Synthesis of a phosphorus- and nitrogen-containing flame retardant and evaluation of its application in waterborne polyurethane

2018 ◽  
Vol 135 (16) ◽  
pp. 46093 ◽  
Author(s):  
Shuang Wang ◽  
Zongliang Du ◽  
Xu Cheng ◽  
Yuansen Liu ◽  
Haibo Wang
Keyword(s):  
Flame Retardant ◽  
Waterborne Polyurethane

scholarly journals The optical shielding performances and mechanisms of green flame-retardant two-component matte films under various application conditions

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12696-12702
Author(s):  
Xuan Yin ◽  
Yunjun Luo
Keyword(s):  
Flame Retardant ◽  
Waterborne Polyurethane ◽  
Two Component

Herein, we meticulously investigated the optical shielding performances and mechanisms of green flame-retardant two-component waterborne polyurethane matte films based on a previous study.

Flame-retardant and crosslinking modification of MDI-based waterborne polyurethane

2016 ◽  
Vol 74 (6) ◽  
pp. 2099-2116 ◽  
Author(s):  
Lu Wu ◽  
Jingfeng Guo ◽  
Shu Zhao
Keyword(s):  
Flame Retardant ◽  
Waterborne Polyurethane

scholarly journals Effect of Sepiolite-Loaded Fe2O3 on Flame Retardancy of Waterborne Polyurethane

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Tong Xu ◽  
Di Qian ◽  
Yelei Hu ◽  
Yuanzhao Zhu ◽  
Yi Zhong ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Waterborne Polyurethane ◽  
Layer By Layer ◽  
Solution Deposition ◽  
Good Thermal Stability ◽  
Layer Method ◽  
Combustion Tests ◽  
Microscopic Morphology ◽  
Coated Cotton ◽  
Thermal Stability Of

In this study, a kind of inorganic composite flame retardant (Sep@Fe2O3) was prepared by combining solution deposition and calcination methods using sepiolite microfiber material as carrier. This inorganic compound flame retardant was combined with waterborne polyurethane (WPU) through layer-by-layer method to prepare WPU composites. The SEM and EDS, TEM, and XRD were used to characterize the microscopic morphology and crystal structure of WPU composites. Thermogravimetric analysis tests confirmed the good thermal stability of WPU/Sep@Fe2O3 composites; at the temperature of 600°C, the carbon residual percentage of WPU/Sep, WPU/Fe2O3, and WPU/Sep@Fe2O3 composites is 7.3%, 12.2%, and 13.4%, respectively, higher than that of WPU (1.4%). Vertical combustion tests proved better flame-retardant property of WPU/Sep@Fe2O3 composite-coated cotton than noncoated cotton. The microcalorimeter test proved that the PHRR of WPU/Sep@Fe2O3 composites decreased by 61% compared with that of WPU. In addition, after combining with Sep@Fe2O3, the breaking strength of WPU increased by 35%.

scholarly journals Synergistic Effects of Black Phosphorus/Boron Nitride Nanosheets on Enhancing the Flame-Retardant Properties of Waterborne Polyurethane and Its Flame-Retardant Mechanism

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1487 ◽  
Author(s):  
Sihao Yin ◽  
Xinlin Ren ◽  
Peichao Lian ◽  
Yuanzhi Zhu ◽  
Yi Mei
Keyword(s):  
Boron Nitride ◽  
Heat Release ◽  
Flame Retardant ◽  
Hexagonal Boron Nitride ◽  
Synergistic Effects ◽  
Waterborne Polyurethane ◽  
Black Phosphorus ◽  
Limiting Oxygen Index ◽  
Polyurethane Composite ◽  
Black Phosphorene

We applied black phosphorene (BP) and hexagonal boron nitride (BN) nanosheets as flame retardants to waterborne polyurethane to fabricate a novel black phosphorus/boron nitride/waterborne polyurethane composite material. The results demonstrated that the limiting oxygen index of the flame-retarded waterborne polyurethane composite increased from 21.7% for pure waterborne polyurethane to 33.8%. The peak heat release rate and total heat release of the waterborne polyurethane composite were significantly reduced by 50.94% and 23.92%, respectively, at a flame-retardant content of only 0.4 wt%. The superior refractory performances of waterborne polyurethane composite are attributed to the synergistic effect of BP and BN in the gas phase and condensed phase. This study shows that black phosphorus-based nanocomposites have great potential to improve the fire resistance of polymers.

The Study on Application of N-P Intumescent Flame Retardant Agent in Waterborne Polyurethane

2012 ◽  
Vol 581-582 ◽  
pp. 3-6
Author(s):  
Xue Chuan Wang ◽  
Li Wang
Keyword(s):  
Phosphoric Acid ◽  
Flame Retardant ◽  
Hyperbranched Polymer ◽  
First Generation ◽  
Waterborne Polyurethane ◽  
Phosphorus Pentoxide ◽  
Intumescent Flame Retardant ◽  
Flame Retardant Property ◽  
Combustion Performance ◽  
The Stability

Phosphorylation for the first generation product of hyperbranched polymer with terminal hydroxyl (HPAE1) was carried out to synthesize a type of P-N intumescent flame retardant （HPAE1-P）, with phosphorus pentoxide and phosphoric acid as phosphorylating agent. HPAE1-P was used in waterborne polyurethane MWU-T-502B-30, and then they were tested the properties of the emulsion, such as the stability, LOI, smoke density and vertical combustion performance. The results showed that the compatibility of this flame retardant agent and waterborne polyurethane MWU-T-502B-30 was very good, and this flame retardant agent could effectively improve the polyurethane flame retardant property.

scholarly journals Fabrication and Application of Black Phosphorene/Graphene Composite Material as a Flame Retardant

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 193 ◽  
Author(s):  
Xinlin Ren ◽  
Yi Mei ◽  
Peichao Lian ◽  
Delong Xie ◽  
Weibin Deng ◽  
...  
Keyword(s):  
Composite Material ◽  
Flame Retardant ◽  
Mechanical Performance ◽  
Waterborne Polyurethane ◽  
Mechanical Analysis ◽  
Structure Characterization ◽  
Mechanical Degradation ◽  
Black Phosphorene ◽  
Flame Retardant Properties ◽  
Thermo Stability

A simple and novel route is developed for fabricating BP-based composite materials to improve the thermo-stability, flame retardant performances, and mechanical performances of polymers. Black phosphorene (BP) has outstanding flame retardant properties, however, it causes the mechanical degradation of waterborne polyurethane (WPU). In order to solve this problem, the graphene is introduced to fabricate the black phosphorene/graphene (BP/G) composite material by high-pressure nano-homogenizer machine (HNHM). The structure, thermo-stability, flame retardant properties, and mechanical performance of composites are analyzed by a series of tests. The structure characterization results show that the BP/G composite material can distribute uniformly into the WPU. The addition of BP/G significantly improves the residues of WPU in both of TG analysis (5.64%) and cone calorimeter (CC) test (12.50%), which indicate that the BP/G can effectively restrict the degradation of WPU under high temperature. The CC test indicates that BP/G/WPU has a lower peak release rate (PHRR) and total heat release (THR), which decrease by 48.18% and 38.63%, respectively, than that of the pure WPU, respectively. The mechanical analysis presents that the Young’s modulus of the BP/G/WPU has an increase of seven times more than that of the BP/WPU, which indicates that the introduce of graphene can effectively improve the mechanical properties of BP/WPU.

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