高强度纳米涂层气缸套的制备及其抗穴蚀性能的研究  

Preparation and Cavilation Erosion Resistance of High Strength Nanocoating Cylinder Liner

作　　者：姜玉领 郭进京 赵慧 JIANG Yu-ling;GUO Jin-jing;ZHAO Hui(Zhongyuan Internal Combustion Engine Parts Group Limited by Share,Jiaozuo 454750,China)

机构地区：[1]中原内配集团股份有限公司,焦作454750

出　　处：《内燃机与配件》2018年第23期12-14,共3页Internal Combustion Engine & Parts

摘　　要：以过硫酸铵作为氧化剂,纳米二氧化硅作为分散介质,将邻甲基苯胺通过氧化反应生成一种具有核壳结构的聚邻甲基苯胺/纳米二氧化硅粒子。利用ICP-AES法考察粒子的产出率,通过附着力法研究涂层与缸套的结合情况,利用震动气体穴蚀法研究涂层缸套的抗穴蚀性能。结果表明,聚邻甲基苯胺(POT)均匀的包覆在纳米二氧化硅粒子周围,形成稳定的具有核壳结构的聚邻甲基苯胺/纳米SiO_2粒子,当m(SiO_2):m(POT)=1:8,n((NH_4)_2S_2O_4):n(POT)=1:1,温度控制在10-15℃时,制备的复合聚邻甲基苯胺/纳米SiO_2粒子,产出率达到85%。以复合聚邻甲基苯胺/纳米SiO_2粒子为功能组分,环氧树脂为成膜剂,制备复合聚邻甲基苯胺/纳米SiO_2粒子/环氧树脂涂层缸套,具有良好的抗穴蚀性能,t_(100)=885min.Using ammonium persulfate as oxidant and nano-silica as dispersing medium,o-toluidine was oxidized to form a core-shell structure poly(o-toluidine)/nano-SiO2particle.Investigation of particle yield by ICP-AES method,the adhesion method was used to study the adhesion between coating and cylinder liner,and the cavitation resistance of coating cylinder linder was studied by vibration gas cavitation method.The results showed that poly(o-toluidine)was uniformly coated around the nano-silica particlesto form stable poly(otoluidine)/nano-SiO2with core-shell structure,when m(SiO2):m(POT)=1:8,n((NH4)2S2O3):n(POT)=1:1,and the temperature was controlled from10 to 15℃,the composite poly(o-toluidine)/nano-SiO2particles were prepared and the yield reached 85%.Composite poly(o-toluidine)/nano-SiO2particles as functional component and epoxy resin as film-forming agent were used to prepare composite poly(o-toluidine)/nanoSiO2/epoxy resin coated cylinder liner with good cavitation resistance,t100=885min.

关 键 词：聚邻甲基苯胺(POT) 纳米SIO2 缸套 穴蚀 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]