Shape Memory Effects Using Magnetoactive Boron−Organo−Silicon Oxide Polymers,Macromolecular Chemistry and Physics

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Shape Memory Effects Using Magnetoactive Boron−Organo−Silicon Oxide Polymers
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-07-08 , DOI: 10.1002/macp.202000149
Nina Prem ₁ , Dirk Sindersberger ₁ , Birgit Striegl ₂ , Valter Böhm ₃ , Gareth J. Monkman ₁

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Thermomechanical shape memory materials have certain disadvantages when it comes to 3D volumetric reproduction intended for rapid prototyping or robotic prehension. The need to constantly supply energy to counteract elastic retraction forces in order to maintain the required geometry, together with the inability to achieve conformal stability at elevated temperatures, limits the application of thermal shape memory polymers. Form removal also presents problems as most viscoelastic materials do not ensure demolding stability. This work demonstrates how magnetoactive boron−organo−silicon oxide polymers under the influence of an applied magnetic field can be used to achieve energy free sustainable volumetric shape memory effects over extended periods. The rheopectic properties of boron−organo−silicon oxide materials sustain form removal without mold distortion.

中文翻译：

使用磁活性硼-有机-氧化硅聚合物的形状记忆效应

热力学形状记忆材料在用于快速原型制作或机器人理解的3D体积复制中具有某些缺点。为了保持所需的几何形状而不断提供能量以抵消弹性收缩力的需要，以及在高温下无法实现保形稳定性的要求，限制了热形记忆聚合物的应用。由于大多数粘弹性材料不能确保脱模稳定性，因此脱模也存在问题。这项工作证明了在施加磁场的影响下，磁活性硼-有机-氧化硅聚合物如何可以用于在更长的时间内实现无能量的可持续体积形状记忆效应。

更新日期：2020-07-08

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