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Influence of polydimethylsiloxane on the microstructure and properties of polyester thermoplastic polyurethane

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Abstract

The effect of non-polar and non-hydrogen bonding hydroxybutane terminated polydimethylsiloxane (PDMS) on the microstructure and properties of polycaprolactone glycol (PCL) based thermoplastic polyurethane (TPU) was studied. All processes were based on the ontology method. FTIR, XRD, DSC and DMA were used to characterize the changes of microstructure, and the macroscopic properties were tested by mechanical, contact angle and flame retardancy testing. PDMS would increase the microphase separation, which made the system form a more detailed three-phase structure. PDMS would cause great damage to the mechanical properties, but the hydrophobicity and flame retardancy would be improved to varying degrees.

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Acknowledgements

This work was supported by the Natural Science Foundation of Shandong Province (project No.: ZR2020QE072); and the Qingdao Key R&D Program (project No.: 21-1-2-8-cl).

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Authors and Affiliations

  1. School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China

    Yongyin Cui, Hongwei Pan, Jiaping Zhang, Lan Cao & Chengzhong Zong

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  1. Yongyin Cui
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  2. Hongwei Pan
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  3. Jiaping Zhang
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  4. Lan Cao
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  5. Chengzhong Zong
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Correspondence to Chengzhong Zong.

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Cui, Y., Pan, H., Zhang, J. et al. Influence of polydimethylsiloxane on the microstructure and properties of polyester thermoplastic polyurethane. J Polym Res 29, 218 (2022). https://doi.org/10.1007/s10965-022-03079-2

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