X-Ray Diffraction Studies on CottodJute Blends
This communication is concerned with some exploratory studies conducted to assess whether x-ray diffraction (XRD) methods can be applied for analyzing the blend compositions (BC) in yarns spun from blends of cotton and jute fibers.
EXPERIMENTAL
Ni-filtered CuK, radiation from a Philips stabilized x-ray generator with diffractometer and recording accessories was used for obtaining the XRD patterns. Fibers weighing about 150 mg were cut into fine powder, passed through a 150-mesh screen, and filled in the Philips rectangular specimen holder. The sample was then subjected to a pressure of 25,000 1 b h 2 for 5 min and its XRD pattern recorded.
For obtaining the (002) azimuthal intensity profiles, a bundle of well-parallelized fibers was mounted on a face plate kept normal to the incident x-ray beam collimated by a 0.5-mm collimator. A hole in the center of the plate allowed the beam to fall on the bundle. The diffracted x-rays were received by a Geiger counter placed in the horizontal plane and set at 20" (002) with respect to the direction of the incident beam. The counter was coupled through a rate meter to a strip-chart recorder. The face plate was rotated in its own plane a t the rate of 1 r e v h r and the (002) azimuthal intensity profile recorded.