贝壳粉改性及在丙烯酸/氟碳复合涂层中的应用研究  

Modification of Shell Powder and Its Application in Acrylic/Fluorocarbon Composite Coatings

作　　者：靳朝辉 范云鑫 姚佳琪 于朝生 JIN Zhao-hui;FAN Yun-xin;YAO Jia-qi;YU Chao-sheng(School of Chemistry,Chemical Engineering and Resource Utilization,Northeast Forestry University,Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040,Heilongjiang,China)

机构地区：[1]东北林业大学化学化工与资源利用学院,东北林业大学森林植物生态学教育部重点实验室,黑龙江哈尔滨150040

出　　处：《合成材料老化与应用》2024年第2期4-6,53,共4页Synthetic Materials Aging and Application

摘　　要：利用钛酸酯偶联剂NDZ102对贝壳粉进行表面改性,将改性后的贝壳粉(MSP)填充到FEVE涂料中制备MSP/丙烯酸/FEVE复合涂层。利用傅里叶变换红外光谱(FTIR)、接触角测量仪、扫描电镜(SEM)等手段对改性前后的贝壳粉进行表征分析,通过低温摩擦磨损试验机和电化学阻抗谱(EIS)分析涂层的耐磨性和防腐性能。结果表明:以无水乙醇作为分散剂,NDZ102质量分数为3%,反应温度为90℃,反应时间为30min,可实现NDZ102对贝壳粉的表面改性;当MSP添加量为10%时,MSP/丙烯酸/FEVE复合涂层磨损率为13.2%,相对于纯FEVE涂层提升30.41%;在3.5%NaCl溶液中浸泡20天后涂层的|Z|0.01Hz为3.89×107Ω·cm^(2),比纯FEVE涂层(|Z|0.01Hz为5.85×105Ω·cm^(2))提升两个数量级。这表明加入一定量的MSP可以提升涂层的防腐和耐摩擦性能。The surface modification of shellac was carried out using the titanate coupling agent NDZ102,and the modified shellac(MSP)was filled into the FEVE coating to prepare the MSP/acrylic/FEVE composite coating.Fourier transform infrared spectroscopy(FTIR),contact angle meter and scanning electron microscope(SEM)were used to characterize the shellac before and after modification,and the abrasion and anti-corrosion properties of the coatings were analyzed by low-temperature friction and wear testing machine and electrochemical impedance spectroscopy(EIS).The results showed that the surface modification of shellac by NDZ102 can be realized by using anhydrous ethanol as the dispersant,NDZ102 mass fraction of 3%,reaction temperature of 90℃and reaction time of 30 min.The wear rate of the MSP/acrylic/FEVE composite coating was 13.2%when the amount of MSP added was 10%,which was enhanced by 30.41%relative to that of the pure FEVE coating;and the|Z|0.01Hz of the coating was 3.89×107Ω·cm^(2) after immersing in 3.5%NaCl solution for 20 days,which was enhanced by two orders of magnitude compared with that of the pure FEVE coating.This indicates that the addition of a certain amount of MSP can enhance the corrosion and friction resistance of the coating.

关 键 词：贝壳粉 氟碳涂料 耐磨 防腐 

分 类 号：TQ630.7[化学工程—精细化工]