摘要
以丁腈橡胶为基底,采用紫外线-臭氧照射进行亲水/超亲水表面改性,通过接触角测量仪、光学显微镜对亲水改性表面的接触角、接触角滞后和微观形貌等特性进行表征,分析了表面亲水性的改性机理,并采用MFT-5000型摩擦磨损试验机测试了丁腈橡胶亲水表面的机械耐久性和保持性.研究结果表明:采用紫外线臭氧照射丁腈橡胶10 min,就能得到完全润湿的超亲水表面,且在紫外线臭氧照射下,丁腈橡胶与臭氧发生反应生成氧化膜,使亲水改性后的丁腈橡胶,在干摩擦和水润滑状态下均表现出较小的摩擦系数和较好的耐磨性.
In the study,hydrophilic/superhydrophilic surface modification was carried out by UV/ozone treatment using the nitrile rubber as a substrate.The characteristics of hydrophilic modified surface contact angle,contact angle hysteresis and microscopic morphology were characterized by contact angle measuring instrument and optical microscope,and the modification mechanism of surface hydrophilicity was analyzed.The mechanical durability and retention of the hydrophilic surface of the nitrile rubber were tested using the MFT-5000 friction and wear tester.The results show that the superhydrophilic and completely wetted surface can be obtained within 10 min after UV/ozone treatment.The nitrile butadiene rubber reacted with ozone to form an oxide film,so that the hydrophilic modified nitrile butadiene rubber exhibited a low friction coefficient and good wear resistance under both dry friction and water lubrication conditions.
作者
王家序
冯伟
韩彦峰
王立武
李俊阳
WANG Jiaxu;FENG Wei;HAN Yanfeng;WANG Liwu;LI Junyang(College of Mechanical Engineering,Chongqing University,Chongqing400044,China;State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing400044,China)
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2019年第4期463-469,共7页
Tribology
基金
中央高校基本科研业务费(KJYF201720)
国家自然科学基金项目(51605053,51435001)
重庆市自然科学基金项目(cstc2016jcyjA0307,cstc2016jcyjA0511)资助~~
关键词
丁腈橡胶
紫外线臭氧
亲水改性
机械耐久性
亲水保持性
nitrile butadiene rubber
ultraviolet ozone
hydrophilic modification
mechanical durability
hydrophilic retention
