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Fibers and Polymers : Volume 3, Issue 3, September 2002

Fibers and Polymers : Volume 3, Issue 2, June 2002

Fibers and Polymers : Volume 3, Issue 1, March 2002

Fibers and Polymers : Volume 2

Fibers and Polymers : Volume 1

Correlating the fineness and residual gum content of degummed hemp fibres

Content Provider	Springer Nature Link
Author	Beltran, Rafael Hurren, Christopher J. Kaynak, Akif Wang, Xungai
Copyright Year	2002
Abstract	It is well known residual gum exists in degummed or retted hemp fibres. Gum removal results in improvement in fibre fineness and the properties of the resultant hemp yarns. However, it is not known what correlation if any exists between the residual gum content in retted hemp fibres and the fibre fineness, described in terms of fibre width in this paper. This study examined the mean width and coefficient of variation (CV) of fibre width of seventeen chemically retted hemp samples with reference to residual gum content. The mean and CV of fibre width were obtained from an Optical fibre diameter analyser (OFDA 100). The linear regression analysis results show that the mean fibre width is directly proportional to the residual gum content. A slightly weaker linear correlation also exists between the coefficient of variation of fibre width and the residual gum content. The strong linear co-relation between the mean of fibre width and the residual gum content is a significant outcome, since testing for fibre width using the OFDA is a much simpler and quicker process than testing the residual gum content. Scanning Electron Microscopy (SEM) reinforces the OFDA findings. SEM micrographs show a flat ribbon like fibre cross-section hence the term “fibre width” is used instead of fibre diameter. Spectral differences in the untreated dry decorticated skin samples and chemically treated and subsequently carded samples indicate delignification. The peaks at 1370 cm$^{−1}$, 1325 cm$^{−1}$, 1733 cm$^{−1}$, and 1600 cm$^{−1}$ attributed to lignin in the untreated samples are missing from the spectra of the treated samples. The spectra of the treated samples are more amine-dominated with some of the OH character lost.
Starting Page	129
Ending Page	133
Page Count	5
File Format	PDF
ISSN	12299197
Journal	Fibers and Polymers
Volume Number	3
Issue Number	4
e-ISSN	18750052
Language	English
Publisher	The Korean Fiber Society
Publisher Date	2002-01-01
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hemp Residual gum content Optical fibre diameter assessment Fibre fineness Chemical retting Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Polymers and Plastics

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