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Chemical functionalization of polyamide 6.6 fabrics.

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Title: Chemical functionalization of polyamide 6.6 fabrics.
Authors: Kisner, Alexandre1,2, Rainert, Karine Thaise1, Ferrari, Fernanda1, Nau, Carla Tatiana1, Barcellos, Ivonete Oliveira1, Pezzin, Sérgio Henrique3, Andreaus, Jürgen1 jandr@furb.br
Source: Reactive & Functional Polymers. Oct2013, Vol. 73 Issue 10, p1349-1356. 8p.
Subjects: Polyamide fibers, Adipic acid, Hexamethylenediamine, Synthetic fibers, Clothing & dress, Hydrophobic interactions, Surface structure
Abstract: Abstract: Polyamide 6.6 (PA 6.6) fibers, produced from adipic acid and hexamethylenediamine, are among the most consumed synthetic textile fibers used for garments. Fibers are hydrophobic, which makes dyeing difficult and affects wearing comfort. In the present work, chemical treatments of PA 6.6 fibers were carried out and compared with respect to their effect on fiber properties and obtained surface modifications. Scoured knitted PA 6.6 fabrics (opaque) were treated with hydrochloric acid (0–3M) and sodium hydroxide (3M) for up to 3h at 60°C. The fibers were characterized with respect to bulk and surface modifications such as amino and carboxyl end groups, superficial dyeing below the TG of the fiber, surface structure with SEM and AFM analysis. Furthermore a new analytic procedure for the determination of surface amino groups was tested. Both chemical treatments resulted in a significant increase in the amount of amino groups on the fiber, but especially the treatment with HCl 3M caused a more drastic surface modification of the fibers, however, not only restricted to the fiber surface. AFM and SEM analysis have shown a significant change in surface roughness on the nanoscale, which in addition to the creation of surface functional groups increases the fiber’s hydrophilicity and reactivity. [Copyright &y& Elsevier]
Copyright of Reactive & Functional Polymers is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 89997541
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Chemical functionalization of polyamide 6.6 fabrics.
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  Data: <searchLink fieldCode="AR" term="%22Kisner%2C+Alexandre%22">Kisner, Alexandre</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rainert%2C+Karine+Thaise%22">Rainert, Karine Thaise</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ferrari%2C+Fernanda%22">Ferrari, Fernanda</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nau%2C+Carla+Tatiana%22">Nau, Carla Tatiana</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Barcellos%2C+Ivonete+Oliveira%22">Barcellos, Ivonete Oliveira</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pezzin%2C+Sérgio+Henrique%22">Pezzin, Sérgio Henrique</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Andreaus%2C+Jürgen%22">Andreaus, Jürgen</searchLink><relatesTo>1</relatesTo><i> jandr@furb.br</i>
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  Data: <searchLink fieldCode="JN" term="%22Reactive+%26+Functional+Polymers%22">Reactive & Functional Polymers</searchLink>. Oct2013, Vol. 73 Issue 10, p1349-1356. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Polyamide+fibers%22">Polyamide fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Adipic+acid%22">Adipic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Hexamethylenediamine%22">Hexamethylenediamine</searchLink><br /><searchLink fieldCode="DE" term="%22Synthetic+fibers%22">Synthetic fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Clothing+%26+dress%22">Clothing & dress</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+interactions%22">Hydrophobic interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+structure%22">Surface structure</searchLink>
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  Data: Abstract: Polyamide 6.6 (PA 6.6) fibers, produced from adipic acid and hexamethylenediamine, are among the most consumed synthetic textile fibers used for garments. Fibers are hydrophobic, which makes dyeing difficult and affects wearing comfort. In the present work, chemical treatments of PA 6.6 fibers were carried out and compared with respect to their effect on fiber properties and obtained surface modifications. Scoured knitted PA 6.6 fabrics (opaque) were treated with hydrochloric acid (0–3M) and sodium hydroxide (3M) for up to 3h at 60°C. The fibers were characterized with respect to bulk and surface modifications such as amino and carboxyl end groups, superficial dyeing below the TG of the fiber, surface structure with SEM and AFM analysis. Furthermore a new analytic procedure for the determination of surface amino groups was tested. Both chemical treatments resulted in a significant increase in the amount of amino groups on the fiber, but especially the treatment with HCl 3M caused a more drastic surface modification of the fibers, however, not only restricted to the fiber surface. AFM and SEM analysis have shown a significant change in surface roughness on the nanoscale, which in addition to the creation of surface functional groups increases the fiber’s hydrophilicity and reactivity. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Reactive & Functional Polymers is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.reactfunctpolym.2013.03.010
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 1349
    Subjects:
      – SubjectFull: Polyamide fibers
        Type: general
      – SubjectFull: Adipic acid
        Type: general
      – SubjectFull: Hexamethylenediamine
        Type: general
      – SubjectFull: Synthetic fibers
        Type: general
      – SubjectFull: Clothing & dress
        Type: general
      – SubjectFull: Hydrophobic interactions
        Type: general
      – SubjectFull: Surface structure
        Type: general
    Titles:
      – TitleFull: Chemical functionalization of polyamide 6.6 fabrics.
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            NameFull: Rainert, Karine Thaise
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            NameFull: Ferrari, Fernanda
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            NameFull: Nau, Carla Tatiana
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            NameFull: Barcellos, Ivonete Oliveira
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            – D: 01
              M: 10
              Text: Oct2013
              Type: published
              Y: 2013
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              Value: 73
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