Effects of nanoclay on the properties of low temperature cured polyimide system

Kwangin Kim, Taewon Yoo, Ki Ho Nam, Patrick Han, Wonbong Jang, Haksoo Han

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Polyimide is a major polymer material in the electronics industry, and we conducted a study to cure polyimide at low temperatures in order to improve its thermal and mechanical properties. In this study, polyimide/clay nanocomposites were prepared by the reaction of 4,4’-(hexafluoro isopropylidene) diphthalic anhydride (6FDA) and 4,4’-oxydianiline (ODA) with the addition of 1,4-dizabicyclo[2.2.2]octane (DABCO) as a low-temperature catalyst and nanoclay (Cloisite 20A). The synthesis of polyimide at low temperatures and the dispersion of a nanoclay in the polymer matrix was confirmed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD), respectively. Thermal stabilities of the nanocomposites were confirmed by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The mechanical properties were measured by an universal testing machine. We demonstrated that when polyimide was cured at low temperatures and short curing times, it was possible to improve the thermal and mechanical properties via the addition of a catalyst and inorganic material. Polyimide with DABCO and 0.25 wt% nanoclay showed a 5 °C higher degradation temperature, 560.88 °C; a 6 °C higher glass transition temperature, 293.62 °C; and a 20 MPa greater tensile strength, 136.94 MPa. Therefore, the polyimide curing process was demonstrated to be successful at low temperatures.

[Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1160-1164
Number of pages5
JournalMacromolecular Research
Issue number11
Publication statusPublished - 2014 Nov 21

Bibliographical note

Publisher Copyright:
© 2014, The Polymer Society of Korea and Springer Sciene+Business Media Dordrecht.

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


Dive into the research topics of 'Effects of nanoclay on the properties of low temperature cured polyimide system'. Together they form a unique fingerprint.

Cite this