Bio-based coatings with liquid repellency for various applications
Bio-based coatings with liquid repellency for various applications
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适用于各种应用的具有拒液性的生物基涂料
DOI：
10.1016/j.cej.2019.123042
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发表时间：
2020-02
影响因子：
15.1
通讯作者：
Fu Heqing
中科院分区：
文献类型：
--
作者：
Zhong Ximing;Lv Lizhang;Hu Hengfeng;Jiang Xiang;Fu Heqing
以2-巯基乙醇改性蓖麻油（COME）为涂层前体，聚二甲基硅氧烷（PDMS）为拒液剂，六甲氧基甲基三聚氰胺（HMMM）为固化剂，研制了一种新型生物基拒液涂层体系。所得涂层表现出优异的拒液性，并且它们表现出惊人的抗油墨能力和自清洁性能。此外，这些生物基涂料对水性和油性涂料以及指纹液显示出显著的排斥性，表明它们可以潜在地用于防涂鸦和防指纹目的。此外，由于其对各种腐蚀剂的显著抵抗力，它们可用于保护基材免受恶劣化学条件的影响。更引人注目的是，这些涂层可以染成各种颜色，而不会影响其液体排斥性。与商用的含氟双疏涂料、有机硅涂料和Never Wet超疏水涂料相比，无氟生物基涂料在拒液性能和应用前景方面显示出不可比拟的优势。值得注意的是，它们甚至在经受5000次磨损循环后也能够保持拒液性，这表明它们具有显著的机械鲁棒性。因此，这些新开发的生物基拒液涂料具有广泛的应用前景。
In this work, a novel bio-based liquid-repellent coating system was first developed by using 2-mercaptoethanol-modified castor oil (COME) as a coating precursor, polydimethylsiloxane (PDMS) as a liquid-repellent agent, and hexamethoxymethylmelamine (HMMM) as a curing agent. The resultant coatings demonstrate exceptional liquid repellency, and they exhibit striking anti-ink ability and self-cleaning performance. Besides, these bio-based coatings show remarkable repellency against water-borne and oil-borne paints as well as fingerprint liquid, indicating that they can potentially be used for anti-graffiti and anti-fingerprint purposes. Furthermore, due to their remarkable resistance against various corrosive agents, they can be employed to protect substrates against harsh chemical conditions. More strikingly, these coatings can be dyed into various colors without compromising their liquid repellency. Compared with commercial fluorinated amphiphobic coatings, silicone-based coatings, and Never Wet superhydrophobic coatings, these fluoride-free bio-based coatings show incomparable advantages in terms of liquid-repellent performances and application foreground. It is noteworthy that, they are able to maintain liquid repellency even after being subjected to 5000 abrasion cycles, indicative of their remarkable mechanical robustness. Therefore, these newly developed bio-based liquid-repellent coatings are promising for widespread applications.
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影响因子：
11.9
作者：
Hu, Heng;Liu, Guojun;Wang, Jiandong
通讯作者：
Wang, Jiandong
界面摩擦控制
影响因子：
5.4
作者：
周峰
通讯作者：
周峰
影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
2.3
作者：
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通讯作者：
Ilker S. Bayer;C. Megaridis;Jie Zhang;D. Gamota;A. Biswas