Mechanics of Composite Hydrogels
Composite hydrogels – which consist of fillers in a swollen polymeric matrix – are ubiquitous structural components of biological materials, biomedical devices, food, and consumer products. The mechanical properties of composite hydrogels are pivotal for their respective applications, and are govern...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2023
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| Online Access: | https://hdl.handle.net/1721.1/152007 |
| _version_ | 1826188498975064064 |
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| author | Song, Jake |
| author2 | McKinley, Gareth H. |
| author_facet | McKinley, Gareth H. Song, Jake |
| author_sort | Song, Jake |
| collection | MIT |
| description | Composite hydrogels – which consist of fillers in a swollen polymeric matrix – are ubiquitous structural components of biological materials, biomedical devices, food, and consumer products. The mechanical properties of composite hydrogels are pivotal for their respective applications, and are governed by physical processes which remain unexplored. This thesis explores the physical processes that underlie (i) structure formation in composite hydrogels, viewed from the perspective of the self-assembly of patchy particles; (ii) linear viscoelastic stress relaxation in composite hydrogels, as a manifestation of athermal relaxation dynamics; (iii) nonlinear compression stiffening in composite hydrogels, arising from complex particle dynamics that arise during compression; and (iv) design methods for composite hydrogels, as functional materials with programmable morphologies and stimuli-responsivity. These results provide a framework for understanding the mechanics of composite hydrogels in nature and technology. |
| first_indexed | 2024-09-23T08:00:34Z |
| format | Thesis |
| id | mit-1721.1/152007 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:00:34Z |
| publishDate | 2023 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1520072023-09-01T03:59:38Z Mechanics of Composite Hydrogels Song, Jake McKinley, Gareth H. Massachusetts Institute of Technology. Department of Materials Science and Engineering Composite hydrogels – which consist of fillers in a swollen polymeric matrix – are ubiquitous structural components of biological materials, biomedical devices, food, and consumer products. The mechanical properties of composite hydrogels are pivotal for their respective applications, and are governed by physical processes which remain unexplored. This thesis explores the physical processes that underlie (i) structure formation in composite hydrogels, viewed from the perspective of the self-assembly of patchy particles; (ii) linear viscoelastic stress relaxation in composite hydrogels, as a manifestation of athermal relaxation dynamics; (iii) nonlinear compression stiffening in composite hydrogels, arising from complex particle dynamics that arise during compression; and (iv) design methods for composite hydrogels, as functional materials with programmable morphologies and stimuli-responsivity. These results provide a framework for understanding the mechanics of composite hydrogels in nature and technology. Ph.D. 2023-08-30T15:59:06Z 2023-08-30T15:59:06Z 2023-06 2023-08-22T20:40:25.538Z Thesis https://hdl.handle.net/1721.1/152007 Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Copyright retained by author(s) https://creativecommons.org/licenses/by-sa/4.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Song, Jake Mechanics of Composite Hydrogels |
| title | Mechanics of Composite Hydrogels |
| title_full | Mechanics of Composite Hydrogels |
| title_fullStr | Mechanics of Composite Hydrogels |
| title_full_unstemmed | Mechanics of Composite Hydrogels |
| title_short | Mechanics of Composite Hydrogels |
| title_sort | mechanics of composite hydrogels |
| url | https://hdl.handle.net/1721.1/152007 |
| work_keys_str_mv | AT songjake mechanicsofcompositehydrogels |