【摘 要】
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In this paper,a novel dual-activate hard segment strategy is proposed for the fabrication of polydimethylsiloxane(PDMS)based supramolecular polymer(PDMS-PDITC-I
【机 构】
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Tianjin Key Laboratory of Composite and Functional Materials,School of Materials Science and Enginee
论文部分内容阅读
In this paper,a novel dual-activate hard segment strategy is proposed for the fabrication of polydimethylsiloxane(PDMS)based supramolecular polymer(PDMS-PDITC-IPDI).The unique design endows the PDMS-PDITC-IPDI with high toughness(43.1-24.5 MJ/m3),tensile strength(11.3-6.6 MPa)and elongation at break(730％-615％),and the mechanical properties and dynamic property can be regulated by varying degrees of hard segment activation.Moreover,the PDMS-PDITC-IPDI polymers exhibit excellent self-recovery property during successive loading-unloading processes.Additionally,both wettability damage caused by O2 plasma treatment and mechanical damage can be healed by simple heating,showing good hydrophobic recovery and self-healability.Taking advantages of merits of the PDMS-PDITC-IPDI,the applications of the material as recyclable adhesive and 3D printing material are also investigated.
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