Soluble Polyimide‐Modified Epoxy Resin With Enhanced Comprehensive Performances DOI
Hui Zhang,

Zhi Xiang,

Pengfei Fang

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 28, 2025

ABSTRACT This research is dedicated to improving the mechanical properties and thermal stability of epoxy resin modified with polyimide. Two types imides, along soluble polyimides incorporating trifluoromethyl tert‐butyl groups, were synthesized as modifiers for resins. We investigated effects imide units varying structures on mechanical, thermal, dielectric The six‐membered ring demonstrated enhanced compared its five‐membered counterpart. resins exhibited a substantial improvement in properties, elongation at break increasing from 6.5% 11.33%, unmodified ones. SEM images fracture surfaces showed distinct features, which indicated toughness result incorporation units. These also excellent (with char yield 31.5% 800°C), low hydrophilicity (water absorption ranging 0.69% 1.54%, contact angles between 72° 85°), superior (the constant decreased by 1.95 10 3 Hz, while volume resistivity increased two orders magnitude). provides new insights into application aerospace advanced electronic materials fields.

Language: Английский

Soluble Polyimide‐Modified Epoxy Resin With Enhanced Comprehensive Performances DOI
Hui Zhang,

Zhi Xiang,

Pengfei Fang

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 28, 2025

ABSTRACT This research is dedicated to improving the mechanical properties and thermal stability of epoxy resin modified with polyimide. Two types imides, along soluble polyimides incorporating trifluoromethyl tert‐butyl groups, were synthesized as modifiers for resins. We investigated effects imide units varying structures on mechanical, thermal, dielectric The six‐membered ring demonstrated enhanced compared its five‐membered counterpart. resins exhibited a substantial improvement in properties, elongation at break increasing from 6.5% 11.33%, unmodified ones. SEM images fracture surfaces showed distinct features, which indicated toughness result incorporation units. These also excellent (with char yield 31.5% 800°C), low hydrophilicity (water absorption ranging 0.69% 1.54%, contact angles between 72° 85°), superior (the constant decreased by 1.95 10 3 Hz, while volume resistivity increased two orders magnitude). provides new insights into application aerospace advanced electronic materials fields.

Language: Английский

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