화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2004년 가을 (10/08 ~ 10/09, 경북대학교)
권호 29권 2호, p.266
발표분야 복합재료
제목 Synthesis and Characterization of Polyurethane/Organoclay Nanocomposites
초록 Polyurethane/orgnoclay nanocomposites were prepared by the solvent process method. The cationic surfactant, benzyldimethylalkylammonium chloride(BDAC), was synthesized for funtionalization of montomrillonite(MMT). BDAC modified montmorillonite was synthesized by cationic exchange between sodium ions of MMT and alkyl ammonium cation of BDAC. Another cationic surfactant was synthesized using 1-hexadecylamine(HEXA).1
Polyurethane(PU) was synthesized from tetramethyleneglycol(PTMG), 4,4’- Dipenylmethane diisocyanate(MDI), 1,4-butanediol(1,4-BD). From the results of X-ray Diffraction(XRD), the interlayer spacing of BDAC/MMT and HEXA/MMT was increased, compared to that of the pristine Na+-MMT. Different amounts of orgnoclay ( 1, 3, 5 wt% ) were mixed with polyurethane(PU).2
We studied thermal and mechanical properties using differential scanning calorimeter(DSC), dynamic mechanical thermal analyzer(DMTA), thermal gravimetric analyzer(TGA), and so on.





Fig. 1. XRD of Na+-MMT and Fig. 2. XRD of oragnoclay(HEMA).
Organoclay(HEXA).




References
1. X.Fu, S. Qutubuddin, Polymer, 42, 807 (2001).
2. T.-K. Chen, Y.-I. Tien, K.-H. Wei, Polymer, 41, 1345 (2000).
저자 김명환, 이장우
소속 부산대
키워드 nanocomposite; organoclay; polyurethane
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