Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings
Superhydrophobic coatings with micro-nano hierarchical structure constructed by nano particles usually have a poor behavior in water impact situation. This weakness limits superhydrophobic coatings' outdoor potential applications. A low-acoustic resistance all-organic superhydrophobic coating w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2020-07-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2020/V48/I7/162 |
| _version_ | 1797964946437308416 |
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| author | LI Wei-min PENG Chao-yi YANG Jin-shui XING Su-li |
| author_facet | LI Wei-min PENG Chao-yi YANG Jin-shui XING Su-li |
| author_sort | LI Wei-min |
| collection | DOAJ |
| description | Superhydrophobic coatings with micro-nano hierarchical structure constructed by nano particles usually have a poor behavior in water impact situation. This weakness limits superhydrophobic coatings' outdoor potential applications. A low-acoustic resistance all-organic superhydrophobic coating was prepared by spraying and compression molding methods with epoxy and PTFE particles. Water impact test was designed according to impact failure mechanism, and then water impact resistance was evaluated and compared with commercial superhydrophobic coatings'. The results indicate that the hydrophobicity reaches peak when coating contains 70% (mass fraction, the same below) PTFE particles, with 164.13° water contact angle(WCA) and 3° water slide angle(WSA). For water impact resistance, the coating with 75% PTFE particles has the best performance, it can keep the WCA at 154.62° after 22.77 ms<sup>-1</sup> water jet impact test. And the molding coatings have better performance than sprayings. Besides, the results also show coating's good adhesion and wearability, for example, it can keep the WCA at 150.51° and WSA at 4° after 25-cycle tape peeling test, and keep the WCA at 149.21° and WSA at 9° after 20-cycle wear test. |
| first_indexed | 2024-04-11T01:51:31Z |
| format | Article |
| id | doaj.art-f7f063067f774ea1bed54355ca093808 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:51:31Z |
| publishDate | 2020-07-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-f7f063067f774ea1bed54355ca0938082023-01-03T06:24:15ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812020-07-0148716216910.11868/j.issn.1001-4381.2018.00109720200718Preparation of all-organic superhydrophobic PTFE/epoxy composite coatingsLI Wei-min0PENG Chao-yi1YANG Jin-shui2XING Su-li3Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China;College of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaSuperhydrophobic coatings with micro-nano hierarchical structure constructed by nano particles usually have a poor behavior in water impact situation. This weakness limits superhydrophobic coatings' outdoor potential applications. A low-acoustic resistance all-organic superhydrophobic coating was prepared by spraying and compression molding methods with epoxy and PTFE particles. Water impact test was designed according to impact failure mechanism, and then water impact resistance was evaluated and compared with commercial superhydrophobic coatings'. The results indicate that the hydrophobicity reaches peak when coating contains 70% (mass fraction, the same below) PTFE particles, with 164.13° water contact angle(WCA) and 3° water slide angle(WSA). For water impact resistance, the coating with 75% PTFE particles has the best performance, it can keep the WCA at 154.62° after 22.77 ms<sup>-1</sup> water jet impact test. And the molding coatings have better performance than sprayings. Besides, the results also show coating's good adhesion and wearability, for example, it can keep the WCA at 150.51° and WSA at 4° after 25-cycle tape peeling test, and keep the WCA at 149.21° and WSA at 9° after 20-cycle wear test.http://jme.biam.ac.cn/CN/Y2020/V48/I7/162superhydrophobic coatingptfeepoxysprayingcompression moldingwater impact resi-stance |
| spellingShingle | LI Wei-min PENG Chao-yi YANG Jin-shui XING Su-li Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings Cailiao gongcheng superhydrophobic coating ptfe epoxy spraying compression molding water impact resi-stance |
| title | Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings |
| title_full | Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings |
| title_fullStr | Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings |
| title_full_unstemmed | Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings |
| title_short | Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings |
| title_sort | preparation of all organic superhydrophobic ptfe epoxy composite coatings |
| topic | superhydrophobic coating ptfe epoxy spraying compression molding water impact resi-stance |
| url | http://jme.biam.ac.cn/CN/Y2020/V48/I7/162 |
| work_keys_str_mv | AT liweimin preparationofallorganicsuperhydrophobicptfeepoxycompositecoatings AT pengchaoyi preparationofallorganicsuperhydrophobicptfeepoxycompositecoatings AT yangjinshui preparationofallorganicsuperhydrophobicptfeepoxycompositecoatings AT xingsuli preparationofallorganicsuperhydrophobicptfeepoxycompositecoatings |