张雅雅,崔建国.基于紫外臭氧光照技术的PDMS表面改性参数研究[J].表面技术,2016,45(3):89-95.
ZHANG Ya-ya,CUI Jian-guo.The Parameters Research of PDMS Surface Modification Based on UVO Irradiation[J].Surface Technology,2016,45(3):89-95 |
| 基于紫外臭氧光照技术的PDMS表面改性参数研究 |
| The Parameters Research of PDMS Surface Modification Based on UVO Irradiation |
| 投稿时间：2015-09-20 修订日期：2016-03-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.03.015 |
| 中文关键词: 表面改性 紫外臭氧光照 聚二甲基硅氧烷 键合强度 最优工艺参数 |
| 英文关键词:Surface modification Ultraviolet Ozone(UVO) irradiation Polydimethylsiloxane(PDMS) Bonding strength Optimal parameters |
| 基金项目:国家科技支撑计划资助项目（2015BAI01B14）；重庆理工大学研究生教育教学改革项目（yjg2013205）；重庆理工大学实验技术基金项目 (Sk201403) |
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| 中文摘要: |
| 目的 聚二甲基硅氧烷（PDMS）作为微流控芯片研制中常用的高分子材料，其本身的疏水特性是影响微流控芯片整体键合效果的主要障碍。为了在短时间内成功实现PDMS与基底材料的有效键合与封装，设计了一种可在普通实验室开展的低成本且高效的PDMS材料改性方法。方法 基于紫外臭氧光照改性法对PDMS材料表面进行改性研究，通过正交试验深入研究紫外光照射时间、距离及通氧时间对PDMS表面改性效果的影响，在50 ℃水浴环境下通过测量不同时间PDMS基片与盖片（PDMS或玻璃）的键合强度，从而确定最优工艺参数组合。结果 相比于传统紫外光照射表面改性法的键合时间（大于50 h），本工艺可在6 h内成功实现PDMS的有效封装，并确定了P-P键合P-G键合的最优参数组合，两者平均键合强度均大于200 kPa。结论 整个工艺操作简单、成本低，可作为普通实验室开展微流控实验研究的有益补充。 |
| 英文摘要: |
| Objective Polydimethylsiloxane (PDMS) was developed as commonly used polymer materials in microfluidic chip, and its own hydrophobic properties was a major obstacle to affect whole chip bonding effect. In order to effective bonding and packaging between the substrate materials, a low cost and high-efficiency PDMS material modification method was designed, which can be carried out in the general laboratory, and be successfully achieved in a short time. Methods Used ultraviolet ozone(UVO) irradiation method to study PDMS surface modification, used the orthogonal experiment method to study the UV irradiation time, distance and oxygen time on the PDMS surface modification effect, and measured the bond strength between PDMS substrate and the cover sheet (PDMS or glass) in 50 ℃ water bath at different times, and finally determined the optimal combination of the parameters. Results Compared with the traditional surface modification method of ultraviolet irradiation, for its bonding time (more than 50h) and equipment costs, this process can be successfully implemented PDMS packaging in six hours. And finally determined the P-P and P-G’s optimal parameter combinations, both average bonding strength were greater than 200KPa. Conclusion The whole process is simple, low cost, it can be used as a useful supplement to ordinary laboratories microfluidic experimental research. |
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