Academic thesis

Katja Bolz: Thread-by-thread tear mending on linen fabric with the methylcellulose Benecel™ A4C Back
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Overview:  
 
Drawing of the tear mending procedure with the cellulose ethers. Shown arethe 12 threads per test piece, the adhesive is shown in blue.
   

Coefficients of variation of the recorded maximum tensile loads for the five test lines.
Abstract: The topic of this thesis was the choice of adhesive used for the thread-by-thread tear mending method. So far, cellulose ethers have rarely been considered for such. The aim was to investigate the extent to which Benecel™ A4C is a suitable adhesive. Hannah Flock´s findings from 2020 were the basis for the uniaxial tensile test set-up used. Strips of uncoated linen fabric were mended using Benecel™ A4C in 5, 10 and 12% concentration. The mending with a mixture of 20% sturgeon glue and 13% wheat starch paste (1+1 weighed parts) served as a reference. During the testing, the maximum tensile loads and strain were recorded.
Benecel™ A4C 12% is not suitable for thread-by-thread tear mending. For one, because of hardships in the execution but mostly due to poor adhesive strength. The 5 and 10% Benecel´s show potential but record weaker tensile loads on average than the sturgeon glue mixture. However, both test sequences show a large dispersion. Therefore, more tests are required to form a definite conclusion.

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Keywords: adhesives, sturgeon glue, wheatpaste, micro-dosing device, tensile tests, maximum tensile load, tensile strain
 
Average maximum tensile loads of the different adhesives with standard deviation.
Details:
  • academic institution: HAWK Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen
  • kind of theses:  Bachelorarbeit
  • main Tutor:  Prof. Dipl. Rest. Renate Kühnen
  • assistant Tutor:  Dipl.-Rest. Iris Herpers
  • date:  2025
  • Language:  German
  • pages:  97
  • pictures:  3
 
Contact:
 
Katja Bolz
katjaSbolz@[Diesen Teil loeschen]gmail.com

 
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Creative Commons Lizenzvertrag This work is licensed under a Creative Commons BY-NC-ND 3.0 Germany License.
DOI (Digital Object Identifier) 10.5165/hawk/553
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