X-Ray Orientation Measurements of Cotton Fibers Using Yarn Samples

1981 ◽  
Vol 51 (11) ◽  
pp. 722-724 ◽  
Author(s):  
A.R. Kalyanaraman
Keyword(s):  
2017 ◽  
Vol 893 ◽  
pp. 71-76 ◽  
Author(s):  
Md. Nahid Pervez ◽  
Faizan Shafiq ◽  
Muhammad Munib Jilani ◽  
Zahid Sarwar ◽  
Ying Jie Cai

This paper explores the effect of prior enzymatic treatment on non-formaldehyde crosslinked cotton fiber and crystalline structure of cotton fibers after enzyme, crosslinking and a combination of enzyme and crosslinking treatments were examined by X-ray diffractometer. Results showed that during crosslinking treatment crystallinity index (%) values were increased with reduced crystallinity size and crosslinked of enzyme treated cotton did not change the crystalline nature of cotton (i.e. it was Cellulose I). In addition, by analysing FT-IR and SEM data it is confirmed that uniform presence of crosslinking agents was visible on cotton fibres.


1988 ◽  
Vol 58 (5) ◽  
pp. 299-301 ◽  
Author(s):  
S. Sreenivasan ◽  
K. R. Krishna Iyer ◽  
P. K. Chidambareswaran ◽  
N. B. Patil

X-ray orientation profiles were recorded that pertained to the three equatorial planes from cotton fibers containing both cellulose I and II lattices and from viscose fibers. The changes in orientation brought about by swelling and stretching treatments could be accurately followed by studying the distribution of any one of the diffraction arcs.


1941 ◽  
Vol 14 (1) ◽  
pp. 273-288
Author(s):  
R. F. Nickerson

Abstract The study by chemical methods of the constitution, derivatives, and properties of cellulose has yielded a voluminous literature and a wealth of useful information. Microscopic and x-ray investigations have produced much new and valuable knowledge of cellulose and its structure. But relatively little attention is given to the mechanical properties of cellulosic fibers, although such properties reflect fiber structure and frequently determine suitability to specific applications. An exhaustive review of the relevant literature on cotton has not been undertaken in this paper; rather, the object is to summarize the available data on constitution and properties and, wherever possible, to indicate their relations to the most probable fiber structure. In this way the material as a whole is integrated into a working concept of the cotton fiber.


2017 ◽  
Vol 88 (12) ◽  
pp. 1356-1366 ◽  
Author(s):  
Rechana Remadevi ◽  
Stuart Gordon ◽  
Xungai Wang ◽  
Rangam Rajkhowa

In this paper, the effect of aqueous glycine treatments at different pH on the tensile properties of cotton fibers is reported. The effects on linear density and X-ray diffraction crystallinity were also evaluated. Glycine treated fibers at alkaline pH (i.e. at pH 11) produced fibers with higher linear density than control (untreated) and glycine treatments at acidic pH. The same treatment also increased strain values in cotton fibers by as much as 36%. Interestingly, similar changes in strain were observed under acidic conditions, especially at pH4, although the changes were smaller. Specific stress values normalized by the linear density measurements were not significantly different from control samples. The results of this research demonstrated improved strain properties of cotton fibers after aqueous glycine treatment at suitable conditions.


2021 ◽  
Vol 16 ◽  
pp. 155892502110438
Author(s):  
Parshuram Singh ◽  
Sapna Balayan ◽  
Rajendra Kumar Sarin ◽  
Utkarsh Jain

Fibers are the unit component for product development. They can be divided into two types: synthetic and natural fibers. Recently, emerging nanotechnology has played a vital role in advancing next-generation fabrics. The nanomaterials provide several unique properties such as higher conductivity, self-cleaning, water-resistant, and others. Owing to their advanced properties, the fabrics are being developed by coating and integrating with nanomaterials. Therefore, in the presented work two cotton samples were modified with titanium dioxide (TiO2) and zinc oxide (ZnO). These samples were further examined under various techniques including scanning electron microscopy (SEM), UV-visible spectroscopy, X-ray fluorescence (XRF), and Fourier-transform infrared spectroscopy (FTIR). Furthermore, these samples were evaluated at varying wavelengths with UV light and the obtained results demonstrated that the nano-coated fiber samples can be differentiated at 365 nm.


1967 ◽  
Vol 37 (6) ◽  
pp. 517-524 ◽  
Author(s):  
Kermit E. Duckett ◽  
Verne W. Tripp

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