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Citation: Li Jiang, Zhang Mingqiu, Xu Jianjun. Dynamic Mechanical Relaxation Properties of Carbon Fibre in PEEK Composites[J]. Chinese Journal of Applied Chemistry, ;1995, 12(5): 91-93. shu

Dynamic Mechanical Relaxation Properties of Carbon Fibre in PEEK Composites

1.
Institute of Solid State Pyysics, Chinese Academy of Sciences, Hefei 230031;
2.
Institute of Materials Science, Zhongshan University, Guangzhou;
3.
Qingdao College of Chemical Engineering, Qingdao

Received Date: 21 September 1994
Revised Date: 22 June 1995

The dynamic mechanical behavior of poly(ether ether ketone) (PEEK) mixed with carbon fibre(CF) has been investigated from room temperature to 250℃. Two internal friction peaks (α peak and α' peak) have been found in this temperature range. The experi-ments show that α peak relates to a relaxation course in which glasslike state transforms to rubberlike state and peak α' relates to a pre-melting course. PEEK specimens containing dif-ferent CF content show different behavior for both α and α'peaks. DSC tests give out the same results as the dvnamic mechanical measurements.
- PEEK,
- CF,
- internal friction,
- T_g
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