低黏度无溶剂环氧石墨烯玻璃鳞片涂料的研制  

Development of Low-viscosity Solvent-free Graphene/Glass Flake Based Epoxy Coatings

作　　者：王小牧 雍涛 王雷 靳生红 苏岳雄 肖菲 张安杰 王瑞 颜冰 WANG Xiaomu;YONG Tao;WANG Lei;JIN Shenghong;SU Yuexiong;XIAO Fei;ZHANG Anjie;WANG Rui;YAN Bing(Northwest Yongxin Coatings Co.,Ltd.,Lanzhou 730046,China;Northwest Minzu University,Lanzhou 730000,China)

机构地区：[1]西北永新涂料有限公司,兰州730046 [2]西北民族大学,兰州730000

出　　处：《涂料工业》2024年第8期53-58,64,共7页Paint & Coatings Industry

基　　金：中央引导地方科技发展资金项目(22ZY2QA006);兰州市科技支撑项目(2023-3-97);甘肃省科技专员专项(23CX⁃GA0016)。

摘　　要：针对现有环氧石墨烯玻璃鳞片涂料环境污染大、防腐性能周期短、漆膜柔韧性差、不能采用传统喷涂施工工艺等问题,以长碳链羰基化合物功能增韧树脂与低相对分子质量的液体双酚A环氧树脂作为成膜物,无溶剂改性脂环胺和腰果壳油酚醛胺作为固化剂,引入纳米级片状石墨烯,复配玻璃鳞片,共同构建三维立体屏蔽层,制备了低黏度无溶剂型环氧石墨烯玻璃鳞片重防腐涂料。探讨了树脂复配比例、固化剂复配比例、玻璃鳞片和石墨烯加量对涂层防腐性能的影响。结果表明:当m(E51环氧树脂)∶m(312树脂)=2∶1、m(CK-5106脂环胺)∶m(D0590腰果壳油酚醛胺)=10∶1、玻璃鳞片质量分数为20%、石墨烯质量分数为0.4%时,涂料常温下黏度低至90 KU,可直接采用传统的高压无气喷涂施工工艺,制备的涂层防腐性能优异、柔韧性佳,固含含量接近100%,较传统涂层厚度降低60%,可满足石油炼化、海洋等领域防腐蚀标准及需求。For the existing problems of graphene/glass flake epoxy coatings,such as high environmental pollution,short anti-corrosion period,poor flexibility,and bad applicability for traditional spraying construction,a low-viscosity solvent-free graphene/glass flake epoxy coatings was prepared.The long carbon chain carbonyl compound functionalized toughened resin and low molecular weight liquid bisphenol A epoxy resin were used as film-forming agents,solvent-free modified alicyclic amine and phenolic amine were used as curing agents.At the same time,nanoscale flake graphene and glass flakes were introduced to construct a three dimensional shielding layer.The effects of the compounding ratio of resins,the compounding ratio of curing agents,the dosages of glass flakes and graphene on the anti-corrosion performance of coatings were explored.The results showed that when m(E51 epoxy resin)∶m(312 resin)=2∶1,m(CK-5106 alicyclic amine)∶m(D0590 phenolic amine)=10∶1,the mass fraction of glass flakes and graphene was 20%and 0.4%,respectively,the viscosity of the coatings at room temperature was as low as 90 KU,which was suit for traditional high-pressure airless spraying.The prepared coating showed excellent anti-corrosion performance,good flexibility,and high volume solid content close to 100%.The coating thickness could be reduced by 60%compared to the traditional coating,which could meet the anti-corrosion standards and requirements in fields such as petroleum refining and marine engineering.

关 键 词：低黏度 无溶剂涂料 环氧 石墨烯 玻璃鳞片 防腐 

分 类 号：TQ635.2[化学工程—精细化工]