Journal
FIBERS AND POLYMERS
Volume 19, Issue 5, Pages 1057-1063Publisher
KOREAN FIBER SOC
DOI: 10.1007/s12221-018-7493-8
Keywords
Plasticizer; Flame retardancy; Castor oil acid methyl ester; Phosphorus-containing; Polyvinyl chloride
Categories
Funding
- National key Research Program of China [SQ2017YFGX010015]
- National Natural Science Foundation of China [21576172]
- National key Research and Development Program of China [2017YFB0308600]
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A novel phosphorus-containing flame retardant plasticizer (PFRP) derived from castor oil acid methyl ester (COME) was synthesized to substitute dioctyl phthalate (DOP) for plasticizing polyvinyl chloride (PVC) products. The chemical structures of PFRP were confirmed by fourier transform infrared spectroscopy (FTIR) and H-1 nuclear magnetic resonance (H-1 NMR). Meanwhile, the plasticizing effect, flammability and thermal stability of plasticized PVC films were investigated by dynamic mechanical analyzer (DMA), limiting oxygen index (LOI) test, scanning electron microscope (SEM) and thermogravimetric analysis (TGA). As the PFRP content increasing from 0 wt% to 50 wt% amount of plasticizers, the plasticizing efficiency and the mechanical properties showed a slightly decreasing tendency compared with that of DOP, while the LOI value of plasticized PVC increased remarkably from 21.5% to 25.2%, showing a combined plasticizing efficiency and flame retardancy. SEM and TGA analysis indicated that PFRP had little effect on thermal stability but was effective to promote the formation of compact carbon residue.
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