水性多功能涂料的制备及其性能研究  

Preparation and Properties of Waterborne Multifunctional Coatings

作　　者：问娟娟 刘浪浪 高洁[1] 仝红娟 WEN Juanjuan;LIU Langlang;GAO Jie;TONG Hongjuan(Collaborative Innovation Center of Green Manufacturing Technology for Traditional Chinese Medicine in Shaanxi Province,School of Pharmacy,Shaanxi Institude of International Trade&Commerce,Xianyang 712046,China;School of Chemical Engineering,Shaanxi Normal University,Xi’an 710119,China;Shaanxi Baotashan Paint Co.,Ltd.,Xingping 713100,China)

机构地区：[1]陕西国际商贸学院医药学院,陕西省中药绿色制造技术协同创新中心,陕西咸阳712046 [2]陕西师范大学化学化工学院,陕西西安710119 [3]陕西宝塔山油漆股份有限公司,陕西兴平713100

出　　处：《材料保护》2023年第9期116-119,共4页Materials Protection

基　　金：陕西省科协青年人才托举计划资助(2020-4-1);陕西省自然科学基础研究计划(面上)项目(2021JM-540);陕西国际商贸学院校级课题(SMXY202217)资助。

摘　　要：近年来,我国有很多陈旧的建筑外墙亟待翻新。前期研究开发出一款双组分的水性底面合一涂料,然而存在色差难以控制、施工时间受限、双组分之一的粉料组分易出现受潮等问题。因此,特设计一款单组分水性多功能涂料,可以很好地解决上述问题。结果表明:该涂料耐洗刷性测试5 000次无异常;透水性测试为0.4 mL;涂膜的抗泛碱性和抗盐析性测试均为72 h无异常;水性多功能涂料在水泥基材上无处理的粘结强度最大为2.7 MPa,碱处理的粘结强度最小为1.4 MPa,粘结强度保持率(1.4/2.7)为52%;潮湿处理之后,水性多功能涂料在平整釉面瓷砖粘结强度保持率(3.1/4.3)为72%,非平整釉面瓷砖粘结强度保持率(2.6/3.4)为76%。该水性多功能涂料不仅同时达到了外墙涂料底漆和面漆的性能要求,又在一些极端环境条件的基材上具有一定的柔韧性和良好的附着力,应用前景良好。In recent years,many old building exterior walls in China need to be renovated.A double-component waterborne coating of primer topcoat in one was developed in the previous research.However,there are problems such as difficulties to control color difference,limited con-struction time,and the tendency of one of the two component powder components to become damp.Therefore,a single component waterborne multifunctional coating was specially designed and developed to solve the above problems.Results showed that the coating had no abnormality after 5000 times of washing resistance testꎻThe water permeability test was 0.4 mLꎻThe anti-alkalinity and anti-salting out test of the film were both normal for 72 hꎻThe maximum bonding strength of waterborne multifunctional coatings on cement substrate without treatment was 2.7 MPa,the minimum bonding strength of alkali treatment was 1.4 MPa,and the retention rate of bonding strength(1.4/2.7)was 52%.After moisture treatment,the retention rate of bonding strength of waterborne multifunctional coating on flat glazed ceramic tiles(3.1/4.3)was 72%,and that of non-flat glazed ceramic tiles(2.6/3.4)was 76%.The waterborne multifunctional coatings not only met the performance requirements of both the primer and topcoat for exterior wall coatings,but also had a certain flexibility and good adhesion on some substrates under extreme environmental conditions,with good application prospects.

关 键 词：水性多功能涂料 颜填料 涂膜 抗泛碱性 粘结强度 

分 类 号：TQ637.8[化学工程—精细化工]