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DC Field | Value | Language |
---|---|---|
dc.citation.number | 5 | - |
dc.citation.startPage | 2085 | - |
dc.citation.title | MATERIALS | - |
dc.citation.volume | 16 | - |
dc.contributor.author | Shin, Woohyeon | - |
dc.contributor.author | Chung, Kyeongwoon | - |
dc.date.accessioned | 2024-02-15T15:35:12Z | - |
dc.date.available | 2024-02-15T15:35:12Z | - |
dc.date.created | 2024-02-15 | - |
dc.date.issued | 2023-03 | - |
dc.description.abstract | The three-dimensional (3D) printing of hydrogel is an issue of interest in various applications to build optimized 3D structured devices beyond 2D-shaped conventional structures such as film or mesh. The materials design for the hydrogel, as well as the resulting rheological properties, largely affect its applicability in extrusion-based 3D printing. Here, we prepared a new poly(acrylic acid)-based self-healing hydrogel by controlling the hydrogel design factors based on a defined material design window in terms of rheological properties for application in extrusion-based 3D printing. The hydrogel is designed with a poly(acrylic acid) main chain with a 1.0 mol% covalent crosslinker and 2.0 mol% dynamic crosslinker, and is successfully prepared based on radical polymerization utilizing ammonium persulfate as a thermal initiator. With the prepared poly(acrylic acid)-based hydrogel, self-healing characteristics, rheological characteristics, and 3D printing applicability are deeply investigated. The hydrogel spontaneously heals mechanical damage within 30 min and exhibits appropriate rheological characteristics, including G 'similar to 1075 Pa and tan delta similar to 0.12, for extrusion-based 3D printing. Upon application in 3D printing, various 3D structures of hydrogel were successfully fabricated without showing structural deformation during the 3D printing process. Furthermore, the 3D-printed hydrogel structures exhibited excellent dimensional accuracy of the printed shape compared to the designed 3D structure. | - |
dc.identifier.bibliographicCitation | MATERIALS, v.16, no.5, pp.2085 | - |
dc.identifier.doi | 10.3390/ma16052085 | - |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.scopusid | 2-s2.0-85149861953 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81383 | - |
dc.identifier.wosid | 000947827900001 | - |
dc.language | 영어 | - |
dc.publisher | MDPI | - |
dc.title | Preparation and Characterization of Poly(Acrylic Acid)-Based Self-Healing Hydrogel for 3D Shape Fabrication via Extrusion-Based 3D Printing | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Materials Science; Metallurgy & Metallurgical Engineering; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | poly(acrylic acid) | - |
dc.subject.keywordAuthor | extrusion-based 3D printing | - |
dc.subject.keywordAuthor | hydrogel | - |
dc.subject.keywordAuthor | self-healing polymer | - |
dc.subject.keywordAuthor | rheological characteristics | - |
dc.subject.keywordPlus | DRUG-RELEASE | - |
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