Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 204, Issue -, Pages 500-509Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.02.021
Keywords
Corn starch; Adhesion; Property
Funding
- Natural Science Foun-dation of Anhui Province [1908085ME124]
- Open Project Program of Anhui Engineering and Technology Research Center of Textile, Anhui Province College of Anhui Province College Key Laboratory of Textile Fabrics [2021AETKL17]
- Youth Talent Training Program for Anhui Polytechnic University [FKLTFM2007]
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials
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The influence of quaternization and butyrylation on the sizing properties of biological starch macromolecule was evaluated. The results showed that the modified starch, known as quaternized-butyrylated starch (QBS), exhibited improved bonding strength, elongation, paste stability, and desizing efficiency compared to acid-thinned starch (ATS) and quaternized starch (QS).
The influence of the quaternization and butyrylation on the sizing properties of biological starch macromolecule was evaluated for acquiring a new starch bio-based size [quaternized-butyrylated starch (QBS)]. The sizing properties of granular QBS samples were investigated in comparison with acid-thinned starch (ATS) and quaternized starch (QS). The QBS samples with a DS range of 0.029-0.0779 exhibited bonding strengths of 17.0-18.3 cN/tex to cotton fibers [15.5 cN/tex (ATS, DS = 0) and 16.6 cN/tex (QS, DS = 0.0240)] and 31.0-34.3 cN/tex to polyester fibers [28.0 cN/tex (ATS) and 30.1 cN/tex (QS)], and their films showed breaking elongations of 2.99-3.51% [2.59% (ATS) and 2.81% (QS)] and tensile strengths of 36.5-32.1 MPa [38.1 MPa (ATS) and 37.3 MPa (QS)]. Compared with QS, significantly increased bonding strengths as well as obviously decreased strengths and increased elongations of the films for the QBS samples with the total DS & GE; 0.0635 were exhibited. As increasing the modification levels from 0.029 to 0.0779, QBS presented paste stabilities from 90.4% to 85.7% which met with the requirement in warp sizing, and displayed higher desizing efficiencies (93.2-93.8%) than ATS (91.5%) and QS (90.2%). Based on these results, the amphiphilic quaternization-butyrylation was a good means for starch to acquire good sizing properties.
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