Radiation-induced crosslinking of polyamide11 in the presence of triallylisocyanurate

Published Date
Polymer Degradation and Stability
February 2017, Vol.136:98–102, doi:10.1016/j.polymdegradstab.2016.12.014

Author

• Naotsugu Nagasawa ^a,,
 
• Takanori Tago ^b
 
• Hisaaki Kudo ^b
 
• Mitsumasa Taguchi ^a

• aNational Institutes for Quantum and Radiological Science and Technology (QST), Quantum Beam Science Directorate, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
• bUniversity of Tokyo, Graduate School of Engineering, 7-3-1 Hongo, Bunkyou, 113-8656 Tokyo, Japan

Received 1 September 2016. Revised 17 December 2016. Accepted 24 December 2016. Available online 26 December 2016.

Abstract

Crosslinking structures were formed in electron beam irradiated polyamide11 (PA11) without and with triallyl isocyanurate (TAIC). The gel fractions of PA11 without TAIC steeply increased above the dose of 190 kGy, and saturated to 76.2% at higher than 750 kGy. PA11 was ascertained as a radiation crosslinking type polymer. TAIC was found to promote the induction of crosslinking of PA11 main chains. The network structure of PA11 was effectively formed in 3 phr (per hundred resin) TAIC at the dose of 10 kGy. The crosslinked PA11 increased the thermal stability, as demonstrated by retention of its original shape at temperatures even higher than 200 °C.

Keywords

Polyamide11

Radiation crosslinking

Triallyl isocyanurate

Heat resistance

---

Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

• ∗ 
  Corresponding author.

© 2017 Elsevier Ltd. All rights reserved.

For further details log on website :
http://www.sciencedirect.com/science/article/pii/S0141391016303937