A Novel Method for Manufacturing High-Performance Layered Silicate/Epoxy Nanocomposites Using an Epoxy-Diamine Adduct to Enhance Compatibility and Interfacial Reactivity

2018 ◽  
Vol 303 (6) ◽  
pp. 1800065 ◽  
Author(s):  
Ran Wei ◽  
Xiaoqun Wang ◽  
Xu Zhang ◽  
Shijie Wang ◽  
Shouyu Zhu ◽  
...  
Keyword(s):  
High Performance ◽  
Layered Silicate ◽  
Epoxy Nanocomposites ◽  
Novel Method ◽  
Interfacial Reactivity

Factors Influencing the Morphology Development of Epoxy Nanocomposites

2006 ◽  
Author(s):  
Chenggang Chen
Keyword(s):  
High Performance ◽  
Layered Silicate ◽  
Aromatic Diamine ◽  
Epoxy Nanocomposites ◽  
Epoxy Nanocomposite ◽  
Molecular Weights ◽  
X Ray Scattering ◽  
Factors Influencing ◽  
Morphology Development

Polymer nanocomposites draw great interest due to their unique nanostructures and improved properties [1–2]. Epoxy is a widely-used thermosetting material. The research on the epoxy layered-silicate epoxy nanocomposite has exploded in the last decade [3–9]. The morphology of nanocomposites is the key to making high-performance nanocomposites. In this presentation, the factors influencing the morphology development behavior of epoxy nanocomposites will be discussed. The factors to be investigated include organoclay, epoxide, and curing agent. In this study, the aliphatic diamine (Jeffamines) with different molecular weights and aromatic diamine were selected as the curing agents, S30B (quaternary onium-montmorillonite) and SC18 (primary oniummont-morillonite) as the organoclays, and Epon 862 and Epon 828 as epoxides. In situ small-angle x-ray scattering (SAXS) was utilized to study the morphology development of the epoxy nanocomposite.

scholarly journals A Novel Method of Assessment for Monitoring Neuromuscular Fatigue in Australian Rules Football Players

2019 ◽  
Vol 14 (5) ◽  
pp. 598-605 ◽  
Author(s):  
Joel Garrett ◽  
Stuart R. Graham ◽  
Roger G. Eston ◽  
Darren J. Burgess ◽  
Lachlan J. Garrett ◽  
...  
Keyword(s):  
High Performance ◽  
Recovery Phase ◽  
Neuromuscular Fatigue ◽  
Football Players ◽  
Alternative Method ◽  
Jump Test ◽  
Australian Rules Football ◽  
Novel Method ◽  
Run Test ◽  
Method Of Assessment

Purpose: To compare the sensitivity of a submaximal run test (SRT) with a countermovement-jump test (CMJ) to provide an alternative method of measuring neuromuscular fatigue (NMF) in high-performance sport. Methods: A total of 23 professional and semiprofessional Australian rules football players performed an SRT and CMJ test prematch and 48 and 96 h postmatch. Variables from accelerometers recorded during the SRT were player load 1D up (vertical vector), player load 1D side (mediolateral vector), and player load 1D forward (anteroposterior vector). Meaningful difference was examined through magnitude-based inferences (effect size [ES]), with reliability assessed as typical error of measurements expressed as coefficient of variance. Results: A small decrease in CMJ height, ES −0.43 ± 0.39 (likely), was observed 48 h postmatch before returning to baseline 96 h postmatch. This was accompanied by corresponding moderate decreases in the SRT variables player load 1D up, ES −0.60 ± 0.51 (likely), and player load 1D side, ES −0.74 ± 0.57 (likely), 48 h postmatch before also returning to prematch baseline. Conclusion: The results suggest that in the presence of NMF, players use an alternative running profile to produce the same external output (ie, time). This indicates that changes in accelerometer variables during an SRT can be used as an alternative method of measuring NMF in high-performance Australian rules football and provides a flexible option for monitoring changes in the recovery phase postmatch.

Experimental and quantitative assessment of flame retardancy by the shielding effect in layered silicate epoxy nanocomposites

2012 ◽  
Vol 159 (12) ◽  
pp. 3616-3623 ◽  
Author(s):  
Guang Mei Wu ◽  
Bernhard Schartel ◽  
Horst Bahr ◽  
Malte Kleemeier ◽  
Dan Yu ◽  
...  
Keyword(s):  
Flame Retardancy ◽  
Quantitative Assessment ◽  
Layered Silicate ◽  
Shielding Effect ◽  
Epoxy Nanocomposites

High Performance Hybrid Filler Reinforced Epoxy Nanocomposites

2017 ◽  
pp. 371-422 ◽  
Author(s):  
Suman Chhetri ◽  
Tapas Kuila ◽  
Suneel Kumar Srivastava
Keyword(s):  
High Performance ◽  
Epoxy Nanocomposites ◽  
Hybrid Filler
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