火焰喷涂尼龙1010/纳米SiO_2复合涂层的力学及老化性能  

On the properties of nylon 1010/nanometer SiO_2 coatings by flame spraying

作　　者：李亚东[1] 谢冰[1] 马亿珠[1] 曹少魁[2] 吴志申[3] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002 [2]郑州大学材料工程学院,河南郑州450052 [3]河南大学特种功能材料重点实验室,河南开封475001

出　　处：《郑州轻工业学院学报（自然科学版）》2005年第3期7-9,共3页Journal of Zhengzhou University of Light Industry:Natural Science

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项目;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、示差扫描量热仪及扫描电子显微镜对火焰喷涂尼龙1010/纳米SiO2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m(尼龙1010)∶m(纳米SO2)=100∶1.5时,复合涂层综合性能较佳,自拉伸强度为69.8 MPa,与基体的结合强度为28.9 MPa;经10 d紫外线老化后,涂层自拉伸强度保持率为80.1%.纳米SiO2有明显的异质成核作用,使复合涂层的过冷度由27℃下降为24℃.表明纳米SiO2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 sprayed nylon 1010/nanometer SiO2 coatings were studied by universal testing instruments and radiation exposure unit. The results showed that when m （nylon 1010） ： m （nanometer SiO2） = 100： 1.5, the properties of the coating was best. The self-strength of the coating was 69.8 MPa. The coating-substrate adhesion stress was 28.9 MPa. Conservation rate of self-strength was 80.1% after 10 d UV radiating, nanometer SiO2 had nucleation. Condensate depression failed down from 27 ℃ to 24 ℃ . Nanometer SiO2 can improve the mechanical properties and UV resistance and the crystallization rate. It has heterogeneous nucleation.

关 键 词：火焰喷涂 尼龙1010 纳米SIO2 复合涂层 

分 类 号：TB332[一般工业技术—材料科学与工程]