Preparation and performances of cationic waterborne polyurethane coating co-modified with acrylic and amino acid

Kuang, Guankun; Liu, Yan; Qin, Ying; Lu, Tianhao; Xin, Binjie

doi:10.1007/s11998-023-00857-5

Cited by 3 publications

(2 citation statements)

References 39 publications

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“…The peak at 1102 cm –1 corresponds to the stretching vibration peak of −C–O–C–. In addition, there was no distinct characteristic peak at 2270 cm –1 , indicating that no –NCO remained and the reaction stage was fully completed; HEMA underwent a cross-linking reaction with PETA because no peak belonging to CC was observed at 1600–1700 cm –1 …”

Section: Resultsmentioning

confidence: 99%

“…In addition, there was no distinct characteristic peak at 2270 cm −1 , indicating that no −NCO remained and the reaction stage was fully completed; HEMA underwent a cross-linking reaction with PETA because no peak belonging to C�C was observed at 1600−1700 cm −1 . 45 3.3. SEM Examination of the Cross-Section of PCMWPU Films.…”

Section: Chemical Structure Analysis Of Pcmwpu Filmsmentioning

confidence: 99%

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Preparation and Properties of Acrylic Acid-Modified Multicross-Linked Two-Component Waterborne Phase-Change Polyurethane

Lu,

Qin,

Liu

et al. 2024

ACS Appl. Polym. Mater.

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Phase change materials (PCMs) are broadly adopted in buildings and other applications because of their excellent energy storage effect. However, aqueous phase change materials are less reported. In this article, a waterborne polyurethane with phase change functionality (WPU-A) was prepared and modified with trimethylolpropane (TMP) and hydroxyethyl methacrylate (HEMA); and then allowed to cross-link with a waterborne polyurethane (WPU-B) with PTMG as the soft segment to produce a multicross-linked, two-component phasechange waterborne polyurethane (PCMWPU). It is discussed that the phase change properties, hydrophobicity, and tensile strength of PCMWPU films were improved with the addition of WPU-A. The data show that the highest enthalpy of PCMWPU films can reach 90.3 J/g, the static water contact angle can reach 108.3°, and the highest tensile strength is 27.4 MPa. In addition, PCMWPU film has shape stability at higher temperatures (100 °C), no liquid leakage, good thermal stability, and shows some reversible light transmission phenomenon, which has a wide range of application prospects.

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Section: Resultsmentioning

confidence: 99%

Section: Chemical Structure Analysis Of Pcmwpu Filmsmentioning

confidence: 99%