点击次数：

论文类型：期刊论文

发表时间：2019-04-01

发表刊物：MATERIALS LETTERS

收录刊物：SCIE、EI

卷号：240

页面范围：262-266

ISSN号：0167-577X

关键字：Graphene; Functionalization; Composite materials; Corrosion; LEIS

摘要：Graphene functionalization helps to improve the barrier property of graphene-reinforced coatings, however, it may also increase the electrical conductivity of coatings and result in galvanic corrosion between coating and metal. To demonstrate that fine-tuned functionalization of graphene is vital for its applications in metal protection, reduced graphene oxide (rGO) with various functionalization degree was precisely prepared. Compared with pristine rGO, rGO with a low functionalization degree possesses an enhanced corrosion promotion activity (CPA), and rGO with a high functionalization degree exhibits an inhibited CPA. Critical functionalization degree for inhibiting the CPA of rGO/epoxy nanocomposite coatings was determined. (C) 2019 Elsevier B.V. All rights reserved.