Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid

This work reports a modification of a fibrous cellulose material (paper) by the addition of polyacrylonitrile (PAN) fibres doped with 10,12–pentacosadiynoic acid (PDA). The fibres are sensitive to ultraviolet (UV) light. When the paper containing PAN–PDA is irradiated with UV light it changes colour...

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Main Authors: Elżbieta Sąsiadek, Konrad Olejnik, Marek Kozicki
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/14/4006
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author Elżbieta Sąsiadek
Konrad Olejnik
Marek Kozicki
author_facet Elżbieta Sąsiadek
Konrad Olejnik
Marek Kozicki
author_sort Elżbieta Sąsiadek
collection DOAJ
description This work reports a modification of a fibrous cellulose material (paper) by the addition of polyacrylonitrile (PAN) fibres doped with 10,12–pentacosadiynoic acid (PDA). The fibres are sensitive to ultraviolet (UV) light. When the paper containing PAN–PDA is irradiated with UV light it changes colour to blue as a consequence of interaction of the light with PDA. The colour intensity is related to the absorbed dose, content of PAN–PDA fibres in the paper and the wavelength of UV radiation. The features of the paper are summarised after reflectance spectrophotometry and scanning microscopy analyses. All the properties of the modified paper were tested in accordance with adequate ISO standards. Moreover, a unique method for assessing the unevenness of the paper surface and the quality of printing was proposed by using a Python script (RGBreader) for the analysis of RGB colour channels. The modification applied to the paper can serve as a paper security system. The modified paper can act also as a UV radiation indicator.
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spelling doaj.art-85556f50922c428fa9016aaa140334d32023-11-22T04:18:15ZengMDPI AGMaterials1996-19442021-07-011414400610.3390/ma14144006Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic AcidElżbieta Sąsiadek0Konrad Olejnik1Marek Kozicki2Department of Mechanical Engineering, Informatics and Chemistry of Polymer Materials, Lodz University of Technology, 90–543 Lodz, PolandCentre of Papermaking and Printing, Lodz University of Technology, 93–005 Lodz, PolandDepartment of Mechanical Engineering, Informatics and Chemistry of Polymer Materials, Lodz University of Technology, 90–543 Lodz, PolandThis work reports a modification of a fibrous cellulose material (paper) by the addition of polyacrylonitrile (PAN) fibres doped with 10,12–pentacosadiynoic acid (PDA). The fibres are sensitive to ultraviolet (UV) light. When the paper containing PAN–PDA is irradiated with UV light it changes colour to blue as a consequence of interaction of the light with PDA. The colour intensity is related to the absorbed dose, content of PAN–PDA fibres in the paper and the wavelength of UV radiation. The features of the paper are summarised after reflectance spectrophotometry and scanning microscopy analyses. All the properties of the modified paper were tested in accordance with adequate ISO standards. Moreover, a unique method for assessing the unevenness of the paper surface and the quality of printing was proposed by using a Python script (RGBreader) for the analysis of RGB colour channels. The modification applied to the paper can serve as a paper security system. The modified paper can act also as a UV radiation indicator.https://www.mdpi.com/1996-1944/14/14/4006functionalized cellulosic materialpaperultraviolet radiation sensorsecurity systemsecurity fibresmodified polyacrylonitrile fibres
spellingShingle Elżbieta Sąsiadek
Konrad Olejnik
Marek Kozicki
Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid
Materials
functionalized cellulosic material
paper
ultraviolet radiation sensor
security system
security fibres
modified polyacrylonitrile fibres
title Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid
title_full Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid
title_fullStr Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid
title_full_unstemmed Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid
title_short Paper Doped with Polyacrylonitrile Fibres Modified with 10,12–Pentacosadiynoic Acid
title_sort paper doped with polyacrylonitrile fibres modified with 10 12 pentacosadiynoic acid
topic functionalized cellulosic material
paper
ultraviolet radiation sensor
security system
security fibres
modified polyacrylonitrile fibres
url https://www.mdpi.com/1996-1944/14/14/4006
work_keys_str_mv AT elzbietasasiadek paperdopedwithpolyacrylonitrilefibresmodifiedwith1012pentacosadiynoicacid
AT konradolejnik paperdopedwithpolyacrylonitrilefibresmodifiedwith1012pentacosadiynoicacid
AT marekkozicki paperdopedwithpolyacrylonitrilefibresmodifiedwith1012pentacosadiynoicacid