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A Thermosetting Polyurethane with Excellent Self‐Healing Properties and Stability for Metal Surface Coating
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-09-28 , DOI: 10.1002/macp.202000273 Heng Xu 1 , Jing Tu 1 , Guifeng Xiang 1 , Yang Zhang 1 , Xiaode Guo 1
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-09-28 , DOI: 10.1002/macp.202000273 Heng Xu 1 , Jing Tu 1 , Guifeng Xiang 1 , Yang Zhang 1 , Xiaode Guo 1
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Self‐healing performance of materials can greatly improve the life of materials and reduce their maintenance costs. Therefore, preparation of self‐healing coating materials is expected to be the development trend of coating materials. In this paper, thermosetting polyurethane material (HTPB‐PG‐SS‐TDI) is designed with excellent mechanical performance, thermal stability, acid–base resistance property, and self‐healing capability by introducing SS (4,4‐dihydroxy diphenyl dithioether) into thermosetting polyurethane chain. Maximum stress of the polyurethane is up to 2.65 MPa, Maximum strain can reach 700%. Self‐healing efficiency of stress can reach above 95%, and it also has efficient function of healing scratch, self‐healing efficiency of scratch is excellent. The polyurethane material is applied to the metal surface coating, which has remarkable self‐healing function to the scratches on the metal surface and significant acid–base resistance. It can be applied to metal surface protection to provide guidance for future research on infrastructure surface coating.
中文翻译：
具有优异的自修复性能和稳定性的热固性聚氨酯，用于金属表面涂层
材料的自愈性能可以大大延长材料的使用寿命并降低其维护成本。因此，自愈涂料的制备有望成为涂料的发展趋势。本文通过将SS（4,4-二羟基二苯基二硫醚）引入到热固性聚氨酯材料（HTPB-PG-SS-TDI）中来设计具有出色的机械性能，热稳定性，耐酸碱性和自修复能力。热固性聚氨酯链。聚氨酯的最大应力高达2.65 MPa，最大应变可达到700％。应力的自我修复效率可以达到95％以上，并且还具有有效的划痕修复功能，挠曲的自我修复效率非常好。聚氨酯材料应用于金属表面涂层，对金属表面的划痕具有显着的自我修复功能，并具有显着的耐酸碱性。它可用于金属表面保护，为基础设施表面涂层的未来研究提供指导。
更新日期：2020-10-19
中文翻译：
具有优异的自修复性能和稳定性的热固性聚氨酯，用于金属表面涂层
材料的自愈性能可以大大延长材料的使用寿命并降低其维护成本。因此，自愈涂料的制备有望成为涂料的发展趋势。本文通过将SS（4,4-二羟基二苯基二硫醚）引入到热固性聚氨酯材料（HTPB-PG-SS-TDI）中来设计具有出色的机械性能，热稳定性，耐酸碱性和自修复能力。热固性聚氨酯链。聚氨酯的最大应力高达2.65 MPa，最大应变可达到700％。应力的自我修复效率可以达到95％以上，并且还具有有效的划痕修复功能，挠曲的自我修复效率非常好。聚氨酯材料应用于金属表面涂层，对金属表面的划痕具有显着的自我修复功能，并具有显着的耐酸碱性。它可用于金属表面保护，为基础设施表面涂层的未来研究提供指导。
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