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020 ▼a 9780438058415
035 ▼a (MiAaPQ)AAI10814771
035 ▼a (MiAaPQ)lehigh:11950
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0820 ▼a 660
1001 ▼a Huang, Hao. ▼0 (orcid)0000-0002-0774-4374
24510 ▼a Drying Inhomogeneity during Film Formation of Waterborne Latex Systems: A Mechanistic Study on Skin Layer Formation.
260 ▼a [S.l.] : ▼b Lehigh University., ▼c 2018
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2018
300 ▼a 252 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
500 ▼a Advisers: Mohamed S. El-Aasser
5021 ▼a Thesis (Ph.D.)--Lehigh University, 2018.
520 ▼a Drying inhomogeneity of latex is the phenomenon where the spatial distribution of latex particles is non-uniform and evolving with time during the drying process. In order to study this phenomenon, this dissertation research employed the optical
520 ▼a For the polystyrene model latex (with Tg = 106 째C), multiple types of drying inhomogeneity were observed at room temperature. Vertical packing and horizontal drying front were the packing processes of particles from the top of latex and the edge
520 ▼a For the film-forming low-Tg model latexes (acrylate copolymer latexes with Tg < 0 째C) at room temperature, the particles on the top of drying latex are readily deformed and coalesced early into a polymer layer (called "skin layer"). The low-perm
520 ▼a It is found that, the post-added (added after polymerization) surfactant into the low-Tg latex can delay the maturation of skin layer (Stage III), accelerate the increment of hcoal with time, and shorten the film drying time. A mechanism is prop
520 ▼a Drying inhomogeneity is complex, which is not only determined by the physical properties of latex, but also influenced by the water-soluble molecules and their molecular interactions. The OCT-Gravimetry-Video method can be a useful tool to study
590 ▼a School code: 0105.
650 4 ▼a Chemical engineering.
650 4 ▼a Materials science.
650 4 ▼a Physics.
690 ▼a 0542
690 ▼a 0794
690 ▼a 0605
71020 ▼a Lehigh University. ▼b Chemical Engineering.
7730 ▼t Dissertation Abstracts International ▼g 79-10B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0105
791 ▼a Ph.D.
792 ▼a 2018
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T14998139 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자