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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: Guodong Xiang,  Hongjing Hua,  Qingwen Gao,  Jingwen Guo,  Xuzhen Zhang and  Xiuhua Wang  
Open Access
|May 2022

Figures & Tables

Fig. 1

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

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
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).
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)
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
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

Fig. 6

Boiling water shrinkage of H- PET/L-PET SBSBFs
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×)
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)
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
Crimp ratio, crimp moduli and crimp stability of H-PET/L-PET SBSBFs

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

Specifications of H-PET/L-PET SBSBFs

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

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
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, Institute of Biopolymers and Chemical Fibres
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, Institute of Biopolymers and Chemical Fibres
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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