Deformation behavior of polyethylene/silicate nanocomposites as studied by real-time wide-angle X-ray scattering

Ki Hyun Wang; In Jae Chung; Min Cheol Jang; Jong Kahk Keum; Hyun Hoon Song

doi:10.1021/ma020165n

Deformation behavior of polyethylene/silicate nanocomposites as studied by real-time wide-angle X-ray scattering

Ki Hyun Wang
, In Jae Chung
, Min Cheol Jang
, Jong Kahk Keum
, Hyun Hoon Song

Research output: Contribution to journal › Article › peer-review

99 Scopus citations

Abstract

Maleated polyethylene/silicate nanocomposite (PEMA/20A) and maleated polyethylene/SiO₂ composite (PEMA/SiO₂) were prepared by the melt compounding. Transmission electron microscopy and X-ray scattering results confirmed the exfoliation of the silicate layers (20A) throughout the maleated polyethylene (PEMA) matrix, but the SiO₂ particles were not well dispersed in the matrix. The long axes of exfoliated silicates were aligned along the tensile axis during deformation and showed no sign of cavity formation in the matrix. In PEMA/SiO₂, however, extensive amount of cavities were created along the tensile direction. During the tensile deformation the crystallographic changes of pure PEMA and composites containing 20A and SiO₂ were investigated using the real-time X-ray scattering. The 20A and SiO₂ particles in composites made little effects on the initiation of martensitic transformation, but they effectively inhibited the orientation of polyethylene lamellae in the tensile direction. The lamellar fragmentation was higher in PEMA/20A than in PEMA/SiO₂, while the former was less effective in inhibiting lamellar orientation.

Original language	English
Pages (from-to)	5529-5535
Number of pages	7
Journal	Macromolecules
Volume	35
Issue number	14
DOIs	https://doi.org/10.1021/ma020165n
State	Published - Jul 2 2002
Externally published	Yes

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@article{9312927f50714b119bae64add5b76422,

title = "Deformation behavior of polyethylene/silicate nanocomposites as studied by real-time wide-angle X-ray scattering",

abstract = "Maleated polyethylene/silicate nanocomposite (PEMA/20A) and maleated polyethylene/SiO2 composite (PEMA/SiO2) were prepared by the melt compounding. Transmission electron microscopy and X-ray scattering results confirmed the exfoliation of the silicate layers (20A) throughout the maleated polyethylene (PEMA) matrix, but the SiO2 particles were not well dispersed in the matrix. The long axes of exfoliated silicates were aligned along the tensile axis during deformation and showed no sign of cavity formation in the matrix. In PEMA/SiO2, however, extensive amount of cavities were created along the tensile direction. During the tensile deformation the crystallographic changes of pure PEMA and composites containing 20A and SiO2 were investigated using the real-time X-ray scattering. The 20A and SiO2 particles in composites made little effects on the initiation of martensitic transformation, but they effectively inhibited the orientation of polyethylene lamellae in the tensile direction. The lamellar fragmentation was higher in PEMA/20A than in PEMA/SiO2, while the former was less effective in inhibiting lamellar orientation.",

author = "Wang, \{Ki Hyun\} and Chung, \{In Jae\} and Jang, \{Min Cheol\} and Keum, \{Jong Kahk\} and Song, \{Hyun Hoon\}",

year = "2002",

month = jul,

day = "2",

doi = "10.1021/ma020165n",

language = "English",

volume = "35",

pages = "5529--5535",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "14",

}

TY - JOUR

T1 - Deformation behavior of polyethylene/silicate nanocomposites as studied by real-time wide-angle X-ray scattering

AU - Wang, Ki Hyun

AU - Chung, In Jae

AU - Jang, Min Cheol

AU - Keum, Jong Kahk

AU - Song, Hyun Hoon

PY - 2002/7/2

Y1 - 2002/7/2

N2 - Maleated polyethylene/silicate nanocomposite (PEMA/20A) and maleated polyethylene/SiO2 composite (PEMA/SiO2) were prepared by the melt compounding. Transmission electron microscopy and X-ray scattering results confirmed the exfoliation of the silicate layers (20A) throughout the maleated polyethylene (PEMA) matrix, but the SiO2 particles were not well dispersed in the matrix. The long axes of exfoliated silicates were aligned along the tensile axis during deformation and showed no sign of cavity formation in the matrix. In PEMA/SiO2, however, extensive amount of cavities were created along the tensile direction. During the tensile deformation the crystallographic changes of pure PEMA and composites containing 20A and SiO2 were investigated using the real-time X-ray scattering. The 20A and SiO2 particles in composites made little effects on the initiation of martensitic transformation, but they effectively inhibited the orientation of polyethylene lamellae in the tensile direction. The lamellar fragmentation was higher in PEMA/20A than in PEMA/SiO2, while the former was less effective in inhibiting lamellar orientation.

AB - Maleated polyethylene/silicate nanocomposite (PEMA/20A) and maleated polyethylene/SiO2 composite (PEMA/SiO2) were prepared by the melt compounding. Transmission electron microscopy and X-ray scattering results confirmed the exfoliation of the silicate layers (20A) throughout the maleated polyethylene (PEMA) matrix, but the SiO2 particles were not well dispersed in the matrix. The long axes of exfoliated silicates were aligned along the tensile axis during deformation and showed no sign of cavity formation in the matrix. In PEMA/SiO2, however, extensive amount of cavities were created along the tensile direction. During the tensile deformation the crystallographic changes of pure PEMA and composites containing 20A and SiO2 were investigated using the real-time X-ray scattering. The 20A and SiO2 particles in composites made little effects on the initiation of martensitic transformation, but they effectively inhibited the orientation of polyethylene lamellae in the tensile direction. The lamellar fragmentation was higher in PEMA/20A than in PEMA/SiO2, while the former was less effective in inhibiting lamellar orientation.

UR - https://www.scopus.com/pages/publications/0037008051

U2 - 10.1021/ma020165n

DO - 10.1021/ma020165n

M3 - Article

AN - SCOPUS:0037008051

SN - 0024-9297

VL - 35

SP - 5529

EP - 5535

JO - Macromolecules

JF - Macromolecules

IS - 14

ER -

Deformation behavior of polyethylene/silicate nanocomposites as studied by real-time wide-angle X-ray scattering

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