鋁合金電刷鍍與激光微加工耦合制備超疏水表面及其特性
發(fā)布時(shí)間:2018-11-28 09:00
【摘要】:通過(guò)電刷鍍與激光微加工技術(shù)相耦合的方法,在鋁合金表面制備出一種微觀尺度凸包與溝槽相互排列的特殊結(jié)構(gòu)。未經(jīng)任何疏水修飾的情況下,得到了一種低黏附性的超疏水表面,其靜態(tài)接觸角達(dá)到156°,滾動(dòng)角約為4.8°,并且表面在滾動(dòng)性方面表現(xiàn)出各向(平行溝槽方向和垂直溝槽方向)異性。所制備的表面對(duì)高溫環(huán)境具有較好的穩(wěn)定性,低溫條件下也保持在接近138°較大接觸角的疏水狀態(tài),且在抗結(jié)冰方面表現(xiàn)出優(yōu)異的性能。通過(guò)3.5%(質(zhì)量分?jǐn)?shù))NaCl溶液的Tafel曲線測(cè)量發(fā)現(xiàn),基體被耦合方法處理后腐蝕阻抗平均提高3個(gè)數(shù)量級(jí)。
[Abstract]:By means of the coupling method of brush plating and laser micromachining, a special structure of micro-scale convex hull and groove arrangement was prepared on the surface of aluminum alloy. A superhydrophobic surface with low adhesion was obtained without any hydrophobic modification. The static contact angle was 156 擄and the rolling angle was 4.8 擄. And the surface shows the opposite direction (parallel grooves and vertical grooves) in rolling. The prepared surface has good stability to high temperature environment, and maintains hydrophobic state of close to 138 擄contact angle at low temperature, and shows excellent performance in ice resistance. By measuring the Tafel curves of 3.5% (mass fraction) NaCl solution, it is found that the corrosion impedance increases by an average of three orders of magnitude after the matrix is treated by coupling method.
【作者單位】: 長(zhǎng)春理工大學(xué)機(jī)電工程學(xué)院;裝甲兵技術(shù)學(xué)院機(jī)械工程系;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(51505039) 吉林省科技發(fā)展計(jì)劃資助項(xiàng)目(20150204018GX) 吉林省高?茖W(xué)技術(shù)研究資助項(xiàng)目(22215096) 中國(guó)博士后科學(xué)基金資助項(xiàng)目(2014M551145) 長(zhǎng)春理工大學(xué)青年科學(xué)基金資助項(xiàng)目(2021000522)
【分類號(hào)】:TG174.4
[Abstract]:By means of the coupling method of brush plating and laser micromachining, a special structure of micro-scale convex hull and groove arrangement was prepared on the surface of aluminum alloy. A superhydrophobic surface with low adhesion was obtained without any hydrophobic modification. The static contact angle was 156 擄and the rolling angle was 4.8 擄. And the surface shows the opposite direction (parallel grooves and vertical grooves) in rolling. The prepared surface has good stability to high temperature environment, and maintains hydrophobic state of close to 138 擄contact angle at low temperature, and shows excellent performance in ice resistance. By measuring the Tafel curves of 3.5% (mass fraction) NaCl solution, it is found that the corrosion impedance increases by an average of three orders of magnitude after the matrix is treated by coupling method.
【作者單位】: 長(zhǎng)春理工大學(xué)機(jī)電工程學(xué)院;裝甲兵技術(shù)學(xué)院機(jī)械工程系;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(51505039) 吉林省科技發(fā)展計(jì)劃資助項(xiàng)目(20150204018GX) 吉林省高?茖W(xué)技術(shù)研究資助項(xiàng)目(22215096) 中國(guó)博士后科學(xué)基金資助項(xiàng)目(2014M551145) 長(zhǎng)春理工大學(xué)青年科學(xué)基金資助項(xiàng)目(2021000522)
【分類號(hào)】:TG174.4
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