Composite effect of silica nanoparticle on the mechanical properties of cellulose-based hydrogels derived from cottonseed hulls

2016 ◽  
Vol 134 (10) ◽  
Author(s):  
Anyaporn Boonmahitthisud ◽  
Lisa Nakajima ◽  
Khoa Dang Nguyen ◽  
Takaomi Kobayashi
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticle ◽  
Composite Effect

Assembly of silica aerogels within silica nanofibers: towards a super-insulating flexible hybrid aerogel membrane

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91813-91820 ◽  
Author(s):  
Hongxia Zheng ◽  
Haoru Shan ◽  
Ying Bai ◽  
Xianfeng Wang ◽  
Lifang Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticle ◽  
Silica Aerogels ◽  
Nanofibrous Scaffold ◽  
Silica Nanofibers ◽  
Insulating Properties ◽  
Hybrid Aerogel

A robust flexible hybrid aerogel membrane with super-insulating properties and improved mechanical properties is developed by forming an interpenetrating silica nanoparticle network inside an electrospun silica nanofibrous scaffold.

Review on nano‐and microfiller‐based polyamide 6 hybrid composite: Effect on mechanical properties and morphology

2020 ◽  
Vol 60 (8) ◽  
pp. 1717-1759 ◽  
Author(s):  
Tarun Sai Ghanta ◽  
Sridhar Aparna ◽  
Namrata Verma ◽  
Doddipatla Purnima
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Polyamide 6 ◽  
Composite Effect

Controlling the Nanocontact Nature and the Mechanical Properties of a Silica Nanoparticle Assembly

2017 ◽  
Vol 121 (42) ◽  
pp. 23769-23776 ◽  
Author(s):  
J. Avice ◽  
C. Boscher ◽  
G. Vaudel ◽  
G. Brotons ◽  
V. Juvé ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticle ◽  
Nanoparticle Assembly

Mechanical properties of silica nanoparticle reinforced poly(ethylene 2, 6-naphthalate)

2004 ◽  
Vol 12 (3) ◽  
pp. 293-302 ◽  
Author(s):  
Seon Hoon Ahn ◽  
Seong Hun Kim ◽  
Byoung Chul Kim ◽  
Kwang Bo Shim ◽  
Bong Gyoo Cho
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticle ◽  
Poly Ethylene

The post-morphological analysis of electrospun vascular grafts following mechanical testing

2018 ◽  
Vol 38 (6) ◽  
pp. 525-535 ◽  
Author(s):  
Ipek Yalcin Enis ◽  
Telem Gok Sadikoglu ◽  
Jana Horakova ◽  
David Lukas
Keyword(s):  
Mechanical Properties ◽  
Cardiovascular Diseases ◽  
Production Technology ◽  
Vascular Graft ◽  
Morphological Analysis ◽  
Vascular Grafts ◽  
Single Layer ◽  
Composite Effect ◽  
Polymer Type ◽  
Morphology And Mechanical Properties

AbstractVascular grafts provide promising scaffolds for patients recuperating from cardiovascular diseases. Since it is necessary to mimic the native vessel in order to overcome the limitations of currently employed synthetic prostheses, researchers are tending to focus on the design of electrospun biodegradable multi-layer scaffolds which involves varying either the polymer type or constructional properties in each layer which, in turn, reveals the importance of layer interactions and their composite effect on the final multi-layer graft. This study describes the fabrication of biodegradable single-layer tubular scaffolds from polycaprolactone and poly(L-lactide)caprolactone polymers composed of either randomly distributed or, preferably, radially oriented fibers. Subsequently, bi-layer scaffolds were fabricated with a randomly distributed inner layer and a radially oriented outer layer from various polymer couple variations. The study focuses on vascular graft production technology including its morphology and mechanical properties. The post-morphologies of single-layer and bi-layer tubular scaffolds designed for vascular grafts were investigated as a continuation of a previously performed analysis of their mechanical properties. The results indicate that the mechanical properties of the final bi-layer grafts were principally influenced by the radially oriented outer layers acting as thetunica mediaof the native vessels when the appropriate polymer couples were chosen for the sub-layers.

scholarly journals Impact of Silica Nanoparticles on the Durability of fly Ash Concrete

2021 ◽  
Vol 7 ◽  
Author(s):  
D. Ali ◽  
U. Sharma ◽  
R. Singh ◽  
L. P. Singh
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Silica Nanoparticles ◽  
Silica Fume ◽  
Silica Nanoparticle ◽  
Fly Ash Concrete ◽  
Durability Properties ◽  
Concrete Mix

In the present study, the mechanical and durability properties of silica nanoparticle (SNP)-incorporated fly ash (FA) concrete mix were examined after 365 days of exposure. The dosages of FA replaced by cement in the present study were 30%, 40%, and 50%, while 3% SNPs were added by the weight of cement in the FA incorporated mix. For a comparison of SNPs with silica fume (SF), 6% SF was added (by the weight of cement) and entire casting was performed at a constant water to binder (w/b) ratio of 0.29. The present work is the extension of a previous study wherein durability properties of the same mixes were reported for up to 180 days of exposure. Compressive strength results show that in the presence of SNPs, the enhancement in compressive strength was in the range of 10–14%, while, in presence of SF, 8–10% of the enhancement was observed as compared to control. However, exposed samples in a carbonation environment showed that the compressive strength of the control and SF incorporated mix increased, while SNP-incorporated samples showed negligible enhancement. Further, sulphate exposed mix show that compressive strength decreases, however, the SNP-incorporated mix showed the lowest reduction compared to other mixes. Therefore, the study shows that the SNP-incorporated mix has higher mechanical properties and more durability compared to other mixes in a severe environment.

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