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Fabrication and Properties of Self-crimp Side-by-Side Bicomponent Filaments Composed of Polyethylene Terephthalates with Different Intrinsic Viscosity Cover

Fabrication and Properties of Self-crimp Side-by-Side Bicomponent Filaments Composed of Polyethylene Terephthalates with Different Intrinsic Viscosity

Fibres & Textiles in Eastern Europe
Volume 30 (2022): Issue 2 (March 2022)
By: ,  ,  ,  ,   and    
Open Access
|May 2022
Figures & tables

Figures & Tables

Fig. 1

Cross-sections of self-crimp filaments: (a) side-by-side, (b) eccentric sheath-core

Table 1

Specifications of H-PET/L-PET SBSBFs

ComponentH- PET/L- PET
Specification110 dtex/34f
Volume Ratio70:3060:4050:5040:6030:70
Table 2

Spinning and drawing conditions

ItemsParameter
Temperature of extruder(°C)H-PET292/325/325
L-PET272/277/276
Spinning manifoldTemperature (°C)305
GR1 (Godet roller 1)Temperature (°C)85
Speed (m/min)2310
GR2 (Godet roller 2)Temperature (°C)125
Speed (m/min)4310
WR (Winding roller)Speed (m/min)4200
Fig. 2

Characteristics of H-PET and L-PET. (a) DSC curves (heating process of 1. L-PET and 2. H-PET, cooling process of 3. L-PET and 4. H-PET), (b) viscosity vs. shear rate curves

Fig. 3

Cross-section SEM images of bicomponent filaments with various H-PET:L-PET ratios. (a) 70:30, (b) 60:40, (c) 50:50, (d) 40:60, (e) 30:70, (f) H-PET: H-PET 50:50, (g) L-PET: L-PET 50:50).

Fig. 4

OM images of cross-sections (500×) of coloured H-PET/L-PET SBSBFs with various H-PET:L-PET ratios, where the black component is the high-viscosity component. (a) 70:30, (b) 50:50, (c) 30:70)

Fig. 5

Characteristics of H-PET/L-PET SBSBFs. (a) sonic orientation factor, (b) wide angle X-ray diffraction patterns, (c) DSC first heating curves, (d) mechanical properties

Table 3

Melt temperatures of H-PET/L-PET SBSBFs

H-PET/L-PETNeck melting peak/°CMain melting peak/°C
70:30252259
60:40253358
50:50256258
40:60255258
30:70257257
Fig. 6

Boiling water shrinkage of H- PET/L-PET SBSBFs

Fig. 7

Morphology of crimps of H-PET/L-PET SBSBFs. (a) model image, (b) OM image (500×), (c) physical image (25×)

Fig. 8

Images of curved H-PET/L-PET SBSBFs after being treated in boiling water with various H-PET:L-PET ratios. (a) 70:30, (b) 60:40, (c) 50:50, (d) 40:60, (e) 30:70)

Fig. 9

Crimp ratio, crimp moduli and crimp stability of H-PET/L-PET SBSBFs

DOI: https://doi.org/10.2478/ftee-2022-0009 | Journal eISSN: 2300-7354 | Journal ISSN: 1230-3666
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Language: English
Page range: 68 - 74
Published on: May 28, 2022
Published by: Łukasiewicz Research Network-Łódź Institute of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open
Keywords:
polyethylene terephthalate,
self-crimp,
side-by-side bicomponent filament,
mechanical properties,
shrinkage,
crimp properties
Related subjects:
Business and economics,
Business management,
Business informatics,
Process management,
Industrial chemistry,
Cellulose, paper and textiles,
Polymer science and technology,
Materials sciences,
Biomaterials and natural materials

© 2022 Guodong Xiang, Hongjing Hua, Qingwen Gao, Jingwen Guo, Xuzhen Zhang, Xiuhua Wang, published by Łukasiewicz Research Network-Łódź Institute of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 30 (2022): Issue 2 (March 2022)
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