Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system
The high processing temperatures traditionally required for Additive Manufacturing (AM) often degrade polymer powders, limiting part performance and recyclability. Reactive Binder Jetting (RBJ), a novel AM process, addresses these challenges by utilizing a dual-ink binding system that facilitates...
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| Format: | Thesis (University of Nottingham only) |
| Language: | English |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/80200/ |
| _version_ | 1848801228851511296 |
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| author | Torres, Arielle Colette |
| author_facet | Torres, Arielle Colette |
| author_sort | Torres, Arielle Colette |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The high processing temperatures traditionally required for Additive Manufacturing
(AM) often degrade polymer powders, limiting part performance and recyclability. Reactive
Binder Jetting (RBJ), a novel AM process, addresses these challenges by utilizing
a dual-ink binding system that facilitates powder consolidation at ambient temperatures.
This eliminates the need for energy-intensive equipment, such as lasers or heaters,
enabling sustainable manufacturing of complex, functional parts.
This research focuses on the fabrication of polyurethane (PU) components using RBJ.
PU is highly versatile due to its tunable co-polymer structure, making it a valuable
material for applications ranging from insulation foams to biomedical implants. RBJ
challenges addressed in thesis include reliable ink jetting, maintaining stoichiometry and
achieving optimal saturation levels for part consolidation. To address these challenges,
all materials were characterised, inkjet printing parameters were optimised, and fully
consolidated, three-dimensional (3D) 'green' part tested.
The �ndings demonstrate RBJ printing is capable of forming robust polymer 'green'
parts, introducing potential applications within the biomedical or sports industries.
Through characterisation of reactive inks, control of droplet deposition strategies, and
validation via mechanical testing, this work establishes RBJ as a sustainable alternative
for polymer AM. The research highlights opportunities for future innovations, such as
expanding the range of printable materials, including sustainable inks and reactive
powders, improving RBJ printing process scalability, and developing multifunctional
components with gradient properties. |
| first_indexed | 2025-11-14T21:04:08Z |
| format | Thesis (University of Nottingham only) |
| id | nottingham-80200 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:04:08Z |
| publishDate | 2025 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-802002025-07-31T04:40:07Z https://eprints.nottingham.ac.uk/80200/ Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system Torres, Arielle Colette The high processing temperatures traditionally required for Additive Manufacturing (AM) often degrade polymer powders, limiting part performance and recyclability. Reactive Binder Jetting (RBJ), a novel AM process, addresses these challenges by utilizing a dual-ink binding system that facilitates powder consolidation at ambient temperatures. This eliminates the need for energy-intensive equipment, such as lasers or heaters, enabling sustainable manufacturing of complex, functional parts. This research focuses on the fabrication of polyurethane (PU) components using RBJ. PU is highly versatile due to its tunable co-polymer structure, making it a valuable material for applications ranging from insulation foams to biomedical implants. RBJ challenges addressed in thesis include reliable ink jetting, maintaining stoichiometry and achieving optimal saturation levels for part consolidation. To address these challenges, all materials were characterised, inkjet printing parameters were optimised, and fully consolidated, three-dimensional (3D) 'green' part tested. The �ndings demonstrate RBJ printing is capable of forming robust polymer 'green' parts, introducing potential applications within the biomedical or sports industries. Through characterisation of reactive inks, control of droplet deposition strategies, and validation via mechanical testing, this work establishes RBJ as a sustainable alternative for polymer AM. The research highlights opportunities for future innovations, such as expanding the range of printable materials, including sustainable inks and reactive powders, improving RBJ printing process scalability, and developing multifunctional components with gradient properties. 2025-07-31 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en arr https://eprints.nottingham.ac.uk/80200/1/Torres%2C%20Arielle%2C%2014251327%2C%20Second.pdf Torres, Arielle Colette (2025) Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system. PhD thesis, University of Nottingham. Additive manufacturing; Powder consolidation; Polyurethane components; Ink jetting; Stoichiometry; Saturation levels |
| spellingShingle | Additive manufacturing; Powder consolidation; Polyurethane components; Ink jetting; Stoichiometry; Saturation levels Torres, Arielle Colette Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system |
| title | Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system |
| title_full | Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system |
| title_fullStr | Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system |
| title_full_unstemmed | Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system |
| title_short | Fabrication of polyurethane composites via reactive binder jetting (RBJ) using a dual-ink binding system |
| title_sort | fabrication of polyurethane composites via reactive binder jetting (rbj) using a dual-ink binding system |
| topic | Additive manufacturing; Powder consolidation; Polyurethane components; Ink jetting; Stoichiometry; Saturation levels |
| url | https://eprints.nottingham.ac.uk/80200/ |