Molecular Simulation and Modeling of the Structure and Properties of Polymer Nano-Particles

2002 ◽  
pp. 93-105
Author(s):  
Bobby G. Sumpter ◽  
Kazuhiko Fukui ◽  
Michael D. Barnes ◽  
Donald W. Noid
Keyword(s):  
Molecular Simulation ◽  
Nano Particles ◽  
Structure And Properties ◽  
Simulation And Modeling

Preparation and Properties of Nano-Silica/calcium Alginate Blend Fibers

2011 ◽  
Vol 332-334 ◽  
pp. 321-326
Author(s):  
Feng Jun Wang ◽  
Quan Ji ◽  
Jian Jun Zhang ◽  
Li Wen Tan ◽  
Feng Yu Quan ◽  
...  
Keyword(s):  
Calcium Alginate ◽  
Nano Particles ◽  
Sio2 Content ◽  
Wet Spinning ◽  
Structure And Properties ◽  
Nano Silica ◽  
The Mean ◽  
Alginate Fibers ◽  
Alginate Fiber ◽  
Spinning Condition

Calcium alginate fibers and nano-silica/calcium alginate blend fibers were prepared by the mean of wet spinning at the same spinning condition. The effect of nano-particles SiO2 on the structure and properties of alginate fibers were studied via many tests. The results showed that the tenacity of blend fibers increased with the growth of the content of SiO2 ranging from 1% to 5%, however, the tenacity of fibers became worse when the content of SiO2 was more than 5%. The effect of SiO2 content on hardness and tribological properties of the calcium alginate fiber was studied. The morphologies of the fibers surfaces were examined with a Scanning Electron Microscope (SEM). The result showed that the surface of blend fibers was still smooth when the consent of SiO2 not up to 7%, the best surface was obtained when SiO2 content was 5%. The incorporation of SiO2 also affected the absorption property of alginate fiber and made it decrease with the increase of SiO2 content. The structures of calcium alginate fibers and nano-silica/calcium alginate blend fibers were studied by infrared spectrum.

Characterization and Synthesis of Ni0.6Zn0.4(Fe2O4)1 Nano-Particles Using Sol-Gel Method

2007 ◽  
Vol 334-335 ◽  
pp. 993-996
Author(s):  
Qiao Ling Li ◽  
Yun Ye ◽  
Yong Fei Wang ◽  
Hong Xia Jing ◽  
Ya Kun Wang
Keyword(s):  
Ph Value ◽  
Sol Gel ◽  
Nano Particles ◽  
Structure And Properties ◽  
Medical Apparatus ◽  
Gel Method ◽  
Zn Ferrite ◽  
Magnetically Soft Material ◽  
Calcined Temperature ◽  
Medical Signal

Ni-Zn ferrite is a kind of important magnetically soft material that has been used widely in medical signal deal and medical apparatus. So, many people are interested in both the prepare process of Zn ferrite (especially the prepare process of nanometer ferrite) and the study of its structure and properties. In this paper the condition in which Ni-Zn ferrite powders was prepared by sol-gel methods was studied. The pH value, calcined temperature, calcined time were investigated. With the designing experiment, the best condition was confirmed. The microstructures and particles size were characterized by means of TEM、IR、XRD and so on.

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