Flammability of polystyrene layered silicate (clay) nanocomposites: Carbonaceous char formation

2002 ◽  
Vol 26 (6) ◽  
pp. 247-253 ◽  
Author(s):  
Alexander B. Morgan ◽  
Richard H. Harris ◽  
Takashi Kashiwagi ◽  
Leonard J. Chyall ◽  
Jeffrey W. Gilman
Keyword(s):  
Layered Silicate ◽  
Clay Nanocomposites ◽  
Char Formation ◽  
Silicate Clay

Synthesis and characterization ofin situ polymerized segmented thermoplastic elastomeric polyurethane/layered silicate clay nanocomposites

2006 ◽  
Vol 102 (3) ◽  
pp. 3048-3055 ◽  
Author(s):  
Mi Young Choi ◽  
S. Anandhan ◽  
Ji Ho Youk ◽  
Du Hyun Baik ◽  
Seung Won Seo ◽  
...  
Keyword(s):  
Layered Silicate ◽  
Synthesis And Characterization ◽  
Clay Nanocomposites ◽  
Silicate Clay

scholarly journals An Investigative Study on the Progress of Nanoclay-Reinforced Polymers: Preparation, Properties, and Applications: A Review

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4401
Author(s):  
Dalia E. Abulyazied ◽  
Antoaneta Ene
Keyword(s):  
Flame Retardant ◽  
Biomedical Applications ◽  
Scientific Literature ◽  
Layered Silicate ◽  
Clay Nanocomposites ◽  
Synthesis Methods ◽  
Clay Material ◽  
Reinforced Polymers ◽  
General Characterization ◽  
Silicate Clay

Nanoclay-reinforced polymers have attracted considerable universal attention in academic and industrial research due to their outstanding properties and their ever-expanding utilization in diversified applications. In that regard, in the present review, the structure of layered silicate clay, as well as procedures for clay material modification, are outlined. We also discuss the general characterization techniques, synthesis methods, and various properties of polymer–clay nanocomposites (PCNs), and some examples likewise are depicted from the scientific literature. The study’s primary goal is to provide an up-to-date survey of polymer–clay nanocomposites and their specific applications in industries such as automotive, flame-retardant, and biomedical applications, coating, and packaging.

Novel biobased nanocomposites from functionalized vegetable oil and organically-modified layered silicate clay

Polymer ◽  
2005 ◽  
Vol 46 (2) ◽  
pp. 445-453 ◽  
Author(s):  
Hiroaki Miyagawa ◽  
Manjusri Misra ◽  
Lawrence T. Drzal ◽  
Amar K. Mohanty
Keyword(s):  
Vegetable Oil ◽  
Layered Silicate ◽  
Organically Modified ◽  
Silicate Clay

Structure and properties of styrene-butadiene rubber/ pristine clay nanocomposites prepared by latex compounding method

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Mahdi Abdollahi ◽  
Ali Rahmatpour ◽  
Jamal Aalaie ◽  
Homayon Hossein Khanli
Keyword(s):  
Mechanical Properties ◽  
Layered Silicate ◽  
Clay Content ◽  
Mechanical Tests ◽  
Styrene Butadiene Rubber ◽  
Clay Nanocomposites ◽  
Butadiene Rubber ◽  
Initial Modulus ◽  
Elastic Responses ◽  
Styrene Butadiene

AbstractStyrene- butadiene rubber (SBR)/ clay nanocomposites were prepared by mixing the SBR latex with aqueous clay dispersion and co-coagulating the mixture. Tapping mode AFM and XRD were applied to characterize the structure of nanocomposites. It was found that fully exfoliated structure could be obtained by this method only when the low loading of layered silicate (< 10 phr) is used. With increasing the clay content, both non-exfoliated (stacked layers) and exfoliated structures can be observed simultaneously in the nanocomposites. The results of mechanical tests on the vulcanized pure SBR and SBR/ clay nanocomposites showed that the nanocomposites presents better mechanical properties than clayfree SBR vulcanizate. Furthermore, initial modulus, tensile strength, tensile strain at break, hardness (shore A) and tear strength increased with increasing the clay content, indicating the nanoreinforcement effect of clay on the mechanical properties of SBR/ clay nanocomposites. Compared to the clay free SBR vulcanizate, the nanocomposite vulcanizates exhibit a lower tanδ peak value, higher storage modulus and higher tanδ value at the rubbery region (0-60 °C) which indicate that the elastic responses of pure SBR towards deformation are strongly influenced by the presence of nanodisperced natural sodium montmorillonite layers especially completely exfoliated silicate layers.

Exfoliation of layered silicate facilitated by ring-opening reaction of cyclic oligomers in PET–clay nanocomposites

Polymer ◽  
2005 ◽  
Vol 46 (7) ◽  
pp. 2201-2210 ◽  
Author(s):  
Sang-Soo Lee ◽  
Young Tae Ma ◽  
Hee-Woo Rhee ◽  
Junkyung Kim
Keyword(s):  
Ring Opening ◽  
Layered Silicate ◽  
Clay Nanocomposites ◽  
Ring Opening Reaction ◽  
Cyclic Oligomers

scholarly journals 3D Printing of PLA/clay Nanocomposites: Influence of Printing Temperature on Printed Samples Properties

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1947 ◽  
Author(s):  
Bartolomeo Coppola ◽  
Nicola Cappetti ◽  
Luciano Di Maio ◽  
Paola Scarfato ◽  
Loredana Incarnato
Keyword(s):  
Elastic Modulus ◽  
3D Printing ◽  
Layered Silicate ◽  
Tensile Tests ◽  
Nucleating Agent ◽  
Clay Nanocomposites ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Dog Bone ◽  
3D Printed

In this study, the possibility of using a layered silicate-reinforced polylactic acid (PLA) in additive manufacturing applications was investigated. In particular, the aim of this work was to study the influence of printing temperature in the 3D printing process of PLA/clay nanocomposites. For this reason, two PLA grades (4032D and 2003D, D-isomer content 1.5 and 4, respectively) were melt-compounded by a twin screw extruder with a layered silicate (Cloisite 30B) at 4 wt %. Then, PLA and PLA/clay feedstock filaments (diameter 1.75 mm) were produced using a single screw extruder. Dog-bone and prismatic specimens were 3D printed using the FDM technique at three different temperatures, which were progressively increased from melting temperature (185–200–215 °C for PLA 4032D and 165–180–195 °C for PLA 2003D). PLA and PLA/clay specimens were characterized using thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and tensile tests. Moreover, the morphology of the 3D printed specimens was investigated using optical microscopy and contact angle measurements. The different polymer matrix and the resulting nanocomposite morphology strongly influenced 3D printed specimen properties. DMA on PLA/clay filaments reported an increase in storage modulus both at ambient temperature and above the glass transition temperature in comparison to neat PLA filaments. Furthermore, the presence of nanoclay increased thermal stability, as demonstrated by TGA, and acted as a nucleating agent, as observed from the DSC measurements. Finally, for 3D printed samples, when increasing printing temperature, a different behavior was observed for the two PLA grades and their nanocomposites. In particular, 3D printed nanocomposite samples exhibited higher elastic modulus than neat PLA specimens, but for PLA 4032D+C30B, elastic modulus increased at increasing printing temperature while for PLA 2003D+C30B slightly decreased. Such different behavior can be explained considering the different polymer macromolecular structure and the different nanocomposite morphology (exfoliated in PLA 4032D matrix and intercalated in PLA 2003D matrix).

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