Measurement of crystallinity in drawn polyethylene terephthalate fibres by X-ray diffraction
Year: 1960
Type: article
Abstract: A method has been devised for the measurement of crystallinity in drawn fibres of polyethylene terephthalate fibre by an X-ray technique. Strictly monochromatic X-ray radiation is used and the X-ray camera is evacuated. This enables the photographic film, which is used to record the X-ray reflexion, to be free of "white" radiation and parasitic X-ray radiation normally termed "air scatter". The results show that the crystallinity in drawn yarns is much lower than expected and that no correlation exists between the crystallinity so measured and the density of the yarns. The X-ray photographic method that has been developed is now comparable in speed with the alternative method of recording the X-ray diffraction pattern by means of a Geiger-Müller counter.
Authors: G Farrow, D Preston
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4231614701