Smart Materials of Cured Epoxy Polymer Modified by 6F-PEEK with Shape Memory Effect

Abstract:

We demonstrated a method of fabricating thermosetting epoxy polymer with shape memory effect modified Poly (ether ether ketone) (6F-PEEK) based on the formation of a phase-segregated morphology. The peculiarities of shape memory effects of the epoxy resin modified by 6F-PEEK were investigated. DMA result showed two glass transition temperatures in this blended material. The cured epoxy phase showing high Tg of 223oC acted as hard-segment-forming phase the and was responsible for the permanent shape. The 6F-PEEK can be used as switching phase for a thermally induced shape-memory effect. The transition temperature (Ttran) was 150oC, which was between the Tg of cured epoxy and 6F-PEEK. At the special concentrations of 6F-PEEK, the shape memory effect accompanied by a significant increase in volume was observed. The highest shape memory effect was obtained for the blended material with 25.00 wt% of 6F-PEEK. The shape retention rates and the shape recovery rates were 96-99% and 100%, respectively. The times of shape-recovery were all defined in 2 min. The mechanism of shape memory effects and the mechanical properties of the cured resin were discussed.

• Periodical: Advanced Materials Research (Volumes 152-153)
• Pages: 530-535
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.152-153.530
• Online since: October 2010
• Authors: Jun Peng Gao, Chen Qian Zhang, Xian Cheng He, Hong Yi Ma, Xue Feng An, Xiao Su Yi, Guo Dong Dang, Chun Hai Chen
• Keywords: 6F-PEEK, Epoxy Resin (ER), Shape Memory Effects (SME)

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