Composites of Layered Double Hydroxide Nanosheets, Hydroxy-Functionalized Carbon Nanotubes, and Hydroxyapatite Nanoparticles as Flame Retardants for Epoxy Resins

Author(s):  
Haijun Zhang ◽  
Yiru Di ◽  
Qi Yang ◽  
Xiaomeng Zhou
2015 ◽  
Vol 3 (13) ◽  
pp. 6819-6826 ◽  
Author(s):  
Ehsan Naderi Kalali ◽  
Xin Wang ◽  
De-Yi Wang

Aiming at developing highly efficient nano fire retardants and fire retarding epoxy resins, a series of functionalized layered double hydroxides (LDHs) based on a multi-modifier system have been developed. These functionalized LDHs were used as novel nano flame-retardants for bisphenol epoxy resins and compared with unmodified LDHs.


2016 ◽  
Vol 18 (43) ◽  
pp. 30068-30078 ◽  
Author(s):  
M. Li ◽  
F. Liu ◽  
X. B. Zhang ◽  
J. P. Cheng

A variety of carbon materials varying from 0D to 2D, i.e. 0D nanoparticles, 1D carbon nanotubes (CNTs) and 2D reduced graphene oxide (rGO) are selected to in situ combine with Ni–Mn layered double hydroxide (LDH) to prepare electrode materials for supercapacitors.


Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1939 ◽  
Author(s):  
Menglin Li ◽  
Ling Pang ◽  
Meizhu Chen ◽  
Jun Xie ◽  
Quantao Liu

When a fire occurs in a tunnel, the instantaneous high temperature and smoke cause great danger to people. Therefore, the asphalt pavement material in the tunnel must have sufficient fire resistance. In this study, the effects of aluminum hydroxide and layered double hydroxide on the fire resistance of styrene-butadiene-styrene (SBS) polymer-modified asphalt was investigated. The fire resistance of the asphalt was evaluated by using a limiting oxygen index (LOI). The impact of aluminum hydroxide (ATH), layered double hydroxide (LDHs), and mixed flame retardant (MFR) on LOI was studied. The synergistic fire resistance mechanism of ATH and LDHs in asphalt binder was analyzed by using an integrated thermal analyzer‒mass spectrometry combined system (TG-DSC-MS) and Fourier transform infrared spectrometer (FTIR). The experimental results indicated that the main active temperature range of these flame retardants was 221–483 °C. The main components of smoke were methane, hydroxyl, water, carbon monoxide, aldehyde, carbon dioxide, etc. The addition of flame retardants could inhibit the production of methane, carbon monoxide, and aldehyde. Moreover, due to the good synergistic effects of ATH and LDHs, 20 wt % MFR had the best fire resistance.


2018 ◽  
Vol 6 (47) ◽  
pp. 24050-24057 ◽  
Author(s):  
Chao Xu ◽  
Xueying Kong ◽  
Shengyang Zhou ◽  
Bing Zheng ◽  
Fengwei Huo ◽  
...  

Novel nanosheets prepared by interweaving ZIF-67-templated LDH nanocrystals with nanocellulose and CNTs are applied in flexible and foldable energy storage devices.


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