Iron oxide nanoparticles for magnetically-triggered healing of bituminous materials
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- 作者：Etienne Jeoffroya ; b ; Dimitrios Koulialiasc ; Songhak Yoona ; Manfred N. Partla ; d ; manfred.partl@empa.ch" class="auth_mail" title="E-mail the corresponding author ; André ; R. Studartb ; andre.studart@mat.ethz.ch" class="auth_mail" title="E-mail the corresponding author
- 关键词：Crack healing ; Magnetic nanoparticles ; Bitumen ; Bituminous materials ; Magnetic field ; Dynamic polymers
- 刊名：Construction and Building Materials
- 出版年：2016
- 出版时间：1 June 2016
- 年：2016
- 卷：112
- 期：Complete
- 页码：497-505
- 全文大小：2000 K
文摘
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Iron oxide nanoparticles can rapidly heat bitumen through magnetic hyperthermia.
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Heating generated by the nanoparticles decreases the bitumen viscosity.
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Low bitumen viscosities allow for effective closure of micro-cracks.
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A nanoparticle crystallite size of 50 nm exhibits highest magnetic hysteresis losses.
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High hysteresis losses enables healing within only a few seconds.