Journal of Polymer Science, Год журнала: 2024, Номер unknown

Опубликована: Дек. 16, 2024

ABSTRACT Simultaneously increasing mechanical strength, toughness, thermal stability, and flame retardancy of epoxy thermoset without compromising transparency is appealing but challenging. To address that goal, a Schiff base VDEP developed. The neat VDEP‐cured product, 100wt% , not only shows comparable strength to conventional also can be degraded in 10% H 2 SO 4 /THF/H O solution 24 h, showing great degradability under mild conditions. More importantly, proper addition simultaneously increases the tensile impact T g d5% char residue, UV shielding cured epoxies while providing self‐extinguishing ability. All those enhancements are achieved deteriorating transparency. When 15 wt% added, reaches 91.07 MPa, with 36.7% increase; 40.73 kJ m −2 33.8% increase. enhancement due reinforcing effect intermolecular interaction compacted network caused by free volume reduction. higher toughness results from greater mobility chain segments, reduced crosslinking density energy dissipative interaction. rigid two benzene‐conjugated structure abundant hydrogen bonding contribute . Therefore, this work provides degradable high‐performance based on it.

Язык: Английский