Journal
POLYMER DEGRADATION AND STABILITY
Volume 97, Issue 12, Pages 2487-2491Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2012.07.016
Keywords
Cotton Flame retardance; Formaldehyde-free; Halogen-free flame retardant
Categories
Funding
- National Science Foundation of China [50933005, 51121001]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1026]
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A novel flame retardant, poly (1,2-dicarboxyl ethylene spirocyclic pentaerythritol bisphosphonate) (PEPBP) has been synthesized by the reaction of spirocyclic pentaerythritol bisphosphorate disphosphoryl chloride (SPDPC) with tartaric acid (TA). PEPBP was used as the flame-retardant finishing agent for cotton fabrics. The flame retardancy of the samples was characterized by limiting oxygen index (LOI) and the vertical burning test. The cotton fabric sample with 21.2 wt% of PEPBP has a LOI value of 33.8, which is 14.4 higher than that of the untreated cotton sample. The treated cotton fabrics have shorter after-glow time, shorter char length and no after-flame during the vertical burning test. The thermal decomposition behaviors of the fabrics, the chemical structures and morphologies of the residues of the fabrics were investigated using thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) and scanning electron microscopy (SEM), respectively, and a possible flame retardant mechanism was discussed. (c) 2012 Elsevier Ltd. All rights reserved.
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