Synthesis, properties and application of reactive nitrogen-phosphorus flame retardant

被引：0

作者：

Hu, Wentian ^{[1
]}

Yang, Rong ^{[1
]}

Xu, Liang ^{[1
]}

Song, Yan ^{[1
]}

Li, Jinchun ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Changzhou University, Changzhou, 213000, Jiangsu

来源：

Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Flame retardant; Rigid polyurethane foam; Synthesis; Thermal degradation;

D O I：

10.11949/j.issn.0438-1157.20141850

中图分类号：

学科分类号：

摘要：

A novel reactive flame retardant named hexakis (4-diethyl phosphate hydroxymethyl phenoxy) cyclotriphosphazene (HPHPCP) was synthesized from hexachlorocyclotriphosphazene (HCCP), p-hydroxy benzaldehyde and diethyl phosphite. Chemical structures of intermediate and HPHPCP were characterized by Fourier-transform infrared spectroscopy (FTIR), proton and 31P nuclear magnetic resonance (NMR). Thermal stability of the HPHPCP was determined via thermogravimetric analysis (TGA). Halogen-free flame-retardant rigid polyurethane foams (RPU) were prepared by using HPHPCP as a reactive flame retardant. The effect of HPHPCP content on the thermal and flame-retardant properties of RPU was investigated with TGA, and limiting oxygen index (LOI). The temperatures of 5%(mass) loss (T5%) of HPHPCP in nitrogen and air were 162.7℃ and 153.0℃, and the residues at 800℃ of HPHPCP in nitrogen and air were 42.1% and 12.0%(mass), respectively. HPHPCP could enhance thermal stability of RPU. The T5% of RPU-20%HPHPCP was 193.9℃, 20℃ higher than pure RPU. Moreover, limiting oxygen index (LOI) of RPU increased with increasing HPHPCP, and LOI of RPU-30%HPHPCP was 27%. © All rights reserved.

引用

页码：1976 / 1982

页数：6

共 22 条

[1]

Ju Z.Y., Ye Y., Zou R.Y., Liao X.C., Zhao Y.F., Synthesis and thermal stability of a novel phosphorus-nitrogen containing intumescent flame retardant, Chin. Chem. Lett., 19, pp. 277-278, (2008)

[2]

Chen Y.H., Wang Q., Reaction of melamine phosphate with pentaerythritol and its products for flame retardation of polypropylene, Polym. Adv. Technol., 18, pp. 587-600, (2007)

[3]

Zhou S., Wang Z.Z., Gui Z., Hu Y., A study of the novel intumescent flame-retarded PP/EPDM copolymer blends, J. Appl. Polym. Sci., 110, 6, pp. 3804-3811, (2008)

[4]

Xiang H., Sun C., Jiang D., Zhang Q., Dong C., Liu L., A novel halogen-free intumescent flame retardant containing phosphorus and nitrogen and its application in polypropylene systems, J. Vinyl. Addit. Technol., 16, 4, pp. 261-271, (2010)

[5]

Shao Z., Deng C., Tan Y., Chen M., Chen L., Wang Y., An efficient mono-component polymeric intumescent flame retardant for polypropylene: preparation and application, ACS Appl. Mater. Interfaces, 6, pp. 7363-7370, (2014)

[6]

Shao Z., Deng C., Tan Y., Chen M., Chen L., Wang Y., Flame retardation of polypropylene via a novel intumescent ﬂame retardant: ethylenediamine-modiﬁed ammonium polyphosphate, Polym. Degrad. Stab., 106, pp. 88-96, (2014)

[7]

Huang G., Gao J., Li Y., Han L., Wang X., Functionalizing nano-montmorillonites by modified with intumescent flame retardant: preparation and application in polyurethane, Polym. Degrad. Stab., 95, pp. 245-253, (2010)

[8]

Bourbigot S., Le B.M., Dabrowski F., Gilman J.W., Kashiwagi T., PA-6 clay nanocomposite hybrid as char forming agent in intumescent formulations, Fire Mater., 24, 4, pp. 201-208, (2000)

[9]

Morgan A.B., Gilman J.W., An overview of flame retardancy of polymeric materials: application, technology and future directions, Fire Mater., 37, 4, pp. 259-279, (2013)

[10]

Li F., Luo Y., Li X., Li J., Properties of waterborne polyurethane with phosphorus-nitrogen synergy effects, CIESC Journal, 63, 2, pp. 653-657, (2012)

← 1 2 3 →