Strategy to construct polyzwitterionic hydrogel coating with antifouling, drag-reducing and weak swelling performance.
Strategy to construct polyzwitterionic hydrogel coating with antifouling, drag-reducing and weak swelling performance.
复制标题
防污减阻弱溶胀聚两性离子水凝胶涂层的构建策略
DOI：
10.1039/c8ra09358j
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发表时间：
2019-01-14
期刊：
影响因子：
3.9
通讯作者：
Zheng, Qiang
中科院分区：
文献类型：
--
作者：
Shen, Jiajia;Du, Miao;Wu, Ziliang;Song, Yihu;Zheng, Qiang
生物污染，即海洋微生物密集附着在各种水下表面上，已成为世界范围内严重的经济问题。与大多数基于硬质固体材料或涂层的防污方法不同，本文制备了一种由两性离子聚合物组成的柔软湿涂层。结合聚-N-(3-磺丙基)-N-(甲基丙烯酰氧基乙基)-N,N-二甲基铵甜菜碱(PSBMA)的抗聚电解质效应和聚丙烯酸(PAA)典型的聚电解质效应，获得了在盐溶液中弱溶胀的双组分水凝胶涂层，可以避免与固体基材剥离。双组分水凝胶涂层表现出很强的拉伸性能以及良好的压缩性能和滑爽性。虽然涂层较大的杨氏模量相对削弱了减阻效果，但在低滑动速率下很容易进入混合润滑区域，从而可以获得高速率下的低摩擦系数。借助硅烷偶联剂和在水和盐溶液中的弱变形，水凝胶涂层可以紧密地结合在固体表面上。经过强烈的砂水磨损后，双组分水凝胶涂层仍能保持原有状态，无裂纹和剥落。水凝胶涂层表现出良好的抗菌粘附性和抗蛋白质吸附性。本文报道的双组分两性离子水凝胶涂层为海洋防污减阻研究提供了一种新策略。制备了具有弱溶胀行为和强机械性能的聚两性离子水凝胶涂料，并表现出优异的防污减阻性能。
Biological fouling, where marine microorganisms attach densely to various submerged surfaces, has been a serious economic problem worldwide. Different from most antifouling approaches based on stiff and solid materials or coatings, a soft and wet coating composed of zwitterionic polymer was prepared in this paper. With the combination of the anti-polyelectrolyte effect of poly-N-(3-sulfopropyl)-N-(methacryloxyethyl)-N,N-dimethylammonium betaine (PSBMA) and the typical polyelectrolyte effect of polyacrylic acid (PAA), a bicomponent hydrogel coating with weak swelling in saline solution was achieved, which could avoid peeling from solid substrates. The bicomponent hydrogel coating showed strong tensile properties and good compression performance and slipperiness. Although the large Young's modulus of the coating relatively weakens the drag reduction effect, entering the mixed lubrication region in low sliding rate is easy and a low friction coefficient at a high rate could thus be obtained. With the aid of silane coupling agent and weak deformation in water and saline solution, the hydrogel coating could be bound tightly on solid surfaces. After strong sandy water abrasion, the bicomponent hydrogel coating could maintain its original state without any cracks and peeling. The hydrogel coating exhibits good anti-bacterial adhesion and anti-protein adsorption. The bicomponent zwitterionic hydrogel coating reported here provides a new strategy for marine antifouling and drag reduction studies. Polyzwitterionic hydrogel coatings with weak swelling behavior and strong mechanical properties were prepared and exhibited excellent antifouling and drag-reducing performances.
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影响因子：
14
作者：
Carr, Louisa R.;Zhou, Yibo;Jiang, Shaoyi
通讯作者：
Jiang, Shaoyi
影响因子：
6.2
作者：
Ekblad, Tobias;Bergstroem, Gunnar;Liedberg, Bo
通讯作者：
Liedberg, Bo
影响因子：
15
作者：
Hu, Zhaokang;Chen, Liang;DeSimone, Joseph M.
通讯作者：
DeSimone, Joseph M.
影响因子：
2.7
作者：
Hadfield, MG
通讯作者：
Hadfield, MG
DOI：
10.1021/acs.langmuir.8b00838
发表时间：
2019-02-05
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Leigh BL;Cheng E;Xu L;Derk A;Hansen MR;Guymon CA
通讯作者：
Guymon CA