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EP-PDMS-PVDF-SiO2超疏水复合涂层的制备与耐摩擦性能

姜礼华 林一凡 孙嘉进 龚梦天 涂凯 陈宇桐 肖婷 谭新玉

姜礼华, 林一凡, 孙嘉进, 等. EP-PDMS-PVDF-SiO2超疏水复合涂层的制备与耐摩擦性能[J]. 复合材料学报, 2024, 42(0): 1-12.
引用本文: 姜礼华, 林一凡, 孙嘉进, 等. EP-PDMS-PVDF-SiO2超疏水复合涂层的制备与耐摩擦性能[J]. 复合材料学报, 2024, 42(0): 1-12.
JIANG Lihua, LIN Yifan, SUN Jiajin, et al. Preparation and abrasion resistance properties of EP-PDMS-PVDF-SiO2 superhydrophobic composite coating[J]. Acta Materiae Compositae Sinica.
Citation: JIANG Lihua, LIN Yifan, SUN Jiajin, et al. Preparation and abrasion resistance properties of EP-PDMS-PVDF-SiO2 superhydrophobic composite coating[J]. Acta Materiae Compositae Sinica.

EP-PDMS-PVDF-SiO2超疏水复合涂层的制备与耐摩擦性能

基金项目: 湖北省自然科学基金联合基金重点项目 (2023AFD184)
详细信息
    通讯作者:

    姜礼华,博士,副教授,硕士生导师,研究方向为超疏水功能材料 E-mail: jlihua107@ctgu.edu.cn

    谭新玉,博士,教授,博士生导师,研究方向为太阳能功能材料及技术 E-mail: tanxin@ctgu.edu.cn

  • 中图分类号: TQ311;TQ317;TQ02;TB332

Preparation and abrasion resistance properties of EP-PDMS-PVDF-SiO2 superhydrophobic composite coating

Funds: Key Project for the Joint Funds of Hubei Provincial Natural Science Foundation (2023AFD184)
  • 摘要: 提高超疏水涂层砂纸耐摩擦性能对其应用具有重要意义。因此,以环氧树脂(EP)、聚二甲基硅氧烷(PDMS)和聚偏氟乙烯(PVDF)为粘结剂,以四种纳米级二氧化硅(SiO2)粒子为主要填料和一种微米级SiO2粒子作为增强涂层耐摩擦性能的辅助填料制备了一种耐摩擦性能优异的超疏水涂层,并对其砂纸耐摩擦性能进行系统地测试和分析。接触角测试结果表明涂层水滴接触角和滚动角分别保持在156°~165°和2°~4°之间。砂纸摩擦测试表明添加2或5 μm的SiO2粒子能使涂层耐摩擦周期提高2-3倍。同时,涂层耐摩擦性能还与砂纸粒度相关。涂层被9 或6.5 μm粒度砂纸摩擦失去超疏水性能后,能通过19或11 μm粒度砂纸的摩擦而恢复其超疏水特性。然而,涂层被38、19或11 μm粒度砂纸摩擦后其超疏水性能无法恢复。分析表明,低粒度砂纸更易破坏涂层表面多级微纳粗糙结构,但该结构可通过高粒度砂纸摩擦而被恢复,高粒度砂纸则倾向于使涂层从基材表面剥离。

     

  • 图  1  (a) EP-PDMS-PVDF-SiO2涂层制备流程示意图和 (b) 砂纸耐摩擦测试示意图

    Figure  1.  (a) The process flow diagram of the EP-PDMS-PVDF-SiO2 coating synthesis and (b) the schematic diagram for the sandpaper abrasion resistance test

    图  2  (a) EP-PDMS-PVDF-SiO2涂层的EDS光谱; (b) 不同原材料和EP-PDMS-PVDF-SiO2涂层的FTIR图谱

    Figure  2.  (a) EDS spectra of the EP-PDMS-PVDF-SiO2 coating; (b) FTIR spectra of the various raw chemical materials and the EP-PDMS-PVDF-SiO2 coating

    图  3  含有不同微米级SiO2颗粒的EP-PDMS-PVDF-SiO2涂层表面不同液滴光学图像及其接触角(WCA)和滚动角(WSA):(a) 0.5 μm,(b) 2 μm,(c) 5 μm, (d) 10 μm,(e) 20 μm,(f) 35 μm

    Figure  3.  The optical images, water contact angle (WCA) and water sliding angle (WSA) of different droplets on the surface of the EP-PDMS-PVDF-SiO2 coatings with different micron-sized SiO2 particles: (a) 0.5 μm,(b) 2 μm, (c) 5 μm, (d) 10 μm, (e) 20 μm, (f) 35 μm

    图  4  (a) EP-PDMS-PVDF-SiO2涂层的弹跳和自清洁性能; (b) EP-PDMS-PVDF-SiO2涂层银镜反射现象

    Figure  4.  (a) The bouncing and self-cleaning properties of the EP-PDMS-PVDF-SiO2 coating; (b) the silver-mirror-like reflection phenomenon of the EP-PDMS-PVDF-SiO2 coating

    图  5  含有不同尺寸微米级SiO2颗粒EP-PDMS-PVDF-SiO2涂层表面SEM形貌:(a) 0.5 μm,(b) 2 μm,(c) 5 μm,(d) 10 μm,(e) 20 μm,(f) 35 μm

    Figure  5.  The SEM images of the surface morphologies of the EP-PDMS-PVDF-SiO2 coatings with adding different size SiO2 particles: (a) 0.5 μm, (b) 2 μm, (c) 5 μm, (d) 10 μm, (e) 20 μm, (f) 35 μm

    图  6  (a)-(e) EP-PDMS-PVDF-SiO2涂层WCA和WSA随摩擦周期次数的变化曲线图。所有含有不同尺寸微米级SiO2颗粒的EP-PDMS-PVDF-SiO2涂层均被相同粒度的砂纸摩擦: (a) 38 μm,(b) 19 μm,(c) 11 μm,(d) 9 μm,(e) 6.5 μm

    Figure  6.  (a)-(e) The changes of the WCAs and WSAs with the abrasion cycles. All the EP-PDMS-PVDF-SiO2 coatings with adding different size SiO2 particles were abraded by the same grit sandpaper: (a) 38 μm, (b) 19 μm, (c) 11 μm, (d) 9 μm, (e) 6.5 μm

    图  7  含有相同尺寸微米级SiO2颗粒的EP-PDMS-PVDF-SiO2涂层被不同粒度砂纸摩擦后WCA和WSA随摩擦周期数的变化曲线: (a) 0.5 μm,(b) 2 μm,(c) 5 μm,(d)10 μm,(e) 20 μm,(f) 35 μm

    Figure  7.  The changes of the WCA and WSA after that the EP-PDMS-PVDF-SiO2 coatings with the same micron-sized SiO2 particles were abraded by the different grit sandpaper, (a) 0.5 μm, (b) 2 μm, (c) 5 μm, (d) 10 μm, (e) 20 μm, (f) 35 μm

    图  8  含有(a) 2 μm 和 (b) 20 μm SiO2颗粒的EP-PDMS-PVDF-SiO2涂层厚度

    Figure  8.  The thickness of the EP-PDMS-PVDF-SiO2 coating with the addition of (a) 2 μm and (b) 20 μm micron-sized SiO2 particles

    图  9  (a) 38 μm粒度和 (b) 6.5 μm粒度砂纸表面SEM形貌

    Figure  9.  The surface SEM morphologies of (a) 38 μm grit and (b) 6.5 μm grit sandpaper

    图  10  含有2 μm (a) 和 20 μm (b) SiO2颗粒的EP-PDMS-PVDF-SiO2涂层被38 μm粒度砂纸摩擦3-5个周期后的表面形貌;含有2 μm (c) 和20 μm (d) SiO2颗粒的EP-PDMS-PVDF-SiO2涂层被6.5 μm粒度砂纸摩擦3-5个周期丧失超疏水性能后的表面形貌;含有2 μm (e) 和 20 μm (f) SiO2颗粒的EP-PDMS-PVDF-SiO2涂层被6.5 μm粒度砂纸摩擦3-5个循环丧失超疏水性能后再通过11 μm粒度砂纸摩擦使其超疏水性能被恢复后相应表面形貌

    Figure  10.  The surface morphologies of the EP-PDMS-PVDF-SiO2 coatings with adding 2 μm (a) and 20 μm (b) SiO2 particles which were abraded for 3-5 cycles by 38 μm grit sandpaper; the surface morphologies of the EP-PDMS-PVDF-SiO2 coatings with adding 2 μm (c) and 20 μm (d) SiO2 particles which were abraded for 3-5 cycles by 6.5 μm grit sandpaper; after abrasion of 3-5 cycles with 6.5 μm grit sandpaper, for the EP-PDMS-PVDF-SiO2 coatings with adding 2 μm (e) and 20 μm (f) SiO2 particles, the corresponding EP-PDMS-PVDF-SiO2 coating surface morphologies with the simple re-abrasion of 11 μm grit sandpaper

    图  11  含有2 μm (a) 和 20 μm (b) SiO2颗粒的EP-PDMS-PVDF-SiO2涂层被38 μm粒度砂纸摩擦失去超疏水性能后的表面形貌;含有2 μm (c) 和 20 μm (d) SiO2颗粒的EP-PDMS-PVDF-SiO2涂层丧失超疏水性能后再次被11 μm粒度砂纸摩擦1-2个周期后的表面形貌

    Figure  11.  The surface morphologies of the EP-PDMS-PVDF-SiO2 coatings with the addition of 2 μm (a) and 20 μm (b) SiO2 particles which lose their superhydrophobic performance by the abrasion of 38 μm grit sandpaper; after being re-abraded by 11 μm grit sandpaper, the surface morphologies of the two EP-PDMS-PVDF-SiO2 coatings which have been abraded by the 400 grit sandpaper with the addition of (c) 2 and (d) 20 μm SiO2 particles

    图  12  含有不同尺寸微米级SiO2颗粒的EP-PDMS-PVDF-SiO2涂层被不同粒度数砂纸摩擦后单位基底面积损失的涂层质量R随摩擦周期数的变化曲线: (a) 0.5 μm, (b) 2 μm, (c) 5 μm, (d) 10 μm, (e) 20 μm, (f) 35 μm

    Figure  12.  The changes of the R of the EP-PDMS-PVDF-SiO2 coatings with different micron-sized SiO2 particles which were abraded by the different grit sandpaper: (a) 0.5 μm, (b) 2 μm, (c) 5 μm, (d) 10 μm, (e) 20 μm, (f) 35 μm

    图  13  含有不同尺寸(a) 0.5 μm、(b) 2 μm 和 (c) 20 μm SiO2颗粒的EP-PDMS-PVDF-SiO2涂层黏附力测试结果;(d) EP-PDMS-PVDF-SiO2涂层耐酸/碱/盐性能;(e) EP-PDMS-PVDF-SiO2涂层耐紫外线性能;(f) EP-PDMS-PVDF-SiO2涂层耐高低温性能

    Figure  13.  The adhesion test results of the EP-PDMS-PVDF-SiO2 coatings with the addition of (a) 0.5 , (b) 2 and (c) 20 μm SiO2 particles; the changes of the WCAs and WSAs of the EP-PDMS-PVDF-SiO2 coating after (d) the immersion in acid/alkali/salt solution, (e) the ultraviolet radiation and (f) the treatments at 180 / -20℃ ambient environment, respectively

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  • 收稿日期:  2024-01-25
  • 修回日期:  2024-03-14
  • 录用日期:  2024-03-22
  • 网络出版日期:  2024-04-23

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