نتایج جستجو برای: nano-fibres

تعداد نتایج: 66655  

2011
Gary Chinga-Carrasco

During the last decade, major efforts have been made to develop adequate and commercially viable processes for disintegrating cellulose fibres into their structural components. Homogenisation of cellulose fibres has been one of the principal applied procedures. Homogenisation has produced materials which may be inhomogeneous, containing fibres, fibres fragments, fibrillar fines and nanofibrils....

2011
Mangesh D. Teli Ravindra D. Kale

Antibacterial nanocomposite polyester (PET) fibres were melt spun by adding nano ZnO loaded Linear Low Density Polyethylene (LLDPE) master batch (MB) to the PET chips. The influence of content of nano ZnO on the antibacterial properties, crystallization behaviour and mechanical properties was studied. It was found that PET composite fibres having 1 % nano ZnO showed the optimum antibacterial ac...

2013
Yihong Wang Xiaoyi Wei Jihua Li Fei Wang Qinghuang Wang Lingxue Kong

Nano-cellulose materials are widely believed to have the potential to push polymer mechanical properties. The cotton cellulose was dissolved in ionic liquid (1-butyl-3-methylimidazolium chloride ([Bmim]Cl)), and then was isolated by high pressure homogenization in a homogeneous media. The nano-cellulose was obtained at 80 MPa for 30 cycles. The geometry and microstructure of the cellulose nano-...

2014
Quan-Li Li Tian-Yun Ning Ying Cao Wei-bo Zhang May Lei Mei Chun Hung Chu

BACKGROUND Researchers are looking for biomimetic mineralization of ena/mel to manage dental erosion. This study evaluated biomimetic mineralization of demineralized enamel induced by a synthetic and self-assembled oligopeptide amphiphile (OPA). RESULTS The results showed that the OPA self-assembled into nano-fibres in the presence of calcium ions and in neutral acidity. The OPA was alternate...

Journal: :iranian journal of chemical engineering 0
yasaman hamedani department of polymer engineering, science and research branch, islamic azad university, p.o.box 14155/4933, tehran, iran naghmeh fazeli department of polymer engineering, science and research branch, islamic azad university, p.o.box 14155/4933, tehran, iran. jalal barzin iran polymer and petrochemical institute, p.o. box 14965/115, tehran, iran

silver sulfadiazine is used to prevent and treat infections of second- and third-degree burns. it kills a wide variety of bacteria. in this study silver sulfadiazine was used in gelatin based electro-spun nano-fibers with various drug to polymer ratios (0, 5, 10, 15 and 20 %). sem, edx and ftir analysis showed that the continuous, bead-free, fine fibers containing silver sulfadiazine as an anti...

2009
Shaghik Atakaramians Hendrik Franke Derek Abbott Tanya M. Monro Christophe Fumeaux

The progress of full-field electromagnetic tools coupled to increasingly powerful computing hardware offer the possibility of modelling accurately micro/nano-structured fibres. Together with the advances in fabrication methods, this opens the door to the realization of optimized designs with growing complexity. Three examples of simulations are presented here to illustrate the application of ge...

2014
Md AYUB Anthony C. ZANDER Carl Q. HOWARD Benjamin S. CAZZOLATO Vesselin N. SHANOV Noe T. ALVAREZ David M. HUANG

Advances in nanotechnology have provided acoustic researchers with a number of new materials with nano-fibres and nano-pores that can potentially be implemented as an acoustic porous absorber. This paper investigates the acoustic absorption behaviour of carbon nanotube (CNT) arrays, in order to quantify the acoustic characteristics and absorption performance of nanoscopic fibres in comparison w...

2011
Jonny J. Blaker Koon-Yang Lee Alexander Bismarck

Recent interest in the utilisation of greener materials has reinitiated the interest in natural fibres and/or fibrils as reinforcement for polymers. However, such bio-based composites often exhibit properties that fall short of expectations due to (i) inadequate processing conditions, resulting in filler agglomeration and poor filler dispersion within the matrix, (ii) variations in natural fibr...

2017
Chao Tang Xu Li Zhiwei Li Jian Hao

For further analysis of the effect of nano-doping on the properties of high polymers and research into the mechanism behind modified interfacial hydrogen bonds, a study on the formation probability of nano-SiO2/meta-aramid fibre interfacial hydrogen bonds and the strengthening mechanism behind interfacial hydrogen bonds on the thermal stability of meta-aramid fibres using molecular dynamics is ...

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