文章信息/Info

Title:

Preparation of Superhydrophobic Microstructure Surface by the Deposition Melting Method

文章編號(hào):

1674-3962(2020)01-0059-05

作者:

劉洋1; 歐陽(yáng)清1; 欒紅偉 2

(1.海軍工程大學(xué)動(dòng)力工程學(xué)院,湖北 武漢 430033;2. 海軍工程大學(xué)教研保障中心,湖北 武漢 430033)

Author(s):

LIU Yang1;  OUYANG Qing1;  LUAN Hongwei2

(1. College of Power Engineering, Naval University of Engineering, Wuhan 430033, China) (2. Teaching and Research Guarantee Center, Naval University of Engineering, Wuhan 430033, China)

關(guān)鍵詞:

超疏水微結(jié)構(gòu)表面; 沉積熔融; 金屬顆粒分散; 超聲振動(dòng)

Keywords:

superhydrophobic microstructure surface;  deposition melting method;  dispersion of metal particles;  supersonic vibration

分類號(hào):

TG178;O647.1

DOI:

10.7502/j.issn.1674-3962.201808004

文獻(xiàn)標(biāo)志碼:

A

摘要:

傳統(tǒng)超疏水表面制備技術(shù)都有著各自的缺點(diǎn)，如加工成本高、受加工設(shè)備精度影響大、形貌尺寸隨機(jī)性大。為得到低成本、形貌尺寸相對(duì)可控的超疏水微結(jié)構(gòu)表面，提出了新型制備技術(shù)——沉積熔融法。通過(guò)金屬顆粒懸濁液的自然沉積使微納尺寸的顆粒均勻分布在金屬表面，經(jīng)熔融、再結(jié)晶使其與金屬表面結(jié)合，再采用低表面能高分子修飾，制備出超疏水微結(jié)構(gòu)表面。通過(guò)此方法采用錫鉛合金在以黃銅、45號(hào)鋼、6063鋁合金基底上制備了超疏水微結(jié)構(gòu)表面，并發(fā)現(xiàn)了金屬基底材質(zhì)與微結(jié)構(gòu)表面的疏水性能之間沒(méi)有必然關(guān)系。當(dāng)微米尺寸的顆粒直徑越小，制備的微結(jié)構(gòu)表面的疏水性就越大。此外，相較于傳統(tǒng)超疏水表面加工方法，沉積熔融法可實(shí)現(xiàn)微米級(jí)形貌的制備，且具有加工效率高、工藝簡(jiǎn)單、成本低廉、不影響原工件強(qiáng)度等優(yōu)點(diǎn)，但其難以在弧形表面上應(yīng)用的問(wèn)題需要進(jìn)一步研究。

Abstract:

Traditional preparation techniques for superhydrophobic surface have their own shortcomings, such as high processing costs, being prone to influence by the accuracy of equipment, high randomicity in morphologies and size. In order to obtain superhydrophobic surface with low cost and relatively controllable microstructure, deposition melting method was proposed. Through the natural deposition of metal�瞤article suspension, the micro/nano-sized particles can be evenly distributed on the metal surface. Then, the particles are bonded to metal surface by melting and recrystallization. Finally, the superhydrophobic microstructure surface is prepared after being modified by low surface energy polymer. By this method, superhydrophobic microstructure surfaces on brass,NO.45 steel and 6063 aluminum with Sn-Pb alloy particles were produced. It is found that there is no inevitable relationship between metal substrate and hydrophobicity of microstructure surface. However, the smaller the diameter of micro-sized grain is, the greater the hydrophobicity is. Moreover, compared to other traditional methods, deposition melting method can achieve the controllable preparation of microstructure surface. Furthermore, there are several other advantages, such as high processing efficiency, simple process, low cost, and having little influence on the strength of substrate. But, deposition melting method is difficult to apply on surface, which needs to be solved by further research.