Layered Double Hydroxide Derivatives as Flame Retardants for Flexible PVC

2019 ◽  
Vol 384 (1) ◽  
pp. 1800148 ◽  
Author(s):  
Johan Labuschagné ◽  
Dan Molefe ◽  
Walter W Focke ◽  
Osei Ofosu
Keyword(s):  
Layered Double Hydroxide ◽  
Flame Retardants ◽  
Double Hydroxide

scholarly journals Effects of Aluminum Hydroxide and Layered Double Hydroxide on Asphalt Fire Resistance

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1939 ◽  
Author(s):  
Menglin Li ◽  
Ling Pang ◽  
Meizhu Chen ◽  
Jun Xie ◽  
Quantao Liu
Keyword(s):  
Carbon Monoxide ◽  
Layered Double Hydroxide ◽  
Aluminum Hydroxide ◽  
Fire Resistance ◽  
Flame Retardants ◽  
Synergistic Effects ◽  
Combined System ◽  
Limiting Oxygen Index ◽  
Double Hydroxide ◽  
The Impact

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.

scholarly journals Functionalized layered double hydroxide-based epoxy nanocomposites with improved flame retardancy and mechanical properties

2015 ◽  
Vol 3 (13) ◽  
pp. 6819-6826 ◽  
Author(s):  
Ehsan Naderi Kalali ◽  
Xin Wang ◽  
De-Yi Wang
Keyword(s):  
Mechanical Properties ◽  
Layered Double Hydroxide ◽  
Flame Retardancy ◽  
Layered Double Hydroxides ◽  
Epoxy Resins ◽  
Flame Retardants ◽  
Fire Retardants ◽  
Epoxy Nanocomposites ◽  
Double Hydroxide ◽  
Double Hydroxides

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.

Removal of Methyl Orange from Aqueous Solutions by Using Zn-Al Layered Double Hydroxide as Photocatalyst

2015 ◽  
Vol 1 (2) ◽  
pp. 36-41
Author(s):  
Laura Cocheci ◽  
◽  
Ancuta-Corina Marcu ◽  
Paul Barvinschi ◽  
Aniela Pop
Keyword(s):  
Methyl Orange ◽  
Aqueous Solutions ◽  
Layered Double Hydroxide ◽  
Double Hydroxide

Preparation of BIT-layered Double Hydroxide and the Study of Antifungal Properties

2013 ◽  
Vol 28 (9) ◽  
pp. 1025-1032 ◽  
Author(s):  
Yi-Xuan ZHANG ◽  
Song-Mei LI ◽  
Jian-Hua LIU ◽  
Mei YU
Keyword(s):  
Layered Double Hydroxide ◽  
Antifungal Properties ◽  
Double Hydroxide
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