DOI: 10.1039/d6ra02004f ISSN: 2046-2069
Brittleness mechanisms and toughening strategies of electrical insulating polymer materials under extreme cryogenic conditions
Yuhan Deng, Mengjin Li, Yuhong Yuan, Baowen Xing, Wanchuan Liu, Jingrui LiuThe review reveals how chain freezing, free-volume collapse and secondary relaxation suppression induce dielectric embrittlement at cryotemperatures, and compares intrinsic/extrinsic toughening for design for superconducting & hydrogen systems.