scholarly journals Investigation of the Structure and Properties of Silk Fibers Produced by Actias lunas

2012 ◽  
Vol 20 (3) ◽  
pp. 659-664 ◽  
Author(s):  
Narendra Reddy ◽  
Yiqi Yang
Keyword(s):  
Structure And Properties ◽  
Silk Fibers

Methanol Induced Changes in Structure and Properties of Dry Spinning Fibers of Regenerated Silk Fibroin

2011 ◽  
Vol 335-336 ◽  
pp. 908-911
Author(s):  
Yan Long Ma ◽  
Jing Xin Zhu ◽  
Hui Li Shao ◽  
Xue Chao Hu
Keyword(s):  
Random Coil ◽  
Fiber Axis ◽  
Structure And Properties ◽  
Silk Fibers ◽  
Methanol Treatment ◽  
Dry Spinning ◽  
Regenerated Silk Fibroin ◽  
Spun Fiber ◽  
Induced Changes ◽  
Spun Fibers

The as-spun fibers, which be produced by dry spinning technique, were treated with methanol solution. The results showed that the morphology, structure and mechanical properties of the as-spun fibers had changed. Before methanol treatment,the as-spun fiber had a smooth surface, after methanol treatment, the fiber exhibited rough surface and banded features along the fiber axis. The structure of the as-spun fibers changed from random-coil or silk I conformation to silk II conformation and the breaking intensity of the as-spun fibers were improved after methanol treatment. Compared with degummed silk fibers, the fibers treated with methanol had higher module, but the breaking elongation was lower, the fibers were still brittle.

Structure and properties ofBombyx mori silk fibers grafted with methacrylamide (MAA) and 2-hydroxyethyl methacrylate (HEMA)

1996 ◽  
Vol 60 (11) ◽  
pp. 1867-1876 ◽  
Author(s):  
Giuliano Freddi ◽  
Maria Rosaria Massafra ◽  
Silvia Beretta ◽  
Shizuka Shibata ◽  
Yoko Gotoh ◽  
...  
Keyword(s):  
Hydroxyethyl Methacrylate ◽  
Structure And Properties ◽  
Silk Fibers

Structure and Properties of Porous Bulked Tussah Silk and its Product

2013 ◽  
Vol 796 ◽  
pp. 172-175
Author(s):  
Tie Ling Xing ◽  
Jia Yong Sheng ◽  
Guo Qiang Chen ◽  
Yong Fa Yang ◽  
Ya Guang Liu
Keyword(s):  
Elastic Recovery ◽  
High Tech ◽  
Structure And Properties ◽  
Silk Fibers ◽  
High Elasticity ◽  
Physical Processing ◽  
Recovery Percentage ◽  
Degumming Process ◽  
Warm Clothing ◽  
Better Than

Tussah silk is a special product of China, which has luxury, ecological and health care advantages. Tussah silk is particularly suitable for the production of silk quilt, silk blanket, warm clothing and other products. In this work, porous bulked tussah silk fibers could be obtained through high temperature, high pressure, steaming explosion and puffing physical processing high-tech without any chemicals and assistants during degumming process. The surface morphology, size, porosity and mechanical property of the porous bulked tussah silk fibers were studied and compared with the ordinary tussah silk fibers. SEM results indicated that the bulked tussah silk fibers had porous structure. And the porous bulked tussah silk had higher elasticity and softness than the ordinary tussah silk fibers. Porous bulked and high elasticity tussah silk quit was produced from the ecotype porous bulked tussah silk fibers. The wearability of porous bulked tussah silk quilt was also investigated. The results showed that the insulating property, elastic recovery percentage and bulkiness of the porous bulked tussah silk quilt were all better than those of the ordinary silk quilt. As a result of the high resilience and flexibility of porous bulked tussah silk, the tussah quilt can effectively prevent the tangles and clumping of the silk fibers and is durable.

Structure of second phases in TiAl alloys containing Cr and B

1991 ◽  
Vol 49 ◽  
pp. 576-577
Author(s):  
Ernest L. Hall ◽  
Shyh-Chin Huang
Keyword(s):  
Grain Size ◽  
Second Phase ◽  
Structure And Properties ◽  
Tial Alloys ◽  
Second Phases ◽  
Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

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