Polyurethane nanocomposites with organoclay
- Authors
- An, YU; Chang, JH; Park, YH; Park, JM
- Issue Date
- May-2002
- Publisher
- POLYMER SOC KOREA
- Keywords
- polyurethane nanocomposites; organoclay; thermo-mechanical properties; morphology; gas permeability
- Citation
- POLYMER-KOREA, v.26, no.3, pp 381 - 388
- Pages
- 8
- Journal Title
- POLYMER-KOREA
- Volume
- 26
- Number
- 3
- Start Page
- 381
- End Page
- 388
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27042
- ISSN
- 0379-153X
2234-8077
- Abstract
- The properties of polyurethane (PU) nanocomposites with organoclay have been compared in terms of their thermo-mechanical properties, morphology, and gas permeability. Hexadecylamine-montmorillonite (C-16-MMT) was used as an organoclay to make PU hybrid films. The properties were investigated as a function of organoclay content (1-4 wt%) in the PU matrix. Transmission electron microscopy (TEM) photographs showed that most clay layers were dispersed homogeneously into the matrix polymer in nano-scale, although some particles of clay were agglomerated. We also found that the addition of only a small amount of organoclay was enough to improve the thermal stabilities and mechanical properties of PU hybrid films while gas permeability was reduced. Even at low organoclay content (<5 wt%), the PU nanocomposite showed much better thermo-mechanical properties, and lower gas permeability than pure PU.
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