Research on the interfacial adhesion properties of carbon fibers modified by sizing agents to polycarbonate using a single-filament fragmentation test

YAO Ting-ting; WU Gang-ping; LIU Yu-ting; SONG Hong-yan

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Article Navigation > New Carbon Mater. > 2019 > 34(1): 60-67

YAO Ting-ting, WU Gang-ping, LIU Yu-ting, SONG Hong-yan. Research on the interfacial adhesion properties of carbon fibers modified by sizing agents to polycarbonate using a single-filament fragmentation test. New Carbon Mater., 2019, 34(1): 60-67.

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Research on the interfacial adhesion properties of carbon fibers modified by sizing agents to polycarbonate using a single-filament fragmentation test

YAO Ting-ting^1,2,3,
WU Gang-ping^{1,2,3
,},
LIU Yu-ting^1,3,
SONG Hong-yan^1,3

1.
CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
3.
National Engineering Laboratory for Carbon Fiber technology, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Funds: National Natural Science Foundation of China(U1362107); National Natural Science Foundation of China & Shanxi Coal-based Low-carbon Corporation (U1810116).

Received Date: 2018-12-05
Accepted Date: 2019-02-20
Rev Recd Date: 2019-01-22
Publish Date: 2019-02-28

Abstract

Abstract

The effects of different sizing agents on the interfacial adhesion between carbon fibers and polycarbonate were investigated using a home-made polycarbonate emulsion, and polyvinyl acetate, polyurethane and polyethylene aqueous emulsions as the sizing agents. The chemical structures of the sizing agents were characterized by FT-IR and TG-MS, the surface characteristics of the modified carbon fibers by SEM, XPS and TGA, and the interfacial shear strength (IFSS) between the coated carbon fibers and the polycarbonate by a single-filament fragmentation test. Results showed that IFSS decreased in the following order:polyurethane (29.19 MPa) > polyvinyl acetate (22.58 MPa) > self-made (20.36 MPa) > polyethylene (14.52 MPa). Hydrogen bonds contribute the most to the interfacial adhesion forces while polar interaction contributes less and dispersion forces the least. The highest IFSS using polyurethane is ascribed to the formation of hydrogen bonds at the interface.
- Carbon fibers,
- Polycarbonate,
- Sizing agents,
- Interfacial adhesion,
- Single filament fragmentation test

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References(21)

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