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Journal of Materials Science

, Volume 44, Issue 5, pp 1251–1257 | Cite as

Investigation on thermo-stabilization effect and nonisothermal degradation kinetics of the new compound additives on polyoxymethylene

  • Jian Shi
  • Bo Jing
  • Xiaoxuan Zou
  • Hongjun Luo
  • Wenli DaiEmail author
Article

Abstract

An increase in the thermal stability of several new additives on polyoxymethylene (POM) was attempted via thermogravimetric analysis (TGA) (static state) and balance torque testing (dynamic state), which truly reflected the processing in practice. The thermal stability of POM was improved by adding some of additives actually, especially for the compound stabilizer with oxidized polyethylene wax (OPE), low molecular weight polyamide 6 (LMWPA6) and triphenyl phosphate (TPP) from the static and dynamic data. Furthermore, the kinetic parameters for compound stabilizers of POM degradation were calculated from thermogravimetry (TG) curves by Coats-Redfernd method. The results reveal that the degradation temperatures of POM can be obviously raised by compound stabilizers OPE/LMWPA6/TPP. The long-term thermo-stability test of POM shows that POM with stabilizing system above has no obvious decrease in impact strength after storage duration of 15 days in an oven at 140 °C.

Keywords

Impact Strength Compound Stabilizer Melt Index Polyoxymethylene Onset Degradation Temperature 

Notes

Acknowledgement

We gratefully acknowledge the support by Hunan Provincial Natural Science Foundation of China (07JJ6016).

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Jian Shi
    • 1
    • 2
  • Bo Jing
    • 1
    • 3
  • Xiaoxuan Zou
    • 1
    • 3
  • Hongjun Luo
    • 1
    • 3
  • Wenli Dai
    • 1
    • 2
    Email author
  1. 1.College of Chemistry, Xiangtan UniversityHunanChina
  2. 2.Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan UniversityHunanChina
  3. 3.Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan ProvinceXiangtan UniversityHunanChina

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