Preparation of polyethylene-octene elastomer/clay nanocomposite and microcellular foam processed in supercritical carbon dioxide
- Authors
- Chang, Young wook; Lee, Dongsuk; Bae, Seong youl
- Issue Date
- Feb-2006
- Publisher
- JOHN WILEY & SONS LTD
- Keywords
- polyethylene-octene elastomer (POE); microcellular foam; intercalated nanocomposite; supercritical carbon dioxide
- Citation
- POLYMER INTERNATIONAL, v.55, no.2, pp.184 - 189
- Indexed
- SCIE
SCOPUS
- Journal Title
- POLYMER INTERNATIONAL
- Volume
- 55
- Number
- 2
- Start Page
- 184
- End Page
- 189
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/45045
- DOI
- 10.1002/pi.1936
- ISSN
- 0959-8103
- Abstract
- Polyethylene-octene elastomer (POE)/organoclay nanocomposite was prepared by melt mixing of the POE with an organoclay (Cloisite 20A) in an internal mixer, using poly[ethylene-co-(methyl acrylate)-co-(glycidyl methacrylate)] copolymer (E-MG-GMA) as a compatibilizer. X-ray diffraction and transmission electron microscopy analysis revealed that an intercalated nanocomposite was formed and the silicate layers of the clay were uniformly dispersed at a nanometre scale in the POE matrix. The nanocomposite exhibited greatly enhanced tensile and dynamic mechanical properties compared with the POE/clay composite without the compatibilizer. The POE/E-MA-GMA/clay nanocomposite was used to produce foams by a batch process in an autoclave, with supercritical carbon dioxide as a foaming agent. The nanocomposite produced a microcellular foam with average cell size as small as 3.4 mu m and cell density as high as 2 x 10(11) cells cm(-3). (c) 2005 Society of Chemical Industry.
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