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Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment
Published on: March 18, 2021
Molecular Dynamics-Driven Structural Design of Styrene-Maleic Anhydride Copolymer Dispersants for Carbon Black in
Weiguang Song1, Chengcheng Wang1, Changsen Du2
1Key Lab of Sustainable Low-carbon Technologies for Textile Dyeing and Finishing, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi214122, China.
Abstract:
Solution dyeing of viscose fibers offers high efficiency and environmental benefits, yet achieving stable pigment dispersion remains challenging. Guided by molecular dynamics (MD) simulations, this study synthesized a comb-shaped multifunctional dispersant (SSMAA-g-MPEG) to optimize carbon black (CB) dispersion. The resulting SSMAA-g-MPEG/CB exhibited exceptional self-dispersibility with a uniform particle size (162 nm) and outstanding stability (exceeding 80%) in strongly alkaline viscose dopes, effectively preventing pigment agglomeration. Solution-dyed viscose fibers (SSMAA-g-MPEG/CB-VF) were subsequently fabricated via wet spinning. The fibers demonstrated a uniform, deep black color with high colorfastness (exceeding grade 4) and excellent mechanical properties, including a tensile strength of 285.6 MPa and an elongation at break of 68%. This study confirms that SSMAA-g-MPEG/CB is a highly promising material for solution dyeing, a reliable approach to the high-quality, green manufacturing of viscose fibers.
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