Influence of thermal behavior of phosphorus compounds on their flame retardant effect in PU rigid foam

2015 ◽  
Vol 40 (6) ◽  
pp. 826-835 ◽  
Author(s):  
Wei Xu ◽  
Guojian Wang
Keyword(s):  
Thermal Behavior ◽  
Flame Retardant ◽  
Phosphorus Compounds ◽  
Rigid Foam

Fire behavior of flame-retardant polyurethane semi-rigid foam in presence of nickel (II) oxide and graphene nanoplatelets additives

2021 ◽  
Vol 28 (3) ◽  
Author(s):  
Halima Saadiya Ababsa ◽  
Zitouni Safidine ◽  
Ahmed Mekki ◽  
Yves Grohens ◽  
Amina Ouadah ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Fire Behavior ◽  
Graphene Nanoplatelets ◽  
Rigid Foam

The Study of Melamine Modified by Imidazolium Based Ionic Liquid [BMIM]PF6 on the Flame Retardancy of Rigid Polyurethane Foam

2014 ◽  
Vol 1030-1032 ◽  
pp. 241-245 ◽  
Author(s):  
Yan Wei Li
Keyword(s):  
Ionic Liquid ◽  
Flame Retardant ◽  
Polyurethane Foam ◽  
Fire Retardant ◽  
Rigid Polyurethane Foam ◽  
Flame Resistance ◽  
Initial Decomposition Temperature ◽  
Noticeable Effect ◽  
Rigid Foam ◽  
Flame Retardant Properties

In this paper, the effect of C3H6N6modified by imidazolium based Ionic Liquid 1-butyl-methylimidazolium hexafluorophosphate ([BMIM]PF6) on polyurethane rigid foam flame retardant properties was conducted.The results show that the flame retardant properties of C3H6N6 modified with Ionic Liquid significantly increased and the LOI increased form 22.3 to 24.5. In the modification process, the ionic liquid mass have a very noticeable effect to the flame retardant property and when [BMIM]PF6 and C3H6N6 in quality was 4:6, Fire-retardant effect was best.Compared with the prior to the modification, C3H6N6 modified can increase effective Flame resistance of materials, horizontal burning speed from 67.6mm/min down to 33.4mm/min.Thermal degradation data show that C3H6N6 modified could improve initial decomposition temperature and reminder yield of rigid polyurethane foam,and then heat release reduced, the decomposition controlled,thermal stability increased.

scholarly journals Preparation and properties of flame-retardant epoxy resins containing reactive phosphorus flame retardant

2020 ◽  
Vol 15 ◽  
pp. 155892502090132
Author(s):  
Sang-Hoon Lee ◽  
Seung-Won Oh ◽  
Young-Hee Lee ◽  
Il-Jin Kim ◽  
Dong-Jin Lee ◽  
...  
Keyword(s):  
Impact Strength ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Flame Retardancy ◽  
Epoxy Resins ◽  
Phosphorus Content ◽  
Phosphorus Compound ◽  
Phosphorus Compounds ◽  
Limiting Oxygen Index ◽  
The Impact

To prepare flame-retardant epoxy resin, phosphorus compound containing di-hydroxyl group (10-(2,5-dihydroxyphenyl)-9,10-dihydro-9-oxa-10-phospha phenanthrene-10-oxide, DOPO-HQ) was reacted with uncured epoxy resin (diglycidyl ether of bisphenol A, YD-128) and then cured using a curing agent (dicyandiamide, DICY). This study focused on the effect of phosphorus compound/phosphorus content on physical properties and flame retardancy of cured epoxy resin. The thermal decomposition temperature of the cured epoxy resins (samples: P0, P1.5, P2.0, and P2.5, the number represents the wt% of phosphorus) increased with increasing the content of phosphorus compound/phosphorus (0/0, 19.8/1.5, 27.8/2.0, and 36.8/2.5 wt%) based on epoxy resin. The impact strength of the cured epoxy resin increased significantly with increasing phosphorus compound content. As the phosphorus compound/phosphorus content increased from 0/0 to 36.8/2.5 wt%, the glass transition temperature (the peak temperature of loss modulus curve) increased from 135.2°C to 142.0°C. In addition, as the content of phosphorous compound increased, the storage modulus remained almost constant up to higher temperature. The limiting oxygen index value of cured epoxy resin increased from 21.1% to 30.0% with increasing phosphorus compound/phosphorus content from 0/0 to 36.8/2.5 wt%. The UL 94 V test result showed that no rating for phosphorus compounds less than 19.8 wt% and V-1 for 27.8 wt%. However, when the phosphorus compound was 36.8 wt%, the V-0 level indicating complete flame retardancy was obtained. In conclusion, the incorporation of phosphorus compounds into the epoxy chain resulted in improved properties such as impact strength and heat resistance, as well as a significant increase in flame retardancy.

Flame retardant treatments for polyamide 66 textiles: Analysis the role of phosphorus compounds

2020 ◽  
Vol 182 ◽  
pp. 109376
Author(s):  
Chanchal Kumar Kundu ◽  
Chandra Sekhar Reddy Gangireddy ◽  
Lei Song ◽  
Yuan Hu
Keyword(s):  
Flame Retardant ◽  
Phosphorus Compounds ◽  
Polyamide 66

Synthesis and thermal behavior of a novel UV-curable transparent flame retardant film and phosphorus-nitrogen synergism of flame retardancy

2010 ◽  
Vol 22 (12) ◽  
pp. 2123-2129 ◽  
Author(s):  
Weiyi Xing ◽  
Lei Song ◽  
Ganxin Jie ◽  
Xiaoqi Lv ◽  
Xin Wang ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Uv Curable

Effect of pH on the Phosphorous Components in Tetra-Hydroxymethyl Phosphonium Chloride Solution

2012 ◽  
Vol 560-561 ◽  
pp. 237-241 ◽  
Author(s):  
Shuang Xi Shao ◽  
Lan Jiang ◽  
Ya Li ◽  
Kai Qi Shi
Keyword(s):  
Water Treatment ◽  
Flame Retardant ◽  
Chloride Solution ◽  
31P Nmr ◽  
Phosphorus Compounds ◽  
Industrial Water ◽  
Nuclear Magnetism ◽  
Phosphonium Chloride ◽  
Actual Application ◽  
Manufacture Industry

At present, tetra-hydroxymethyl phosphonium chloride (THPC) is widely used in flame retardant finishing, industrial water treatment and leather manufacture industry etc., and its decomposition which was caused by pH changing will influence on the actual application. So acid-alkali decomposition of THPC was studied by 31P Nuclear Magnetism Resomance (31P NMR), spectrophotometry and titration respectively. The results show that THPC solution is stable when pH9.0, all of the phosphorus compounds converts to TrHPO. Consequently, THPC content decreases when pH of the THPC solution rising, which could give a favorable guide in THPC application.

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