激光诱导硅橡胶超疏水表面及其耐磨性研究

赵乃君, 华汶乐, 陈列, 黄宫淇

doi:10.16577/j.issn.1001-1560.2024.0200

材料保护 >

2024 , Vol. 57 >Issue 9: 45 - 53

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0200

研究篇

激光诱导硅橡胶超疏水表面及其耐磨性研究

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湖北工业大学机械工程学院

黄宫淇(1999-)，硕士，主要研究方向为材料表面改性、表面微纳结构激光制造技术，电话:15527167215，E-mail:102110142＠hbut.edu.cn

收稿日期: 2024-01-22

修回日期: 2024-02-12

录用日期: 2024-02-13

网络出版日期: 2024-11-14

基金资助

大学生创新创业训练计划项目经费资助(202210500004)

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Laser-Induced Superhydrophobic Surface of Silicone Rubber and Its Wear Resistance

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(School of Mechanical Engineering， Hubei University of Technology， Wuhan 430068， China)

HUANG Gongqi (1999-)， Master， Research Focus: Material Surface Modification， Laser Manufacturing Technology of Surface Micro-Nano Structures， Tel.: 15527167215，E-mail:102110142＠hbut.edu.cn

Received date: 2024-01-22

Revised date: 2024-02-12

Accepted date: 2024-02-13

Online published: 2024-11-14

Supported by

Funding Support for College Students’ Innovative Entrepreneurial Training Plan Program (202210500004)

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摘要

硅橡胶是一种应用广泛的绝缘材料，对硅橡胶表面进行超疏水改性能够使得其在实际应用场合中变得更为安全可靠。激光加工处理硅橡胶表面能够绿色高效地制备超疏水表面，并使其获得耐腐蚀、抗结冰和自清洁等性能。但在超疏水表面的实际应用中，表面脆弱的疏水结构难以抵御外界的机械磨损。通过改变激光能量密度制备了不同表面微纳复合结构的超疏水硅橡胶表面，设计砂纸磨损测试对超疏水硅橡胶表面的耐磨性进行了研究。样品在承受2.2 kPa 的压力下，超疏水表面在2 000 目的砂纸上进行单次100 mm 行程的摩损，在表面失去疏水性后观测其表面形貌的变化。结果表明:持续的磨损破坏了超疏水硅橡胶表面的微纳复合结构，导致其失去疏水性。激光能量密度为15.0 J/cm2制备的超疏水表面能够在12 次磨损后保持其疏水性能，而激光能量密度为10.0 J/cm2制备的超疏水表面在7 次磨损后就失去了疏水性能，这是由于更大的激光能量密度下在表面构筑了更加致密和均匀的微纳复合结构，呈现出更好的耐磨性。

关键词： 激光技术; 硅橡胶; 超疏水表面; 激光能量密度; 耐磨性

本文引用格式

赵乃君, 华汶乐, 陈列, 黄宫淇 . 激光诱导硅橡胶超疏水表面及其耐磨性研究[J]. 材料保护, 2024 , 57(9) : 45 -53 . DOI: 10.16577/j.issn.1001-1560.2024.0200

Abstract

Silicone rubber is a widely used insulating material， and the surface modification of silicone rubber to achieve superhydrophobicity enhances its safety and reliability in practical applications.Laser processing of silicone rubber surfaces is able to prepare superhydrophobic surfaces green and efficiently， and makes it corrosion resistance， icing resistance， self-cleaning and other properties.However， the fragile hydrophobic structure on the surface is susceptible to external mechanical wear in practical applications of superhydrophobic surfaces.In this study，superhydrophobic silicone rubber surfaces with different surface micro- and nanocomposite structures were prepared by varying the laser energy density.The abrasion resistance of the superhydrophobic silicone rubber surfaces was investigated through designing sandpaper abrasion tests:under a pressure of 2.2 kPa， the superhydrophobic surface was subjected to a single 100 mm abrasion on 2 000 ＃ sandpaper， and the changes of surface morphology were observed after the loss of superhydrophobicity.Results showed that continuous wear destroyed the micro- and nanocomposite structures on the surface of superhydrophobic silicone rubber， resulting in its failure of hydrophobicity.The superhydrophobic surface obtained with laser energy density of 15.0 J/cm2 maintained their hydrophobicity after 12 times of abrasion， whereas the superhydrophobic surface obtained with a laser energy density of 10.0 J/cm2 lost its hydrophobic properties after 7 times of wear.This might be attributed to the fact that higher laser energy densities constructed a more compact and uniform micro- and nanocomposite structure on the surface， and thereby exhibited better abrasion resistance.

Key words： laser technology; silicone rubber; superhydrophobic surface; laser energy density; wear resistance

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