Precise WEDM of micro-textured mould for micro-injection molding of hydrophobic polymer surface.
Saved in:
| Title: | Precise WEDM of micro-textured mould for micro-injection molding of hydrophobic polymer surface. |
|---|---|
| Authors: | Lu, Yanjun1 (AUTHOR), Chen, Fumin1 (AUTHOR), Wu, Xiaoyu1 (AUTHOR), Zhou, Chaolan1 (AUTHOR) zhouchaolan@szu.edu.cn, Zhao, Hang1 (AUTHOR), Li, Liejun1,2 (AUTHOR) liliejun@scut.edu.cn, Tang, Yong2 (AUTHOR) |
| Source: | Materials & Manufacturing Processes. 2019, Vol. 34 Issue 12, p1342-1351. 10p. |
| Subjects: | Hydrophobic surfaces, Contact angle, Injection molding, Surface topography, Surface roughness, Polymers |
| Abstract: | In this paper, the hydrophobic polymer surface with regular and controllable micro-textured structures was effectively and rapidly fabricated by micro-injection molding using a novel micro-textured mold machined by wire electrical discharge machining (WEDM). The phase constitutions of smooth and micro-textured mold surfaces were compared along with machined surface roughness of molds. The surface topographies of micro-textured molds and micro-injection molded polymers were characterized. The machining accuracy of WEDM for micro-textured mold and the replication rate of micro-injection molding for micro-textured polymer were calculated and analyzed. The wetting behaviors of smooth and micro-textured polymer surface were investigated together with the static contact angle and contact angle evolution versus time. The experimental results show that the maximum contact angle on the micro-textured polymer surface can reach to 127.5°, which was improved by about 71.6% compared with smooth polymer surface. It is shown that the highest machining accuracy of mold and the maximum replication rate of micro-injection molding can reach to 0.153% and 99.455%, respectively. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials & Manufacturing Processes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | In this paper, the hydrophobic polymer surface with regular and controllable micro-textured structures was effectively and rapidly fabricated by micro-injection molding using a novel micro-textured mold machined by wire electrical discharge machining (WEDM). The phase constitutions of smooth and micro-textured mold surfaces were compared along with machined surface roughness of molds. The surface topographies of micro-textured molds and micro-injection molded polymers were characterized. The machining accuracy of WEDM for micro-textured mold and the replication rate of micro-injection molding for micro-textured polymer were calculated and analyzed. The wetting behaviors of smooth and micro-textured polymer surface were investigated together with the static contact angle and contact angle evolution versus time. The experimental results show that the maximum contact angle on the micro-textured polymer surface can reach to 127.5°, which was improved by about 71.6% compared with smooth polymer surface. It is shown that the highest machining accuracy of mold and the maximum replication rate of micro-injection molding can reach to 0.153% and 99.455%, respectively. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 10426914 |
| DOI: | 10.1080/10426914.2019.1660784 |
