scholarly journals Microporous structures in natural polymer

2018 ◽  
Vol 44 ◽  
pp. 00014
Author(s):  
Maciej Borowczak ◽  
Stanisław Frąckowiak
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Structure ◽  
Process Parameters ◽  
Natural Polymer ◽  
Butylene Succinate ◽  
Biodegradable Poly ◽  
Solvent Systems ◽  
Scanning Electron

Electrospinning of biodegradable poly (butylene succinate) has been performed from different solvent systems. Alternation of process parameters resulted in respective changes of the surface structure topography which was evaluated by using scanning electron microscopy (SEM).

scholarly journals Unique properties of Ecoflex® electrospun structures

2019 ◽  
Vol 116 ◽  
pp. 00011
Author(s):  
Maciej Borowczak ◽  
Karolina Sobczyk ◽  
Karol Leluk
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Structure ◽  
Process Parameters ◽  
Structure Morphology ◽  
Biodegradable Poly ◽  
Scanning Electron

Electrospinning of biodegradable poly(butylene adipate-co-terephthalate) has been performed. Alternation of process parameters resulted in slight changes in the surface structure morphology of the obtained fibres which was evaluated by using scanning electron microscopy (SEM).

Examination of Schistosome Cercariae and Schistosomules by Scanning Electron Microscopy

1969 ◽  
Vol 27 ◽  
pp. 50-51
Author(s):  
D. Johnson ◽  
P. Moriearty
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
High Resolution ◽  
Light Microscopy ◽  
Surface Structure ◽  
Extensive Study ◽  
Scanning Microscopy ◽  
Host Parasite ◽  
Conventional Electron Microscopy ◽  
Scanning Electron

Since several species of Schistosoma, or blood fluke, parasitize man, these trematodes have been subjected to extensive study. Light microscopy and conventional electron microscopy have yielded much information about the morphology of the various stages; however, scanning electron microscopy has been little utilized for this purpose. As the figures demonstrate, scanning microscopy is particularly helpful in studying at high resolution characteristics of surface structure, which are important in determining host-parasite relationships.

Analyse des Stuckgipses der Abtei Villers / Analysis of Stucco from the Abbey of Villers

1997 ◽  
Vol 3 (4) ◽  
pp. 381-396
Author(s):  
S. Chandra ◽  
D. Van Gemert
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Chemical Analysis ◽  
Electron Spectroscopy ◽  
Natural Polymer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

Abstract Interior plaster from the Abbot's Palace of the Abbey of Villers-la-Ville, Brabant Wallon province, Belgium has been investigated. It is done by using chemical analysis, x-ray diffraction analysis, scanning electron microscopy, energy dispersive electron spectroscopy, and transmission electron microscopy. It is found that the rendering was made with lime rich mortar and animal hairs. The sand used was very fine and the hairs were very short. The solid constituents and the hairs were uniformly dispersed, which could have been obtained by the addition of some other natural polymer, containing protein.

Manufacturing and Evaluation of Porous PLA Nano/Micro Fibres

2016 ◽  
Vol 368 ◽  
pp. 146-149
Author(s):  
Eva Macajová
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Polymer Solution ◽  
Process Parameters ◽  
Fibre Diameter ◽  
Solution Composition ◽  
Structure And Morphology ◽  
Spinning Process ◽  
Scanning Electron

This study is mainly focused on the study of pore size and shape, fibre diameter and also on the optimization of polymer solution composition and electrospinning parameters with respect to the final structure and morphology of PLA nano/microfibrous layers. The nano/microfibres were produced by electrospinning from the needle. Except the spinning process parameters, the morphology of nanofibrous layers can be also affected by the composition of the polymer solution and by the used solvents. Variations in technological process allows us to design the shape and form of nanofibrous structures upon request. The morphology of nano/microfibres was observed by scanning electron microscopy (SEM). Following image analysis and calculation enables the assessment of porosity contribution to the increase in micro/nanofibre surface area.

Effect of compatibilizer on the properties of PBS/lignin composites prepared via a vane extruder

2015 ◽  
Vol 35 (9) ◽  
pp. 829-837 ◽  
Author(s):  
Huan Yu Liu ◽  
Fu Quan Chen ◽  
Rui Biao Guo ◽  
GuiZhen Zhang ◽  
JinPing Qu
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Water Absorption ◽  
Interfacial Adhesion ◽  
Tensile Modulus ◽  
Softening Temperature ◽  
Flexural Property ◽  
Grafted Polymers ◽  
Butylene Succinate ◽  
Scanning Electron

Abstract Maleic anhydride (MAH) grafted polymers and silanes have been used as the compatibilizer in poly (butylene succinate)/lignin (PBS/lignin) composites. Compatibilized composites were fabricated by a novel vane extruder (VE). The effects of MAH grafted and coupling agent on the mechanical, thermal property, rheological property and water absorption of PBS/lignin were investigated. The results showed that the use of MAH grafted polymers and silanes resulted in significant improvements in flexural property, tensile modulus and tensile strength. Furthermore, MAH grafted polymers and silanes exhibited some improvement on the properties of vicat softening temperature as well as water absorption. The composites treated by MAH grafted polymers and silanes showed non-Newtonian behaviors from rheological tests. A better interfacial adhesion between lignin and matrix was observed from the scanning electron microscopy (SEM) of the compatibilized composites.

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