Poly(butylene adipate‐co‐terephthalate) (PBAT)/Antimony‐doped Tin Oxide Polymer Composite for Near Infrared Absorption Coating Applications

Abstract

The biodegradable poly(butylene adipate‐co‐terephthalate) (PBAT) polymer was synthesized via one pot synthesis technique using adipic acid and butanediol. The polymerization of synthesized sample was confirmed using FTIR, NMR, and TGA analysis. The PBAT/ATO films were fabricated via spray coating technique utilizing various concentrations of ATO nanoparticles in PBAT polymer solution and optimized the film quality through optical (NIR) and surface analysis. The polymer film having 7 wt % of ATO in PBAT showed good transparency in the UV, visible light and shown approximately 41% absorption in the near infrared region. Moreover, the 7 wt % ATO based polymer film exhibited low surface roughness and uniform coating over the substrate. In addition, near infrared absorbing efficiency of PBAT/ATO composite film in outdoor was demonstrated by constructing a PBAT/ATO (7 wt %)/vinyl greenhouse and the temperature differences were comparatively studied with a bare vinyl green house.

Special interface structure and properties for compatible packaging film from biodegradable poly (butylene adipate‐co‐terephthalate)/corn starch composite

“…The absorption peaks in the 3000-2800 cm À1 range are due to the symmetric and asymmetric stretching vibrations of C-H methyl groups, while the spectral band between 3000 and 3100 cm À1 corresponds to the stretching vibration of C-H on the benzene ring. 35 For P90CS10PU3 and P90CS10PU5 sample materials, the symmetrical stretching vibration peak of -NCO at 2272 cm À1 disappeared, suggesting the consumption of the -NCO groups in PCLPU. Theoretically, the disappearance of the peak indicates a reaction between the -NCO groups in PCLPU and the -OH groups in corn starch.…”

Multiplexing near‐infrared quantum dot fluorescence through vibrational and electronic transition signatures

“…Vibrational overtone transition in PS and 4f‐4f electronic transition in lanthanide ion were successfully exploited to produce characteristic NIR absorbing films. More NIR codes would be created by modifying the types (e.g., C–H, C–N, and C–Cl) and relative ratios of each vibrational modes 26 . NIR emitting codes could be applied for military purpose such as the identification of friend or foe and concealed markings.…”

“…More NIR codes would be created by modifying the types (e.g., C-H, C-N, and C-Cl) and relative ratios of each vibrational modes. 26 NIR emitting codes could be applied for military purpose such as the identification of friend or foe and concealed markings.…”

Plasma Treatment of Different Biodegradable Polymers: A Method to Enhance Wettability and Adhesion Properties for Use in Industrial Packaging

“…The untreated PBS spectrum is characterized by the general functional groups of its polymer chain structure [37]: the peak at about 2920 cm −1 corresponds to C-H stretching mode of methylene groups; the prominent peak at about 1720 cm −1 is due to the C=O vibration of carboxyl groups, the C-O ester group vibration peak at about 1332 cm −1 and the prominent C=O carbonyl group vibration peak at about 1160 cm −1 . Regarding the untreated PBAT spectrum, peaks between 2800 and 2900 cm −1 represent the asymmetric and symmetric stretching vibration of the successive methylene groups present in the adipate unit and 1,4 butanediol unit [38,39]. The peak at about 1710 cm −1 is due to the C=O stretching mode of carbonyl functional groups [40], while C-O stretching vibrations are highlighted by a 1260 cm −1 peak.…”