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

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.

2021 ◽  
Vol 12 (38) ◽  
pp. 5400-5411
Author(s):  
Xuan Yin ◽  
Haosheng Pang ◽  
Yunjun Luo ◽  
Bing Zhang

Green functional two-component flame-retardant waterborne polyurethane (2K-FWPU) coatings possess outstanding green traits, such as providing eco-friendly protection, having low toxicity, and generating no pollution.


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

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Tong Xu ◽  
Di Qian ◽  
Yelei Hu ◽  
Yuanzhao Zhu ◽  
Yi Zhong ◽  
...  

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%.


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

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1487 ◽  
Author(s):  
Sihao Yin ◽  
Xinlin Ren ◽  
Peichao Lian ◽  
Yuanzhi Zhu ◽  
Yi Mei

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.


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