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首页> 外文期刊>Applied Surface Science >Preparation of Phosphonic Acid Functionalized Graphene Oxide-modified Aluminum Powder with Enhanced Anticorrosive Properties
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Preparation of Phosphonic Acid Functionalized Graphene Oxide-modified Aluminum Powder with Enhanced Anticorrosive Properties

机译：具有增强防腐性能的膦酸官能化氧化石墨烯改性铝粉的制备

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摘要

To improve the anticorrosive performance of aluminum powder, a common functional filler in polymer coatings, we report a novel method to prepare graphene oxide modified aluminum powder (GO-Al) using 3-aminoproplyphosphoic acid as "link" agent. The GO nanosheets were firstly functionalized with 3-aminoproplyphosphoic acid (APSA) by the reaction of amine groups of APSA and the epoxy groups of GO. Subsequently, a layer of GO nanosheets uniformly and tightly covered the surface of flaky aluminum particle though the strong linking strength between -PO(OH)(2) functional groups of the modified GO and aluminum. The hydrogen evolution experiment suggests that the GO attached on the aluminum powder could effectively improve the anticorrosive performance of the pigments. (C) 2017 Published by Elsevier B.V.
机译：为了提高铝粉（聚合物涂料中常用的功能性填料）的防腐性能，我们报告了一种使用3-氨基丙磷酸作为“连接”剂的氧化石墨烯改性铝粉（GO-Al）的新颖方法。 GO纳米片首先通过3-氨基丙基磷酸（APSA）通过APSA的胺基与GO的环氧基反应而官能化。随后，尽管改性GO的-PO（OH）（2）官能团与铝之间具有很强的连接强度，但GO纳米片层均匀且紧密地覆盖了片状铝颗粒的表面。氢气析出实验表明，附着在铝粉上的GO可以有效改善颜料的防腐性能。 （C）2017由Elsevier B.V.发布

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