| 引用本文: | 王雪明,李爱菊,李国丽,王威强,赵永辉.金属表面制备KH-560硅烷膜涂层的工艺研究[J].中国表面工程,2004,(6):27~31 |
| .Studies of the Preparation of KH-560 Silane Films on Metallic Surface[J].China Surface Engineering,2004,(6):27~31 |
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| 摘要: |
| 制备了有望取代磷化和铬酸盐钝化的KH-560硅烷膜，采用红外反射吸收光谱(RA-IR)分析KH-560硅烷膜的成分和结构、电导率法在线监测硅烷偶联剂水解程度，以涂层拉伸法测试膜的结合强度，研究了影响该硅烷膜性能的各种制备工艺条件。试验研究表明不同水解试剂、硅烷溶液的浓度、水解时间和老化温度及时间等对膜的性能都有着明显的影响，其中水解试剂(水 甲醇)、浓度10％左右、水解时间48h；老化成膜温度100～200℃、时间1h，所获硅烷膜性能较好。同时还说明，水解时间对膜性能的影响要大于浓度对膜性能的影响。 |
| 关键词: 硅烷模 涂层 表面处理 结合强度 |
| DOI： |
| 分类号:O634.31 TH117 |
| 基金项目: |
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| Studies of the Preparation of KH-560 Silane Films on Metallic Surface |
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WANG Xue-ming1 LI Ai-ju1 LI Guo-li2 WANG Wei-qiang3 ZHAO Yong-hui3
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| Abstract: |
| In this paper KH 560 silane film was prepared, which can replace the traditional pretreatment of phosphate or chromate. The influencing factors of preparation technology for KH 560 silane films were studied, including the components, structures, adhesive strength of film, and the hydrolysis degree of KH 560 coupling agent. The components and structures of KH 560 silane film were analyzed by the reflection-absorption infrared spectroscope, the hydrolysis degree of KH 560 coupling agent was measured by the conductivity testing method on-line, and the film adhesive strength was inspected by pull-off testing method. The results indicated that the properties of the film were significantly affected by hydrolysis solvent, hydrolysis time, concentration of KH 560 solution, ageing time and temperature. The best technology for preparing the film was: using water and methanol as hydrolysis agent, 10 % concentration of the solution, 48 hours for hydrolysis, 100~200 and 4 hours for ageing. At the same time, the effect of hydrolysis time on this film was more sensitive than that of solution concentration. |
| Key words: silane coupling agents,coatings,surface pretreatment,adhesive strength |
