Page 7 - Cannabis&Hemp Industrial-Hemp-Brochure

Stalk: Textiles

FTIR and Infrared Microscope

Determination of Pectin Removal Level
Differentiation of Textile Fibers
FTIR spectroscopy may be used to determine the pectin removal level during the
purification process by monitoring the functional groups in the transmission mode
using the Shimadzu IRTracer-100 FTIR spectrometer (pictured in image on the left).
Using the attenuated total reflectance (ATR) accessory for ATR-FTIR the instrument
is capable of differentiate textile fibers by their chemical composition, commonly
classified by their origin as natural (e.g. hemp, cotton, linen, silk,
wool), regenerated (e.g. viscose hemp, cellulose acetate) and
synthetic (e.g. polyester, polyacrylic, polyamide).

The AIM-9000 microscope (pictured in image on the right) used in
conjunction with FTIR helps identify visible and chemical contaminants, breaks in
the fiber, and blends of fibers.

Chemical Structure
of Pectin

X-Ray Diffraction (XRD)

Determination of Crystallinity
During the different stages of chemi-mechanical treatment of the fibers, powder X-ray
diffraction (XRD) in transmission mode can be used to determine the crystallinity throughout
the process. The goal of the treatment process is to remove amorphous aggregates and
increase the crystallinity. Elimination of amorphous compounds, with the increase of
crystallinity index, is attributed to the ordered close packing of macromolecules of cellulose
in the fibers and strengthening of the hemp fibers.

The following table lists characteristics of individualized cellulose nanofibril samples
that are required to be measured or identified, measurement methods, and
instruments used.
Characteristics Measurement Methods Instrument
Morphology AFM SPM-9700HT
Width, height and length AFM SPM-9700HT
Optical transmittance UV-Vis spectrophotometry UV-2600, UV-1900 Download our
Surface functional types FT-IR IRTracer-100, IRSpirit “Application
Thermal stability TGA TGA-50 Notebook: Solutions
for Cellulose
Constituent sugar content HPLC Nexera Series Nanofiber” or
Acid-soluble metal content ICP, ICP-MS ICPE-9820, ICPMS-2030 request a printed
version using code
Crystal structure X-ray diffraction XRD-7000 C10G-E076.

Analytical & Testing Solutions for Industrial Hemp 7