1840s. Alan Cocker analyses the many roles that photography played in the development of local tourism during the nineteenth century. These images challenged notions of the ‘real’ and the ‘artificial’ and how new technologies mediated the world of lived experience. Recorded sound was another such technology that changed how humans experienced the world. The rise of recorded sound from the 1890s affected lives in many ways and Lewis Tennant’s contribution captures a significant tipping point in this medium’s history in New Zealand as the transition from analogue to digital sound transformed social, commercial and acoustic worlds. The New Zealand Woman’s Weekly celebrates its 85th anniversary this year but when it was launched in 1932 it seemed tohave very little chance of success. Its rival, the Mirror, had dominated the local market since its launch in 1922. Gavin Ellis investigates the Depression-era context of the Woman’s Weekly and how its founders identified a gap in the market that the Mirror was failing to fill. The work of the photographer Marti Friedlander (1908-2016) is familiar to most New Zealanders. Friedlander’s 50 year career and huge range of subjects defy easy summary. She captured New Zealanders, their lives, and their surroundings across all social and cultural borders. In the journal’s profile commentary Linda Yang celebrates Freidlander’s remarkable life and work. Linda also discusses some recent images by Friedlander and connects these with themes present in the photographer’s work from the 1960s and 1970s. The Backstory editors hope that our readers enjoy this stimulating and varied collection of work that illuminate some not so well known aspects of New Zealand’s art, media, and design history. There are many such stories yet to be told and we look forward to bringing them to you.


2020 ◽  
Vol 110 (11-12) ◽  
pp. 752-757
Author(s):  
Lukas Weiser ◽  
Marco Batschkowski ◽  
Niclas Eschner ◽  
Benjamin Häfner ◽  
Ingo Neubauer ◽  
...  

Die additive Fertigung schafft neue Gestaltungsfreiheiten. Im Rahmen des Prototypenbaus und der Kleinserienproduktion kann das Verfahren des selektiven Laserschmelzens genutzt werden. Die Verwendung in der Serienproduktion ist bisher aufgrund unzureichender Bauteilqualität, langen Anlaufzeiten sowie mangelnder Automatisierung nicht im wirtschaftlichen Rahmen möglich. Das Projekt „ReAddi“ möchte eine erste prototypische Serienfertigung entwickeln, mit der additiv gefertigte Bauteile für die Automobilindustrie wirtschaftlich produziert werden können. Additive manufacturing (AM) offers new freedom of design. The selective laser-powderbed fusion (L-PBF) process can be used for prototyping and small series production. So far, it has not been economical to use it on a production scale due to insufficient component quality, long start-up times and a lack of automation. The project ReAddi aims to develop a first prototype series production to cost-effectively manufacture 3D-printed components for the automotive industry.


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