Separation of Different Resin Plates Bonded by Solvent Through a Wire Explosion Induced by Pulsed Discharge
Separation of Different Resin Plates Bonded by Solvent Through a Wire Explosion Induced by Pulsed Discharge
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DOI：
10.1109/tdei.2022.3217437
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发表时间：
2023-02
影响因子：
3.1
通讯作者：
Yoshiki Egawa;T. Koita;Soowon Lim;T. Namihira;C. Tokoro
中科院分区：
文献类型：
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作者：
Yoshiki Egawa;T. Koita;Soowon Lim;T. Namihira;C. Tokoro
加快塑料的资源回收利用，创建循环型社会，需要开发用于许多产品的树脂粘合剂的高效回收技术。我们报告了应用电脉冲引发的细丝爆炸来选择性分离不同的树脂粘附体。将溶剂二氯甲烷与银线一起施加到丙烯酸板和聚碳酸酯板的界面。脉冲放电电路将电脉冲施加到细金属丝上，从而使金属丝爆炸。在2.4 μ F的电容和5.5 kV的充电电压下，没有发生不同树脂材料的分离。阴影图可视化显示，当施加20 kV的充电电压时，由于气体膨胀，在结合的树脂材料的界面处发生分离，这是由爆炸细线的蒸发引起的。电热模拟表明，当在20 kV的充电电压下施加电脉冲时，银线内的温度达到银的沸点，这表明银线在静电力的作用下熔化并蒸发，导致银线膨胀。在使用电脉冲在它们的界面处分离不同的树脂粘附体方面，有效的是将细线放置在粘附表面上，接合树脂材料，并且通过施加电脉冲，在线中产生焦耳热，使线中的气体膨胀，并且使线蒸发。
Accelerating the resource recycling of plastics and creating a recycling-oriented society require the development of efficient recycling technology for resin adhesives used in many products. We report the application of a fine wire explosion induced by an electric pulse to the selective separation of different resin adherends. Methylene dichloride, a solvent, was applied to the interface of an acrylic plate and polycarbonate plate together with a silver wire. A pulsed discharge circuit applied electric pulses to the fine wire and thus exploded the wire. At a capacitance of $2.4~\mu \text{F}$ and charging voltage of 5.5 kV, no separation of different resin materials occurred. Shadowgraph visualization revealed that when a charging voltage of 20 kV was applied, separation at the interface of the bonded resin materials occurred due to gas expansion, resulting from vaporization of the exploding fine wire. Electrothermal simulation showed that the temperature within the silver wire reached the boiling point of silver when electric pulses were applied at a charging voltage of 20 kV, suggesting that the silver wire melted and evaporated under the effect of an electrothermal force, causing the silver wire to expand. In terms of separating different resin adherends at their interface using an electric pulse, it is effective to place a fine wire on the adhesive surface, bond the resin materials, and, through applying an electric pulse, generate Joule heat in the wire, expand gas in the wire, and vaporize the wire.