Journal of Northeastern University ›› 2013, Vol. 34 ›› Issue (9): 1357-1360.DOI: -

• Resources & Civil Engineering • Previous Articles     Next Articles

Thermal Stability of Polyphenylene Sulfide Filter Media Using Thermogravimetry

CHANG Deqiang1,2, LIU Jingxian1,2, MAO Ning1,2, CHEN Baozhi1   

  1. 1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China; 2. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China.
  • Received:2013-03-22 Revised:2013-03-22 Online:2013-09-15 Published:2013-04-22
  • Contact: CHANG Deqiang
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Abstract: To study the thermal stability of PPS(polyphenylene sulfide)filter media, thermal degradation kinetics behavior of two kinds of PPS filter media was analyzed by thermogravimetry. Thermal degradation activation energy of PPS filter media in N2 was obtained according to FlynnWallOzawa method, and thermal stability of PPS filter media was discussed. The results showed that the initial decomposition temperature and activation energy of N3 sample are both higher than those of B1 sample; at the heating rate of 5K/min,the initial weight loss temperature of N3 sample is 12℃ higher than that of B1 sample; during the whole heating process, the weight loss rate of N3 sample is 5240% which is smaller than that of B1(5367%); the average thermal degradation activation energy of N3 is 55kJ/mol,bigger than that of B1 sample. Consequently, the thermal stability of N3 sample is better than that of B1 sample, and kinetic analysis can be used as an important method to evaluate the thermal stability of filter media.

Key words: polyphenylene sulfide, filter media, thermal decomposition, kinetics, thermal stability

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