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首页> 外文期刊>International Journal Precision Engineering Manufacturing-Green Technology >Significant Adhesion Enhancement of Bioinspired Dry Adhesives by Simple Thermal Treatment
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Significant Adhesion Enhancement of Bioinspired Dry Adhesives by Simple Thermal Treatment

机译：通过简单的热处理显着提高生物启发性干胶的粘合力

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摘要

Bioinspired dry adhesives with micropillar arrays can be harnessed for precise and environment-friendly manufacturing. This study presents a simple and robust approach for developing synthetic dry adhesives with significantly enhanced adhesion strength without sophisticated structural modification or chemical surface treatment. We show that when dry adhesives with micropillar arrays are annealed at slightly elevated temperatures of 150-200 degrees C, their adhesion strengths are remarkably enhanced (maximum normal adhesion: 50.0 N cm(-2)) compared to those that are not treated thermally (normal adhesion: 17.6 N cm(-2)). The enhanced adhesion levels obtained by simple annealing surpass those of previously reported dry adhesives having nanoscale hairs with high aspect ratios or mushroom-like pillars with large tips. Experimental investigations regarding the chemical structure, surface roughness, surface energy, and elastic modulus of the dry adhesive samples indicate that the enhanced adhesion originates from the annealing-induced enhancement of the adhesive's elastic modulus
机译：具有微柱阵列的受生物启发的干式粘合剂可用于精确和环境友好的制造。这项研究提出了一种简单而稳健的方法来开发具有显着增强的粘合强度的合成干胶，而无需进行复杂的结构修改或化学表面处理。我们显示，与未热处理的胶粘剂相比，当微胶粘剂阵列的干胶在150-200摄氏度的稍高温度下退火时，其胶粘强度显着提高（最大正常胶粘力：50.0 N cm（-2））（正常附着力：17.6 N cm（-2））。通过简单退火获得的增强的粘合力水平超过了先前报道的具有高长宽比的纳米级毛发或具有大尖端的蘑菇状支柱的干粘合剂。关于干粘合剂样品的化学结构，表面粗糙度，表面能和弹性模量的实验研究表明，增强的粘合性源自退火引起的粘合剂弹性模量的增强

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