Evaluation of Stabilization Performances of Antioxidants in Poly(ether ether ketone)

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (5): 907-911 .

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Evaluation of Stabilization Performances of Antioxidants in Poly(ether ether ketone)

ZHOU Zheng, ZHOU Fu-gui, ZHANG Shu-ling, MU Jian-xin, YUE Xi-gui, WANG Gui-bin

High Performance Plastics Engineering Research Center, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, P. R. China

Received:2011-12-27 Revised:2012-01-19 Online:2012-09-25 Published:2012-09-07
Supported by:
Supported by the National Natural Science Foundation of China(No.51073066).

Abstract

Abstract: Two types of antioxidants(a primary antioxidant and a secondary antioxidant) were used to improve the stability of poly(ether ether ketone)(PEEK). The effects of the antioxidants on the properties of PEEK and the stabilization mechanism were investigated by some characterization methods, such as rheometer, thermogravimetric ana- lysis(TGA), universal tester and electron spin resonance(ESR). The results indicate that the efficiency of the phosphorous antioxidant(DS) in improving the stability of PEEK was better than that of the phenolic antioxidant(DN) in both melting stability and thermal stability, and the thermal stability of PEEK sample containing 0.07%(mass fraction) DS was the best among all the samples due to the decrease of the free radicals density, as proven by ESR measurement. Additionally, no obvious changes could be observed in mechanical properties of PEEK containing antioxidants compared to those of virgin PEEK.

Key words: Poly(ether ether ketone), Antioxidant, Stability, Mechanical property, Radical

ZHOU Zheng, ZHOU Fu-gui, ZHANG Shu-ling, MU Jian-xin, YUE Xi-gui, WANG Gui-bin. Evaluation of Stabilization Performances of Antioxidants in Poly(ether ether ketone)[J]. Chemical Research in Chinese Universities, 2012, 28(5): 907-911 .

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Evaluation of Stabilization Performances of Antioxidants in Poly(ether ether ketone)

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