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基于炭黑的涂层配方:开发环保型导电纤维素纸的一种替代方案。

Coating Formulations Based on Carbon Black: An Alternative to Develop Environmentally Friendly Conductive Cellulose Paper.

作者信息

Millan Adriana, Morales Anny, Venditti Richard A, Pawlak Joel J

机构信息

Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, NC 27695-8005, USA.

出版信息

Materials (Basel). 2025 Jun 9;18(12):2708. doi: 10.3390/ma18122708.

Abstract

The current economic growth and increasing needs of society have led to developing processes that harm our environment and have severe long-term consequences. For this reason, different attempts have been made to mitigate these effects by substituting conventional toxic materials with environmentally friendly ones. Industry sectors related to energy storage, printed electronics, and wearable technology are moving towards applying sustainable strategies. Renewable biopolymers such as cellulose and its derivatives, as well as carbon-based alternatives, which include carbon nanotubes (CNTs), single-wall carbon nanotubes (SWCNTs), graphite, graphene, and carbon black (CB), are leading the advances in this field. The present research aimed to develop conductive cellulose paper using environmentally friendly components compatible with the paper recycling process. Coating formulations based on carbon black were proposed using three different types of binders: polytetrafluoroethylene (PTFE), latex (styrene butadiene), and sodium carboxymethyl cellulose (CMC). The formulation, composition, and preparation were studied, and they were related to the coating's electrical resistance and integrity. This last parameter was determined through a new method described in this research, implementing a mechanical/optical technique to measure the coating's durability. The formulation with the best performance in terms of electrical resistance (0.29 kΩ), integrity, and non-toxicity was obtained using sodium carboxymethyl cellulose (CMC) as a binder and dispersant.

摘要

当前的经济增长和社会需求的增加导致了一些危害环境并产生严重长期后果的发展过程。因此,人们已经进行了不同的尝试,通过用环保材料替代传统有毒材料来减轻这些影响。与能量存储、印刷电子和可穿戴技术相关的工业部门正在朝着应用可持续战略迈进。可再生生物聚合物,如纤维素及其衍生物,以及碳基替代品,包括碳纳米管(CNT)、单壁碳纳米管(SWCNT)、石墨、石墨烯和炭黑(CB),正在引领该领域的进展。本研究旨在使用与纸张回收过程兼容的环保成分开发导电纤维素纸。提出了基于炭黑的涂料配方,使用三种不同类型的粘合剂:聚四氟乙烯(PTFE)、乳胶(丁苯橡胶)和羧甲基纤维素钠(CMC)。对配方、组成和制备进行了研究,并将它们与涂层的电阻和完整性相关联。最后一个参数是通过本研究中描述的一种新方法确定的,该方法采用机械/光学技术来测量涂层的耐久性。使用羧甲基纤维素钠(CMC)作为粘合剂和分散剂,获得了在电阻(0.29 kΩ)、完整性和无毒方面性能最佳的配方。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/606f/12194713/d8f3d87dc80d/materials-18-02708-g001.jpg

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