| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.113 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Structure-Adhesion Relationship of Waterborne Anionic Polyurethanes |
| 초록 | Waterborne polyurethanes can be formulated with little or no solvent, and hence they are nontoxic, nonflammable, and do not pollute the air. Such environmental advantages coupled with increasing solvent price have steadily expanded their usages in a number of applications in textile coatings, fiber sizings, and adhesives of many polymeric and glassy surfaces. In this study, to make high performance PU adhesive, we introduced various types of chain extenders and molecular weight of the macroglycol. Aqueous polyurethanes dispersion based on isophorone diisocyanate(IPDI), poly(tetramethylene adipate) glycol(PTAd), and dimethylolpropionic acid(DMPA) were synthesized by prepolymer mixing process. The increasement in the molecular weight of the macroglycol changed the degree of phase separation as well as the interactions between the hard and soft domains in the polyurethane structure. Also, we prepared polyurethane LIPN(latex interpenetrating polymer network), semi-LIPN and emulsion blend using butyl acrylate which subsequently were compared in terms of adhesion properties. Relationships between microphase separation and surface properties were characterized by dynamic mechenical thermal analyzer(DMTA), differential scanning calorimetry(DSC), T-peel and tensile test measurements and so on. |
| 저자 | 전호탁, 서장원, 김병규 |
| 소속 | 부산대 |
| 키워드 | |
