Abstract
Single fiber fragmentation tests were carried out to measure the properties of the fiber-matrix interface in several carbon fiber (CFs)/epoxy composite systems. Four kinds of CFs were studied: (1) primary CFs (used as received); (2) desized CFs (sizing removed through thermal treatment); (3) resized CFs (deposited with epoxy sizing by solution); (4) carbon nanotube (CNT)-grafted CFs (grown with CNTs using a chemical vapour deposition method). The interfacial shear strength decreased by around 30% for the desized CFs and the CNT-grafted CFs compared with the pristine CFs. The value of interfacial shear strength for the resized CFs was 20% larger than that of the desized CFs. There is a good agreement between the results of single fiber fragmentation tests and that of contact angle tests.
Original language | English |
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Pages (from-to) | 421-429 |
Number of pages | 9 |
Journal | Composite Interfaces |
Volume | 20 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Aug 2013 |
Externally published | Yes |
Keywords
- carbon fiber
- composite
- fragmentation
- interface