Influence of anionic surface modifiers on the thermal stability and mechanical properties of layered double hydroxide/polypropylene nanocomposites

2015 ◽  
Vol 3 (45) ◽  
pp. 22730-22738 ◽  
Author(s):  
Jae-Hun Yang ◽  
Wei Zhang ◽  
Hyunju Ryu ◽  
Ji-Hee Lee ◽  
Dae-Hwan Park ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Layered Double Hydroxide ◽  
Organic Modifier ◽  
Surface Modifiers ◽  
Polypropylene Nanocomposites ◽  
Loading Amount ◽  
Double Hydroxide ◽  
Thermal Stability Of ◽  
Anionic Surface

The thermal stability of PP was significantly improved after the formation of PP nanocomposites with organo-LDH, which was affected by the type of organic modifier in organo-LDH and the loading amount of organo-LDH.

Fire-safe and environmentally friendly nanocomposites based on layered double hydroxides and ethylene propylene diene elastomer

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26425-26436 ◽  
Author(s):  
Debdipta Basu ◽  
Amit Das ◽  
De-Yi Wang ◽  
Jinu Jacob George ◽  
Klaus Werner Stöckelhuber ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardant ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Thermal Stability Of

The capability of layered double hydroxide has been explored as a potential flame retardant filler and the effect of the mechanical properties, dynamic mechanical properties, and thermal stability of the composites was also studied.

scholarly journals Synthesis and Characterization of Layered-Double Hydroxide 3-(4-Hydroxyphenyl) Propionate Nanocomposite

Nano Hybrids ◽  
2014 ◽  
Vol 7 ◽  
pp. 53-67 ◽  
Author(s):  
Ahmad Siti Nurasikin ◽  
Hashim Norhayati ◽  
Nur Hidayah Yusri ◽  
Illyas Md Isa ◽  
Azlan Kamari ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Layered Double Hydroxide ◽  
Ftir Spectra ◽  
Basal Spacing ◽  
Exchange Method ◽  
X Ray ◽  
Ion Exchange Method ◽  
Double Hydroxide ◽  
Thermal Stability Of

A new layered-double hydroxide-3-(4-hydroxyphenyl) propionate (LDH-HPP) has been synthesized by intercalation of 3-(4-hydroxyphenyl) propionic acid (HPP) into Zn-Al-layered double hydroxide (LDH) by ion-exchange method. PXRD, FTIR, TGA/DTG, compositional studies and FESEM were used to characterize the synthesized nanocomposite. The intercalation of HPP into the interlayer gallery space of LDH was characterized by x-ray diffractogram showed expanded basal spacing of the value of 17.1 Å. The FTIR spectra of LDH-HPP nanocomposite synthesis by 0.025M HPP resembled a mixture of both FTIR spectra of HPP and LDH. Thermal analysis of LDH-HPP nanocomposite shows a better thermal stability as compared to the pure HPP, which proved that the intercalation of HPP into LDH interlayer enhanced the thermal stability of the HPP.

Influence of the Type of Alkylamine Organic Modifiers on Thermal Mechanical Behavior and other Related Properties of Natural Rubber/Clay Nanocomposites

2013 ◽  
Vol 844 ◽  
pp. 217-220 ◽  
Author(s):  
Uraiwan Sookyung ◽  
Woothichai Thaijaroen ◽  
Norbert Vennemann ◽  
Charoen Nakason
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Stress Relaxation ◽  
Natural Rubber ◽  
The Other ◽  
Clay Nanocomposites ◽  
Organic Modifier ◽  
Organic Modifiers ◽  
Different Types ◽  
Thermal Stability Of

Sodium-montmorillonite (Na-MMT) nanoclay was modified with different types of alkylamine organic modifier including primary and quaternary alkylamines. Influence types of alkylamine on properties of natural rubber/clay nanocomposites was investigated. It was found that organoclays caused improvement of mechanical properties of natural rubber, and accelerated vulcanization reaction with higher degree of crosslinking. In addition, organoclay modified with quaternary alkylamine showed significance cure reversion phenomenon which caused reduction of thermal stability. On the other hand, primary alkylamine modified nanoclay caused improvement of thermal stability of natural rubber. Moreover, stress relaxation was observed at the melting temperature of the modifying agent.

Synthesis of CoAl-layered double hydroxide/graphene oxide nanohybrid and its reinforcing effect in phenolic foams

2017 ◽  
Vol 30 (6) ◽  
pp. 688-698 ◽  
Author(s):  
Zhengzhou Wang ◽  
Xiaoyan Li
Keyword(s):  
Thermal Stability ◽  
Graphene Oxide ◽  
Layered Double Hydroxide ◽  
Photoelectron Spectroscopy ◽  
Limiting Oxygen Index ◽  
X Ray ◽  
Cone Calorimeter Test ◽  
Compressive And Flexural Strengths ◽  
Double Hydroxide ◽  
Thermal Stability Of

A graphene oxide (GO) immobilized with layered double hydroxide (CoAl-LDH/GO) nanohybrid was prepared via a hydrothermal method and characterized by transmission electron microscopy, field emission scan electronic microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and thermogravimetric analysis (TGA). The TGA results show that the immobilization of CoAl-LDH nanoparticles on GO surface greatly promotes the thermal stability of GO. More importantly, the incorporation of the CoAl-LDH/GO nanohybrid into PF foams leads to not only a great improvement in their mechanical strengths but also a reduction in their brittleness and friability. Specifically, compared to neat phenolic (PF) foam, at only 0.9 phr (parts per hundred of resin by mass) of CoAl-LDH/GO, the compressive and flexural strengths of the modified PF foam increase by 54.8% and 35.2%, respectively, and pulverization ratio decreases by 55.2%. The addition of the CoAl-LDH/GO nanohybrid also results in an increase in the limiting oxygen index and a decrease in the peak heat release of the modified PF foam in cone calorimeter test. Moreover, the thermal stability of the PF foam is enhanced by the addition of the nanohybrid.

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