1. A Study on the Synthesis and Properties of Polyurethane/Clay Nanocomposites.
- Author
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Song, Lei, Hu, Yuan, Li, Baoguang, Wang, Shaofeng, Fan, Weicheng, and Chen, Zuyao
- Subjects
- *
POLYURETHANES , *MONTMORILLONITE , *POLYETHERS , *DIETHYLENE glycol , *X-ray diffraction - Abstract
Polyurethane/organophilic montmorillonite (PU/OMT) nanocomposites based on polyether, organophilic montmorillonite, phenylmethane diisocyante, diglycol, and glycerine were synthesized and characterized by x-ray diffraction (XRD). Delaminated or intercalated structures in polyurethane/OMT nanocomposites with different OMT content were found. The mechanical, thermal, and inflammability properties of PU/OMT nanocomposites were investigated through tensile, thermogravimetry, differential scanning calorimetry, and cone calorimetry experiments. It is shown that polyurethane/OMT nanocomposites have enhanced tensile strength, improved thermal stability, and flame retardant properties relative to bulk polyurethane. The tensile strength of PU/OMT with 4.7 wt% OMT content was double compared to that of bulk PU. The thermal and flame retardant properties of PU/OMT were enhanced compared to that of bulk PU. The thermal and flame retardant properties of PU/OMT increased with increasing OMT content. [ABSTRACT FROM AUTHOR]
- Published
- 2003
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