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Author

Lee, Sang-Young
Energy Soft-Materials Lab (ESML)
Research Interests
  • Soft Materials for Energy Storage/ Conversion Systems

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Laminar morphology development using hybrid EVOH-nylon blends

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Title
Laminar morphology development using hybrid EVOH-nylon blends
Author
Lee, Sang-YoungKim, S.C.
Keywords
Hybrid dispersed phases; Laminar morphology; Oxygen and toluene barrier properties; Tensile properties
Issue Date
199803
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF APPLIED POLYMER SCIENCE, v.67, no.12, pp.2001 - 2014
Abstract
Properties of blends having two types of hybrid dispersed phases as laminar morphology were investigated. The hybrid dispersed phases were prepared by preblending nylon and ethylene-vinyl alcohol (EVOH) in solid state (E + N) and in melt state (E/N). Oxygen and toluene barrier properties through the hybrid-dispersed phases in low-density polyethylene (LDPE) matrix were analyzed considering the morphological changes (number and size of layers). Oxygen barrier properties of the blends of LDPE E + N hybrid dispersed phase having separate domains of nylon and EVOH were found to be linearly dependent on EVOH composition in the blend, but toluene barrier properties of the blends exhibited negative deviation. The other hybrid dispersed phase (E/N) in LDPE matrix, having comingled dispersed phase of nylon and EVOH, exhibited positive deviations in both oxygen and toluene barrier properties. Tensile properties also showed positive deviation. Basic studies on the melt blend (E/N) of EVOH and nylon 6 showed some miscibility, which was revealed from melting point depression, and positive deviation in complex viscosity and tensile properties of the blend.
URI
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DOI
http://dx.doi.org/10.1002/(SICI)1097-4628(19980321)67:12<2001::AID-APP6>3.0.CO;2-Q
ISSN
0021-8995
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