Synthesis and properties of waterborne polyurethane/attapulgite nanocomposites

• Published in: Composites science and technology Vol. 71; no. 10; pp. 1280 - 1285
• Main Authors: Peng, Lanqin, Zhou, Lincheng, Li, Yanfeng, Pan, Fei, Zhang, Sidi
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 07.07.2011; Elsevier
• Subjects: A. Nanoclays; A. Nanocomposites; A. Particle-reinforced composites; Applied sciences; Composites; Crosslinking; Differential scanning calorimetry; Diffraction; Elongation; Exact sciences and technology; Forms of application and semi-finished materials; Nanocomposites; Polymer industry, paints, wood; Polymerization; Polyurethane resins; Scanning electron microscopy; Technology of polymers; A. Nanoclays; A. Particle-reinforced composites; A. Nanocomposites; Clay; Organic clay; Mechanical properties; Attapulgite; Dispersion reinforced material; Tensile property; Experimental study; Polyaddition; Composite material; Thermal stability; Surface treatment; Thermal properties; Cyclic ether polymer; Organic diisocyanate; Morphology; Propylene oxide polymer; Preparation; Nanocomposite; Aqueous dispersion; Etherurethane polymer
• ISSN: 0266-3538; 1879-1050
• DOI: 10.1016/j.compscitech.2011.04.012

The novel nanocomposites derived from waterborne polyurethane (WPU)/Attapulgite (AT) nanocomposites have been successfully synthesized by in situ polymerization progress. AT functionalized by chemical modification were incorporated as a crosslinker in prepolymer. The chemical structures, morphology, thermal behavior, and mechanical properties of the WPU/AT nanocomposites were investigated by Fourier transform infrared spectroscopy (FTIR), thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), X-ray diffraction (XRD) and tensile testing respectively. The experimental results indicated that the organically modified attapulgites were homogeneously dispersed in the WPU and resulted in an improvement of thermal stability, tensile strength and elongation at break of WPU/AT nanocomposites.