摘要
利用电子拉力机、紫外光辐照箱、示差扫描量热仪(DSC)及描电子显微镜(SEM)对火焰喷涂尼龙1010/纳米TiO2复合涂层的力学性能、耐老化性能及热性能等进行了测试。结果表明,当复合涂层配比为m(PA1010):m(n-TiO2)=100:1.5时,复合涂层综合性能较佳,涂层自拉伸强度为73.68MPa;涂层与基体结合强度为26.4MPa;涂层经10天紫外线老化后,涂层自拉伸强度保持率为94.2%;DSC分析结果表明,纳米TiO2有明显的异质成核作用,使复合涂层的过冷度由27.0℃下降为23.0℃。提示纳米TiO2能够显著提高涂层力学性能和抗老化性能,并有助于提高复合涂层的结晶速率,具有明显的成核作用。
The mechanical properties and UV resistance of flame s prayed Nylon1010/nano-TiO2 composite coating were studied. The results showed that when PA1010 was filled with 1.5 % nano- TiO2, the properties of the coating was best. The coating-substrate adhesion strength was 26.4 MPa. The self-strength of the coating was 73.68 MPa. After 240 hours UV radiating, the self-strength of coating was 69.41 MPa. DSC analysis showed that nano-TiO2 can increase the crystallization speed of PA 1010 coating obviously.
出处
《中国表面工程》
EI
CAS
CSCD
2005年第5期31-34,共4页
China Surface Engineering
基金
河南省自然科学基金资助项目(0311022400)
河南省高校青年骨干教师资助计划资助项目(2001)
河南省高校杰出人才创新工程资助项目(2003KYCX008)
河南省教育厅科技攻关资助项目(2003530293)
关键词
火焰喷涂
尼龙1010
纳米TIO2
复合涂层
flame spraying
Nylon 1010
nanometer TiO2
coatings
mechanical properties UV resistance
