Use of FTIR Analysis to Control the Self-Healing Functionality of Epoxy Resins

Thermoplastic acrylic resin with self‐healing properties

“…ROMP polymers can display different characteristics, such as cis/trans isomerization, tacticity, etc. In the spectrum of the bleed, the signal at 966 cm 21 was assigned to the carbon hydrogen bending vibration of a trans carbon double bond of the ring-opened poly(DCPD) [2,36,54,55]. This signal interfered with the band at 987 cm 21 and shoulder at 966 cm 21 that belong to the OACH 3 bending and CACH 3 rocking in PMMA.…”

Self-healing microcapsules encapsulated with carbon nanotubes for improved thermal and electrical properties

“…The sharp peaks appear at a wavelength of 3060 cm À1 and 1465 cm À1 , corresponding to the vinyl group (-CH]CH 2 ) and carbonyl group (C]O) between 1680 and 1630 cm À1 conrms the presence of DCPD in both types of microcapsules. 26 The presence of CNT is identied in the DCPD-CNT-UF sample with peaks appearing at 800 cm À1 which shows a 44% match with a high carbon content compound, ethyl toluene (C 9 H 12 ) from in-built library data of FTIR-ATR. The characteristic peaks at 3418, 3000 to 2920, 1650 and 1556 cm À1 in both types of microcapsules represent O-H stretching, C-H stretching, C]O stretching, N-H bending, C-H bending, and C-N stretching, respectively, which conrm the presence of shell material, poly urea-formaldehyde (PUF).…”

Healing efficiency of epoxy‐based materials for structural applications

“…Infrared Analysis. Infrared spectroscopy provides a useful way to identify metathesis products and therefore catalyst activity [7,32,33]. The manufactured EBA-HG1-CAP ENB (170) sample was cut by a serrated blade; the powder produced from the sample was collected in a mortar and a drop of healing agent (5-ethylidene-2-norbornene -ENB) was added before dispersing the powder sample into the KBr disks for FTIR investigation.…”