Preparation and Properties of Polyurethane with Self-Healing Function by Solvent-Free Method 


Vol. 24,  No. 6, pp. 1903-1918, Jun.  2023
10.1007/s12221-023-00191-y


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  Abstract

Self-healing polyurethane materials with excellent mechanical properties have a wide range of applications, including textiles, clothing, leather, and flexible electronics. However, determining methods to obtain this material in green and environmentfriendly ways is an interesting and challenging task. In this study, a series of self-healing polyurethane materials with soft segments containing diselenide bonds and hard segments including multiple hydrogen bonds were prepared using a solventfree method. The characterization results demonstrated that the T–Se–SFPU–2 sample exhibited both favorable self-healing function as well as mechanical properties with a tensile breaking strength of 6.15 MPa, and the greatest healing effect was achieved after 6 h at room temperature under visible light. The research results further demonstrated that the hydrogen bond in the hard segment can considerably improve the mechanical properties of polyurethane. The best micro-phase separation was achieved by controlling the hydrogen bond content in the hard segment, achieving a force balance between the soft and hard segments, and finally, the optimal balance between the self-healing performance and mechanical strength of polyurethane was achieved. These results provide a new strategy for preparing polymers with different self-healing capabilities.

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  Cite this article

[IEEE Style]

Q. Tian, Z. Huang, L. Wang, L. Shi, L. Shen, D. Qi, "Preparation and Properties of Polyurethane with Self-Healing Function by Solvent-Free Method," Fibers and Polymers, vol. 24, no. 6, pp. 1903-1918, 2023. DOI: 10.1007/s12221-023-00191-y.

[ACM Style]

Qianjun Tian, Zhichao Huang, Lin Wang, Lei Shi, Liangen Shen, and Dongming Qi. 2023. Preparation and Properties of Polyurethane with Self-Healing Function by Solvent-Free Method. Fibers and Polymers, 24, 6, (2023), 1903-1918. DOI: 10.1007/s12221-023-00191-y.

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