DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 최시영 | - |
dc.contributor.author | Pi, Bong Soo | - |
dc.contributor.author | 피봉수 | - |
dc.date.accessioned | 2024-08-08T19:31:17Z | - |
dc.date.available | 2024-08-08T19:31:17Z | - |
dc.date.issued | 2024 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1099285&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/322066 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2024.2,[v, 54 p. :] | - |
dc.description.abstract | A facile and innovative strategy to design bio-based, processible, reusable, and self-healing pressure sensitive adhesive (PSA) is developed. In this work, 100% of PSA composition is replaced with fully bio-based, bio-degradable, renewable, and even edible feedstock via only a simple and eco-friendly process excluding any use of solvents or chemical reagents. The PSA formulation is based on a colloidal mixture of amylopectin nanoparticles (AMPs), cellulose nanofibrils (CNFs), and either sorbitol (SBT) or mannitol (MNT), which play crucial roles as a firm base, reinforcing structural support, and a plasticizer/binder, respectively, combined with glycerol in the presence (1$^{st}$ approach) and absence (2$^{nd}$ approach) of water. Both approaches can yield excellent rheological and adhesion properties, which are comparable to conventional petrochemical-based products in terms of tack, peel, and shear strength, by leveraging physical crosslinking through hydrogen bonding among the constituents, especially between AMPs and SBT/MNT, and by balancing bulk viscoelastic properties. While the water-based PSA is vulnerable to high humidity, the glycerol-based PSA becomes so humidity-resistant that the relative humidity over 90% can’t deteriorate its peel and shear strength. The optimal glycerol-based formulation also showcases a high self-healing ability. While there are areas for further optimization, this work provides a foundational step towards the most sustainable adhesive industry. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 천연 점착제▼a아밀로펙틴▼a셀룰로오즈 나노피브릴▼a솔비톨▼a만니톨▼a글리세롤 | - |
dc.subject | Bio-based pressure sensitive adhesives▼aAmylopectin▼aCellulose nano fibril (CNF)▼aSorbitol▼aMannitol▼aGlycerol | - |
dc.title | Fully bio-based pressure sensitive adhesives using amylopectin | - |
dc.title.alternative | 아밀로펙틴을 이용한 100% 천연 점착제에 관한 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
dc.contributor.alternativeauthor | Choi, Siyoung | - |
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