Synthesis and application in polypropylene of a novel of phosphorus-containing intumescent flame retardant |
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Authors: | Zuo Jian-Dong Liu Shu-Mei Sheng Qi |
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Affiliation: | Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518060 Shenzhen, China. |
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Abstract: | A novel phosphorus-containing triazine oligomer poly(2-morpholinyl-4-penta-erythritol phosphate-1,3,5-triazine) (PMPT) was synthesized as a kind of tri-component intumescent flame retardant (IFR). The chemical structure of PMPT was characterized by FTIR, 1H-NMR and 31P-NMR, and the mechanical and flammability properties of FR-PP were measured. The FTIR results showed that the expected chemical reactions had happened at each step. The 1H-NMR and 31P-NMR spectra also agreed with the chemical structure of PMPT. The slight effect of PMPT on the mechanical properties of FR-PP suggested that PMPT and PP are compatible. The high limited oxygen index (LOI) values of FR-PP revealed that PMPT was an efficient IFR and there was the synergistic effect between PMPT and ammonium polyphosphate/ pentaerythritol (APP/PER). |
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