Rheology and thermal stability of polylactide/clay nanocomposites

2006 ◽  
Vol 91 (12) ◽  
pp. 3149-3155 ◽  
Author(s):  
Defeng Wu ◽  
Liang Wu ◽  
Lanfeng Wu ◽  
Ming Zhang
Keyword(s):  
Thermal Stability ◽  
Clay Nanocomposites ◽  
Thermal Stability Of

Thermal stability of polypropylene-clay nanocomposites subjected to laser pulse heating

2013 ◽  
Vol 98 (12) ◽  
pp. 2497-2502 ◽  
Author(s):  
Stephen F. Bartolucci ◽  
Karen E. Supan ◽  
Jeffrey S. Wiggins ◽  
Lawrence LaBeaud ◽  
Jeffrey M. Warrender
Keyword(s):  
Thermal Stability ◽  
Laser Pulse ◽  
Pulse Heating ◽  
Clay Nanocomposites ◽  
Laser Pulse Heating ◽  
Thermal Stability Of

Preparation and Characterization of Poly Methyl Methacrylate/Clay Nanocomposite Powders by Microwave-Assisted In-Situ Suspension Polymerization

2020 ◽  
Vol 20 (7) ◽  
pp. 4193-4197
Author(s):  
Seong Deok Seo ◽  
Kyung Chan Kang ◽  
Ji Won Jeong ◽  
Seung Min Lee ◽  
Ju Dong Lee ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Methyl Methacrylate ◽  
Hydroxyl Group ◽  
Silicate Layer ◽  
Clay Nanocomposites ◽  
Gravimetric Analysis ◽  
Poly Methyl Methacrylate ◽  
Nanocomposite Powders ◽  
Thermal Stability Of

The PMMA (poly methyl methacrylate)/clay nanocomposite powders were synthesized by In-Situ suspension polymerizations using microwave heating. The PMMA/clay nanocomposites were also sampled using injection moulding to make specimens for material characterization. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) indicated the formation of a highly intercalated clay layer in the nanocomposites. It was found that the microstructure of PMMA/clay nanocomposites was strongly dependent of content of clay. Thermo gravimetric analysis (TGA) indicated an improvement in the thermal stability of nanocomposites compared to that of the pure PMMA. Differential scanning calorimetry (DSC) showed that the nanocomposites had a higher glass transition (Tg) temperature than the PMMA. Fourier-transform infrared (FT-IR) spectroscopy indicated an interaction between the carbonyl group of PMMA and hydroxyl group of the clay. Therefore, a possible reason in enhanced material properties of nanocomposites is that the chemical interaction and nanostructure of PMMA polymer and intercalated inorganic silicate layer has increased the thermal stability of the PMMA/clay nanocomposites.

Thermal Stability and Aging Characteristics of HNBR/Clay Nanocomposites in Air, Water and Oil at Elevated Temperature

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Huang Anmin ◽  
Wang Xiaoping ◽  
Jia Demin ◽  
Li Yanmei
Keyword(s):  
Thermal Stability ◽  
Elevated Temperature ◽  
Physical And Mechanical Properties ◽  
Clay Nanocomposites ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Roll Mill ◽  
Before And After ◽  
Thermal Stability Of ◽  
Aging In Air

AbstractHydrogenated nitrile rubber (HNBR)/clay nanocomposites are prepared using conventional two-roll mill mixing technique. The structure and morphology of nanocomposites are characterized using wide angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). Both intercalated and exfoliated clay structures are observed in HNBR/clay nanocomposites. The thermal stability of the nanocomposites is studied using thermogravimetric analysis (TGA) and TGA-Fourier transform infrared (FTIR) spectroscopy. The effect of organoclay on physical and mechanical properties of HNBR vulcanizates before and after aging in air, water and oil at 178 °C is also investigated. It is found that adding organoclay in HNBR elastomer greatly improves material thermal stability and aging performance in different medium at elevated temperature.

Morphology, mechanical properties, and thermal stability of rigid PVC/clay nanocomposites

2010 ◽  
Vol 51 (4) ◽  
pp. 641-646 ◽  
Author(s):  
Margarita Mondragón ◽  
Saúl Sánchez-Valdés ◽  
María E. Sanchez-Espíndola ◽  
Jesús E. Rivera-López
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Clay Nanocomposites ◽  
Rigid Pvc ◽  
Thermal Stability Of

Effects of modified Clay on the morphology and thermal stability of PMMA/clay nanocomposites

2013 ◽  
Vol 138 (1) ◽  
pp. 230-237 ◽  
Author(s):  
Tsung-Yen Tsai ◽  
Mei-Ju Lin ◽  
Yi-Chen Chuang ◽  
Po-Chiang Chou
Keyword(s):  
Thermal Stability ◽  
Clay Nanocomposites ◽  
Modified Clay ◽  
Thermal Stability Of

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.

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