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Phenol-Derived Carbon Sealant Inspired by a Coalification Process.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-11-25 , DOI: 10.1002/anie.201913181 Yunhan Lee 1 , Kiwoo Jun 2 , Kyueui Lee 1 , Young Chang Seo 1 , Changyoung Jeong 3 , Munja Kim 3 , Il-Kwon Oh 2 , Haeshin Lee 1
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-11-25 , DOI: 10.1002/anie.201913181 Yunhan Lee 1 , Kiwoo Jun 2 , Kyueui Lee 1 , Young Chang Seo 1 , Changyoung Jeong 3 , Munja Kim 3 , Il-Kwon Oh 2 , Haeshin Lee 1
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Recently, emerging functions utilizing phenolic molecules, such as surface functionalizing agents or bioadhesives, have attracted significant interest. However, the most important role of phenolic compounds is to produce carbonized plant matter called "coal", which is widely used as an energy source in nearly all countries. Coalification is a long-term, high-temperature process in which phenols are converted into conducting carbonized matter. This study focuses on mimicking coalification processes to create conducting sealants from non-conducting phenolic compounds by heat treatment. We demonstrate that a phenolic adhesive, tri-hydroxybenzene (known as pyrogallol), and polyethylenimine mixture initially acts as an adhesive sealant that can be converted to a conducting carbon sealing material. The conductivity of the phenolic sealant is about 850 Ω-1 cm-1 , which is an approximately two-fold enhancement of the performance of carbon matter. Applications of the biomimetic adhesives described herein include conducting defect sealants in carbon nanomaterials and conducting binders for metal/carbon or ceramic/carbon composites.
中文翻译：
受碳化过程启发而衍生的苯酚碳密封剂。
近来，利用酚类分子的新兴功能，例如表面官能化剂或生物粘合剂，引起了人们的极大兴趣。但是，酚类化合物最重要的作用是生产碳化的植物物质，称为“煤”，几乎在所有国家中，该物质被广泛用作能源。碳化是一个长期的高温过程，其中酚被转化为导电的碳化物。这项研究的重点是模仿碳化过程，通过热处理从不导电的酚类化合物中产生导电密封胶。我们证明了酚醛粘合剂，三羟基苯（称为邻苯三酚）和聚乙烯亚胺混合物最初起粘合剂密封剂的作用，可以转变为导电的碳密封材料。酚醛密封胶的电导率约为850Ω-1cm-1，这是碳素性能的大约两倍。本文所述的仿生粘合剂的应用包括在碳纳米材料中传导缺陷密封剂和用于金属/碳或陶瓷/碳复合材料的粘合剂。
更新日期：2020-01-23
中文翻译：
受碳化过程启发而衍生的苯酚碳密封剂。
近来，利用酚类分子的新兴功能，例如表面官能化剂或生物粘合剂，引起了人们的极大兴趣。但是，酚类化合物最重要的作用是生产碳化的植物物质，称为“煤”，几乎在所有国家中，该物质被广泛用作能源。碳化是一个长期的高温过程，其中酚被转化为导电的碳化物。这项研究的重点是模仿碳化过程，通过热处理从不导电的酚类化合物中产生导电密封胶。我们证明了酚醛粘合剂，三羟基苯（称为邻苯三酚）和聚乙烯亚胺混合物最初起粘合剂密封剂的作用，可以转变为导电的碳密封材料。酚醛密封胶的电导率约为850Ω-1cm-1，这是碳素性能的大约两倍。本文所述的仿生粘合剂的应用包括在碳纳米材料中传导缺陷密封剂和用于金属/碳或陶瓷/碳复合材料的粘合剂。
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