刘超,曹晓雪,许洪珠,刘惠涛,高原.过氧化氢水热改性PMMA及其对界面粘附性的影响[J].表面技术,2022,51(3):208-216.
LIU Chao,CAO Xiao-xue,XU Hong-zhu,LIU Hui-tao,GAO Yuan.Hydrothermal Modification of PMMA with Hydrogen Peroxide and Its Effect on Interfacial Adhesion[J].Surface Technology,2022,51(3):208-216
过氧化氢水热改性PMMA及其对界面粘附性的影响
Hydrothermal Modification of PMMA with Hydrogen Peroxide and Its Effect on Interfacial Adhesion
投稿时间:2021-04-09  修订日期:2021-09-02
DOI:10.16490/j.cnki.issn.1001-3660.2022.03.022
中文关键词:  聚甲基丙烯酸甲酯  过氧化氢  表面改性  二氧化硅涂层  水热法
英文关键词:polymethyl methacrylate  hydrogen peroxide  surface modification  silica coating  hydrothermal method
基金项目:国家自然科学基金(51573155)
作者单位
刘超 烟台大学 化学化工学院,山东 烟台 264005 
曹晓雪 烟台大学 化学化工学院,山东 烟台 264005 
许洪珠 烟台大学 化学化工学院,山东 烟台 264005 
刘惠涛 烟台大学 化学化工学院,山东 烟台 264005 
高原 烟台大学 化学化工学院,山东 烟台 264005 
AuthorInstitution
LIU Chao College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China 
CAO Xiao-xue College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China 
XU Hong-zhu College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China 
LIU Hui-tao College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China 
GAO Yuan College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China 
摘要点击次数:
全文下载次数:
中文摘要:
      目的 利用过氧化氢(H2O2)溶液的强氧化性,探索一种简单、实用的PMMA基材表面改性方法。研究室温及水热条件下H2O2对PMMA的作用机理,同时考察表面改性对PMMA基体与SiO2涂层界面粘附性产生的影响。方法 采用不同浓度的H2O2溶液,在室温或水热条件下处理PMMA基材。用红外光谱仪(FTIR)测定PMMA改性前后表面化学组成的变化,用紫外可见分光光度计(UV-Vis)表征样品的透光率,通过测量水接触角评价样品表面的润湿性。采用磁控溅射法和Sol-Gel法分别在PMMA基材表面制备SiO2涂层,用材料显微镜和原子力显微镜(AFM)分析表面形貌的微观变化,通过划格试验和摩擦试验评价涂层的附着力。结果 PMMA基材表面处理条件为30%(质量分数)H2O2溶液、水热温度60 ℃、时间1 h,水接触角由73°下降为56°。AFM分析表明,H2O2去除了PMMA表面的钝化层,磁控溅射法沉积的SiO2颗粒形状规整,均匀致密。Sol-Gel法制备的涂层表面的可见裂纹由未改性多、室温改性少变为水热改性无。划格试验表明,在水热改性后,PMMA表面所制备的涂层没有脱落,评价为0级。结论 高浓度H2O2溶液水热处理PMMA基材改善了其表面润湿性,提高了PMMA与SiO2涂层之间的界面粘附性。在改性后,PMMA表面所制备的SiO2涂层由均匀致密的纳米颗粒组成,起到了一定的防护效果。
英文摘要:
      Based on the strong oxidation property of H2O2 solution, a simple and practical method for surface modification of PMMA substrate was explored. The mechanism of H2O2 on PMMA at room temperature and hydrothermal conditions was studied, and the effect of surface modification on the interface adhesion between PMMA substrate and SiO2 coating was investigated.PMMA substrates were treated with different concentrations of H2O2 solutions at room temperature or under hydrothermal conditions. Changes of surface chemical composition of PMMA before and after modification were measured by infrared spectrometer (FTIR); the light transmittance of sample was characterized by ultraviolet-visible spectrophotometer (UV-Vis); the surface wettability of sample was evaluated by the measurement of water contact angle. SiO2 coating was prepared on the surface of PMMA substrate by magnetron sputtering method and sol-gel method, respectively. The microscopic changes of surface morphology were analyzed by material microscope and atomic force microscope (AFM), and the coating adhesion was evaluated by cross-cut and friction test. The surface treatment conditions of PMMA substrate were 30wt% H2O2 solution, hydrothermal temperature 60 ℃ and time 1h. The water contact angle decreased from 73° to 56°. AFM analysis showed that H2O2 removed the passivation layer of PMMA, and the SiO2 particles deposited by magnetron sputtering were of regular shape, uniform and compact. The visible cracks on the surface of coating prepared by sol-gel method changed from more unmodified, less modified at room temperature to no hydrothermal modification. Cross-cut tests showed that coating prepared on the surface of hydrothermally modified PPMA did not fall off and was evaluated as grade 0. Hydrothermal treatment of PMMA substrate with high concentration H2O2 solution improves its surface wettability and improves the interfacial adhesion between PMMA and SiO2 coating. SiO2 coating prepared on the surface of modified PMMA is composed of uniform and dense nanoparticles, which has a certain protective effect.
查看全文  查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第19516416位访问者    渝ICP备15012534号-3

版权所有:《表面技术》编辑部 2014 surface-techj.com, All Rights Reserved

邮编:400039 电话:023-68792193传真:023-68792396 Email: bmjs@surface-techj.com

渝公网安备 50010702501715号