Abstract
Pitch-based ultra high modulus carbon fibers were oxygen or argon plasma treated to compare the anodized fibers. As a result, the plasma treated samples obtained much higher adhesive strength to an epoxy resin than did the anodized samples. In order to characterize the surface, the coulostatic method (an electrochemical method) was applied and laser Raman spectroscopy was employed. The specific surface area and active surface area was determined by BET surface area measurement. As a result of the plasma treatment, the double layer capacity of the surface, which was related to the apparent surface area, dramatically increased. The surface crystalline size became smaller, and the active surface area increased. We therefore proposed the following model for plasma treatment mechanism which was quite different from anodic oxidation. The surface layer was peeled and the aromatic bonds in the basal plane were broken, so the number of active sites on the surface greatly increased, thus enabling strong adhesion to epoxy resin.
| Original language | English |
|---|---|
| Pages (from-to) | 1087-1091 |
| Number of pages | 5 |
| Journal | Carbon |
| Volume | 37 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1999 Jan 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
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Plasma treatment of pitch-based ultra high modulus carbon fibers. / Fukunaga, Akihiko; Komami, T.; Ueda, S.; Nagumo, M.
In: Carbon, Vol. 37, No. 7, 01.01.1999, p. 1087-1091.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Plasma treatment of pitch-based ultra high modulus carbon fibers
AU - Fukunaga, Akihiko
AU - Komami, T.
AU - Ueda, S.
AU - Nagumo, M.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Pitch-based ultra high modulus carbon fibers were oxygen or argon plasma treated to compare the anodized fibers. As a result, the plasma treated samples obtained much higher adhesive strength to an epoxy resin than did the anodized samples. In order to characterize the surface, the coulostatic method (an electrochemical method) was applied and laser Raman spectroscopy was employed. The specific surface area and active surface area was determined by BET surface area measurement. As a result of the plasma treatment, the double layer capacity of the surface, which was related to the apparent surface area, dramatically increased. The surface crystalline size became smaller, and the active surface area increased. We therefore proposed the following model for plasma treatment mechanism which was quite different from anodic oxidation. The surface layer was peeled and the aromatic bonds in the basal plane were broken, so the number of active sites on the surface greatly increased, thus enabling strong adhesion to epoxy resin.
AB - Pitch-based ultra high modulus carbon fibers were oxygen or argon plasma treated to compare the anodized fibers. As a result, the plasma treated samples obtained much higher adhesive strength to an epoxy resin than did the anodized samples. In order to characterize the surface, the coulostatic method (an electrochemical method) was applied and laser Raman spectroscopy was employed. The specific surface area and active surface area was determined by BET surface area measurement. As a result of the plasma treatment, the double layer capacity of the surface, which was related to the apparent surface area, dramatically increased. The surface crystalline size became smaller, and the active surface area increased. We therefore proposed the following model for plasma treatment mechanism which was quite different from anodic oxidation. The surface layer was peeled and the aromatic bonds in the basal plane were broken, so the number of active sites on the surface greatly increased, thus enabling strong adhesion to epoxy resin.
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UR - http://www.scopus.com/inward/citedby.url?scp=0032681352&partnerID=8YFLogxK
U2 - 10.1016/S0008-6223(98)00308-X
DO - 10.1016/S0008-6223(98)00308-X
M3 - Article
AN - SCOPUS:0032681352
VL - 37
SP - 1087
EP - 1091
JO - Carbon
JF - Carbon
SN - 0008-6223
IS - 7
ER -