scholarly journals Organic Aluminum Hypophosphite/Graphitic Carbon Nitride Hybrids as Halogen-Free Flame Retardants for Polyamide 6

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2323
Author(s):  
Chengxin Guo ◽  
Yongshuai Zhao ◽  
Guichen Ji ◽  
Chaosheng Wang ◽  
Zhihan Peng
Keyword(s):  
Gas Phase ◽  
Flame Retardants ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Polyamide 6 ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Aluminum Hypophosphite ◽  
Fire Properties ◽  
Halogen Free

The novel organic aluminum hypophosphite (ALCPA) and its hybrid (CNALCPA) with graphitic carbon nitride (g-C3N4) were successfully synthesized and applied as halogen-free flame retardants in polyamide 6 (PA6). Their structures, morphology, thermal stability, and fire properties were characterized. Results showed that both ALCPA and CNALCPA had good flame retardancy. PA6/CNALCPA composites achieved a high limited-oxygen-index (LOI) value of 38.3% and a V-0 rating for UL94 at 20 wt % loading, while PA6/ALCPA composites could reach a V-1 rating for UL94. The flame-retardant mechanism was also studied. On the one hand, the incorporation of g-C3N4 produced more gas-phase products, which indicated a gas-phase mechanism. On the other hand, g-C3N4 could catalyze the thermal degradation of ALCPA and PA6 to form a compact char layer that was evidence for a solid-phase mechanism. The tensile test of the PA6 composites also displayed good mechanical properties.

Activation of graphitic carbon nitride (g-C3N4) by alkaline hydrothermal treatment for photocatalytic NO oxidation in gas phase

2013 ◽  
Vol 1 (21) ◽  
pp. 6489 ◽  
Author(s):  
Taizo Sano ◽  
Sakiko Tsutsui ◽  
Kazuhide Koike ◽  
Tsutomu Hirakawa ◽  
Yoshiyuki Teramoto ◽  
...  
Keyword(s):  
Gas Phase ◽  
Hydrothermal Treatment ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
No Oxidation ◽  
Graphitic Carbon Nitride

A hybrid transition metal nanocrystal-embedded graphitic carbon nitride nanosheet system as a superior oxygen electrocatalyst for rechargeable Zn–air batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (38) ◽  
pp. 19644-19654
Author(s):  
Wen-Jun Niu ◽  
Jin-Zhong He ◽  
Ya-Ping Wang ◽  
Qiao-Qiao Sun ◽  
Wen-Wu Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Highly Efficient ◽  
Pyrolysis Method ◽  
Carbon Nitride Nanosheets

A general solid-phase pyrolysis method was developed to synthesize the hybrid transition metals nanocrystals-embedded graphitic carbon nitride nanosheets (M-CNNs) as highly efficient oxygen electrocatalyst for rechargeable Zn–air batteries (ZABs).

Graphitic carbon nitride nanosheets with tunable optical properties and their superoxide dismutase mimetic ability

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92839-92844 ◽  
Author(s):  
Xiangling Ren ◽  
Xianwei Meng ◽  
Jun Ren ◽  
Fangqiong Tang
Keyword(s):  
Superoxide Dismutase ◽  
Optical Properties ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Phase Method ◽  
Solid Phase Method ◽  
Tunable Optical Properties ◽  
Carbon Nitride Nanosheets

Graphitic carbon nitride nanosheets with tunable optical properties are synthesized through a solid-phase method and possess intrinsic superoxide dismutase-like activity.

scholarly journals Microwave growth and tunable photoluminescence of nitrogen-doped graphene and carbon nitride quantum dots

2019 ◽  
Vol 7 (18) ◽  
pp. 5468-5476 ◽  
Author(s):  
Siyong Gu ◽  
Chien-Te Hsieh ◽  
Yasser Ashraf Gandomi ◽  
Jeng-Kuei Chang ◽  
Ju Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Citric Acid ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Tunable photoluminescent nitrogen-doped graphene and graphitic carbon nitride (g-C3N4) quantum dots are synthesized via a facile solid-phase microwave-assisted (SPMA) technique utilizing the pyrolysis of citric acid and urea precursors.

scholarly journals Synergistic effect of flame retardants and graphitic carbon nitride on flame retardancy of polylactide composites

2020 ◽  
Vol 31 (7) ◽  
pp. 1661-1670 ◽  
Author(s):  
Xianwu Cao ◽  
Xiaoning Chi ◽  
Xueqin Deng ◽  
Tao Liu ◽  
Bin Yu ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Flame Retardancy ◽  
Flame Retardants ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride
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