Design of Acrylate-Terminated Polyurethane for Nylon Seamless Bonding Fabric Part I: Design of the End-Capping Thermoplastic Polyurethane Adhesive with Acrylate Copolymer
Abstract:This series of studies aims to design acrylate-terminated polyurethanes for use in nylon seamless bonded fabrics. The first part used N,N-dimethylacrylamide (DMAA) and methyl methacrylate (MMA) to replace the chain extender in polyurethane synthesis as end-capping agent to synthesize thermoplastic polyurethane (TPU) adhesive. The molecular weight of the TPU is controlled to further influence the mechanical and processing properties of the polyurethane. Here, polytetramethylene ether glycol (PTMG) and 4,4-methy… Show more
“…The thermal properties of HS-TPAEs were found to be 25 °C higher than that of Spandex®, which is a commonly used elastic filament for textiles, indicating that the HS-TPAE-based filaments may possess greater thermal stability. 30 Besides, a slight increase in the T mHS of HS-TPAEs was observed as the soft segment content increased, a phenomenon previously reported for LS-TPAEs and polyurethane exhibiting high hard segment content. Similarly, the higher T mHS of HS-TPAEs with larger C SS can be attributed to their higher degree of phase separation resulting from the dilution of soft segments to hard segments during cooling.…”
The melt polymerization of polyamide 6 (PA6)-based thermoplastic elastomers with high-content and high-molecular-weight soft segments (HS-TPAEs) has posed a long-standing challenge, rendering them unsuitable for filament presentation in textiles.
“…The thermal properties of HS-TPAEs were found to be 25 °C higher than that of Spandex®, which is a commonly used elastic filament for textiles, indicating that the HS-TPAE-based filaments may possess greater thermal stability. 30 Besides, a slight increase in the T mHS of HS-TPAEs was observed as the soft segment content increased, a phenomenon previously reported for LS-TPAEs and polyurethane exhibiting high hard segment content. Similarly, the higher T mHS of HS-TPAEs with larger C SS can be attributed to their higher degree of phase separation resulting from the dilution of soft segments to hard segments during cooling.…”
The melt polymerization of polyamide 6 (PA6)-based thermoplastic elastomers with high-content and high-molecular-weight soft segments (HS-TPAEs) has posed a long-standing challenge, rendering them unsuitable for filament presentation in textiles.
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