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Wide Area Reversible Adhesive for In‐Space Assembly
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-06-17 , DOI: 10.1002/mame.202000006 Jacob L. Meyer 1 , Pixiang Lan 1 , Mete Bakir 2 , Iwona Jasiuk 2 , James Economy 1
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-06-17 , DOI: 10.1002/mame.202000006 Jacob L. Meyer 1 , Pixiang Lan 1 , Mete Bakir 2 , Iwona Jasiuk 2 , James Economy 1
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The design of future space structures may anticipate a greater need for in‐space assembly due to larger planned space structures and changes in mission profiles over their operational lifetimes. A rapid and reversible adhesive coating over the structure’s surface would allow additional components to be bonded at any arbitrary time in the future. A scalable wide‐area reversible adhesive utilizing a high glass transition thermoset polymer possessing thermally exchangeable bonds can serve as an enabling technology for in‐space assembly. Coatings of aromatic thermosetting copolyesters can be deposited on aluminum and titanium coupons, which bond when heated to 400 °C with the counterpart surfaces under pressure. Reversibility over multiple cycles is shown within a dynamic mechanical analyzer with the limiting constraint being the necessity of nondelaminatory (cohesive) debonding of the bonded coupons. Bonded coupons can sustain a thermal cycle spanning the representative temperatures in low earth orbit under tension with no failure. A localized rapid heating method amenable for in‐space assembly can be used to bond titanium coupons using induction heating with a bonding time of 40 s.
中文翻译：
用于室内组装的广域可逆胶粘剂
由于更大的计划空间结构以及在其使用年限内任务概况的变化，未来空间结构的设计可能会预料到对空间组装的更大需求。在结构表面上快速且可逆的粘合剂涂层将允许将来在任意时间结合其他组件。利用具有可热交换键合的高玻璃化转变热固性聚合物，可扩展的广域可逆粘合剂可以用作空间组装的辅助技术。芳族热固性共聚酯涂层可以沉积在铝和钛试片上，当加热到400°C时，它们与对应的表面在压力下结合。在动态机械分析仪中显示了多个循环的可逆性，其局限性是必须对粘合试样进行非脱层（粘合）脱胶。粘结的试样可以承受低张力下低地球轨道上代表温度的热循环而不会失效。适用于空间组装的局部快速加热方法可用于通过感应加热以40 s的粘合时间粘合钛试样。
更新日期：2020-07-16
中文翻译：
用于室内组装的广域可逆胶粘剂
由于更大的计划空间结构以及在其使用年限内任务概况的变化，未来空间结构的设计可能会预料到对空间组装的更大需求。在结构表面上快速且可逆的粘合剂涂层将允许将来在任意时间结合其他组件。利用具有可热交换键合的高玻璃化转变热固性聚合物，可扩展的广域可逆粘合剂可以用作空间组装的辅助技术。芳族热固性共聚酯涂层可以沉积在铝和钛试片上，当加热到400°C时，它们与对应的表面在压力下结合。在动态机械分析仪中显示了多个循环的可逆性，其局限性是必须对粘合试样进行非脱层（粘合）脱胶。粘结的试样可以承受低张力下低地球轨道上代表温度的热循环而不会失效。适用于空间组装的局部快速加热方法可用于通过感应加热以40 s的粘合时间粘合钛试样。
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