摘要
以腰果酚改性酚醛胺为固化剂,将石墨烯掺杂到环氧树脂(E42)中制备了防腐涂料,并将其涂覆在预处理的基材马口铁上。对复合涂层的表面形貌、固化时间、光泽度、附着力、抗冲击性、硬度、柔韧性和防腐性能进行了测试。结果表明,腰果酚改性酚醛胺固化剂制备的涂层具有优异的力学性能和防腐性能,且随着石墨烯含量(以E42质量为基准,下同)的增加,涂层防腐性能提高。当腰果酚改性酚醛胺含量为25%,石墨烯含量为6%时,制备的涂层的平均厚度为(120±10)μm,硬度可达到2H,附着力达到0级,自腐蚀电流密度为8.482×10^(–6)A/cm^(2),腐蚀速率为6.593×10^(–2)mm/a。
Anticorrosive paints were prepared by mixing graphene doped epoxy resin(E42)with cardanol modified phenalkamine as curing agent and then were coated on the pretreated substrate tinplate.The surface morphology,curing time,gloss,adhesion,impact resistance,hardness,flexibility and corrosion resistance of the prepared anticorrosive coatings were tested.The results showed that the coatings prepared by cardanol modified phenalkamine achieved excellent mechanical properties and corrosion resistance.With the increase of graphene content(on the basis of the mass of E42,the same below),the anticorrosion resistance of the coating improved.When the contents of cardanol modified phenalkamine and graphene were 25%and 6%,the average thickness of the prepared coating was(120±10)μm,the hardness could reach 2 H,the adhesion could reach grade 0,the self-corrosive current density was 8.482×10^(-6)A/cm2,the corrosion rate was 6.593×10^(–2)mm/a.
作者
谭永松
朱俊荣
陈坤林
殷允杰
王潮霞
TAN Yongsong;ZHU Junrong;CHEN Kunlin;YIN Yunjie;WANG Chaoxia(Smart Textile Chemicals Laborator,College of Textile Science and Engineering,Jiangnan University,Wuxi 214122,Jiangsu,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2021年第1期78-82,共5页
Fine Chemicals
基金
国家重点研发计划(2018YFC0810304)。
关键词
环氧树脂
腰果酚改性酚醛胺
石墨烯
力学性能
防腐性能
功能材料
epoxy resin
cardanol modified phenalkamine
graphene
mechanical properties
corrosion resistance
functional materials
