纳米TiO_2对火焰喷涂尼龙1010涂层性能的影响研究  

The Study on the Properties of Nylon1010/nano-TiO_2 Coating by Flame Spraying

作　　者：李亚东[1] 杜娟[2] 谢冰[1] 曹少魁[3] 吴志申[4] 

机构地区：[1]郑州轻工业学院材料与化工学院,河南郑州450002 [2]郑州牧业工程高等专科学校基础课部,河南郑州450008 [3]郑州大学材料工程学院,河南郑州450052 [4]河南大学特种功能材料重点实验室,河南开封475001

出　　处：《中国表面工程》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)

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.

关 键 词：火焰喷涂 尼龙1010 纳米TIO2 复合涂层 

分 类 号：TB332[一般工业技术—材料科学与工程]